./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia_rsrc.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_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/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_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/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_00b650de-095b-40e5-94df-93f6b60382bb/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 afcb5021e5e481beab65460a6812c8dbe401f7b06cf3fcadf18504395cd90d4a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 06:49:45,068 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 06:49:45,121 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 06:49:45,125 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 06:49:45,125 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 06:49:45,147 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 06:49:45,147 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 06:49:45,147 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 06:49:45,148 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 06:49:45,148 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 06:49:45,148 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 06:49:45,148 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 06:49:45,149 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 06:49:45,149 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 06:49:45,149 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 06:49:45,149 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 06:49:45,149 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 06:49:45,149 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 06:49:45,149 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 06:49:45,149 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 06:49:45,149 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 06:49:45,150 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 06:49:45,150 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 06:49:45,150 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 06:49:45,150 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 06:49:45,150 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 06:49:45,150 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:49:45,150 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:49:45,150 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:49:45,150 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:49:45,151 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 06:49:45,151 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:49:45,151 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:49:45,151 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:49:45,151 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:49:45,151 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 06:49:45,151 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 06:49:45,151 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 06:49:45,151 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 06:49:45,151 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 06:49:45,152 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 06:49:45,152 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 06:49:45,152 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 06:49:45,152 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 06:49:45,152 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 06:49:45,152 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_00b650de-095b-40e5-94df-93f6b60382bb/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 -> afcb5021e5e481beab65460a6812c8dbe401f7b06cf3fcadf18504395cd90d4a [2024-12-02 06:49:45,364 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 06:49:45,371 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 06:49:45,373 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 06:49:45,374 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 06:49:45,374 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 06:49:45,376 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i [2024-12-02 06:49:47,980 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/data/ddcbbd235/007a1eb2b801441faca352d4aaaa4919/FLAGc85404863 [2024-12-02 06:49:48,390 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 06:49:48,391 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i [2024-12-02 06:49:48,423 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/data/ddcbbd235/007a1eb2b801441faca352d4aaaa4919/FLAGc85404863 [2024-12-02 06:49:48,550 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/data/ddcbbd235/007a1eb2b801441faca352d4aaaa4919 [2024-12-02 06:49:48,552 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 06:49:48,553 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 06:49:48,554 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 06:49:48,554 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 06:49:48,559 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 06:49:48,560 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:49:48" (1/1) ... [2024-12-02 06:49:48,561 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f387f55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:49:48, skipping insertion in model container [2024-12-02 06:49:48,561 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:49:48" (1/1) ... [2024-12-02 06:49:48,632 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 06:49:49,375 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_00b650de-095b-40e5-94df-93f6b60382bb/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i[136556,136569] [2024-12-02 06:49:49,463 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:49:49,488 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 06:49:49,582 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [3154] [2024-12-02 06:49:49,669 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_00b650de-095b-40e5-94df-93f6b60382bb/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i[136556,136569] [2024-12-02 06:49:49,683 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:49:49,734 INFO L204 MainTranslator]: Completed translation [2024-12-02 06:49:49,734 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:49:49 WrapperNode [2024-12-02 06:49:49,735 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 06:49:49,736 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 06:49:49,736 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 06:49:49,736 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 06:49:49,742 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:49:49" (1/1) ... [2024-12-02 06:49:49,779 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:49:49" (1/1) ... [2024-12-02 06:49:49,867 INFO L138 Inliner]: procedures = 175, calls = 840, calls flagged for inlining = 50, calls inlined = 47, statements flattened = 2172 [2024-12-02 06:49:49,867 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 06:49:49,867 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 06:49:49,867 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 06:49:49,868 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 06:49:49,874 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:49:49" (1/1) ... [2024-12-02 06:49:49,874 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:49:49" (1/1) ... [2024-12-02 06:49:49,888 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:49:49" (1/1) ... [2024-12-02 06:49:50,091 INFO L175 MemorySlicer]: Split 389 memory accesses to 16 slices as follows [2, 4, 36, 5, 3, 4, 14, 215, 6, 9, 7, 1, 5, 41, 5, 32]. 55 percent of accesses are in the largest equivalence class. The 36 initializations are split as follows [2, 4, 0, 5, 3, 4, 0, 0, 0, 0, 7, 1, 5, 0, 5, 0]. The 151 writes are split as follows [0, 0, 2, 0, 0, 0, 12, 54, 3, 7, 0, 0, 0, 41, 0, 32]. [2024-12-02 06:49:50,091 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:49:49" (1/1) ... [2024-12-02 06:49:50,091 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:49:49" (1/1) ... [2024-12-02 06:49:50,163 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:49:49" (1/1) ... [2024-12-02 06:49:50,166 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:49:49" (1/1) ... [2024-12-02 06:49:50,177 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:49:49" (1/1) ... [2024-12-02 06:49:50,189 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:49:49" (1/1) ... [2024-12-02 06:49:50,196 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:49:49" (1/1) ... [2024-12-02 06:49:50,211 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 06:49:50,212 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 06:49:50,212 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 06:49:50,212 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 06:49:50,213 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:49:49" (1/1) ... [2024-12-02 06:49:50,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:49:50,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:49:50,244 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 06:49:50,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 06:49:50,272 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2024-12-02 06:49:50,272 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2024-12-02 06:49:50,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 06:49:50,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 06:49:50,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-02 06:49:50,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-02 06:49:50,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-02 06:49:50,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-12-02 06:49:50,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-12-02 06:49:50,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-12-02 06:49:50,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-12-02 06:49:50,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-12-02 06:49:50,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-12-02 06:49:50,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-12-02 06:49:50,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-12-02 06:49:50,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-12-02 06:49:50,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2024-12-02 06:49:50,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2024-12-02 06:49:50,273 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2024-12-02 06:49:50,273 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2024-12-02 06:49:50,273 INFO L130 BoogieDeclarations]: Found specification of procedure pci_bus_alloc_resource [2024-12-02 06:49:50,273 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_bus_alloc_resource [2024-12-02 06:49:50,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 06:49:50,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 06:49:50,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 06:49:50,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 06:49:50,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 06:49:50,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-02 06:49:50,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-12-02 06:49:50,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-12-02 06:49:50,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-12-02 06:49:50,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-12-02 06:49:50,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-12-02 06:49:50,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-12-02 06:49:50,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-12-02 06:49:50,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-12-02 06:49:50,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2024-12-02 06:49:50,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2024-12-02 06:49:50,274 INFO L130 BoogieDeclarations]: Found specification of procedure add_interval [2024-12-02 06:49:50,274 INFO L138 BoogieDeclarations]: Found implementation of procedure add_interval [2024-12-02 06:49:50,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-12-02 06:49:50,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-12-02 06:49:50,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 06:49:50,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 06:49:50,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 06:49:50,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 06:49:50,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 06:49:50,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 06:49:50,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 06:49:50,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 06:49:50,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-12-02 06:49:50,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-12-02 06:49:50,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-12-02 06:49:50,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-12-02 06:49:50,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-12-02 06:49:50,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-12-02 06:49:50,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-12-02 06:49:50,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-12-02 06:49:50,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-12-02 06:49:50,275 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-12-02 06:49:50,275 INFO L130 BoogieDeclarations]: Found specification of procedure sub_interval [2024-12-02 06:49:50,275 INFO L138 BoogieDeclarations]: Found implementation of procedure sub_interval [2024-12-02 06:49:50,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-12-02 06:49:50,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-12-02 06:49:50,276 INFO L130 BoogieDeclarations]: Found specification of procedure nonstatic_find_mem_region [2024-12-02 06:49:50,276 INFO L138 BoogieDeclarations]: Found implementation of procedure nonstatic_find_mem_region [2024-12-02 06:49:50,276 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-12-02 06:49:50,276 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-12-02 06:49:50,276 INFO L130 BoogieDeclarations]: Found specification of procedure free_region [2024-12-02 06:49:50,276 INFO L138 BoogieDeclarations]: Found implementation of procedure free_region [2024-12-02 06:49:50,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_7 [2024-12-02 06:49:50,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_7 [2024-12-02 06:49:50,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 06:49:50,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 06:49:50,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 06:49:50,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 06:49:50,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 06:49:50,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 06:49:50,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 06:49:50,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 06:49:50,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-12-02 06:49:50,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-12-02 06:49:50,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-12-02 06:49:50,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-12-02 06:49:50,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-12-02 06:49:50,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-12-02 06:49:50,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-12-02 06:49:50,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-12-02 06:49:50,277 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-12-02 06:49:50,277 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-12-02 06:49:50,277 INFO L130 BoogieDeclarations]: Found specification of procedure __nonstatic_adjust_io_region [2024-12-02 06:49:50,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __nonstatic_adjust_io_region [2024-12-02 06:49:50,277 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2024-12-02 06:49:50,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2024-12-02 06:49:50,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-12-02 06:49:50,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-12-02 06:49:50,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_6 [2024-12-02 06:49:50,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_6 [2024-12-02 06:49:50,277 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2024-12-02 06:49:50,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2024-12-02 06:49:50,277 INFO L130 BoogieDeclarations]: Found specification of procedure nonstatic_release_resource_db [2024-12-02 06:49:50,277 INFO L138 BoogieDeclarations]: Found implementation of procedure nonstatic_release_resource_db [2024-12-02 06:49:50,277 INFO L130 BoogieDeclarations]: Found specification of procedure do_mem_probe [2024-12-02 06:49:50,278 INFO L138 BoogieDeclarations]: Found implementation of procedure do_mem_probe [2024-12-02 06:49:50,278 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_make_resource [2024-12-02 06:49:50,278 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_make_resource [2024-12-02 06:49:50,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-12-02 06:49:50,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-12-02 06:49:50,278 INFO L130 BoogieDeclarations]: Found specification of procedure nonstatic_init [2024-12-02 06:49:50,278 INFO L138 BoogieDeclarations]: Found implementation of procedure nonstatic_init [2024-12-02 06:49:50,278 INFO L130 BoogieDeclarations]: Found specification of procedure nonstatic_find_io [2024-12-02 06:49:50,278 INFO L138 BoogieDeclarations]: Found implementation of procedure nonstatic_find_io [2024-12-02 06:49:50,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-12-02 06:49:50,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-12-02 06:49:50,278 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 06:49:50,278 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 06:49:50,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 06:49:50,278 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-12-02 06:49:50,278 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-12-02 06:49:50,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2024-12-02 06:49:50,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2024-12-02 06:49:50,278 INFO L130 BoogieDeclarations]: Found specification of procedure pccard_sysfs_add_rsrc [2024-12-02 06:49:50,278 INFO L138 BoogieDeclarations]: Found implementation of procedure pccard_sysfs_add_rsrc [2024-12-02 06:49:50,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 06:49:50,278 INFO L130 BoogieDeclarations]: Found specification of procedure static_init [2024-12-02 06:49:50,279 INFO L138 BoogieDeclarations]: Found implementation of procedure static_init [2024-12-02 06:49:50,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 06:49:50,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 06:49:50,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 06:49:50,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 06:49:50,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 06:49:50,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 06:49:50,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 06:49:50,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-12-02 06:49:50,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-12-02 06:49:50,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-12-02 06:49:50,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-12-02 06:49:50,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-12-02 06:49:50,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-12-02 06:49:50,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-12-02 06:49:50,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-12-02 06:49:50,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-12-02 06:49:50,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-12-02 06:49:50,279 INFO L130 BoogieDeclarations]: Found specification of procedure do_validate_mem [2024-12-02 06:49:50,280 INFO L138 BoogieDeclarations]: Found implementation of procedure do_validate_mem [2024-12-02 06:49:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_resource [2024-12-02 06:49:50,280 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_resource [2024-12-02 06:49:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_nonstatic_validate_mem [2024-12-02 06:49:50,280 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_nonstatic_validate_mem [2024-12-02 06:49:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 06:49:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 06:49:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 06:49:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 06:49:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 06:49:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 06:49:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-02 06:49:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-12-02 06:49:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-12-02 06:49:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-12-02 06:49:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-12-02 06:49:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-12-02 06:49:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-12-02 06:49:50,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-12-02 06:49:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-12-02 06:49:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-12-02 06:49:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure static_find_io [2024-12-02 06:49:50,281 INFO L138 BoogieDeclarations]: Found implementation of procedure static_find_io [2024-12-02 06:49:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2024-12-02 06:49:50,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2024-12-02 06:49:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure show_mem_db [2024-12-02 06:49:50,281 INFO L138 BoogieDeclarations]: Found implementation of procedure show_mem_db [2024-12-02 06:49:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure adjust_io [2024-12-02 06:49:50,281 INFO L138 BoogieDeclarations]: Found implementation of procedure adjust_io [2024-12-02 06:49:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 06:49:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2024-12-02 06:49:50,281 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2024-12-02 06:49:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-12-02 06:49:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-12-02 06:49:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-12-02 06:49:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-12-02 06:49:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-12-02 06:49:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-12-02 06:49:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-12-02 06:49:50,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-12-02 06:49:50,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-12-02 06:49:50,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-12-02 06:49:50,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-12-02 06:49:50,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-12-02 06:49:50,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-12-02 06:49:50,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-12-02 06:49:50,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-12-02 06:49:50,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-12-02 06:49:50,282 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-12-02 06:49:50,282 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-12-02 06:49:50,282 