./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f3bc53-ddf8-404e-a7c3-190a6479c000/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f3bc53-ddf8-404e-a7c3-190a6479c000/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f3bc53-ddf8-404e-a7c3-190a6479c000/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f3bc53-ddf8-404e-a7c3-190a6479c000/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f3bc53-ddf8-404e-a7c3-190a6479c000/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f3bc53-ddf8-404e-a7c3-190a6479c000/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash affe6b2992f7714f4bd95d6011e70945dc7608cfcd3847461bdcd80eeea00f05 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:54:30,477 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:54:30,606 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f3bc53-ddf8-404e-a7c3-190a6479c000/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 01:54:30,614 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:54:30,615 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:54:30,662 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:54:30,663 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:54:30,665 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:54:30,666 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:54:30,666 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:54:30,666 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:54:30,666 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:54:30,666 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:54:30,666 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:54:30,667 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:54:30,667 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:54:30,667 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:54:30,667 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:54:30,667 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:54:30,667 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:54:30,667 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:54:30,667 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:54:30,668 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:54:30,670 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:54:30,670 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:54:30,671 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:54:30,671 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:54:30,671 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:54:30,671 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:54:30,671 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:54:30,671 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:54:30,672 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:54:30,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:54:30,672 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:54:30,673 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:54:30,673 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:54:30,673 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:54:30,673 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:54:30,674 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:54:30,674 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:54:30,674 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:54:30,674 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:54:30,674 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:54:30,674 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:54:30,675 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:54:30,675 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:54:30,675 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:54:30,675 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:54:30,675 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_d7f3bc53-ddf8-404e-a7c3-190a6479c000/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> affe6b2992f7714f4bd95d6011e70945dc7608cfcd3847461bdcd80eeea00f05 [2024-11-24 01:54:31,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:54:31,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:54:31,101 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:54:31,103 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:54:31,103 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:54:31,105 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f3bc53-ddf8-404e-a7c3-190a6479c000/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_1-1.i [2024-11-24 01:54:34,759 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f3bc53-ddf8-404e-a7c3-190a6479c000/bin/uautomizer-verify-LYvppIcaGC/data/e83e2ae31/95c5bf6ee5c543eb9e12817fb96cc619/FLAG14f8a6c7d [2024-11-24 01:54:35,129 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:54:35,130 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f3bc53-ddf8-404e-a7c3-190a6479c000/sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_1-1.i [2024-11-24 01:54:35,140 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f3bc53-ddf8-404e-a7c3-190a6479c000/bin/uautomizer-verify-LYvppIcaGC/data/e83e2ae31/95c5bf6ee5c543eb9e12817fb96cc619/FLAG14f8a6c7d [2024-11-24 01:54:35,160 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f3bc53-ddf8-404e-a7c3-190a6479c000/bin/uautomizer-verify-LYvppIcaGC/data/e83e2ae31/95c5bf6ee5c543eb9e12817fb96cc619 [2024-11-24 01:54:35,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:54:35,165 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:54:35,166 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:54:35,167 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:54:35,172 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:54:35,174 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:54:35" (1/1) ... [2024-11-24 01:54:35,175 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6681b992 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:35, skipping insertion in model container [2024-11-24 01:54:35,175 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:54:35" (1/1) ... [2024-11-24 01:54:35,196 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:54:35,407 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_d7f3bc53-ddf8-404e-a7c3-190a6479c000/sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_1-1.i[1692,1705] [2024-11-24 01:54:35,436 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:54:35,449 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:54:35,464 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_d7f3bc53-ddf8-404e-a7c3-190a6479c000/sv-benchmarks/c/recursified_loop-crafted/recursified_simple_array_index_value_1-1.i[1692,1705] [2024-11-24 01:54:35,474 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:54:35,494 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:54:35,495 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:35 WrapperNode [2024-11-24 01:54:35,495 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:54:35,496 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:54:35,497 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:54:35,497 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:54:35,513 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:35" (1/1) ... [2024-11-24 01:54:35,528 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:35" (1/1) ... [2024-11-24 01:54:35,550 INFO L138 Inliner]: procedures = 17, calls = 32, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2024-11-24 01:54:35,551 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:54:35,552 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:54:35,554 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:54:35,554 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:54:35,565 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:35" (1/1) ... [2024-11-24 01:54:35,565 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:35" (1/1) ... [2024-11-24 01:54:35,569 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:35" (1/1) ... [2024-11-24 01:54:35,595 INFO L175 MemorySlicer]: Split 18 memory accesses to 3 slices as follows [2, 3, 13]. 