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-12-02 06:49:50,282 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-12-02 06:49:50,282 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-12-02 06:49:50,282 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-12-02 06:49:50,282 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-12-02 06:49:50,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-12-02 06:49:50,282 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2024-12-02 06:49:50,282 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2024-12-02 06:49:50,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 06:49:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 06:49:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 06:49:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 06:49:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 06:49:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 06:49:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 06:49:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 06:49:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 06:49:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-12-02 06:49:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-12-02 06:49:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-12-02 06:49:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-12-02 06:49:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-12-02 06:49:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-12-02 06:49:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-12-02 06:49:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2024-12-02 06:49:50,283 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2024-12-02 06:49:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure adjust_memory [2024-12-02 06:49:50,283 INFO L138 BoogieDeclarations]: Found implementation of procedure adjust_memory [2024-12-02 06:49:50,283 INFO L130 BoogieDeclarations]: Found specification of procedure adjust_resource [2024-12-02 06:49:50,284 INFO L138 BoogieDeclarations]: Found implementation of procedure adjust_resource [2024-12-02 06:49:50,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 06:49:50,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 06:49:50,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_ops_mutex_of_pcmcia_socket [2024-12-02 06:49:50,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_ops_mutex_of_pcmcia_socket [2024-12-02 06:49:50,284 INFO L130 BoogieDeclarations]: Found specification of procedure claim_region [2024-12-02 06:49:50,284 INFO L138 BoogieDeclarations]: Found implementation of procedure claim_region [2024-12-02 06:49:50,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_ops_mutex_of_pcmcia_socket [2024-12-02 06:49:50,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_ops_mutex_of_pcmcia_socket [2024-12-02 06:49:50,284 INFO L130 BoogieDeclarations]: Found specification of procedure show_io_db [2024-12-02 06:49:50,284 INFO L138 BoogieDeclarations]: Found implementation of procedure show_io_db [2024-12-02 06:49:50,744 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 06:49:50,746 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 06:49:50,867 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-12-02 06:49:58,157 INFO L? ?]: Removed 932 outVars from TransFormulas that were not future-live. [2024-12-02 06:49:58,157 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 06:49:58,186 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 06:49:58,186 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-12-02 06:49:58,187 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:49:58 BoogieIcfgContainer [2024-12-02 06:49:58,187 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 06:49:58,189 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 06:49:58,190 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 06:49:58,195 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 06:49:58,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:49:48" (1/3) ... [2024-12-02 06:49:58,195 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59bee0f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:49:58, skipping insertion in model container [2024-12-02 06:49:58,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:49:49" (2/3) ... [2024-12-02 06:49:58,196 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59bee0f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:49:58, skipping insertion in model container [2024-12-02 06:49:58,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:49:58" (3/3) ... [2024-12-02 06:49:58,197 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i [2024-12-02 06:49:58,213 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 06:49:58,216 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i that has 51 procedures, 885 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2024-12-02 06:49:58,296 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 06:49:58,307 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;@6aa3c69, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 06:49:58,308 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 06:49:58,314 INFO L276 IsEmpty]: Start isEmpty. Operand has 884 states, 646 states have (on average 1.4024767801857585) internal successors, (906), 664 states have internal predecessors, (906), 187 states have call successors, (187), 50 states have call predecessors, (187), 49 states have return successors, (178), 178 states have call predecessors, (178), 178 states have call successors, (178) [2024-12-02 06:49:58,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2024-12-02 06:49:58,332 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:49:58,332 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:49:58,333 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:49:58,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:49:58,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1441936407, now seen corresponding path program 1 times [2024-12-02 06:49:58,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:49:58,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626671650] [2024-12-02 06:49:58,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:49:58,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:49:59,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:49:59,354 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 957 trivial. 0 not checked. [2024-12-02 06:49:59,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:49:59,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626671650] [2024-12-02 06:49:59,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626671650] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:49:59,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466760965] [2024-12-02 06:49:59,356 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:49:59,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:49:59,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:49:59,359 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:49:59,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 06:50:00,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:50:00,676 INFO L256 TraceCheckSpWp]: Trace formula consists of 2674 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 06:50:00,687 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:50:00,715 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 929 trivial. 0 not checked. [2024-12-02 06:50:00,715 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:50:00,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466760965] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:50:00,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:50:00,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 06:50:00,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445953905] [2024-12-02 06:50:00,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:50:00,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 06:50:00,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:50:00,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 06:50:00,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 06:50:00,739 INFO L87 Difference]: Start difference. First operand has 884 states, 646 states have (on average 1.4024767801857585) internal successors, (906), 664 states have internal predecessors, (906), 187 states have call successors, (187), 50 states have call predecessors, (187), 49 states have return successors, (178), 178 states have call predecessors, (178), 178 states have call successors, (178) Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-12-02 06:50:00,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:50:00,835 INFO L93 Difference]: Finished difference Result 1763 states and 2615 transitions. [2024-12-02 06:50:00,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 06:50:00,837 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 261 [2024-12-02 06:50:00,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:50:00,852 INFO L225 Difference]: With dead ends: 1763 [2024-12-02 06:50:00,852 INFO L226 Difference]: Without dead ends: 868 [2024-12-02 06:50:00,859 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 06:50:00,861 INFO L435 NwaCegarLoop]: 1260 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:50:00,862 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1260 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:50:00,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2024-12-02 06:50:00,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 868. [2024-12-02 06:50:00,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 868 states, 641 states have (on average 1.3822152886115444) internal successors, (886), 648 states have internal predecessors, (886), 178 states have call successors, (178), 49 states have call predecessors, (178), 48 states have return successors, (173), 173 states have call predecessors, (173), 173 states have call successors, (173) [2024-12-02 06:50:00,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 1237 transitions. [2024-12-02 06:50:00,945 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 1237 transitions. Word has length 261 [2024-12-02 06:50:00,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:50:00,945 INFO L471 AbstractCegarLoop]: Abstraction has 868 states and 1237 transitions. [2024-12-02 06:50:00,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-12-02 06:50:00,946 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 1237 transitions. [2024-12-02 06:50:00,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2024-12-02 06:50:00,951 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:50:00,952 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:50:00,961 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 06:50:01,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 06:50:01,153 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:50:01,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:50:01,153 INFO L85 PathProgramCache]: Analyzing trace with hash 2119126489, now seen corresponding path program 1 times [2024-12-02 06:50:01,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:50:01,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945536110] [2024-12-02 06:50:01,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:50:01,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:50:01,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:50:02,149 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2024-12-02 06:50:02,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:50:02,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945536110] [2024-12-02 06:50:02,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945536110] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:50:02,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:50:02,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:50:02,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452405104] [2024-12-02 06:50:02,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:50:02,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:50:02,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:50:02,152 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:50:02,152 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:50:02,152 INFO L87 Difference]: Start difference. First operand 868 states and 1237 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-12-02 06:50:02,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:50:02,326 INFO L93 Difference]: Finished difference Result 2463 states and 3501 transitions. [2024-12-02 06:50:02,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:50:02,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 261 [2024-12-02 06:50:02,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:50:02,341 INFO L225 Difference]: With dead ends: 2463 [2024-12-02 06:50:02,341 INFO L226 Difference]: Without dead ends: 1646 [2024-12-02 06:50:02,345 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 06:50:02,346 INFO L435 NwaCegarLoop]: 1236 mSDtfsCounter, 1170 mSDsluCounter, 1153 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1170 SdHoareTripleChecker+Valid, 2389 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:50:02,346 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1170 Valid, 2389 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:50:02,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2024-12-02 06:50:02,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1631. [2024-12-02 06:50:02,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1631 states, 1220 states have (on average 1.3926229508196721) internal successors, (1699), 1231 states have internal predecessors, (1699), 314 states have call successors, (314), 97 states have call predecessors, (314), 96 states have return successors, (309), 308 states have call predecessors, (309), 309 states have call successors, (309) [2024-12-02 06:50:02,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1631 states to 1631 states and 2322 transitions. [2024-12-02 06:50:02,441 INFO L78 Accepts]: Start accepts. Automaton has 1631 states and 2322 transitions. Word has length 261 [2024-12-02 06:50:02,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:50:02,442 INFO L471 AbstractCegarLoop]: Abstraction has 1631 states and 2322 transitions. [2024-12-02 06:50:02,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-12-02 06:50:02,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1631 states and 2322 transitions. [2024-12-02 06:50:02,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2024-12-02 06:50:02,447 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:50:02,447 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:50:02,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 06:50:02,447 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:50:02,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:50:02,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1856581570, now seen corresponding path program 1 times [2024-12-02 06:50:02,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:50:02,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723916826] [2024-12-02 06:50:02,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:50:02,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:50:02,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:50:03,200 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2024-12-02 06:50:03,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:50:03,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723916826] [2024-12-02 06:50:03,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723916826] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:50:03,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:50:03,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:50:03,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791655033] [2024-12-02 06:50:03,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:50:03,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:50:03,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:50:03,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:50:03,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:50:03,202 INFO L87 Difference]: Start difference. First operand 1631 states and 2322 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 06:50:07,224 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 06:50:07,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:50:07,399 INFO L93 Difference]: Finished difference Result 4738 states and 6743 transitions. [2024-12-02 06:50:07,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:50:07,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 260 [2024-12-02 06:50:07,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:50:07,415 INFO L225 Difference]: With dead ends: 4738 [2024-12-02 06:50:07,415 INFO L226 Difference]: Without dead ends: 3158 [2024-12-02 06:50:07,420 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 06:50:07,421 INFO L435 NwaCegarLoop]: 1292 mSDtfsCounter, 1099 mSDsluCounter, 1222 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1099 SdHoareTripleChecker+Valid, 2514 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 06:50:07,421 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1099 Valid, 2514 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 06:50:07,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3158 states. [2024-12-02 06:50:07,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3158 to 3154. [2024-12-02 06:50:07,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3154 states, 2376 states have (on average 1.3981481481481481) internal successors, (3322), 2393 states have internal predecessors, (3322), 585 states have call successors, (585), 193 states have call predecessors, (585), 192 states have return successors, (580), 579 states have call predecessors, (580), 580 states have call successors, (580) [2024-12-02 06:50:07,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3154 states to 3154 states and 4487 transitions. [2024-12-02 06:50:07,528 INFO L78 Accepts]: Start accepts. Automaton has 3154 states and 4487 transitions. Word has length 260 [2024-12-02 06:50:07,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:50:07,529 INFO L471 AbstractCegarLoop]: Abstraction has 3154 states and 4487 transitions. [2024-12-02 06:50:07,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 06:50:07,529 INFO L276 IsEmpty]: Start isEmpty. Operand 3154 states and 4487 transitions. [2024-12-02 06:50:07,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-12-02 06:50:07,533 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:50:07,533 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:50:07,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 06:50:07,534 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:50:07,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:50:07,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1839836772, now seen corresponding path program 1 times [2024-12-02 06:50:07,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:50:07,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386102678] [2024-12-02 06:50:07,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:50:07,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:50:07,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:50:08,106 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2024-12-02 06:50:08,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:50:08,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386102678] [2024-12-02 06:50:08,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386102678] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:50:08,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:50:08,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:50:08,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431967776] [2024-12-02 06:50:08,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:50:08,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:50:08,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:50:08,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:50:08,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:50:08,108 INFO L87 Difference]: Start difference. First operand 3154 states and 4487 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-12-02 06:50:08,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:50:08,314 INFO L93 Difference]: Finished difference Result 9238 states and 13117 transitions. [2024-12-02 06:50:08,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:50:08,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 264 [2024-12-02 06:50:08,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:50:08,343 INFO L225 Difference]: With dead ends: 9238 [2024-12-02 06:50:08,343 INFO L226 Difference]: Without dead ends: 6135 [2024-12-02 06:50:08,353 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 06:50:08,353 INFO L435 NwaCegarLoop]: 1280 mSDtfsCounter, 1157 mSDsluCounter, 1153 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 2433 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:50:08,354 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1157 Valid, 2433 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:50:08,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6135 states. [2024-12-02 06:50:08,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6135 to 6118. [2024-12-02 06:50:08,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6118 states, 4632 states have (on average 1.400259067357513) internal successors, (6486), 4663 states have internal predecessors, (6486), 1101 states have call successors, (1101), 385 states have call predecessors, (1101), 384 states have return successors, (1096), 1093 states have call predecessors, (1096), 1096 states have call successors, (1096) [2024-12-02 06:50:08,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6118 states to 6118 states and 8683 transitions. [2024-12-02 06:50:08,549 INFO L78 Accepts]: Start accepts. Automaton has 6118 states and 8683 transitions. Word has length 264 [2024-12-02 06:50:08,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:50:08,550 INFO L471 AbstractCegarLoop]: Abstraction has 6118 states and 8683 transitions. [2024-12-02 06:50:08,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-12-02 06:50:08,550 INFO L276 IsEmpty]: Start isEmpty. Operand 6118 states and 8683 transitions. [2024-12-02 06:50:08,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-12-02 06:50:08,553 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:50:08,554 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:50:08,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 06:50:08,554 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:50:08,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:50:08,554 INFO L85 PathProgramCache]: Analyzing trace with hash -2047507099, now seen corresponding path program 1 times [2024-12-02 06:50:08,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:50:08,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246358330] [2024-12-02 06:50:08,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:50:08,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:50:08,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:50:09,172 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2024-12-02 06:50:09,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:50:09,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246358330] [2024-12-02 