72 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 5 writes are split as follows [0, 1, 4]. [2024-11-24 01:54:35,596 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:35" (1/1) ... [2024-11-24 01:54:35,596 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:35" (1/1) ... [2024-11-24 01:54:35,614 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:35" (1/1) ... [2024-11-24 01:54:35,615 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:35" (1/1) ... [2024-11-24 01:54:35,617 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:35" (1/1) ... [2024-11-24 01:54:35,622 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:35" (1/1) ... [2024-11-24 01:54:35,623 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:35" (1/1) ... [2024-11-24 01:54:35,627 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:54:35,632 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:54:35,632 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:54:35,632 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:54:35,633 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:35" (1/1) ... [2024-11-24 01:54:35,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:54:35,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f3bc53-ddf8-404e-a7c3-190a6479c000/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:54:35,683 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f3bc53-ddf8-404e-a7c3-190a6479c000/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:54:35,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f3bc53-ddf8-404e-a7c3-190a6479c000/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:54:35,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:54:35,725 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_32_to_33_0 [2024-11-24 01:54:35,726 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_32_to_33_0 [2024-11-24 01:54:35,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:54:35,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 01:54:35,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 01:54:35,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-24 01:54:35,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 01:54:35,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 01:54:35,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-24 01:54:35,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:54:35,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:54:35,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 01:54:35,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 01:54:35,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-24 01:54:35,727 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-24 01:54:35,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-24 01:54:35,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 01:54:35,727 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_36_to_40_0 [2024-11-24 01:54:35,727 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_36_to_40_0 [2024-11-24 01:54:35,864 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:54:35,867 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:54:36,147 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-24 01:54:36,147 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:54:36,165 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:54:36,166 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-24 01:54:36,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:54:36 BoogieIcfgContainer [2024-11-24 01:54:36,166 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:54:36,170 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:54:36,170 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:54:36,180 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:54:36,181 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:54:35" (1/3) ... [2024-11-24 01:54:36,182 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ec42efb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:54:36, skipping insertion in model container [2024-11-24 01:54:36,182 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:54:35" (2/3) ... [2024-11-24 01:54:36,183 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ec42efb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:54:36, skipping insertion in model container [2024-11-24 01:54:36,184 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:54:36" (3/3) ... [2024-11-24 01:54:36,185 INFO L128 eAbstractionObserver]: Analyzing ICFG recursified_simple_array_index_value_1-1.i [2024-11-24 01:54:36,207 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:54:36,209 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG recursified_simple_array_index_value_1-1.i that has 4 procedures, 31 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-24 01:54:36,298 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:54:36,319 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;@5752f2a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:54:36,319 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:54:36,325 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 20 states have (on average 1.25) internal successors, (25), 23 states have internal predecessors, (25), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-24 01:54:36,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-24 01:54:36,336 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:54:36,337 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:54:36,337 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:54:36,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:54:36,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1126307537, now seen corresponding path program 1 times [2024-11-24 01:54:36,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:54:36,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419529463] [2024-11-24 01:54:36,356 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:54:36,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:54:36,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:54:37,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:54:37,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:54:37,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419529463] [2024-11-24 01:54:37,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419529463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:54:37,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:54:37,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:54:37,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697908021] [2024-11-24 01:54:37,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:54:37,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:54:37,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:54:37,484 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:54:37,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:54:37,488 INFO L87 Difference]: Start difference. First operand has 31 states, 20 states have (on average 1.25) internal successors, (25), 23 states have internal predecessors, (25), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-24 01:54:37,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:54:37,832 INFO L93 Difference]: Finished difference Result 59 states and 75 transitions. [2024-11-24 01:54:37,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:54:37,836 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2024-11-24 01:54:37,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:54:37,847 INFO L225 Difference]: With dead ends: 59 [2024-11-24 01:54:37,847 INFO L226 Difference]: Without dead ends: 27 [2024-11-24 01:54:37,853 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:54:37,860 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 14 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:54:37,861 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 46 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:54:37,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-24 01:54:37,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-11-24 01:54:37,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 19 states have internal predecessors, (20), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-24 01:54:37,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2024-11-24 01:54:37,911 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 16 [2024-11-24 01:54:37,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:54:37,912 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2024-11-24 01:54:37,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-24 01:54:37,912 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2024-11-24 01:54:37,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-24 01:54:37,914 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:54:37,914 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:54:37,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 01:54:37,915 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:54:37,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:54:37,916 INFO L85 PathProgramCache]: Analyzing trace with hash 324223833, now seen corresponding path program 1 times [2024-11-24 01:54:37,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:54:37,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217318849] [2024-11-24 01:54:37,916 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:54:37,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:54:37,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:54:38,809 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 01:54:38,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:54:38,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217318849] [2024-11-24 01:54:38,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217318849] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:54:38,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1505912534] [2024-11-24 01:54:38,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:54:38,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:54:38,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f3bc53-ddf8-404e-a7c3-190a6479c000/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:54:38,818 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f3bc53-ddf8-404e-a7c3-190a6479c000/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:54:38,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f3bc53-ddf8-404e-a7c3-190a6479c000/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:54:38,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:54:38,944 INFO L256 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-24 01:54:38,952 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:54:39,005 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 11 treesize of output 7 [2024-11-24 01:54:39,322 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 01:54:39,323 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:54:40,130 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:54:40,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1505912534] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:54:40,130 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:54:40,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 10] total 21 [2024-11-24 01:54:40,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632832691] [2024-11-24 01:54:40,133 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:54:40,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-24 01:54:40,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:54:40,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-24 01:54:40,139 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2024-11-24 01:54:40,139 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 21 states, 16 states have (on average 1.6875) internal successors, (27), 18 states have internal predecessors, (27), 6 states have call successors, (7), 4 states have call predecessors, (7), 6 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-24 01:54:40,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:54:40,677 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2024-11-24 01:54:40,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 01:54:40,678 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 1.6875) internal successors, (27), 18 states have internal predecessors, (27), 6 states have call successors, (7), 4 states have call predecessors, (7), 6 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 21 [2024-11-24 01:54:40,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:54:40,679 INFO L225 Difference]: With dead ends: 48 [2024-11-24 01:54:40,679 INFO L226 Difference]: Without dead ends: 31 [2024-11-24 01:54:40,680 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=117, Invalid=483, Unknown=0, NotChecked=0, Total=600 [2024-11-24 01:54:40,681 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 18 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:54:40,682 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 66 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:54:40,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-24 01:54:40,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-11-24 01:54:40,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 21 states have internal predecessors, (22), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (7), 6 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-24 01:54:40,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2024-11-24 01:54:40,691 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 21 [2024-11-24 01:54:40,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:54:40,691 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2024-11-24 01:54:40,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 1.6875) internal successors, (27), 18 states have internal predecessors, (27), 6 states have call successors, (7), 4 states have call predecessors, (7), 6 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-24 01:54:40,692 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2024-11-24 01:54:40,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-24 01:54:40,693 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:54:40,693 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:54:40,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f3bc53-ddf8-404e-a7c3-190a6479c000/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-24 01:54:40,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f3bc53-ddf8-404e-a7c3-190a6479c000/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:54:40,898 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:54:40,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:54:40,899 INFO L85 PathProgramCache]: Analyzing trace with hash -2121730461, now seen corresponding path program 2 times [2024-11-24 01:54:40,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:54:40,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219859358] [2024-11-24 01:54:40,900 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:54:40,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:54:40,950 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:54:40,950 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:54:42,429 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-24 01:54:42,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:54:42,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219859358] [2024-11-24 01:54:42,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219859358] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:54:42,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795772672] [2024-11-24 01:54:42,430 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:54:42,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:54:42,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f3bc53-ddf8-404e-a7c3-190a6479c000/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:54:42,433 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f3bc53-ddf8-404e-a7c3-190a6479c000/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:54:42,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f3bc53-ddf8-404e-a7c3-190a6479c000/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:54:42,776 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:54:42,777 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:54:42,781 WARN L254 