06:50:09,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246358330] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:50:09,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:50:09,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:50:09,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3363848] [2024-12-02 06:50:09,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:50:09,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:50:09,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:50:09,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:50:09,175 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:50:09,175 INFO L87 Difference]: Start difference. First operand 6118 states and 8683 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 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 06:50:09,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:50:09,348 INFO L93 Difference]: Finished difference Result 6120 states and 8684 transitions. [2024-12-02 06:50:09,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:50:09,349 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 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 262 [2024-12-02 06:50:09,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:50:09,379 INFO L225 Difference]: With dead ends: 6120 [2024-12-02 06:50:09,379 INFO L226 Difference]: Without dead ends: 6117 [2024-12-02 06:50:09,383 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 06:50:09,384 INFO L435 NwaCegarLoop]: 1234 mSDtfsCounter, 1168 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1168 SdHoareTripleChecker+Valid, 1234 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 06:50:09,384 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1168 Valid, 1234 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:50:09,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6117 states. [2024-12-02 06:50:09,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6117 to 6117. [2024-12-02 06:50:09,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6117 states, 4632 states have (on average 1.4000431778929188) internal successors, (6485), 4662 states have internal predecessors, (6485), 1100 states have call successors, (1100), 385 states have call predecessors, (1100), 384 states have return successors, (1096), 1093 states have call predecessors, (1096), 1096 states have call successors, (1096) [2024-12-02 06:50:09,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6117 states to 6117 states and 8681 transitions. [2024-12-02 06:50:09,600 INFO L78 Accepts]: Start accepts. Automaton has 6117 states and 8681 transitions. Word has length 262 [2024-12-02 06:50:09,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:50:09,601 INFO L471 AbstractCegarLoop]: Abstraction has 6117 states and 8681 transitions. [2024-12-02 06:50:09,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 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 06:50:09,601 INFO L276 IsEmpty]: Start isEmpty. Operand 6117 states and 8681 transitions. [2024-12-02 06:50:09,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-12-02 06:50:09,606 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:50:09,606 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:50:09,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 06:50:09,606 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:50:09,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:50:09,607 INFO L85 PathProgramCache]: Analyzing trace with hash 951490624, now seen corresponding path program 1 times [2024-12-02 06:50:09,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:50:09,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649458364] [2024-12-02 06:50:09,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:50:09,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:50:10,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:50:10,185 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2024-12-02 06:50:10,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:50:10,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649458364] [2024-12-02 06:50:10,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649458364] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:50:10,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:50:10,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:50:10,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848515191] [2024-12-02 06:50:10,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:50:10,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:50:10,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:50:10,187 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:50:10,187 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:50:10,188 INFO L87 Difference]: Start difference. First operand 6117 states and 8681 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 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 06:50:10,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:50:10,310 INFO L93 Difference]: Finished difference Result 6119 states and 8682 transitions. [2024-12-02 06:50:10,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:50:10,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 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 263 [2024-12-02 06:50:10,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:50:10,337 INFO L225 Difference]: With dead ends: 6119 [2024-12-02 06:50:10,337 INFO L226 Difference]: Without dead ends: 6116 [2024-12-02 06:50:10,341 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 06:50:10,341 INFO L435 NwaCegarLoop]: 1232 mSDtfsCounter, 1165 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1165 SdHoareTripleChecker+Valid, 1232 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 06:50:10,342 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1165 Valid, 1232 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:50:10,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6116 states. [2024-12-02 06:50:10,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6116 to 6116. [2024-12-02 06:50:10,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6116 states, 4632 states have (on average 1.3998272884283247) internal successors, (6484), 4661 states have internal predecessors, (6484), 1099 states have call successors, (1099), 385 states have call predecessors, (1099), 384 states have return successors, (1096), 1093 states have call predecessors, (1096), 1096 states have call successors, (1096) [2024-12-02 06:50:10,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6116 states to 6116 states and 8679 transitions. [2024-12-02 06:50:10,579 INFO L78 Accepts]: Start accepts. Automaton has 6116 states and 8679 transitions. Word has length 263 [2024-12-02 06:50:10,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:50:10,580 INFO L471 AbstractCegarLoop]: Abstraction has 6116 states and 8679 transitions. [2024-12-02 06:50:10,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 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 06:50:10,580 INFO L276 IsEmpty]: Start isEmpty. Operand 6116 states and 8679 transitions. [2024-12-02 06:50:10,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-12-02 06:50:10,583 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:50:10,583 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:50:10,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 06:50:10,583 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:50:10,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:50:10,584 INFO L85 PathProgramCache]: Analyzing trace with hash -568855608, now seen corresponding path program 1 times [2024-12-02 06:50:10,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:50:10,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019961285] [2024-12-02 06:50:10,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:50:10,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:50:10,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:50:11,107 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2024-12-02 06:50:11,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:50:11,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019961285] [2024-12-02 06:50:11,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019961285] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:50:11,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:50:11,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:50:11,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653896192] [2024-12-02 06:50:11,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:50:11,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:50:11,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:50:11,109 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:50:11,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:50:11,110 INFO L87 Difference]: Start difference. First operand 6116 states and 8679 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 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 06:50:11,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:50:11,453 INFO L93 Difference]: Finished difference Result 13391 states and 19026 transitions. [2024-12-02 06:50:11,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:50:11,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 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 264 [2024-12-02 06:50:11,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:50:11,503 INFO L225 Difference]: With dead ends: 13391 [2024-12-02 06:50:11,503 INFO L226 Difference]: Without dead ends: 7320 [2024-12-02 06:50:11,530 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 06:50:11,531 INFO L435 NwaCegarLoop]: 1236 mSDtfsCounter, 1110 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1110 SdHoareTripleChecker+Valid, 1668 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:50:11,531 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1110 Valid, 1668 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:50:11,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7320 states. [2024-12-02 06:50:11,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7320 to 7290. [2024-12-02 06:50:11,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7290 states, 5497 states have (on average 1.3882117518646535) internal successors, (7631), 5541 states have internal predecessors, (7631), 1298 states have call successors, (1298), 508 states have call predecessors, (1298), 494 states have return successors, (1318), 1276 states have call predecessors, (1318), 1294 states have call successors, (1318) [2024-12-02 06:50:11,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7290 states to 7290 states and 10247 transitions. [2024-12-02 06:50:11,911 INFO L78 Accepts]: Start accepts. Automaton has 7290 states and 10247 transitions. Word has length 264 [2024-12-02 06:50:11,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:50:11,911 INFO L471 AbstractCegarLoop]: Abstraction has 7290 states and 10247 transitions. [2024-12-02 06:50:11,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 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 06:50:11,912 INFO L276 IsEmpty]: Start isEmpty. Operand 7290 states and 10247 transitions. [2024-12-02 06:50:11,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2024-12-02 06:50:11,920 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:50:11,921 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1] [2024-12-02 06:50:11,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 06:50:11,921 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:50:11,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:50:11,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1412541440, now seen corresponding path program 1 times [2024-12-02 06:50:11,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:50:11,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50354545] [2024-12-02 06:50:11,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:50:11,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:50:12,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:50:13,107 INFO L134 CoverageAnalysis]: Checked inductivity of 1032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1032 trivial. 0 not checked. [2024-12-02 06:50:13,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:50:13,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50354545] [2024-12-02 06:50:13,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50354545] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:50:13,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:50:13,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:50:13,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664000586] [2024-12-02 06:50:13,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:50:13,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:50:13,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:50:13,110 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:50:13,110 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:50:13,110 INFO L87 Difference]: Start difference. First operand 7290 states and 10247 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2024-12-02 06:50:13,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:50:13,786 INFO L93 Difference]: Finished difference Result 21586 states and 30287 transitions. [2024-12-02 06:50:13,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:50:13,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 372 [2024-12-02 06:50:13,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:50:13,845 INFO L225 Difference]: With dead ends: 21586 [2024-12-02 06:50:13,845 INFO L226 Difference]: Without dead ends: 14347 [2024-12-02 06:50:13,869 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 06:50:13,870 INFO L435 NwaCegarLoop]: 1323 mSDtfsCounter, 1168 mSDsluCounter, 1131 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1168 SdHoareTripleChecker+Valid, 2454 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:50:13,870 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1168 Valid, 2454 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:50:13,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14347 states. [2024-12-02 06:50:14,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14347 to 14336. [2024-12-02 06:50:14,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14336 states, 10821 states have (on average 1.386285925515202) internal successors, (15001), 10909 states have internal predecessors, (15001), 2526 states have call successors, (2526), 1014 states have call predecessors, (2526), 988 states have return successors, (2570), 2484 states have call predecessors, (2570), 2522 states have call successors, (2570) [2024-12-02 06:50:14,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14336 states to 14336 states and 20097 transitions. [2024-12-02 06:50:14,567 INFO L78 Accepts]: Start accepts. Automaton has 14336 states and 20097 transitions. Word has length 372 [2024-12-02 06:50:14,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:50:14,568 INFO L471 AbstractCegarLoop]: Abstraction has 14336 states and 20097 transitions. [2024-12-02 06:50:14,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2024-12-02 06:50:14,569 INFO L276 IsEmpty]: Start isEmpty. Operand 14336 states and 20097 transitions. [2024-12-02 06:50:14,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2024-12-02 06:50:14,577 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:50:14,577 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1] [2024-12-02 06:50:14,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 06:50:14,578 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:50:14,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:50:14,578 INFO L85 PathProgramCache]: Analyzing trace with hash 179209799, now seen corresponding path program 1 times [2024-12-02 06:50:14,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:50:14,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612083423] [2024-12-02 06:50:14,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:50:14,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:50:15,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:50:15,390 INFO L134 CoverageAnalysis]: Checked inductivity of 1032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1032 trivial. 0 not checked. [2024-12-02 06:50:15,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:50:15,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612083423] [2024-12-02 06:50:15,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612083423] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:50:15,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:50:15,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:50:15,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114315324] [2024-12-02 06:50:15,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:50:15,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:50:15,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:50:15,392 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:50:15,392 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:50:15,393 INFO L87 Difference]: Start difference. First operand 14336 states and 20097 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2024-12-02 06:50:16,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:50:16,261 INFO L93 Difference]: Finished difference Result 39548 states and 55333 transitions. [2024-12-02 06:50:16,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:50:16,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 375 [2024-12-02 06:50:16,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:50:16,351 INFO L225 Difference]: With dead ends: 39548 [2024-12-02 06:50:16,351 INFO L226 Difference]: Without dead ends: 25263 [2024-12-02 06:50:16,386 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 06:50:16,387 INFO L435 NwaCegarLoop]: 2066 mSDtfsCounter, 1137 mSDsluCounter, 1131 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1137 SdHoareTripleChecker+Valid, 3197 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:50:16,387 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1137 Valid, 3197 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:50:16,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25263 states. [2024-12-02 06:50:17,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25263 to 25254. [2024-12-02 06:50:17,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25254 states, 18999 states have (on average 1.3817043002263276) internal successors, (26251), 19159 states have internal predecessors, (26251), 4472 states have call successors, (4472), 1824 states have call predecessors, (4472), 1782 states have return successors, (4564), 4402 states have call predecessors, (4564), 4468 states have call successors, (4564) [2024-12-02 06:50:17,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25254 states to 25254 states and 35287 transitions. [2024-12-02 06:50:17,552 INFO L78 Accepts]: Start accepts. Automaton has 25254 states and 35287 transitions. Word has length 375 [2024-12-02 06:50:17,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:50:17,553 INFO L471 AbstractCegarLoop]: Abstraction has 25254 states and 35287 transitions. [2024-12-02 06:50:17,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2024-12-02 06:50:17,553 INFO L276 IsEmpty]: Start isEmpty. Operand 25254 states and 35287 transitions. [2024-12-02 06:50:17,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-12-02 06:50:17,562 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:50:17,563 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 16, 16, 16, 16, 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] [2024-12-02 06:50:17,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 06:50:17,563 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:50:17,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:50:17,563 INFO L85 PathProgramCache]: Analyzing trace with hash 506070834, now seen corresponding path program 1 times [2024-12-02 06:50:17,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:50:17,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861284867] [2024-12-02 06:50:17,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:50:17,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:50:18,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:50:18,464 INFO L134 CoverageAnalysis]: Checked inductivity of 2745 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2745 trivial. 0 not checked. [2024-12-02 06:50:18,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:50:18,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861284867] [2024-12-02 06:50:18,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861284867] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:50:18,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:50:18,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:50:18,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541560919] [2024-12-02 06:50:18,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:50:18,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:50:18,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:50:18,467 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:50:18,467 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:50:18,467 INFO L87 Difference]: Start difference. First operand 25254 states and 35287 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2024-12-02 06:50:22,489 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 06:50:23,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:50:23,374 INFO L93 Difference]: Finished difference Result 28892 states and 40017 transitions. [2024-12-02 06:50:23,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:50:23,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 457 [2024-12-02 06:50:23,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:50:23,508 INFO L225 Difference]: With dead ends: 28892 [2024-12-02 06:50:23,508 INFO L226 Difference]: Without dead ends: 24372 [2024-12-02 06:50:23,534 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 06:50:23,535 INFO L435 NwaCegarLoop]: 1473 mSDtfsCounter, 426 mSDsluCounter, 1159 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 2632 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:50:23,535 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 2632 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 06:50:23,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24372 states. [2024-12-02 06:50:24,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24372 to 24280. [2024-12-02 06:50:24,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24280 states, 18300 states have (on average 1.3818579234972677) internal successors, (25288), 18459 states have internal predecessors, (25288), 4271 states have call successors, (4271), 1743 states have call predecessors, (4271), 1708 states have return successors, (4234), 4197 states have call predecessors, (4234), 4234 states have call successors, (4234) [2024-12-02 06:50:24,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24280 states to 24280 states and 33793 transitions. [2024-12-02 06:50:24,501 INFO L78 Accepts]: Start accepts. Automaton has 24280 states and 33793 transitions. Word has length 457 [2024-12-02 06:50:24,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:50:24,502 INFO L471 AbstractCegarLoop]: Abstraction has 24280 states and 33793 transitions. [2024-12-02 06:50:24,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2024-12-02 06:50:24,502 INFO L276 IsEmpty]: Start isEmpty. Operand 24280 states and 33793 transitions. [2024-12-02 06:50:24,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2024-12-02 06:50:24,553 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:50:24,553 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 16, 16, 16, 16, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:50:24,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 06:50:24,553 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:50:24,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:50:24,554 INFO L85 PathProgramCache]: Analyzing trace with hash -562688346, now seen corresponding path program 1 times [2024-12-02 06:50:24,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:50:24,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631304758] [2024-12-02 06:50:24,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:50:24,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:50:24,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:50:25,188 INFO L134 CoverageAnalysis]: Checked inductivity of 2789 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2789 trivial. 