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 123 conjuncts are in the unsatisfiable core [2024-11-24 01:54:42,796 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:54:42,815 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 11 treesize of output 7 [2024-11-24 01:54:42,999 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 27 treesize of output 23 [2024-11-24 01:54:43,917 INFO L349 Elim1Store]: treesize reduction 213, result has 7.4 percent of original size [2024-11-24 01:54:43,917 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 2 case distinctions, treesize of input 94 treesize of output 27 [2024-11-24 01:54:44,052 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 [2024-11-24 01:54:44,115 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 11 treesize of output 7 [2024-11-24 01:54:44,586 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 01:54:44,586 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:54:48,633 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 01:54:48,635 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 01:54:48,637 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 01:54:48,672 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:54:48,673 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 142 treesize of output 172 [2024-11-24 01:54:48,734 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 01:54:48,742 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:54:48,742 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 94 treesize of output 47 [2024-11-24 01:54:48,761 INFO L349 Elim1Store]: treesize reduction 5, result has 64.3 percent of original size [2024-11-24 01:54:48,761 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 30 treesize of output 25 [2024-11-24 01:54:50,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [795772672] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:54:50,197 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:54:50,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 21] total 31 [2024-11-24 01:54:50,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558488454] [2024-11-24 01:54:50,198 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:54:50,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-24 01:54:50,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:54:50,200 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-24 01:54:50,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1438, Unknown=0, NotChecked=0, Total=1560 [2024-11-24 01:54:50,204 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand has 31 states, 23 states have (on average 1.608695652173913) internal successors, (37), 26 states have internal predecessors, (37), 10 states have call successors, (11), 6 states have call predecessors, (11), 8 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-24 01:54:52,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:54:52,812 INFO L93 Difference]: Finished difference Result 61 states and 72 transitions. [2024-11-24 01:54:52,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 01:54:52,813 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 23 states have (on average 1.608695652173913) internal successors, (37), 26 states have internal predecessors, (37), 10 states have call successors, (11), 6 states have call predecessors, (11), 8 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) Word has length 31 [2024-11-24 01:54:52,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:54:52,814 INFO L225 Difference]: With dead ends: 61 [2024-11-24 01:54:52,814 INFO L226 Difference]: Without dead ends: 40 [2024-11-24 01:54:52,817 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=249, Invalid=2507, Unknown=0, NotChecked=0, Total=2756 [2024-11-24 01:54:52,819 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 53 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:54:52,819 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 134 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 01:54:52,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-24 01:54:52,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2024-11-24 01:54:52,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 24 states have (on average 1.125) internal successors, (27), 25 states have internal predecessors, (27), 7 states have call successors, (7), 5 states have call predecessors, (7), 6 states have return successors, (8), 7 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-24 01:54:52,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2024-11-24 01:54:52,832 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 31 [2024-11-24 01:54:52,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:54:52,832 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2024-11-24 01:54:52,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 23 states have (on average 1.608695652173913) internal successors, (37), 26 states have internal predecessors, (37), 10 states have call successors, (11), 6 states have call predecessors, (11), 8 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-24 01:54:52,834 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2024-11-24 01:54:52,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-24 01:54:52,835 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:54:52,836 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:54:52,849 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f3bc53-ddf8-404e-a7c3-190a6479c000/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 01:54:53,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f3bc53-ddf8-404e-a7c3-190a6479c000/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:54:53,040 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:54:53,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:54:53,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1964766107, now seen corresponding path program 3 times [2024-11-24 01:54:53,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:54:53,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467175243] [2024-11-24 01:54:53,041 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 01:54:53,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:54:53,126 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-24 01:54:53,126 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:54:54,809 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 8 proven. 26 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 01:54:54,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:54:54,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467175243] [2024-11-24 01:54:54,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467175243] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:54:54,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1165975775] [2024-11-24 01:54:54,810 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 01:54:54,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:54:54,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f3bc53-ddf8-404e-a7c3-190a6479c000/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:54:54,813 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f3bc53-ddf8-404e-a7c3-190a6479c000/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:54:54,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f3bc53-ddf8-404e-a7c3-190a6479c000/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:54:55,108 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-24 01:54:55,109 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:54:55,114 WARN L254 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 154 conjuncts are in the unsatisfiable core [2024-11-24 01:54:55,123 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:54:55,139 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 11 treesize of output 7 [2024-11-24 01:54:55,280 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 27 treesize of output 23 [2024-11-24 01:54:56,732 INFO L349 Elim1Store]: treesize reduction 447, result has 3.7 percent of original size [2024-11-24 01:54:56,733 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 3 case distinctions, treesize of input 125 treesize of output 27 [2024-11-24 01:54:56,886 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 [2024-11-24 01:54:56,947 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 11 treesize of output 7 [2024-11-24 01:54:57,574 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 33 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-24 01:54:57,574 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:55:04,517 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 01:55:04,520 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 01:55:04,521 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 01:55:04,524 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 01:55:04,526 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 01:55:04,528 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 01:55:04,531 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 01:55:04,613 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:55:04,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 371 treesize of output 486 [2024-11-24 01:55:04,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 139 treesize of output 122 [2024-11-24 01:55:04,814 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 01:55:04,816 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 01:55:04,817 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 01:55:04,838 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:55:04,838 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 129 treesize of output 66 [2024-11-24 01:55:04,859 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 01:55:04,860 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 01:55:04,861 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 01:55:04,863 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 219 treesize of output 121 [2024-11-24 01:55:04,875 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 01:55:04,877 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 01:55:04,880 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 01:55:04,882 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 01:55:04,887 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 01:55:04,890 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 01:55:04,892 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 01:55:04,894 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 01:55:04,895 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 01:55:04,910 INFO L349 Elim1Store]: treesize reduction 5, result has 64.3 percent of original size [2024-11-24 01:55:04,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 128 treesize of output 81 [2024-11-24 01:55:04,924 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 22 treesize of output 10 [2024-11-24 01:55:08,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1165975775] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:55:08,159 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:55:08,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 22] total 35 [2024-11-24 01:55:08,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678682839] [2024-11-24 01:55:08,159 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:55:08,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-24 01:55:08,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:55:08,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-24 01:55:08,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=1753, Unknown=0, NotChecked=0, Total=1892 [2024-11-24 01:55:08,162 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 35 states, 26 states have (on average 1.5769230769230769) internal successors, (41), 30 states have internal predecessors, (41), 11 states have call successors, (12), 6 states have call predecessors, (12), 10 states have return successors, (10), 10 states have call predecessors, (10), 8 states have call successors, (10) [2024-11-24 01:55:14,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:55:14,071 INFO L93 Difference]: Finished difference Result 72 states and 83 transitions. [2024-11-24 01:55:14,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-24 01:55:14,072 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 26 states have (on average 1.5769230769230769) internal successors, (41), 30 states have internal predecessors, (41), 11 states have call successors, (12), 6 states have call predecessors, (12), 10 states have return successors, (10), 10 states have call predecessors, (10), 8 states have call successors, (10) Word has length 36 [2024-11-24 01:55:14,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:55:14,073 INFO L225 Difference]: With dead ends: 72 [2024-11-24 01:55:14,073 INFO L226 Difference]: Without dead ends: 49 [2024-11-24 01:55:14,075 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 26 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 830 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=377, Invalid=3655, Unknown=0, NotChecked=0, Total=4032 [2024-11-24 01:55:14,076 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 54 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 951 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 1010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:55:14,077 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 174 Invalid, 1010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 951 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-24 01:55:14,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-24 01:55:14,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2024-11-24 01:55:14,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 28 states have internal predecessors, (30), 8 states have call successors, (8), 6 states have call predecessors, (8), 7 states have return successors, (9), 8 states have call predecessors, (9), 6 states have call successors, (9) [2024-11-24 01:55:14,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2024-11-24 01:55:14,091 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 36 [2024-11-24 01:55:14,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:55:14,091 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2024-11-24 01:55:14,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 26 states have (on average 1.5769230769230769) internal successors, (41), 30 states have internal predecessors, (41), 11 states have call successors, (12), 6 states have call predecessors, (12), 10 states have return successors, (10), 10 states have call predecessors, (10), 8 states have call successors, (10) [2024-11-24 01:55:14,092 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2024-11-24 01:55:14,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-24 01:55:14,093 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:55:14,093 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:55:14,102 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f3bc53-ddf8-404e-a7c3-190a6479c000/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 01:55:14,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f3bc53-ddf8-404e-a7c3-190a6479c000/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:55:14,295 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:55:14,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:55:14,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1877836691, now seen corresponding path program 4 times [2024-11-24 01:55:14,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:55:14,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619847842] [2024-11-24 01:55:14,296 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-24 01:55:14,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:55:14,329 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-24 01:55:14,329 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:55:15,859 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 8 proven. 