0 not checked. [2024-12-02 06:50:25,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:50:25,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631304758] [2024-12-02 06:50:25,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631304758] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:50:25,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:50:25,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:50:25,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928542693] [2024-12-02 06:50:25,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:50:25,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:50:25,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:50:25,190 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:50:25,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:50:25,191 INFO L87 Difference]: Start difference. First operand 24280 states and 33793 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2024-12-02 06:50:26,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:50:26,039 INFO L93 Difference]: Finished difference Result 48533 states and 67591 transitions. [2024-12-02 06:50:26,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:50:26,040 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 556 [2024-12-02 06:50:26,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:50:26,172 INFO L225 Difference]: With dead ends: 48533 [2024-12-02 06:50:26,172 INFO L226 Difference]: Without dead ends: 24304 [2024-12-02 06:50:26,245 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 06:50:26,246 INFO L435 NwaCegarLoop]: 1223 mSDtfsCounter, 0 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2441 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:50:26,246 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2441 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:50:26,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24304 states. [2024-12-02 06:50:27,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24304 to 24304. [2024-12-02 06:50:27,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24304 states, 18324 states have (on average 1.3813577821436367) internal successors, (25312), 18483 states have internal predecessors, (25312), 4271 states have call successors, (4271), 1743 states have call predecessors, (4271), 1708 states have return successors, (4234), 4197 states have call predecessors, (4234), 4234 states have call successors, (4234) [2024-12-02 06:50:27,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24304 states to 24304 states and 33817 transitions. [2024-12-02 06:50:27,214 INFO L78 Accepts]: Start accepts. Automaton has 24304 states and 33817 transitions. Word has length 556 [2024-12-02 06:50:27,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:50:27,215 INFO L471 AbstractCegarLoop]: Abstraction has 24304 states and 33817 transitions. [2024-12-02 06:50:27,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2024-12-02 06:50:27,215 INFO L276 IsEmpty]: Start isEmpty. Operand 24304 states and 33817 transitions. [2024-12-02 06:50:27,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 558 [2024-12-02 06:50:27,260 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:50:27,260 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 16, 16, 16, 16, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:50:27,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 06:50:27,261 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:50:27,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:50:27,261 INFO L85 PathProgramCache]: Analyzing trace with hash -947902488, now seen corresponding path program 1 times [2024-12-02 06:50:27,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:50:27,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848521511] [2024-12-02 06:50:27,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:50:27,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:50:27,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:50:28,247 INFO L134 CoverageAnalysis]: Checked inductivity of 2789 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2781 trivial. 0 not checked. [2024-12-02 06:50:28,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:50:28,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848521511] [2024-12-02 06:50:28,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848521511] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:50:28,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307034547] [2024-12-02 06:50:28,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:50:28,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:50:28,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:50:28,250 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:50:28,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 06:50:30,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:50:30,190 INFO L256 TraceCheckSpWp]: Trace formula consists of 4405 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 06:50:30,210 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:50:30,334 INFO L134 CoverageAnalysis]: Checked inductivity of 2789 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 2753 trivial. 0 not checked. [2024-12-02 06:50:30,334 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:50:30,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307034547] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:50:30,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:50:30,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2024-12-02 06:50:30,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807781563] [2024-12-02 06:50:30,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:50:30,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:50:30,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:50:30,336 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:50:30,337 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:50:30,337 INFO L87 Difference]: Start difference. First operand 24304 states and 33817 transitions. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 3 states have call successors, (55), 2 states have call predecessors, (55), 3 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2024-12-02 06:50:31,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:50:31,711 INFO L93 Difference]: Finished difference Result 49317 states and 68967 transitions. [2024-12-02 06:50:31,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:50:31,711 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 3 states have call successors, (55), 2 states have call predecessors, (55), 3 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 557 [2024-12-02 06:50:31,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:50:31,864 INFO L225 Difference]: With dead ends: 49317 [2024-12-02 06:50:31,864 INFO L226 Difference]: Without dead ends: 24304 [2024-12-02 06:50:31,977 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 561 GetRequests, 558 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:50:31,977 INFO L435 NwaCegarLoop]: 1222 mSDtfsCounter, 54 mSDsluCounter, 2401 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 3623 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:50:31,977 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 3623 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:50:32,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24304 states. [2024-12-02 06:50:33,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24304 to 24304. [2024-12-02 06:50:33,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24304 states, 18324 states have (on average 1.3791748526522594) internal successors, (25272), 18483 states have internal predecessors, (25272), 4271 states have call successors, (4271), 1743 states have call predecessors, (4271), 1708 states have return successors, (4234), 4197 states have call predecessors, (4234), 4234 states have call successors, (4234) [2024-12-02 06:50:33,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24304 states to 24304 states and 33777 transitions. [2024-12-02 06:50:33,332 INFO L78 Accepts]: Start accepts. Automaton has 24304 states and 33777 transitions. Word has length 557 [2024-12-02 06:50:33,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:50:33,333 INFO L471 AbstractCegarLoop]: Abstraction has 24304 states and 33777 transitions. [2024-12-02 06:50:33,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 3 states have call successors, (55), 2 states have call predecessors, (55), 3 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2024-12-02 06:50:33,333 INFO L276 IsEmpty]: Start isEmpty. Operand 24304 states and 33777 transitions. [2024-12-02 06:50:33,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 560 [2024-12-02 06:50:33,390 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:50:33,391 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 16, 16, 16, 16, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:50:33,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 06:50:33,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:50:33,591 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:50:33,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:50:33,592 INFO L85 PathProgramCache]: Analyzing trace with hash -332532442, now seen corresponding path program 1 times [2024-12-02 06:50:33,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:50:33,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699607939] [2024-12-02 06:50:33,592 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:50:33,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:50:34,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:50:35,148 INFO L134 CoverageAnalysis]: Checked inductivity of 2790 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2790 trivial. 0 not checked. [2024-12-02 06:50:35,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:50:35,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699607939] [2024-12-02 06:50:35,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699607939] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:50:35,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:50:35,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:50:35,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191034548] [2024-12-02 06:50:35,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:50:35,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:50:35,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:50:35,150 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:50:35,150 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:50:35,150 INFO L87 Difference]: Start difference. First operand 24304 states and 33777 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2024-12-02 06:50:35,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:50:35,873 INFO L93 Difference]: Finished difference Result 48605 states and 67583 transitions. [2024-12-02 06:50:35,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:50:35,874 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 559 [2024-12-02 06:50:35,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:50:35,979 INFO L225 Difference]: With dead ends: 48605 [2024-12-02 06:50:35,979 INFO L226 Difference]: Without dead ends: 24352 [2024-12-02 06:50:36,037 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:50:36,038 INFO L435 NwaCegarLoop]: 1221 mSDtfsCounter, 0 mSDsluCounter, 2434 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3655 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:50:36,038 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3655 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:50:36,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24352 states. [2024-12-02 06:50:36,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24352 to 24328. [2024-12-02 06:50:36,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24328 states, 18348 states have (on average 1.3786788750817527) internal successors, (25296), 18507 states have internal predecessors, (25296), 4271 states have call successors, (4271), 1743 states have call predecessors, (4271), 1708 states have return successors, (4234), 4197 states have call predecessors, (4234), 4234 states have call successors, (4234) [2024-12-02 06:50:36,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24328 states to 24328 states and 33801 transitions. [2024-12-02 06:50:36,718 INFO L78 Accepts]: Start accepts. Automaton has 24328 states and 33801 transitions. Word has length 559 [2024-12-02 06:50:36,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:50:36,719 INFO L471 AbstractCegarLoop]: Abstraction has 24328 states and 33801 transitions. [2024-12-02 06:50:36,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2024-12-02 06:50:36,719 INFO L276 IsEmpty]: Start isEmpty. Operand 24328 states and 33801 transitions. [2024-12-02 06:50:36,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 561 [2024-12-02 06:50:36,770 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:50:36,770 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 16, 16, 16, 16, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:50:36,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 06:50:36,770 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:50:36,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:50:36,771 INFO L85 PathProgramCache]: Analyzing trace with hash 243485093, now seen corresponding path program 1 times [2024-12-02 06:50:36,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:50:36,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381050777] [2024-12-02 06:50:36,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:50:36,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:50:37,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:50:39,210 INFO L134 CoverageAnalysis]: Checked inductivity of 2790 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 2769 trivial. 0 not checked. [2024-12-02 06:50:39,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:50:39,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381050777] [2024-12-02 06:50:39,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381050777] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:50:39,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1443872341] [2024-12-02 06:50:39,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:50:39,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:50:39,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:50:39,213 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:50:39,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 06:50:41,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:50:41,201 INFO L256 TraceCheckSpWp]: Trace formula consists of 4408 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-12-02 06:50:41,216 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:50:41,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2024-12-02 06:50:41,959 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2024-12-02 06:50:42,088 WARN L873 $PredicateComparison]: unable to prove that (exists ((|#Ultimate.meminit_#ptr.base| Int)) (= |c_#memory_int#7| (store |c_old(#memory_int#7)| |#Ultimate.meminit_#ptr.base| ((as const (Array Int Int)) 0)))) is different from true [2024-12-02 06:50:42,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2024-12-02 06:50:42,461 INFO L349 Elim1Store]: treesize reduction 16, result has 23.8 percent of original size [2024-12-02 06:50:42,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 16 [2024-12-02 06:50:42,881 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2024-12-02 06:50:43,002 INFO L134 CoverageAnalysis]: Checked inductivity of 2790 backedges. 410 proven. 3 refuted. 0 times theorem prover too weak. 2373 trivial. 4 not checked. [2024-12-02 06:50:43,002 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:50:44,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1443872341] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:50:44,872 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 06:50:44,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 15] total 23 [2024-12-02 06:50:44,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24381717] [2024-12-02 06:50:44,872 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 06:50:44,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-12-02 06:50:44,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:50:44,874 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-12-02 06:50:44,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=573, Unknown=17, NotChecked=48, Total=702 [2024-12-02 06:50:44,875 INFO L87 Difference]: Start difference. First operand 24328 states and 33801 transitions. Second operand has 23 states, 23 states have (on average 10.0) internal successors, (230), 17 states have internal predecessors, (230), 6 states have call successors, (67), 5 states have call predecessors, (67), 10 states have return successors, (64), 11 states have call predecessors, (64), 6 states have call successors, (64) [2024-12-02 06:50:48,899 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 06:51:32,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:51:32,283 INFO L93 Difference]: Finished difference Result 82313 states and 117407 transitions. [2024-12-02 06:51:32,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-12-02 06:51:32,284 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 10.0) internal successors, (230), 17 states have internal predecessors, (230), 6 states have call successors, (67), 5 states have call predecessors, (67), 10 states have return successors, (64), 11 states have call predecessors, (64), 6 states have call successors, (64) Word has length 560 [2024-12-02 06:51:32,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:51:32,449 INFO L225 Difference]: With dead ends: 82313 [2024-12-02 06:51:32,450 INFO L226 Difference]: Without dead ends: 58036 [2024-12-02 06:51:32,525 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 753 GetRequests, 687 SyntacticMatches, 4 SemanticMatches, 62 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 734 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=363, Invalid=3530, Unknown=17, NotChecked=122, Total=4032 [2024-12-02 06:51:32,526 INFO L435 NwaCegarLoop]: 1212 mSDtfsCounter, 2383 mSDsluCounter, 20521 mSDsCounter, 0 mSdLazyCounter, 10462 mSolverCounterSat, 792 mSolverCounterUnsat, 714 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2503 SdHoareTripleChecker+Valid, 21733 SdHoareTripleChecker+Invalid, 15085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 792 IncrementalHoareTripleChecker+Valid, 10462 IncrementalHoareTripleChecker+Invalid, 714 IncrementalHoareTripleChecker+Unknown, 3117 IncrementalHoareTripleChecker+Unchecked, 41.7s IncrementalHoareTripleChecker+Time [2024-12-02 06:51:32,526 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2503 Valid, 21733 Invalid, 15085 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [792 Valid, 10462 Invalid, 714 Unknown, 3117 Unchecked, 41.7s Time] [2024-12-02 06:51:32,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58036 states. [2024-12-02 06:51:34,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58036 to 54440. [2024-12-02 06:51:34,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54440 states, 41430 states have (on average 1.3814385710837558) internal successors, (57233), 41825 states have internal predecessors, (57233), 8769 states have call successors, (8769), 3683 states have call predecessors, (8769), 4240 states have return successors, (11132), 9051 states have call predecessors, (11132), 8732 states have call successors, (11132) [2024-12-02 06:51:34,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54440 states to 54440 states and 77134 transitions. [2024-12-02 06:51:34,636 INFO L78 Accepts]: Start accepts. Automaton has 54440 states and 77134 transitions. Word has length 560 [2024-12-02 06:51:34,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:51:34,636 INFO L471 AbstractCegarLoop]: Abstraction has 54440 states and 77134 transitions. [2024-12-02 06:51:34,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 10.0) internal successors, (230), 17 states have internal predecessors, (230), 6 states have call successors, (67), 5 states have call predecessors, (67), 10 states have return successors, (64), 11 states have call predecessors, (64), 6 states have call successors, (64) [2024-12-02 06:51:34,637 INFO L276 IsEmpty]: Start isEmpty. Operand 54440 states and 77134 transitions. [2024-12-02 06:51:34,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 569 [2024-12-02 06:51:34,728 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:51:34,728 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 16, 16, 16, 16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:51:34,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-12-02 06:51:34,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-12-02 06:51:34,928 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:51:34,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:51:34,929 INFO L85 PathProgramCache]: Analyzing trace with hash -288216019, now seen corresponding path program 1 times [2024-12-02 06:51:34,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:51:34,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819334661] [2024-12-02 06:51:34,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:51:34,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:51:35,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:51:36,212 INFO L134 CoverageAnalysis]: Checked inductivity of 2785 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2783 trivial. 0 not checked. [2024-12-02 06:51:36,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:51:36,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819334661] [2024-12-02 06:51:36,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819334661] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:51:36,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:51:36,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 06:51:36,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832272026] [2024-12-02 06:51:36,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:51:36,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 06:51:36,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:51:36,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 06:51:36,214 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:51:36,214 INFO L87 Difference]: Start difference. First operand 54440 states and 77134 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 4 states have call successors, (55), 5 states have call predecessors, (55), 1 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) [2024-12-02 06:51:38,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:51:38,168 INFO L93 Difference]: Finished difference Result 112446 states and 160130 transitions. [2024-12-02 06:51:38,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 06:51:38,168 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 4 states have call successors, (55), 5 states have call predecessors, (55), 1 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) Word has length 568 [2024-12-02 06:51:38,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:51:38,322 INFO L225 Difference]: With dead ends: 112446 [2024-12-02 06:51:38,322 INFO L226 Difference]: Without dead ends: 58057 [2024-12-02 06:51:38,413 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:51:38,414 INFO L435 NwaCegarLoop]: 1309 mSDtfsCounter, 136 mSDsluCounter, 6425 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 7734 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:51:38,414 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 7734 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:51:38,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58057 states. [2024-12-02 06:51:40,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58057 to 57520. [2024-12-02 06:51:40,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57520 states, 43622 states have (on average 1.3806107010224198) internal successors, (60225), 44057 states have internal predecessors, (60225), 9553 states have call successors, (9553), 3787 states have call predecessors, (9553), 4344 states have return successors, (11972), 9835 states have call predecessors, (11972), 9516 states have call successors, (11972) [2024-12-02 06:51:40,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57520 states to 57520 states and 81750 transitions. [2024-12-02 06:51:40,423 INFO L78 Accepts]: Start accepts. Automaton has 57520 states and 81750 transitions. Word has length 568 [2024-12-02 06:51:40,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:51:40,423 INFO L471 AbstractCegarLoop]: Abstraction has 57520 states and 81750 transitions. [2024-12-02 06:51:40,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 4 states have call successors, (55), 5 states have call predecessors, (55), 1 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) [2024-12-02 06:51:40,423 INFO L276 IsEmpty]: Start isEmpty. Operand 57520 states and 81750 transitions. [2024-12-02 06:51:40,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 582 [2024-12-02 06:51:40,492 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:51:40,492 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 16, 16, 16, 16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:51:40,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 06:51:40,492 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:51:40,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:51:40,493 INFO L85 PathProgramCache]: Analyzing trace with hash 717427847, now seen corresponding path program 1 times [2024-12-02 06:51:40,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:51:40,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609091297] [2024-12-02 06:51:40,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:51:40,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:51:41,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:51:42,308 INFO L134 CoverageAnalysis]: Checked inductivity of 2935 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2933 trivial. 0 not checked. [2024-12-02 06:51:42,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:51:42,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609091297] [2024-12-02 06:51:42,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609091297] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:51:42,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:51:42,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 06:51:42,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622930201] [2024-12-02 06:51:42,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:51:42,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 06:51:42,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:51:42,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 06:51:42,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:51:42,310 INFO L87 Difference]: Start difference. First operand 57520 states and 81750 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 4 states have call successors, (56), 5 states have call predecessors, (56), 1 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) [2024-12-02 06:51:45,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:51:45,317 INFO L93 Difference]: Finished difference Result 115711 states and 165019 transitions. [2024-12-02 06:51:45,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 06:51:45,318 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 4 states have call successors, (56), 5 states have call predecessors, (56), 1 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) Word has length 581 [2024-12-02 06:51:45,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:51:45,488 INFO L225 Difference]: With dead ends: 115711 [2024-12-02 06:51:45,488 INFO L226 Difference]: Without dead ends: 58242 [2024-12-02 06:51:45,608 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-12-02 06:51:45,608 INFO L435 NwaCegarLoop]: 1302 mSDtfsCounter, 135 mSDsluCounter, 6393 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 7695 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:51:45,609 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 7695 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 06:51:45,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58242 states. [2024-12-02 06:51:47,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58242 to 58161. [2024-12-02 06:51:47,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58161 states, 44114 states have (on average 1.380174094391803) internal successors, (60885), 44525 states have internal predecessors, (60885), 9702 states have call successors, (9702), 3754 states have call predecessors, (9702), 4344 states have return successors, (12180), 10049 states have call predecessors, (12180), 9700 states have call successors, (12180) [2024-12-02 06:51:47,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58161 states to 58161 states and 82767 transitions. [2024-12-02 06:51:47,572 INFO L78 Accepts]: Start accepts. Automaton has 58161 states and 82767 transitions. Word has length 581 [2024-12-02 06:51:47,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:51:47,573 INFO L471 AbstractCegarLoop]: Abstraction has 58161 states and 82767 transitions. [2024-12-02 06:51:47,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 5 states have internal predecessors, (148), 4 states have call successors, (56), 5 states have call predecessors, (56), 1 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) [2024-12-02 06:51:47,573 INFO L276 IsEmpty]: Start isEmpty. Operand 58161 states and 82767 transitions. [2024-12-02 06:51:47,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 600 [2024-12-02 06:51:47,708 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:51:47,708 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 16, 16, 16, 16, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:51:47,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 06:51:47,708 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:51:47,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:51:47,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1676067133, now seen corresponding path program 1 times [2024-12-02 06:51:47,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:51:47,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697618141] [2024-12-02 06:51:47,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:51:47,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:51:48,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:51:48,432 INFO L134 CoverageAnalysis]: Checked inductivity of 2829 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2829 trivial. 0 not checked. [2024-12-02 06:51:48,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:51:48,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697618141] [2024-12-02 06:51:48,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697618141] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:51:48,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:51:48,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:51:48,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490308442] [2024-12-02 06:51:48,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:51:48,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:51:48,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:51:48,434 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:51:48,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:51:48,434 INFO L87 Difference]: Start difference. First operand 58161 states and 82767 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 2 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-12-02 06:51:50,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:51:50,181 INFO L93 Difference]: Finished difference Result 116295 states and 165603 transitions. [2024-12-02 06:51:50,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:51:50,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 2 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 599 [2024-12-02 06:51:50,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:51:50,375 INFO L225 Difference]: With dead ends: 116295 [2024-12-02 06:51:50,375 INFO L226 Difference]: Without dead ends: 58185 [2024-12-02 06:51:50,487 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 06:51:50,488 INFO L435 NwaCegarLoop]: 1220 mSDtfsCounter, 0 mSDsluCounter, 1215 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2435 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:51:50,488 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2435 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:51:50,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58185 states. [2024-12-02 06:51:53,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58185 to 58185. [2024-12-02 06:51:53,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58185 states, 44138 states have (on average 1.3799673750509764) internal successors, (60909), 44549 states have internal predecessors, (60909), 9702 states have call successors, (9702), 3754 states have call predecessors, (9702), 4344 states have return successors, (12180), 10049 states have call predecessors, (12180), 9700 states have call successors, (12180) [2024-12-02 06:51:53,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58185 states to 58185 states and 82791 transitions. [2024-12-02 06:51:53,390 INFO L78 Accepts]: Start accepts. Automaton has 58185 states and 82791 transitions. Word has length 599 [2024-12-02 06:51:53,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:51:53,390 INFO L471 AbstractCegarLoop]: Abstraction has 58185 states and 82791 transitions. [2024-12-02 06:51:53,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 2 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-12-02 06:51:53,390 INFO L276 IsEmpty]: Start isEmpty. Operand 58185 states and 82791 transitions. [2024-12-02 06:51:53,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 610 [2024-12-02 06:51:53,498 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:51:53,498 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 16, 16, 16, 16, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:51:53,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 06:51:53,499 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:51:53,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:51:53,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1318224325, now seen corresponding path program 1 times [2024-12-02 06:51:53,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:51:53,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255318199] [2024-12-02 06:51:53,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:51:53,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:51:53,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:51:55,870 INFO L134 CoverageAnalysis]: Checked inductivity of 2992 backedges. 16 proven. 20 refuted. 0 times theorem prover too weak. 2956 trivial. 0 not checked. [2024-12-02 06:51:55,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:51:55,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255318199] [2024-12-02 06:51:55,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255318199] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:51:55,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254152376] [2024-12-02 06:51:55,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:51:55,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:51:55,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:51:55,872 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:51:55,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 06:51:57,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:51:57,715 INFO L256 TraceCheckSpWp]: Trace formula consists of 4673 conjuncts, 68 conjuncts are in the unsatisfiable core [2024-12-02 06:51:57,725 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:51:59,455 INFO L134 CoverageAnalysis]: Checked inductivity of 2992 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 2893 trivial. 0 not checked. [2024-12-02 06:51:59,455 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:51:59,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1254152376] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:51:59,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:51:59,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [10] total 25 [2024-12-02 06:51:59,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908194099] [2024-12-02 06:51:59,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:51:59,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 06:51:59,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:51:59,456 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 06:51:59,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=552, Unknown=0, NotChecked=0, Total=600 [2024-12-02 06:51:59,457 INFO L87 Difference]: Start difference. First operand 58185 states and 82791 transitions. Second operand has 17 states, 16 states have (on average 11.0) internal successors, (176), 12 states have internal predecessors, (176), 3 states have call successors, (55), 2 states have call predecessors, (55), 7 states have return successors, (53), 7 states have call predecessors, (53), 3 states have call successors, (53) [2024-12-02 06:52:01,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:01,999 INFO L93 Difference]: Finished difference Result 117303 states and 168019 transitions. [2024-12-02 06:52:01,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 06:52:01,999 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 11.0) internal successors, (176), 12 states have internal predecessors, (176), 3 states have call successors, (55), 2 states have call predecessors, (55), 7 states have return successors, (53), 7 states have call predecessors, (53), 3 states have call successors, (53) Word has length 609 [2024-12-02 06:52:02,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:02,215 INFO L225 Difference]: With dead ends: 117303 [2024-12-02 06:52:02,215 INFO L226 Difference]: Without dead ends: 59169 [2024-12-02 06:52:02,349 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 618 GetRequests, 595 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=48, Invalid=552, Unknown=0, NotChecked=0, Total=600 [2024-12-02 06:52:02,350 INFO L435 NwaCegarLoop]: 1244 mSDtfsCounter, 12 mSDsluCounter, 18606 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 19850 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:02,350 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 19850 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 06:52:02,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59169 states. [2024-12-02 06:52:04,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59169 to 58217. [2024-12-02 06:52:04,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58217 states, 44154 states have (on average 1.3778366625900258) internal successors, (60837), 44589 states have internal predecessors, (60837), 9702 states have call successors, (9702), 3754 states have call predecessors, (9702), 4360 states have return successors, (12196), 10041 states have call predecessors, (12196), 9700 states have call successors, (12196) [2024-12-02 06:52:04,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58217 states to 58217 states and 82735 transitions. [2024-12-02 06:52:04,598 INFO L78 Accepts]: Start accepts. Automaton has 58217 states and 82735 transitions. Word has length 609 [2024-12-02 06:52:04,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:04,598 INFO L471 AbstractCegarLoop]: Abstraction has 58217 states and 82735 transitions. [2024-12-02 06:52:04,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 11.0) internal successors, (176), 12 states have internal predecessors, (176), 3 states have call successors, (55), 2 states have call predecessors, (55), 7 states have return successors, (53), 7 states have call predecessors, (53), 3 states have call successors, (53) [2024-12-02 06:52:04,598 INFO L276 IsEmpty]: Start isEmpty. Operand 58217 states and 82735 transitions. [2024-12-02 06:52:04,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 603 [2024-12-02 06:52:04,683 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:04,683 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 16, 16, 16, 16, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:52:04,697 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 06:52:04,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-12-02 06:52:04,884 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:04,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:04,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1542306825, now seen corresponding path program 1 times [2024-12-02 06:52:04,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:04,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360971885] [2024-12-02 06:52:04,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:04,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:05,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:06,990 INFO L134 CoverageAnalysis]: Checked inductivity of 2830 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 2810 trivial. 0 not checked. [2024-12-02 06:52:06,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:06,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360971885] [2024-12-02 06:52:06,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360971885] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:52:06,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218474395] [2024-12-02 06:52:06,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:06,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:52:06,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:52:06,992 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:52:06,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 06:52:08,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:08,864 INFO L256 TraceCheckSpWp]: Trace formula consists of 4575 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 06:52:08,871 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:52:09,013 INFO L134 CoverageAnalysis]: Checked inductivity of 2830 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 2794 trivial. 0 not checked. [2024-12-02 06:52:09,013 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:52:09,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218474395] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:09,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:52:09,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-12-02 06:52:09,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986170910] [2024-12-02 06:52:09,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:09,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:52:09,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:09,015 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:52:09,015 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-12-02 06:52:09,015 INFO L87 Difference]: Start difference. First operand 58217 states and 82735 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2024-12-02 06:52:11,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:11,659 INFO L93 Difference]: Finished difference Result 116431 states and 165587 transitions. [2024-12-02 06:52:11,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:52:11,659 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 602 [2024-12-02 06:52:11,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:11,933 INFO L225 Difference]: With dead ends: 116431 [2024-12-02 06:52:11,933 INFO L226 Difference]: Without dead ends: 58265 [2024-12-02 06:52:12,089 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 611 GetRequests, 601 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-12-02 06:52:12,089 INFO L435 NwaCegarLoop]: 1219 mSDtfsCounter, 0 mSDsluCounter, 2426 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3645 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:12,089 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3645 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:52:12,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58265 states. [2024-12-02 06:52:14,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58265 to 58265. [2024-12-02 06:52:14,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58265 states, 44202 states have (on average 1.3774263607981538) internal successors, (60885), 44637 states have internal predecessors, (60885), 9702 states have call successors, (9702), 3754 states have call predecessors, (9702), 4360 states have return successors, (12196), 10041 states have call predecessors, (12196), 9700 states have call successors, (12196) [2024-12-02 06:52:14,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58265 states to 58265 states and 82783 transitions. [2024-12-02 06:52:14,478 INFO L78 Accepts]: Start accepts. Automaton has 58265 states and 82783 transitions. Word has length 602 [2024-12-02 06:52:14,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:14,478 INFO L471 AbstractCegarLoop]: Abstraction has 58265 states and 82783 transitions. [2024-12-02 06:52:14,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2024-12-02 06:52:14,479 INFO L276 IsEmpty]: Start isEmpty. Operand 58265 states and 82783 transitions. [2024-12-02 06:52:14,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 602 [2024-12-02 06:52:14,565 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:14,565 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 16, 16, 16, 16, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:52:14,582 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 06:52:14,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:52:14,765 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:14,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:14,766 INFO L85 PathProgramCache]: Analyzing trace with hash 149209489, now seen corresponding path program 1 times [2024-12-02 06:52:14,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:14,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028696099] [2024-12-02 06:52:14,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:14,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:15,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:17,076 INFO L134 CoverageAnalysis]: Checked inductivity of 2829 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 2809 trivial. 0 not checked. [2024-12-02 06:52:17,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:17,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028696099] [2024-12-02 06:52:17,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028696099] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:52:17,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067232846] [2024-12-02 06:52:17,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:17,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:52:17,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:52:17,078 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:52:17,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 06:52:19,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:19,031 INFO L256 TraceCheckSpWp]: Trace formula consists of 4572 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 06:52:19,037 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:52:19,195 INFO L134 CoverageAnalysis]: Checked inductivity of 2829 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 2793 trivial. 0 not checked. [2024-12-02 06:52:19,195 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:52:19,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067232846] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:19,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:52:19,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-12-02 06:52:19,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147995601] [2024-12-02 06:52:19,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:19,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:52:19,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:19,196 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:52:19,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-12-02 06:52:19,197 INFO L87 Difference]: Start difference. First operand 58265 states and 82783 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2024-12-02 06:52:20,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:20,901 INFO L93 Difference]: Finished difference Result 117199 states and 167251 transitions. [2024-12-02 06:52:20,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:52:20,902 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 601 [2024-12-02 06:52:20,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:21,133 INFO L225 Difference]: With dead ends: 117199 [2024-12-02 06:52:21,133 INFO L226 Difference]: Without dead ends: 58985 [2024-12-02 06:52:21,286 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 610 GetRequests, 600 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-12-02 06:52:21,286 INFO L435 NwaCegarLoop]: 1219 mSDtfsCounter, 5 mSDsluCounter, 2420 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3639 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:21,286 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3639 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:52:21,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58985 states. [2024-12-02 06:52:23,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58985 to 58505. [2024-12-02 06:52:23,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58505 states, 44442 states have (on average 1.3780882948562172) internal successors, (61245), 44877 states have internal predecessors, (61245), 9702 states have call successors, (9702), 3754 states have call predecessors, (9702), 4360 states have return successors, (12196), 10041 states have call predecessors, (12196), 9700 states have call successors, (12196) [2024-12-02 06:52:23,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58505 states to 58505 states and 83143 transitions. [2024-12-02 06:52:23,542 INFO L78 Accepts]: Start accepts. Automaton has 58505 states and 83143 transitions. Word has length 601 [2024-12-02 06:52:23,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:23,542 INFO L471 AbstractCegarLoop]: Abstraction has 58505 states and 83143 transitions. [2024-12-02 06:52:23,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2024-12-02 06:52:23,543 INFO L276 IsEmpty]: Start isEmpty. Operand 58505 states and 83143 transitions. [2024-12-02 06:52:23,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 603 [2024-12-02 06:52:23,633 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:23,633 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 16, 16, 16, 16, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:52:23,650 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 06:52:23,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:52:23,833 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:23,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:23,834 INFO L85 PathProgramCache]: Analyzing trace with hash 611984417, now seen corresponding path program 1 times [2024-12-02 06:52:23,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:23,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443810787] [2024-12-02 06:52:23,834 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:23,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:24,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:25,847 INFO L134 CoverageAnalysis]: Checked inductivity of 2830 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 2810 trivial. 0 not checked. [2024-12-02 06:52:25,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:25,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443810787] [2024-12-02 06:52:25,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443810787] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:52:25,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [687442636] [2024-12-02 06:52:25,848 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:25,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:52:25,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:52:25,849 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:52:25,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 06:52:27,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:27,819 INFO L256 TraceCheckSpWp]: Trace formula consists of 4575 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 06:52:27,828 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:52:28,003 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 06:52:28,084 INFO L134 CoverageAnalysis]: Checked inductivity of 2830 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 2794 trivial. 0 not checked. [2024-12-02 06:52:28,084 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:52:28,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [687442636] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:28,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:52:28,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2024-12-02 06:52:28,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603623400] [2024-12-02 06:52:28,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:28,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:52:28,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:28,086 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:52:28,086 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-12-02 06:52:28,086 INFO L87 Difference]: Start difference. First operand 58505 states and 83143 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2024-12-02 06:52:30,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:30,580 INFO L93 Difference]: Finished difference Result 117175 states and 166595 transitions. [2024-12-02 06:52:30,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:52:30,580 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 602 [2024-12-02 06:52:30,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:30,802 INFO L225 Difference]: With dead ends: 117175 [2024-12-02 06:52:30,802 INFO L226 Difference]: Without dead ends: 58721 [2024-12-02 06:52:30,920 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 612 GetRequests, 600 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2024-12-02 06:52:30,921 INFO L435 NwaCegarLoop]: 1221 mSDtfsCounter, 10 mSDsluCounter, 3488 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 4709 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:30,921 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 4709 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 06:52:30,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58721 states. [2024-12-02 06:52:32,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58721 to 58553. [2024-12-02 06:52:32,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58553 states, 44490 states have (on average 1.3776803776129467) internal successors, (61293), 44925 states have internal predecessors, (61293), 9702 states have call successors, (9702), 3754 states have call predecessors, (9702), 4360 states have return successors, (12196), 10041 states have call predecessors, (12196), 9700 states have call successors, (12196) [2024-12-02 06:52:33,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58553 states to 58553 states and 83191 transitions. [2024-12-02 06:52:33,102 INFO L78 Accepts]: Start accepts. Automaton has 58553 states and 83191 transitions. Word has length 602 [2024-12-02 06:52:33,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:33,103 INFO L471 AbstractCegarLoop]: Abstraction has 58553 states and 83191 transitions. [2024-12-02 06:52:33,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2024-12-02 06:52:33,103 INFO L276 IsEmpty]: Start isEmpty. Operand 58553 states and 83191 transitions. [2024-12-02 06:52:33,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 604 [2024-12-02 06:52:33,200 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:33,200 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 16, 16, 16, 16, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:52:33,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 06:52:33,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:52:33,401 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:33,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:33,401 INFO L85 PathProgramCache]: Analyzing trace with hash -237763334, now seen corresponding path program 1 times [2024-12-02 06:52:33,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:33,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786977045] [2024-12-02 06:52:33,401 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:33,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:33,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:36,057 INFO L134 CoverageAnalysis]: Checked inductivity of 2830 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 2810 trivial. 0 not checked. [2024-12-02 06:52:36,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:36,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786977045] [2024-12-02 06:52:36,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786977045] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:52:36,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756283088] [2024-12-02 06:52:36,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:36,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:52:36,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:52:36,060 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:52:36,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 06:52:38,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:38,462 INFO L256 TraceCheckSpWp]: Trace formula consists of 4576 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 06:52:38,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:52:38,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 06:52:38,720 INFO L134 CoverageAnalysis]: Checked inductivity of 2830 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 2794 trivial. 0 not checked. [2024-12-02 06:52:38,720 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:52:38,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [756283088] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:38,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:52:38,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2024-12-02 06:52:38,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488207374] [2024-12-02 06:52:38,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:38,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:52:38,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:38,722 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:52:38,722 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-12-02 06:52:38,722 INFO L87 Difference]: Start difference. First operand 58553 states and 83191 transitions. Second operand has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2024-12-02 06:52:41,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:41,206 INFO L93 Difference]: Finished difference Result 117511 states and 167123 transitions. [2024-12-02 06:52:41,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:52:41,207 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 603 [2024-12-02 06:52:41,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:41,470 INFO L225 Difference]: With dead ends: 117511 [2024-12-02 06:52:41,470 INFO L226 Difference]: Without dead ends: 59009 [2024-12-02 06:52:41,596 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 613 GetRequests, 601 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2024-12-02 06:52:41,598 INFO L435 NwaCegarLoop]: 1218 mSDtfsCounter, 17 mSDsluCounter, 3475 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 4693 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:41,598 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 4693 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 06:52:41,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59009 states. [2024-12-02 06:52:43,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59009 to 58649. [2024-12-02 06:52:43,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58649 states, 44586 states have (on average 1.377405463598439) internal successors, (61413), 45021 states have internal predecessors, (61413), 9702 states have call successors, (9702), 3754 states have call predecessors, (9702), 4360 states have return successors, (12196), 10041 states have call predecessors, (12196), 9700 states have call successors, (12196) [2024-12-02 06:52:43,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58649 states to 58649 states and 83311 transitions. [2024-12-02 06:52:43,667 INFO L78 Accepts]: Start accepts. Automaton has 58649 states and 83311 transitions. Word has length 603 [2024-12-02 06:52:43,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:43,668 INFO L471 AbstractCegarLoop]: Abstraction has 58649 states and 83311 transitions. [2024-12-02 06:52:43,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2024-12-02 06:52:43,668 INFO L276 IsEmpty]: Start isEmpty. Operand 58649 states and 83311 transitions. [2024-12-02 06:52:43,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 606 [2024-12-02 06:52:43,763 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:43,763 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 16, 16, 16, 16, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:52:43,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 06:52:43,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:52:43,963 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:43,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:43,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1697406951, now seen corresponding path program 1 times [2024-12-02 06:52:43,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:43,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102959810] [2024-12-02 06:52:43,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:43,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:44,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:46,515 INFO L134 CoverageAnalysis]: Checked inductivity of 2829 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 2809 trivial. 0 not checked. [2024-12-02 06:52:46,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:46,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102959810] [2024-12-02 06:52:46,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102959810] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:52:46,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139800153] [2024-12-02 06:52:46,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:46,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:52:46,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:52:46,517 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:52:46,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 06:52:48,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:48,937 INFO L256 TraceCheckSpWp]: Trace formula consists of 4578 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-02 06:52:48,946 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:52:48,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-12-02 06:52:49,355 INFO L134 CoverageAnalysis]: Checked inductivity of 2829 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 2793 trivial. 0 not checked. [2024-12-02 06:52:49,355 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:52:49,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139800153] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:49,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:52:49,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2024-12-02 06:52:49,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205343612] [2024-12-02 06:52:49,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:49,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 06:52:49,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:49,357 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 06:52:49,357 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-12-02 06:52:49,357 INFO L87 Difference]: Start difference. First operand 58649 states and 83311 transitions. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2024-12-02 06:52:51,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:52:51,980 INFO L93 Difference]: Finished difference Result 116375 states and 165731 transitions. [2024-12-02 06:52:51,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 06:52:51,981 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 605 [2024-12-02 06:52:51,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:52:52,296 INFO L225 Difference]: With dead ends: 116375 [2024-12-02 06:52:52,297 INFO L226 Difference]: Without dead ends: 57777 [2024-12-02 06:52:52,461 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 615 GetRequests, 602 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-12-02 06:52:52,462 INFO L435 NwaCegarLoop]: 1213 mSDtfsCounter, 15 mSDsluCounter, 3614 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 4827 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:52:52,462 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 4827 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:52:52,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57777 states. [2024-12-02 06:52:54,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57777 to 57049. [2024-12-02 06:52:54,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57049 states, 43354 states have (on average 1.3689394288877612) internal successors, (59349), 43765 states have internal predecessors, (59349), 9382 states have call successors, (9382), 3730 states have call predecessors, (9382), 4312 states have return successors, (11564), 9721 states have call predecessors, (11564), 9380 states have call successors, (11564) [2024-12-02 06:52:54,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57049 states to 57049 states and 80295 transitions. [2024-12-02 06:52:54,754 INFO L78 Accepts]: Start accepts. Automaton has 57049 states and 80295 transitions. Word has length 605 [2024-12-02 06:52:54,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:52:54,755 INFO L471 AbstractCegarLoop]: Abstraction has 57049 states and 80295 transitions. [2024-12-02 06:52:54,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2024-12-02 06:52:54,755 INFO L276 IsEmpty]: Start isEmpty. Operand 57049 states and 80295 transitions. [2024-12-02 06:52:54,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 605 [2024-12-02 06:52:54,835 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:52:54,835 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 16, 16, 16, 16, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:52:54,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-02 06:52:55,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-12-02 06:52:55,036 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:52:55,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:52:55,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1263866935, now seen corresponding path program 1 times [2024-12-02 06:52:55,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:52:55,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233504329] [2024-12-02 06:52:55,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:55,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:52:55,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:57,073 INFO L134 CoverageAnalysis]: Checked inductivity of 2830 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 2810 trivial. 0 not checked. [2024-12-02 06:52:57,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:52:57,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233504329] [2024-12-02 06:52:57,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233504329] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:52:57,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073849174] [2024-12-02 06:52:57,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:52:57,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:52:57,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:52:57,075 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:52:57,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 06:52:59,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:52:59,462 INFO L256 TraceCheckSpWp]: Trace formula consists of 4575 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 06:52:59,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:52:59,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-12-02 06:52:59,549 INFO L134 CoverageAnalysis]: Checked inductivity of 2830 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 2794 trivial. 0 not checked. [2024-12-02 06:52:59,549 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:52:59,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073849174] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:52:59,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:52:59,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2024-12-02 06:52:59,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490708417] [2024-12-02 06:52:59,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:52:59,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:52:59,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:52:59,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:52:59,551 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-12-02 06:52:59,551 INFO L87 Difference]: Start difference. First operand 57049 states and 80295 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2024-12-02 06:53:01,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:53:01,797 INFO L93 Difference]: Finished difference Result 113975 states and 160539 transitions. [2024-12-02 06:53:01,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:53:01,798 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 604 [2024-12-02 06:53:01,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:53:02,004 INFO L225 Difference]: With dead ends: 113975 [2024-12-02 06:53:02,004 INFO L226 Difference]: Without dead ends: 56977 [2024-12-02 06:53:02,091 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 613 GetRequests, 604 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-12-02 06:53:02,091 INFO L435 NwaCegarLoop]: 1220 mSDtfsCounter, 0 mSDsluCounter, 1214 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2434 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:53:02,092 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2434 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:53:02,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56977 states. [2024-12-02 06:53:03,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56977 to 56977. [2024-12-02 06:53:03,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56977 states, 43282 states have (on average 1.3689986599510189) internal successors, (59253), 43693 states have internal predecessors, (59253), 9382 states have call successors, (9382), 3730 states have call predecessors, (9382), 4312 states have return successors, (11564), 9721 states have call predecessors, (11564), 9380 states have call successors, (11564) [2024-12-02 06:53:03,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56977 states to 56977 states and 80199 transitions. [2024-12-02 06:53:03,906 INFO L78 Accepts]: Start accepts. Automaton has 56977 states and 80199 transitions. Word has length 604 [2024-12-02 06:53:03,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:53:03,907 INFO L471 AbstractCegarLoop]: Abstraction has 56977 states and 80199 transitions. [2024-12-02 06:53:03,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2024-12-02 06:53:03,907 INFO L276 IsEmpty]: Start isEmpty. Operand 56977 states and 80199 transitions. [2024-12-02 06:53:03,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 603 [2024-12-02 06:53:03,981 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:53:03,981 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 16, 16, 16, 16, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:53:03,996 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 06:53:04,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:53:04,182 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:53:04,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:53:04,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1666067720, now seen corresponding path program 1 times [2024-12-02 06:53:04,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:53:04,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452941308] [2024-12-02 06:53:04,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:53:04,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:53:04,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:53:06,499 INFO L134 CoverageAnalysis]: Checked inductivity of 2829 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 2809 trivial. 0 not checked. [2024-12-02 06:53:06,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:53:06,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452941308] [2024-12-02 06:53:06,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452941308] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:53:06,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992001877] [2024-12-02 06:53:06,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:53:06,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:53:06,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:53:06,501 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:53:06,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 06:53:09,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:53:09,152 INFO L256 TraceCheckSpWp]: Trace formula consists of 4571 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 06:53:09,157 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:53:09,367 INFO L134 CoverageAnalysis]: Checked inductivity of 2829 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 2793 trivial. 0 not checked. [2024-12-02 06:53:09,367 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:53:09,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992001877] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:53:09,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:53:09,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-12-02 06:53:09,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368655657] [2024-12-02 06:53:09,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:53:09,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:53:09,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:53:09,369 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:53:09,369 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-12-02 06:53:09,369 INFO L87 Difference]: Start difference. First operand 56977 states and 80199 transitions. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 3 states have call successors, (57), 2 states have call predecessors, (57), 3 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2024-12-02 06:53:11,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:53:11,059 INFO L93 Difference]: Finished difference Result 114519 states and 162803 transitions. [2024-12-02 06:53:11,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:53:11,059 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 3 states have call successors, (57), 2 states have call predecessors, (57), 3 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) Word has length 602 [2024-12-02 06:53:11,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:53:11,377 INFO L225 Difference]: With dead ends: 114519 [2024-12-02 06:53:11,377 INFO L226 Difference]: Without dead ends: 56977 [2024-12-02 06:53:11,568 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 611 GetRequests, 601 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-12-02 06:53:11,569 INFO L435 NwaCegarLoop]: 1218 mSDtfsCounter, 2 mSDsluCounter, 2428 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3646 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:53:11,569 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3646 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:53:11,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56977 states. [2024-12-02 06:53:14,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56977 to 56977. [2024-12-02 06:53:14,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56977 states, 43282 states have (on average 1.3669654821865902) internal successors, (59165), 43693 states have internal predecessors, (59165), 9382 states have call successors, (9382), 3730 states have call predecessors, (9382), 4312 states have return successors, (11564), 9721 states have call predecessors, (11564), 9380 states have call successors, (11564) [2024-12-02 06:53:14,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56977 states to 56977 states and 80111 transitions. [2024-12-02 06:53:14,917 INFO L78 Accepts]: Start accepts. Automaton has 56977 states and 80111 transitions. Word has length 602 [2024-12-02 06:53:14,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:53:14,918 INFO L471 AbstractCegarLoop]: Abstraction has 56977 states and 80111 transitions. [2024-12-02 06:53:14,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 3 states have call successors, (57), 2 states have call predecessors, (57), 3 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2024-12-02 06:53:14,918 INFO L276 IsEmpty]: Start isEmpty. Operand 56977 states and 80111 transitions. [2024-12-02 06:53:15,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 604 [2024-12-02 06:53:15,031 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:53:15,032 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 16, 16, 16, 16, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:53:15,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-02 06:53:15,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:53:15,232 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:53:15,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:53:15,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1148065918, now seen corresponding path program 1 times [2024-12-02 06:53:15,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:53:15,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783296093] [2024-12-02 06:53:15,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:53:15,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:53:15,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:53:17,895 INFO L134 CoverageAnalysis]: Checked inductivity of 2848 backedges. 16 proven. 20 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2024-12-02 06:53:17,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:53:17,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783296093] [2024-12-02 06:53:17,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783296093] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:53:17,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1079544443] [2024-12-02 06:53:17,896 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:53:17,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:53:17,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:53:17,898 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:53:17,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-02 06:53:20,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:53:20,632 INFO L256 TraceCheckSpWp]: Trace formula consists of 4552 conjuncts, 94 conjuncts are in the unsatisfiable core [2024-12-02 06:53:20,640 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:53:20,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2024-12-02 06:53:21,463 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2024-12-02 06:53:21,592 WARN L873 $PredicateComparison]: unable to prove that (and (not (= c_~pccard_nonstatic_ops_group0~0.base 0)) (exists ((|#Ultimate.meminit_#ptr.base| Int)) (= |c_#memory_int#7| (store |c_old(#memory_int#7)| |#Ultimate.meminit_#ptr.base| ((as const (Array Int Int)) 0))))) is different from true [2024-12-02 06:53:21,640 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2024-12-02 06:53:21,980 INFO L349 Elim1Store]: treesize reduction 16, result has 23.8 percent of original size [2024-12-02 06:53:21,981 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 16 [2024-12-02 06:53:22,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2024-12-02 06:53:23,643 WARN L873 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_17678 (Array Int Int)) (|v_nonstatic_init_~s#1.offset_3| Int)) (and (<= |c_nonstatic_init_#in~s#1.offset| |v_nonstatic_init_~s#1.offset_3|) (= |c_#memory_int#7| (let ((.cse0 (store |c_old(#memory_int#7)| 0 v_ArrVal_17678))) (store .cse0 |c_nonstatic_init_#in~s#1.base| (let ((.cse1 (+ 376 |v_nonstatic_init_~s#1.offset_3|))) (store (select .cse0 |c_nonstatic_init_#in~s#1.base|) .cse1 (select (select |c_#memory_int#7| |c_nonstatic_init_#in~s#1.base|) .cse1)))))))) (not (= c_~pccard_nonstatic_ops_group0~0.base 0))) is different from true [2024-12-02 06:53:23,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 06:53:23,773 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 26 [2024-12-02 06:53:24,751 INFO L134 CoverageAnalysis]: Checked inductivity of 2848 backedges. 472 proven. 17 refuted. 0 times theorem prover too weak. 2355 trivial. 4 not checked. [2024-12-02 06:53:24,752 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:53:26,363 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_nonstatic_init_~s#1.offset_8| Int) (v_ArrVal_17691 (Array Int Int)) (|v_pcmcia_nonstatic_validate_mem_~s#1.offset_6| Int)) (or (not (= (mod (select (select (store |c_#memory_int#7| 0 v_ArrVal_17691) c_~pccard_nonstatic_ops_group0~0.base) (+ 19 |v_pcmcia_nonstatic_validate_mem_~s#1.offset_6|)) 4294967296) 8)) (< |v_nonstatic_init_~s#1.offset_8| |v_pcmcia_nonstatic_validate_mem_~s#1.offset_6|))) is different from false [2024-12-02 06:53:26,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1079544443] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:53:26,367 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 06:53:26,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 29] total 37 [2024-12-02 06:53:26,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109479939] [2024-12-02 06:53:26,367 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 06:53:26,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-12-02 06:53:26,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:53:26,368 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-12-02 06:53:26,369 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1363, Unknown=15, NotChecked=228, Total=1722 [2024-12-02 06:53:26,369 INFO L87 Difference]: Start difference. First operand 56977 states and 80111 transitions. Second operand has 37 states, 35 states have (on average 7.685714285714286) internal successors, (269), 28 states have internal predecessors, (269), 10 states have call successors, (72), 7 states have call predecessors, (72), 15 states have return successors, (68), 15 states have call predecessors, (68), 9 states have call successors, (68) [2024-12-02 06:53:30,385 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 06:53:34,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:53:38,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 06:53:42,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:53:46,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:53:50,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 06:53:54,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:53:58,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:54:02,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:54:06,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:54:10,642 WARN L539 Checker$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 06:54:14,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:54:18,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:54:22,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 06:55:24,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:55:24,608 INFO L93 Difference]: Finished difference Result 118574 states and 167128 transitions. [2024-12-02 06:55:24,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2024-12-02 06:55:24,608 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 35 states have (on average 7.685714285714286) internal successors, (269), 28 states have internal predecessors, (269), 10 states have call successors, (72), 7 states have call predecessors, (72), 15 states have return successors, (68), 15 states have call predecessors, (68), 9 states have call successors, (68) Word has length 603 [2024-12-02 06:55:24,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:55:24,871 INFO L225 Difference]: With dead ends: 118574 [2024-12-02 06:55:24,871 INFO L226 Difference]: Without dead ends: 61648 [2024-12-02 06:55:24,988 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 805 GetRequests, 717 SyntacticMatches, 2 SemanticMatches, 86 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1516 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=650, Invalid=6486, Unknown=16, NotChecked=504, Total=7656 [2024-12-02 06:55:24,988 INFO L435 NwaCegarLoop]: 1353 mSDtfsCounter, 5085 mSDsluCounter, 29282 mSDsCounter, 0 mSdLazyCounter, 15062 mSolverCounterSat, 1355 mSolverCounterUnsat, 668 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 105.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5239 SdHoareTripleChecker+Valid, 30635 SdHoareTripleChecker+Invalid, 23888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1355 IncrementalHoareTripleChecker+Valid, 15062 IncrementalHoareTripleChecker+Invalid, 668 IncrementalHoareTripleChecker+Unknown, 6803 IncrementalHoareTripleChecker+Unchecked, 109.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:55:24,988 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5239 Valid, 30635 Invalid, 23888 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1355 Valid, 15062 Invalid, 668 Unknown, 6803 Unchecked, 109.4s Time] [2024-12-02 06:55:25,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61648 states. [2024-12-02 06:55:27,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61648 to 57395. [2024-12-02 06:55:27,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57395 states, 43625 states have (on average 1.3653180515759313) internal successors, (59562), 43966 states have internal predecessors, (59562), 9426 states have call successors, (9426), 3760 states have call predecessors, (9426), 4343 states have return successors, (11618), 9836 states have call predecessors, (11618), 9424 states have call successors, (11618) [2024-12-02 06:55:27,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57395 states to 57395 states and 80606 transitions. [2024-12-02 06:55:27,538 INFO L78 Accepts]: Start accepts. Automaton has 57395 states and 80606 transitions. Word has length 603 [2024-12-02 06:55:27,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:55:27,539 INFO L471 AbstractCegarLoop]: Abstraction has 57395 states and 80606 transitions. [2024-12-02 06:55:27,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 35 states have (on average 7.685714285714286) internal successors, (269), 28 states have internal predecessors, (269), 10 states have call successors, (72), 7 states have call predecessors, (72), 15 states have return successors, (68), 15 states have call predecessors, (68), 9 states have call successors, (68) [2024-12-02 06:55:27,539 INFO L276 IsEmpty]: Start isEmpty. Operand 57395 states and 80606 transitions. [2024-12-02 06:55:27,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 610 [2024-12-02 06:55:27,611 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:55:27,611 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 16, 16, 16, 16, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:55:27,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-12-02 06:55:27,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-12-02 06:55:27,811 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:55:27,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:55:27,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1845644318, now seen corresponding path program 1 times [2024-12-02 06:55:27,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:55:27,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300444184] [2024-12-02 06:55:27,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:55:27,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:55:28,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:55:30,653 INFO L134 CoverageAnalysis]: Checked inductivity of 2802 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 2779 trivial. 0 not checked. [2024-12-02 06:55:30,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:55:30,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300444184] [2024-12-02 06:55:30,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300444184] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:55:30,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [629884446] [2024-12-02 06:55:30,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:55:30,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:55:30,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:55:30,655 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:55:30,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-02 06:55:33,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:55:33,241 INFO L256 TraceCheckSpWp]: Trace formula consists of 4548 conjuncts, 176 conjuncts are in the unsatisfiable core [2024-12-02 06:55:33,251 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:55:33,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2024-12-02 06:55:34,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2024-12-02 06:55:34,482 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2024-12-02 06:55:34,586 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-12-02 06:55:34,586 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-12-02 06:55:34,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2024-12-02 06:55:34,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2024-12-02 06:55:34,741 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-12-02 06:55:34,741 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-12-02 06:55:34,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2024-12-02 06:55:34,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2024-12-02 06:55:34,897 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-12-02 06:55:34,898 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-12-02 06:55:34,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2024-12-02 06:55:34,962 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2024-12-02 06:55:35,059 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-12-02 06:55:35,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-12-02 06:55:35,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2024-12-02 06:55:35,133 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2024-12-02 06:55:35,229 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-12-02 06:55:35,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-12-02 06:55:35,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2024-12-02 06:55:35,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2024-12-02 06:55:35,398 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-12-02 06:55:35,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-12-02 06:55:39,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2024-12-02 06:55:39,737 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2024-12-02 06:55:39,839 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-12-02 06:55:39,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-12-02 06:55:39,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2024-12-02 06:55:39,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2024-12-02 06:55:40,008 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-12-02 06:55:40,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-12-02 06:55:40,047 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2024-12-02 06:55:40,078 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2024-12-02 06:55:40,173 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-12-02 06:55:40,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-12-02 06:55:40,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2024-12-02 06:55:40,247 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2024-12-02 06:55:40,352 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-12-02 06:55:40,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-12-02 06:55:40,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2024-12-02 06:55:40,431 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2024-12-02 06:55:40,530 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-12-02 06:55:40,530 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-12-02 06:55:40,570 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2024-12-02 06:55:40,599 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2024-12-02 06:55:40,694 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-12-02 06:55:40,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-12-02 06:55:40,740 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2024-12-02 06:55:40,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2024-12-02 06:55:40,871 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-12-02 06:55:40,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-12-02 06:55:40,911 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2024-12-02 06:55:40,942 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2024-12-02 06:55:41,041 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-12-02 06:55:41,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-12-02 06:55:41,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-12-02 06:55:41,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2024-12-02 06:55:41,665 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-12-02 06:55:42,269 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-12-02 06:55:42,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-12-02 06:55:42,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2024-12-02 06:55:43,078 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2024-12-02 06:55:43,590 INFO L349 Elim1Store]: treesize reduction 16, result has 23.8 percent of original size [2024-12-02 06:55:43,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 16 [2024-12-02 06:55:43,961 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2024-12-02 06:55:44,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 06:55:44,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 06:55:44,863 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 10 [2024-12-02 06:55:45,926 INFO L134 CoverageAnalysis]: Checked inductivity of 2802 backedges. 339 proven. 418 refuted. 0 times theorem prover too weak. 2045 trivial. 0 not checked. [2024-12-02 06:55:45,926 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:55:48,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [629884446] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:55:48,169 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 06:55:48,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 29] total 43 [2024-12-02 06:55:48,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355124167] [2024-12-02 06:55:48,169 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 06:55:48,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-12-02 06:55:48,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:55:48,170 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-12-02 06:55:48,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=2102, Unknown=22, NotChecked=0, Total=2256 [2024-12-02 06:55:48,171 INFO L87 Difference]: Start difference. First operand 57395 states and 80606 transitions. Second operand has 43 states, 42 states have (on average 9.071428571428571) internal successors, (381), 33 states have internal predecessors, (381), 14 states have call successors, (115), 9 states have call predecessors, (115), 17 states have return successors, (111), 20 states have call predecessors, (111), 13 states have call successors, (111) [2024-12-02 06:55:52,188 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 06:55:56,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:56:00,223 WARN L539 Checker$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 06:56:04,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 06:56:08,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:56:12,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:56:16,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:56:20,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:56:24,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 06:56:28,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 06:56:32,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:56:36,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:56:40,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:56:44,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:56:48,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:56:52,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 06:56:56,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:57:00,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:57:04,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 06:57:08,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:57:12,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:57:16,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:57:20,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 06:57:24,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 07:00:00,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:00:00,379 INFO L93 Difference]: Finished difference Result 400263 states and 605702 transitions. [2024-12-02 07:00:00,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 200 states. [2024-12-02 07:00:00,380 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 42 states have (on average 9.071428571428571) internal successors, (381), 33 states have internal predecessors, (381), 14 states have call successors, (115), 9 states have call predecessors, (115), 17 states have return successors, (111), 20 states have call predecessors, (111), 13 states have call successors, (111) Word has length 609 [2024-12-02 07:00:00,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:00:01,697 INFO L225 Difference]: With dead ends: 400263 [2024-12-02 07:00:01,698 INFO L226 Difference]: Without dead ends: 343137 [2024-12-02 07:00:01,975 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 989 GetRequests, 718 SyntacticMatches, 38 SemanticMatches, 233 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19291 ImplicationChecksByTransitivity, 38.6s TimeCoverageRelationStatistics Valid=3250, Invalid=51696, Unknown=44, NotChecked=0, Total=54990 [2024-12-02 07:00:01,975 INFO L435 NwaCegarLoop]: 1213 mSDtfsCounter, 16585 mSDsluCounter, 37057 mSDsCounter, 0 mSdLazyCounter, 27338 mSolverCounterSat, 6646 mSolverCounterUnsat, 1798 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 198.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16776 SdHoareTripleChecker+Valid, 38270 SdHoareTripleChecker+Invalid, 35782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 6646 IncrementalHoareTripleChecker+Valid, 27338 IncrementalHoareTripleChecker+Invalid, 1798 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 205.6s IncrementalHoareTripleChecker+Time [2024-12-02 07:00:01,976 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16776 Valid, 38270 Invalid, 35782 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [6646 Valid, 27338 Invalid, 1798 Unknown, 0 Unchecked, 205.6s Time] [2024-12-02 07:00:02,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343137 states. [2024-12-02 07:00:18,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343137 to 303172. [2024-12-02 07:00:18,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303172 states, 232862 states have (on average 1.383141087854609) internal successors, (322081), 235063 states have internal predecessors, (322081), 45746 states have call successors, (45746), 19064 states have call predecessors, (45746), 24563 states have return successors, (82434), 49300 states have call predecessors, (82434), 45744 states have call successors, (82434) [2024-12-02 07:00:19,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303172 states to 303172 states and 450261 transitions. [2024-12-02 07:00:20,066 INFO L78 Accepts]: Start accepts. Automaton has 303172 states and 450261 transitions. Word has length 609 [2024-12-02 07:00:20,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:00:20,067 INFO L471 AbstractCegarLoop]: Abstraction has 303172 states and 450261 transitions. [2024-12-02 07:00:20,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 42 states have (on average 9.071428571428571) internal successors, (381), 33 states have internal predecessors, (381), 14 states have call successors, (115), 9 states have call predecessors, (115), 17 states have return successors, (111), 20 states have call predecessors, (111), 13 states have call successors, (111) [2024-12-02 07:00:20,067 INFO L276 IsEmpty]: Start isEmpty. Operand 303172 states and 450261 transitions. [2024-12-02 07:00:20,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 626 [2024-12-02 07:00:20,573 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:00:20,573 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 16, 16, 16, 16, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:00:20,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-12-02 07:00:20,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-12-02 07:00:20,774 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:00:20,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:00:20,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1789717565, now seen corresponding path program 1 times [2024-12-02 07:00:20,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:00:20,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429951780] [2024-12-02 07:00:20,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:00:20,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:00:21,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:00:24,851 INFO L134 CoverageAnalysis]: Checked inductivity of 2985 backedges. 9 proven. 21 refuted. 0 times theorem prover too weak. 2955 trivial. 0 not checked. [2024-12-02 07:00:24,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:00:24,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429951780] [2024-12-02 07:00:24,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429951780] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:00:24,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190412856] [2024-12-02 07:00:24,852 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:00:24,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:00:24,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:00:24,854 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:00:24,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-12-02 07:00:27,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:00:27,379 INFO L256 TraceCheckSpWp]: Trace formula consists of 4703 conjuncts, 74 conjuncts are in the unsatisfiable core [2024-12-02 07:00:27,386 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:00:27,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2985 backedges. 21 proven. 19 refuted. 0 times theorem prover too weak. 2945 trivial. 0 not checked. [2024-12-02 07:00:27,816 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:00:32,737 INFO L134 CoverageAnalysis]: Checked inductivity of 2985 backedges. 9 proven. 21 refuted. 0 times theorem prover too weak. 2955 trivial. 0 not checked. [2024-12-02 07:00:32,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190412856] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:00:32,737 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:00:32,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17, 16] total 31 [2024-12-02 07:00:32,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042479246] [2024-12-02 07:00:32,738 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:00:32,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-12-02 07:00:32,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:00:32,739 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-12-02 07:00:32,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=857, Unknown=0, NotChecked=0, Total=930 [2024-12-02 07:00:32,739 INFO L87 Difference]: Start difference. First operand 303172 states and 450261 transitions. Second operand has 31 states, 31 states have (on average 6.967741935483871) internal successors, (216), 21 states have internal predecessors, (216), 4 states have call successors, (59), 2 states have call predecessors, (59), 12 states have return successors, (61), 14 states have call predecessors, (61), 4 states have call successors, (61) [2024-12-02 07:00:50,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:00:50,730 INFO L93 Difference]: Finished difference Result 541222 states and 812713 transitions. [2024-12-02 07:00:50,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 07:00:50,731 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 6.967741935483871) internal successors, (216), 21 states have internal predecessors, (216), 4 states have call successors, (59), 2 states have call predecessors, (59), 12 states have return successors, (61), 14 states have call predecessors, (61), 4 states have call successors, (61) Word has length 625 [2024-12-02 07:00:50,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:00:52,438 INFO L225 Difference]: With dead ends: 541222 [2024-12-02 07:00:52,438 INFO L226 Difference]: Without dead ends: 313192 [2024-12-02 07:00:53,181 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1265 GetRequests, 1236 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=73, Invalid=857, Unknown=0, NotChecked=0, Total=930 [2024-12-02 07:00:53,182 INFO L435 NwaCegarLoop]: 1243 mSDtfsCounter, 27 mSDsluCounter, 27262 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 28505 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 07:00:53,182 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 28505 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 07:00:53,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313192 states. [2024-12-02 07:01:09,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313192 to 303588. [2024-12-02 07:01:09,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303588 states, 233070 states have (on average 1.382799159050929) internal successors, (322289), 235271 states have internal predecessors, (322289), 45954 states have call successors, (45954), 19064 states have call predecessors, (45954), 24563 states have return successors, (83058), 49508 states have call predecessors, (83058), 45952 states have call successors, (83058) [2024-12-02 07:01:10,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303588 states to 303588 states and 451301 transitions. [2024-12-02 07:01:11,546 INFO L78 Accepts]: Start accepts. Automaton has 303588 states and 451301 transitions. Word has length 625 [2024-12-02 07:01:11,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:01:11,547 INFO L471 AbstractCegarLoop]: Abstraction has 303588 states and 451301 transitions. [2024-12-02 07:01:11,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 6.967741935483871) internal successors, (216), 21 states have internal predecessors, (216), 4 states have call successors, (59), 2 states have call predecessors, (59), 12 states have return successors, (61), 14 states have call predecessors, (61), 4 states have call successors, (61) [2024-12-02 07:01:11,548 INFO L276 IsEmpty]: Start isEmpty. Operand 303588 states and 451301 transitions. [2024-12-02 07:01:12,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2024-12-02 07:01:12,115 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:01:12,115 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 16, 16, 16, 16, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:01:12,133 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-12-02 07:01:12,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-12-02 07:01:12,316 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:01:12,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:01:12,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1984694574, now seen corresponding path program 1 times [2024-12-02 07:01:12,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:01:12,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851471161] [2024-12-02 07:01:12,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:01:12,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:01:13,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:01:15,819 INFO L134 CoverageAnalysis]: Checked inductivity of 3087 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3081 trivial. 0 not checked. [2024-12-02 07:01:15,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:01:15,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851471161] [2024-12-02 07:01:15,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851471161] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:01:15,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:01:15,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 07:01:15,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952578507] [2024-12-02 07:01:15,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:01:15,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 07:01:15,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:01:15,822 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 07:01:15,822 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:01:15,822 INFO L87 Difference]: Start difference. First operand 303588 states and 451301 transitions. Second operand has 8 states, 8 states have (on average 20.25) internal successors, (162), 6 states have internal predecessors, (162), 2 states have call successors, (54), 2 states have call predecessors, (54), 3 states have return successors, (48), 3 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 07:01:31,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:01:31,773 INFO L93 Difference]: Finished difference Result 532782 states and 792985 transitions. [2024-12-02 07:01:31,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:01:31,774 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.25) internal successors, (162), 6 states have internal predecessors, (162), 2 states have call successors, (54), 2 states have call predecessors, (54), 3 states have return successors, (48), 3 states have call predecessors, (48), 1 states have call successors, (48) Word has length 631 [2024-12-02 07:01:31,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:01:33,270 INFO L225 Difference]: With dead ends: 532782 [2024-12-02 07:01:33,270 INFO L226 Difference]: Without dead ends: 304336 [2024-12-02 07:01:34,053 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:01:34,053 INFO L435 NwaCegarLoop]: 1216 mSDtfsCounter, 0 mSDsluCounter, 7287 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8503 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:01:34,053 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8503 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:01:34,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304336 states. [2024-12-02 07:01:49,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304336 to 304324. [2024-12-02 07:01:49,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304324 states, 233726 states have (on average 1.3817247546272131) internal successors, (322945), 235719 states have internal predecessors, (322945), 45954 states have call successors, (45954), 19064 states have call predecessors, (45954), 24643 states have return successors, (83314), 49796 states have call predecessors, (83314), 45952 states have call successors, (83314) [2024-12-02 07:01:50,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304324 states to 304324 states and 452213 transitions. [2024-12-02 07:01:51,285 INFO L78 Accepts]: Start accepts. Automaton has 304324 states and 452213 transitions. Word has length 631 [2024-12-02 07:01:51,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:01:51,286 INFO L471 AbstractCegarLoop]: Abstraction has 304324 states and 452213 transitions. [2024-12-02 07:01:51,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.25) internal successors, (162), 6 states have internal predecessors, (162), 2 states have call successors, (54), 2 states have call predecessors, (54), 3 states have return successors, (48), 3 states have call predecessors, (48), 1 states have call successors, (48) [2024-12-02 07:01:51,286 INFO L276 IsEmpty]: Start isEmpty. Operand 304324 states and 452213 transitions. [2024-12-02 07:01:51,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 638 [2024-12-02 07:01:51,798 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:01:51,798 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 16, 16, 16, 16, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:01:51,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 07:01:51,798 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:01:51,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:01:51,798 INFO L85 PathProgramCache]: Analyzing trace with hash -2086087492, now seen corresponding path program 1 times [2024-12-02 07:01:51,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:01:51,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910399834] [2024-12-02 07:01:51,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:01:51,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:01:52,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:02:01,897 INFO L134 CoverageAnalysis]: Checked inductivity of 3177 backedges. 290 proven. 77 refuted. 0 times theorem prover too weak. 2810 trivial. 0 not checked. [2024-12-02 07:02:01,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:02:01,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910399834] [2024-12-02 07:02:01,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910399834] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:02:01,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139217671] [2024-12-02 07:02:01,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:02:01,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:02:01,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:02:01,900 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:02:01,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00b650de-095b-40e5-94df-93f6b60382bb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-12-02 07:02:04,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:02:04,455 INFO L256 TraceCheckSpWp]: Trace formula consists of 4798 conjuncts, 159 conjuncts are in the unsatisfiable core [2024-12-02 07:02:04,464 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:02:04,480 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-12-02 07:02:06,161 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-12-02 07:02:06,409 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2024-12-02 07:02:06,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2024-12-02 07:02:06,547 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-12-02 07:02:06,547 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-12-02 07:02:06,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-12-02 07:02:09,248 INFO L349 Elim1Store]: treesize reduction 106, result has 40.4 percent of original size [2024-12-02 07:02:09,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 81 [2024-12-02 07:02:09,500 INFO L349 Elim1Store]: treesize reduction 156, result has 27.1 percent of original size [2024-12-02 07:02:09,500 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 107 treesize of output 58 [2024-12-02 07:02:10,297 INFO L349 Elim1Store]: treesize reduction 4, result has 71.4 percent of original size [2024-12-02 07:02:10,298 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2024-12-02 07:02:12,421 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 16 [2024-12-02 07:02:12,798 INFO L134 CoverageAnalysis]: Checked inductivity of 3177 backedges. 609 proven. 26 refuted. 0 times theorem prover too weak. 2542 trivial. 0 not checked. [2024-12-02 07:02:12,799 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:02:16,418 INFO L349 Elim1Store]: treesize reduction 4, result has 97.5 percent of original size [2024-12-02 07:02:16,419 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 88156 treesize of output 86820 [2024-12-02 07:02:17,308 INFO L349 Elim1Store]: treesize reduction 52, result has 63.6 percent of original size [2024-12-02 07:02:17,310 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 2058863 treesize of output 1364063 [2024-12-02 07:02:24,575 WARN L286 SmtUtils]: Spent 7.26s on a formula simplification. DAG size of input: 1347 DAG size of output: 525 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)