35 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-24 01:55:15,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:55:15,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619847842] [2024-11-24 01:55:15,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619847842] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:55:15,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152599919] [2024-11-24 01:55:15,861 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-24 01:55:15,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:55:15,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f3bc53-ddf8-404e-a7c3-190a6479c000/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:55:15,864 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f3bc53-ddf8-404e-a7c3-190a6479c000/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:55:15,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f3bc53-ddf8-404e-a7c3-190a6479c000/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 01:55:16,096 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-24 01:55:16,096 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:55:16,104 INFO L256 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 87 conjuncts are in the unsatisfiable core [2024-11-24 01:55:16,109 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:55:16,127 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 11 treesize of output 7 [2024-11-24 01:55:16,672 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-24 01:55:16,672 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:56:00,115 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:56:00,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152599919] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:56:00,116 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:56:00,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 26] total 47 [2024-11-24 01:56:00,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379641567] [2024-11-24 01:56:00,116 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:56:00,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-11-24 01:56:00,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:56:00,118 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-11-24 01:56:00,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=218, Invalid=1934, Unknown=10, NotChecked=0, Total=2162 [2024-11-24 01:56:00,119 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand has 47 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 40 states have internal predecessors, (49), 12 states have call successors, (13), 8 states have call predecessors, (13), 18 states have return successors, (18), 16 states have call predecessors, (18), 11 states have call successors, (18) [2024-11-24 01:56:04,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:56:08,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:56:12,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:56:16,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:56:20,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:56:24,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:56:28,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:56:32,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:57:08,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:57:12,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:57:16,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:57:20,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:57:24,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:57:28,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:57:32,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:57:36,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:57:40,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:57:44,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:57:48,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:57:52,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:57:56,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:58:00,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:58:04,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:58:08,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:58:12,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:58:52,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:58:56,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:59:00,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:59:04,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:59:08,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:59:12,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:59:16,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:59:20,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:59:24,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:59:28,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:59:32,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:59:36,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:59:40,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:59:44,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:59:48,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:00:17,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:00:21,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:00:25,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:00:29,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:00:33,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:00:37,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:00:41,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:00:45,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:00:49,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:01:05,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:01:09,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:01:13,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:01:14,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:14,210 INFO L93 Difference]: Finished difference Result 78 states and 88 transitions. [2024-11-24 02:01:14,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 02:01:14,211 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 40 states have internal predecessors, (49), 12 states have call successors, (13), 8 states have call predecessors, (13), 18 states have return successors, (18), 16 states have call predecessors, (18), 11 states have call successors, (18) Word has length 41 [2024-11-24 02:01:14,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:14,212 INFO L225 Difference]: With dead ends: 78 [2024-11-24 02:01:14,213 INFO L226 Difference]: Without dead ends: 53 [2024-11-24 02:01:14,214 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 904 ImplicationChecksByTransitivity, 146.5s TimeCoverageRelationStatistics Valid=323, Invalid=2611, Unknown=36, NotChecked=0, Total=2970 [2024-11-24 02:01:14,215 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 44 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 27 mSolverCounterUnsat, 52 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 209.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 52 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 209.3s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:14,215 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 260 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 700 Invalid, 52 Unknown, 0 Unchecked, 209.3s Time] [2024-11-24 02:01:14,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-11-24 02:01:14,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 47. [2024-11-24 02:01:14,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 29 states have (on average 1.103448275862069) internal successors, (32), 30 states have internal predecessors, (32), 8 states have call successors, (8), 6 states have call predecessors, (8), 9 states have return successors, (11), 10 states have call predecessors, (11), 6 states have call successors, (11) [2024-11-24 02:01:14,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2024-11-24 02:01:14,232 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 41 [2024-11-24 02:01:14,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:14,233 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2024-11-24 02:01:14,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 40 states have internal predecessors, (49), 12 states have call successors, (13), 8 states have call predecessors, (13), 18 states have return successors, (18), 16 states have call predecessors, (18), 11 states have call successors, (18) [2024-11-24 02:01:14,233 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2024-11-24 02:01:14,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-24 02:01:14,234 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:14,235 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:14,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f3bc53-ddf8-404e-a7c3-190a6479c000/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-24 02:01:14,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f3bc53-ddf8-404e-a7c3-190a6479c000/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:01:14,435 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:14,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:14,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1970034039, now seen corresponding path program 5 times [2024-11-24 02:01:14,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:14,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333485465] [2024-11-24 02:01:14,436 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-24 02:01:14,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:14,771 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2024-11-24 02:01:14,771 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 02:01:17,402 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 19 proven. 64 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-24 02:01:17,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:17,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333485465] [2024-11-24 02:01:17,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333485465] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:01:17,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214948992] [2024-11-24 02:01:17,403 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-24 02:01:17,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:01:17,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f3bc53-ddf8-404e-a7c3-190a6479c000/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:01:17,406 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f3bc53-ddf8-404e-a7c3-190a6479c000/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:01:17,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f3bc53-ddf8-404e-a7c3-190a6479c000/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 02:01:20,182 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2024-11-24 02:01:20,183 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 02:01:20,189 INFO L256 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 115 conjuncts are in the unsatisfiable core [2024-11-24 02:01:20,197 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:01:20,203 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 11 treesize of output 7 [2024-11-24 02:01:21,208 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-24 02:01:21,208 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:02:53,531 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 02:02:53,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214948992] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 02:02:53,531 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 02:02:53,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 15, 34] total 60 [2024-11-24 02:02:53,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809104109] [2024-11-24 02:02:53,531 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 02:02:53,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2024-11-24 02:02:53,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:02:53,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2024-11-24 02:02:53,534 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=3213, Unknown=21, NotChecked=0, Total=3540 [2024-11-24 02:02:53,535 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand has 60 states, 47 states have (on average 1.297872340425532) internal successors, (61), 51 states have internal predecessors, (61), 14 states have call successors, (15), 10 states have call predecessors, (15), 24 states have return successors, (24), 22 states have call predecessors, (24), 13 states have call successors, (24) [2024-11-24 02:02:57,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:03:01,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:03:05,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:03:09,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:03:13,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:03:17,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:03:21,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:03:25,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:03:29,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:03:33,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:03:37,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:03:41,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:04:33,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:04:37,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:04:42,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:04:46,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:04:50,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:04:54,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:04:58,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:05:02,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:05:06,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:05:10,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:05:14,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:05:18,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:05:22,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:05:26,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:05:30,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:05:34,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:05:38,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:05:42,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:05:46,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:05:50,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:05:54,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:05:58,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:06:02,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:06:06,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:06:10,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:06:14,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:06:18,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:07:22,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:07:26,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:07:30,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:07:34,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:07:38,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:07:42,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:07:46,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:07:50,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:07:54,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:07:58,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:08:02,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:08:06,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:08:10,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:08:14,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:08:18,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:08:22,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:08:26,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:08:30,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:08:34,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:08:38,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:08:42,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:08:46,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:08:50,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:08:54,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:08:58,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:09:02,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:09:06,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []