./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-43.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_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/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_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-43.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/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_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/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 5d359503c0f6b7fead1204dfe760bfe51225f7e05671bbe3e92f7a9f7a51757d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:55:21,528 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:55:21,637 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 01:55:21,644 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:55:21,648 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:55:21,690 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:55:21,693 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:55:21,694 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:55:21,695 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:55:21,695 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:55:21,695 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:55:21,697 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:55:21,697 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:55:21,698 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:55:21,698 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:55:21,698 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:55:21,698 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:55:21,698 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:55:21,698 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:55:21,698 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:55:21,699 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:55:21,699 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:55:21,699 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:55:21,699 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:55:21,699 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:55:21,699 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:55:21,700 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:55:21,700 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:55:21,700 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:55:21,700 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:55:21,701 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:55:21,701 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:55:21,701 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:55:21,701 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:55:21,702 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:55:21,702 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:55:21,702 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:55:21,703 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:55:21,703 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:55:21,703 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:55:21,703 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:55:21,703 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:55:21,703 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:55:21,703 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:55:21,704 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:55:21,704 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:55:21,704 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:55:21,704 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:55:21,704 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_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/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 -> 5d359503c0f6b7fead1204dfe760bfe51225f7e05671bbe3e92f7a9f7a51757d [2024-11-24 01:55:22,091 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:55:22,105 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:55:22,110 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:55:22,111 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:55:22,112 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:55:22,115 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-43.i [2024-11-24 01:55:25,882 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/data/ae4b2e24f/67d9f49e2975448eae2993bc6a30f833/FLAGdd425b449 [2024-11-24 01:55:26,207 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:55:26,208 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-43.i [2024-11-24 01:55:26,220 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/data/ae4b2e24f/67d9f49e2975448eae2993bc6a30f833/FLAGdd425b449 [2024-11-24 01:55:26,240 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/data/ae4b2e24f/67d9f49e2975448eae2993bc6a30f833 [2024-11-24 01:55:26,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:55:26,245 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:55:26,247 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:55:26,247 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:55:26,253 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:55:26,255 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:55:26" (1/1) ... [2024-11-24 01:55:26,256 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f1bbb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:55:26, skipping insertion in model container [2024-11-24 01:55:26,256 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:55:26" (1/1) ... [2024-11-24 01:55:26,280 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:55:26,486 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_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-43.i[916,929] [2024-11-24 01:55:26,597 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:55:26,612 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:55:26,626 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_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-43.i[916,929] [2024-11-24 01:55:26,739 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:55:26,776 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:55:26,777 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:55:26 WrapperNode [2024-11-24 01:55:26,778 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:55:26,780 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:55:26,780 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:55:26,781 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:55:26,790 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:55:26" (1/1) ... [2024-11-24 01:55:26,816 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:55:26" (1/1) ... [2024-11-24 01:55:26,897 INFO L138 Inliner]: procedures = 29, calls = 181, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 548 [2024-11-24 01:55:26,904 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:55:26,905 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:55:26,905 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:55:26,905 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:55:26,919 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:55:26" (1/1) ... [2024-11-24 01:55:26,920 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:55:26" (1/1) ... [2024-11-24 01:55:26,932 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:55:26" (1/1) ... [2024-11-24 01:55:26,979 INFO L175 MemorySlicer]: Split 144 memory accesses to 7 slices as follows [2, 13, 38, 15, 37, 27, 12]. 26 percent of accesses are in the largest equivalence class. The 20 initializations are split as follows [2, 2, 4, 2, 5, 2, 3]. The 21 writes are split as follows [0, 2, 4, 2, 7, 3, 3]. [2024-11-24 01:55:26,979 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:55:26" (1/1) ... [2024-11-24 01:55:26,980 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:55:26" (1/1) ... [2024-11-24 01:55:27,009 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:55:26" (1/1) ... [2024-11-24 01:55:27,011 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:55:26" (1/1) ... [2024-11-24 01:55:27,021 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:55:26" (1/1) ... [2024-11-24 01:55:27,029 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:55:26" (1/1) ... [2024-11-24 01:55:27,035 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:55:26" (1/1) ... [2024-11-24 01:55:27,047 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:55:27,050 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:55:27,052 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:55:27,052 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:55:27,053 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:55:26" (1/1) ... [2024-11-24 01:55:27,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:55:27,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:55:27,107 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:55:27,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:55:27,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:55:27,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-24 01:55:27,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-24 01:55:27,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-24 01:55:27,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-24 01:55:27,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-24 01:55:27,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-24 01:55:27,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-24 01:55:27,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 01:55:27,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 01:55:27,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-24 01:55:27,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-24 01:55:27,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-24 01:55:27,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-24 01:55:27,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-24 01:55:27,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-24 01:55:27,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-24 01:55:27,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-24 01:55:27,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-24 01:55:27,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-24 01:55:27,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-24 01:55:27,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-11-24 01:55:27,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 01:55:27,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 01:55:27,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-24 01:55:27,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-24 01:55:27,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-24 01:55:27,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-24 01:55:27,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-24 01:55:27,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-24 01:55:27,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-24 01:55:27,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-24 01:55:27,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-24 01:55:27,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-24 01:55:27,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-11-24 01:55:27,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-11-24 01:55:27,152 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:55:27,152 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:55:27,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:55:27,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 01:55:27,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 01:55:27,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-24 01:55:27,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-24 01:55:27,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-24 01:55:27,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-24 01:55:27,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:55:27,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:55:27,426 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:55:27,429 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:55:28,462 INFO L? ?]: Removed 133 outVars from TransFormulas that were not future-live. [2024-11-24 01:55:28,462 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:55:28,485 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:55:28,485 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 01:55:28,486 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:55:28 BoogieIcfgContainer [2024-11-24 01:55:28,486 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:55:28,489 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:55:28,489 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:55:28,496 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:55:28,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:55:26" (1/3) ... [2024-11-24 01:55:28,497 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f07a068 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:55:28, skipping insertion in model container [2024-11-24 01:55:28,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:55:26" (2/3) ... [2024-11-24 01:55:28,498 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f07a068 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:55:28, skipping insertion in model container [2024-11-24 01:55:28,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:55:28" (3/3) ... [2024-11-24 01:55:28,501 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-43.i [2024-11-24 01:55:28,523 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:55:28,525 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-43.i that has 2 procedures, 126 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 01:55:28,631 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:55:28,651 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;@2574725d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:55:28,651 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:55:28,657 INFO L276 IsEmpty]: Start isEmpty. Operand has 126 states, 103 states have (on average 1.4271844660194175) internal successors, (147), 104 states have internal predecessors, (147), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 01:55:28,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-24 01:55:28,681 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:55:28,682 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:55:28,682 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:55:28,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:55:28,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1971381189, now seen corresponding path program 1 times [2024-11-24 01:55:28,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:55:28,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965166633] [2024-11-24 01:55:28,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:55:28,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:55:28,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:55:29,185 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2024-11-24 01:55:29,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:55:29,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965166633] [2024-11-24 01:55:29,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965166633] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:55:29,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772199942] [2024-11-24 01:55:29,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:55:29,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:55:29,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:55:29,190 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:55:29,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:55:29,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:55:29,633 INFO L256 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 01:55:29,646 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:55:29,690 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2024-11-24 01:55:29,690 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:55:29,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [772199942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:55:29,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:55:29,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 01:55:29,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957731293] [2024-11-24 01:55:29,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:55:29,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:55:29,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:55:29,723 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:55:29,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:55:29,727 INFO L87 Difference]: Start difference. First operand has 126 states, 103 states have (on average 1.4271844660194175) internal successors, (147), 104 states have internal predecessors, (147), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 01:55:29,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:55:29,758 INFO L93 Difference]: Finished difference Result 245 states and 388 transitions. [2024-11-24 01:55:29,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:55:29,761 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 168 [2024-11-24 01:55:29,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:55:29,768 INFO L225 Difference]: With dead ends: 245 [2024-11-24 01:55:29,768 INFO L226 Difference]: Without dead ends: 122 [2024-11-24 01:55:29,771 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:55:29,774 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:55:29,775 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:55:29,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-24 01:55:29,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2024-11-24 01:55:29,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 100 states have (on average 1.4) internal successors, (140), 100 states have internal predecessors, (140), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 01:55:29,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 180 transitions. [2024-11-24 01:55:29,823 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 180 transitions. Word has length 168 [2024-11-24 01:55:29,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:55:29,824 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 180 transitions. [2024-11-24 01:55:29,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 01:55:29,824 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 180 transitions. [2024-11-24 01:55:29,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-24 01:55:29,828 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:55:29,828 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:55:29,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-24 01:55:30,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 01:55:30,029 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:55:30,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:55:30,034 INFO L85 PathProgramCache]: Analyzing trace with hash 568609381, now seen corresponding path program 1 times [2024-11-24 01:55:30,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:55:30,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715072932] [2024-11-24 01:55:30,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:55:30,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:55:30,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:55:30,583 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:55:30,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:55:30,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715072932] [2024-11-24 01:55:30,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715072932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:55:30,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:55:30,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:55:30,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049928471] [2024-11-24 01:55:30,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:55:30,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:55:30,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:55:30,593 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:55:30,593 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:55:30,593 INFO L87 Difference]: Start difference. First operand 122 states and 180 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 01:55:30,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:55:30,678 INFO L93 Difference]: Finished difference Result 243 states and 360 transitions. [2024-11-24 01:55:30,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:55:30,679 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 168 [2024-11-24 01:55:30,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:55:30,681 INFO L225 Difference]: With dead ends: 243 [2024-11-24 01:55:30,681 INFO L226 Difference]: Without dead ends: 124 [2024-11-24 01:55:30,681 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:55:30,684 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 0 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:55:30,689 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 523 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:55:30,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-11-24 01:55:30,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2024-11-24 01:55:30,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 102 states have (on average 1.392156862745098) internal successors, (142), 102 states have internal predecessors, (142), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 01:55:30,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 182 transitions. [2024-11-24 01:55:30,710 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 182 transitions. Word has length 168 [2024-11-24 01:55:30,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:55:30,711 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 182 transitions. [2024-11-24 01:55:30,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 01:55:30,712 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 182 transitions. [2024-11-24 01:55:30,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-24 01:55:30,714 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:55:30,714 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:55:30,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:55:30,714 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:55:30,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:55:30,719 INFO L85 PathProgramCache]: Analyzing trace with hash -877971485, now seen corresponding path program 1 times [2024-11-24 01:55:30,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:55:30,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901250721] [2024-11-24 01:55:30,719 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:55:30,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:55:30,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:55:31,171 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:55:31,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:55:31,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901250721] [2024-11-24 01:55:31,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901250721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:55:31,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:55:31,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:55:31,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527991055] [2024-11-24 01:55:31,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:55:31,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:55:31,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:55:31,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:55:31,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:55:31,176 INFO L87 Difference]: Start difference. First operand 124 states and 182 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:55:31,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:55:31,240 INFO L93 Difference]: Finished difference Result 248 states and 365 transitions. [2024-11-24 01:55:31,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:55:31,241 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 168 [2024-11-24 01:55:31,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:55:31,243 INFO L225 Difference]: With dead ends: 248 [2024-11-24 01:55:31,243 INFO L226 Difference]: Without dead ends: 127 [2024-11-24 01:55:31,246 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:55:31,247 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 1 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:55:31,250 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 520 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:55:31,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-24 01:55:31,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 126. [2024-11-24 01:55:31,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 104 states have (on average 1.3846153846153846) internal successors, (144), 104 states have internal predecessors, (144), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 01:55:31,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 184 transitions. [2024-11-24 01:55:31,269 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 184 transitions. Word has length 168 [2024-11-24 01:55:31,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:55:31,271 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 184 transitions. [2024-11-24 01:55:31,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:55:31,272 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 184 transitions. [2024-11-24 01:55:31,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-24 01:55:31,279 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:55:31,279 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:55:31,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:55:31,280 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:55:31,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:55:31,280 INFO L85 PathProgramCache]: Analyzing trace with hash -197913115, now seen corresponding path program 1 times [2024-11-24 01:55:31,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:55:31,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933715226] [2024-11-24 01:55:31,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:55:31,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:55:31,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:55:31,624 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:55:31,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:55:31,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933715226] [2024-11-24 01:55:31,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933715226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:55:31,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:55:31,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:55:31,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037231685] [2024-11-24 01:55:31,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:55:31,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:55:31,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:55:31,627 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:55:31,627 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:55:31,628 INFO L87 Difference]: Start difference. First operand 126 states and 184 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:55:31,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:55:31,678 INFO L93 Difference]: Finished difference Result 252 states and 369 transitions. [2024-11-24 01:55:31,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:55:31,678 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 168 [2024-11-24 01:55:31,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:55:31,681 INFO L225 Difference]: With dead ends: 252 [2024-11-24 01:55:31,684 INFO L226 Difference]: Without dead ends: 129 [2024-11-24 01:55:31,685 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:55:31,685 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 1 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:55:31,686 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 521 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:55:31,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-24 01:55:31,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 128. [2024-11-24 01:55:31,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 106 states have (on average 1.3773584905660377) internal successors, (146), 106 states have internal predecessors, (146), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 01:55:31,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 186 transitions. [2024-11-24 01:55:31,706 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 186 transitions. Word has length 168 [2024-11-24 01:55:31,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:55:31,709 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 186 transitions. [2024-11-24 01:55:31,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:55:31,710 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 186 transitions. [2024-11-24 01:55:31,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-24 01:55:31,714 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:55:31,715 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:55:31,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:55:31,715 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:55:31,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:55:31,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1577094247, now seen corresponding path program 1 times [2024-11-24 01:55:31,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:55:31,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181130205] [2024-11-24 01:55:31,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:55:31,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:55:31,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:55:32,427 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 42 proven. 15 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-24 01:55:32,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:55:32,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181130205] [2024-11-24 01:55:32,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181130205] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:55:32,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175910615] [2024-11-24 01:55:32,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:55:32,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:55:32,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:55:32,435 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:55:32,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:55:32,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:55:32,826 INFO L256 TraceCheckSpWp]: Trace formula consists of 594 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 01:55:32,837 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:55:33,048 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 19 treesize of output 7 [2024-11-24 01:55:33,069 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 327 proven. 15 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked. [2024-11-24 01:55:33,072 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:55:33,453 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 42 proven. 15 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-24 01:55:33,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [175910615] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:55:33,454 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:55:33,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-11-24 01:55:33,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710836493] [2024-11-24 01:55:33,455 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:55:33,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 01:55:33,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:55:33,458 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 01:55:33,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:55:33,459 INFO L87 Difference]: Start difference. First operand 128 states and 186 transitions. Second operand has 15 states, 12 states have (on average 8.666666666666666) internal successors, (104), 15 states have internal predecessors, (104), 7 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (32), 4 states have call predecessors, (32), 7 states have call successors, (32) [2024-11-24 01:55:34,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:55:34,047 INFO L93 Difference]: Finished difference Result 259 states and 374 transitions. [2024-11-24 01:55:34,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 01:55:34,048 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 8.666666666666666) internal successors, (104), 15 states have internal predecessors, (104), 7 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (32), 4 states have call predecessors, (32), 7 states have call successors, (32) Word has length 168 [2024-11-24 01:55:34,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:55:34,050 INFO L225 Difference]: With dead ends: 259 [2024-11-24 01:55:34,050 INFO L226 Difference]: Without dead ends: 134 [2024-11-24 01:55:34,051 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2024-11-24 01:55:34,051 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 259 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:55:34,052 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 704 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:55:34,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-11-24 01:55:34,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 132. [2024-11-24 01:55:34,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 109 states have (on average 1.3577981651376148) internal successors, (148), 109 states have internal predecessors, (148), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 01:55:34,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 188 transitions. [2024-11-24 01:55:34,065 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 188 transitions. Word has length 168 [2024-11-24 01:55:34,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:55:34,065 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 188 transitions. [2024-11-24 01:55:34,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 8.666666666666666) internal successors, (104), 15 states have internal predecessors, (104), 7 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (32), 4 states have call predecessors, (32), 7 states have call successors, (32) [2024-11-24 01:55:34,066 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 188 transitions. [2024-11-24 01:55:34,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-24 01:55:34,067 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:55:34,068 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:55:34,079 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 01:55:34,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:55:34,268 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:55:34,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:55:34,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1381362878, now seen corresponding path program 1 times [2024-11-24 01:55:34,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:55:34,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769001523] [2024-11-24 01:55:34,269 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:55:34,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:55:34,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:55:35,571 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 3 proven. 54 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-24 01:55:35,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:55:35,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769001523] [2024-11-24 01:55:35,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769001523] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:55:35,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719135494] [2024-11-24 01:55:35,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:55:35,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:55:35,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:55:35,574 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:55:35,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:55:35,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:55:35,908 INFO L256 TraceCheckSpWp]: Trace formula consists of 595 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-24 01:55:35,916 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:55:36,097 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 19 treesize of output 7 [2024-11-24 01:55:36,170 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 327 proven. 15 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked. [2024-11-24 01:55:36,170 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:55:36,592 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 42 proven. 15 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-24 01:55:36,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719135494] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:55:36,593 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:55:36,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 20 [2024-11-24 01:55:36,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310796323] [2024-11-24 01:55:36,593 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:55:36,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-24 01:55:36,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:55:36,595 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-24 01:55:36,595 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2024-11-24 01:55:36,595 INFO L87 Difference]: Start difference. First operand 132 states and 188 transitions. Second operand has 20 states, 17 states have (on average 8.235294117647058) internal successors, (140), 20 states have internal predecessors, (140), 7 states have call successors, (45), 2 states have call predecessors, (45), 4 states have return successors, (45), 4 states have call predecessors, (45), 7 states have call successors, (45) [2024-11-24 01:55:37,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:55:37,847 INFO L93 Difference]: Finished difference Result 271 states and 383 transitions. [2024-11-24 01:55:37,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-24 01:55:37,848 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 8.235294117647058) internal successors, (140), 20 states have internal predecessors, (140), 7 states have call successors, (45), 2 states have call predecessors, (45), 4 states have return successors, (45), 4 states have call predecessors, (45), 7 states have call successors, (45) Word has length 169 [2024-11-24 01:55:37,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:55:37,849 INFO L225 Difference]: With dead ends: 271 [2024-11-24 01:55:37,850 INFO L226 Difference]: Without dead ends: 142 [2024-11-24 01:55:37,851 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=274, Invalid=1208, Unknown=0, NotChecked=0, Total=1482 [2024-11-24 01:55:37,855 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 366 mSDsluCounter, 1019 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 1142 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:55:37,856 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 1142 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 01:55:37,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-24 01:55:37,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 138. [2024-11-24 01:55:37,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 114 states have (on average 1.3333333333333333) internal successors, (152), 114 states have internal predecessors, (152), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 01:55:37,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 192 transitions. [2024-11-24 01:55:37,885 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 192 transitions. Word has length 169 [2024-11-24 01:55:37,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:55:37,885 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 192 transitions. [2024-11-24 01:55:37,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 8.235294117647058) internal successors, (140), 20 states have internal predecessors, (140), 7 states have call successors, (45), 2 states have call predecessors, (45), 4 states have return successors, (45), 4 states have call predecessors, (45), 7 states have call successors, (45) [2024-11-24 01:55:37,886 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 192 transitions. [2024-11-24 01:55:37,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-24 01:55:37,891 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:55:37,891 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:55:37,901 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 01:55:38,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:55:38,091 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:55:38,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:55:38,092 INFO L85 PathProgramCache]: Analyzing trace with hash -818112442, now seen corresponding path program 1 times [2024-11-24 01:55:38,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:55:38,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960244289] [2024-11-24 01:55:38,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:55:38,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:55:38,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:55:38,500 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:55:38,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:55:38,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960244289] [2024-11-24 01:55:38,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960244289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:55:38,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:55:38,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:55:38,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617405149] [2024-11-24 01:55:38,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:55:38,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:55:38,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:55:38,502 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:55:38,502 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:55:38,502 INFO L87 Difference]: Start difference. First operand 138 states and 192 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:55:38,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:55:38,691 INFO L93 Difference]: Finished difference Result 390 states and 543 transitions. [2024-11-24 01:55:38,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:55:38,692 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 169 [2024-11-24 01:55:38,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:55:38,695 INFO L225 Difference]: With dead ends: 390 [2024-11-24 01:55:38,699 INFO L226 Difference]: Without dead ends: 255 [2024-11-24 01:55:38,699 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:55:38,700 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 146 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:55:38,700 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 628 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:55:38,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-11-24 01:55:38,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 143. [2024-11-24 01:55:38,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 119 states have (on average 1.3361344537815125) internal successors, (159), 119 states have internal predecessors, (159), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 01:55:38,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 199 transitions. [2024-11-24 01:55:38,730 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 199 transitions. Word has length 169 [2024-11-24 01:55:38,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:55:38,730 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 199 transitions. [2024-11-24 01:55:38,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:55:38,731 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 199 transitions. [2024-11-24 01:55:38,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-24 01:55:38,734 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:55:38,734 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:55:38,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 01:55:38,735 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:55:38,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:55:38,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1839180796, now seen corresponding path program 1 times [2024-11-24 01:55:38,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:55:38,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519018677] [2024-11-24 01:55:38,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:55:38,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:55:38,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:55:39,057 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-24 01:55:39,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:55:39,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519018677] [2024-11-24 01:55:39,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519018677] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:55:39,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274103238] [2024-11-24 01:55:39,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:55:39,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:55:39,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:55:39,060 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:55:39,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 01:55:39,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:55:39,364 INFO L256 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:55:39,369 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:55:39,414 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:55:39,414 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:55:39,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274103238] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:55:39,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:55:39,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2024-11-24 01:55:39,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800999341] [2024-11-24 01:55:39,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:55:39,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:55:39,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:55:39,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:55:39,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:55:39,416 INFO L87 Difference]: Start difference. First operand 143 states and 199 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:55:39,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:55:39,459 INFO L93 Difference]: Finished difference Result 286 states and 399 transitions. [2024-11-24 01:55:39,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:55:39,460 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 169 [2024-11-24 01:55:39,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:55:39,461 INFO L225 Difference]: With dead ends: 286 [2024-11-24 01:55:39,461 INFO L226 Difference]: Without dead ends: 146 [2024-11-24 01:55:39,462 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:55:39,462 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 0 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:55:39,463 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 685 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:55:39,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-24 01:55:39,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2024-11-24 01:55:39,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 122 states have (on average 1.3278688524590163) internal successors, (162), 122 states have internal predecessors, (162), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 01:55:39,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 202 transitions. [2024-11-24 01:55:39,477 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 202 transitions. Word has length 169 [2024-11-24 01:55:39,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:55:39,477 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 202 transitions. [2024-11-24 01:55:39,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:55:39,477 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 202 transitions. [2024-11-24 01:55:39,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-24 01:55:39,479 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:55:39,479 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:55:39,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-24 01:55:39,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:55:39,683 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:55:39,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:55:39,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1140002961, now seen corresponding path program 1 times [2024-11-24 01:55:39,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:55:39,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036203728] [2024-11-24 01:55:39,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:55:39,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:55:39,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:55:40,138 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:55:40,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:55:40,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036203728] [2024-11-24 01:55:40,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036203728] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:55:40,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:55:40,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:55:40,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814613532] [2024-11-24 01:55:40,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:55:40,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:55:40,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:55:40,140 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:55:40,140 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:55:40,141 INFO L87 Difference]: Start difference. First operand 146 states and 202 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:55:40,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:55:40,357 INFO L93 Difference]: Finished difference Result 403 states and 557 transitions. [2024-11-24 01:55:40,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:55:40,358 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 169 [2024-11-24 01:55:40,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:55:40,360 INFO L225 Difference]: With dead ends: 403 [2024-11-24 01:55:40,360 INFO L226 Difference]: Without dead ends: 260 [2024-11-24 01:55:40,360 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:55:40,361 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 145 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:55:40,361 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 628 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:55:40,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2024-11-24 01:55:40,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 147. [2024-11-24 01:55:40,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 123 states have (on average 1.3252032520325203) internal successors, (163), 123 states have internal predecessors, (163), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 01:55:40,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 203 transitions. [2024-11-24 01:55:40,387 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 203 transitions. Word has length 169 [2024-11-24 01:55:40,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:55:40,387 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 203 transitions. [2024-11-24 01:55:40,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:55:40,388 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 203 transitions. [2024-11-24 01:55:40,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-24 01:55:40,390 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:55:40,391 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:55:40,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 01:55:40,391 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:55:40,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:55:40,391 INFO L85 PathProgramCache]: Analyzing trace with hash 2133895981, now seen corresponding path program 1 times [2024-11-24 01:55:40,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:55:40,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961607867] [2024-11-24 01:55:40,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:55:40,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:55:40,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:55:40,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2064175748] [2024-11-24 01:55:40,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:55:40,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:55:40,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:55:40,593 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:55:40,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 01:55:41,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:55:41,162 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 01:55:41,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:55:41,752 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 01:55:41,753 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 01:55:41,754 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 01:55:41,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-24 01:55:41,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:55:41,959 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:55:42,099 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 01:55:42,107 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 01:55:42 BoogieIcfgContainer [2024-11-24 01:55:42,107 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 01:55:42,108 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 01:55:42,108 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 01:55:42,108 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 01:55:42,110 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:55:28" (3/4) ... [2024-11-24 01:55:42,112 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 01:55:42,113 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 01:55:42,114 INFO L158 Benchmark]: Toolchain (without parser) took 15868.90ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 92.0MB in the beginning and 128.5MB in the end (delta: -36.5MB). Peak memory consumption was 64.2MB. Max. memory is 16.1GB. [2024-11-24 01:55:42,115 INFO L158 Benchmark]: CDTParser took 1.09ms. Allocated memory is still 117.4MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:55:42,116 INFO L158 Benchmark]: CACSL2BoogieTranslator took 532.18ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 76.2MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 01:55:42,116 INFO L158 Benchmark]: Boogie Procedure Inliner took 124.32ms. Allocated memory is still 117.4MB. Free memory was 76.2MB in the beginning and 72.0MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:55:42,116 INFO L158 Benchmark]: Boogie Preprocessor took 143.98ms. Allocated memory is still 117.4MB. Free memory was 72.0MB in the beginning and 66.6MB in the end (delta: 5.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:55:42,117 INFO L158 Benchmark]: RCFGBuilder took 1435.74ms. Allocated memory is still 117.4MB. Free memory was 66.6MB in the beginning and 82.6MB in the end (delta: -16.0MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. [2024-11-24 01:55:42,117 INFO L158 Benchmark]: TraceAbstraction took 13618.65ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 82.1MB in the beginning and 130.8MB in the end (delta: -48.8MB). Peak memory consumption was 57.4MB. Max. memory is 16.1GB. [2024-11-24 01:55:42,117 INFO L158 Benchmark]: Witness Printer took 5.03ms. Allocated memory is still 218.1MB. Free memory was 130.8MB in the beginning and 128.5MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:55:42,119 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.09ms. Allocated memory is still 117.4MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 532.18ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 76.2MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 124.32ms. Allocated memory is still 117.4MB. Free memory was 76.2MB in the beginning and 72.0MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 143.98ms. Allocated memory is still 117.4MB. Free memory was 72.0MB in the beginning and 66.6MB in the end (delta: 5.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1435.74ms. Allocated memory is still 117.4MB. Free memory was 66.6MB in the beginning and 82.6MB in the end (delta: -16.0MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. * TraceAbstraction took 13618.65ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 82.1MB in the beginning and 130.8MB in the end (delta: -48.8MB). Peak memory consumption was 57.4MB. Max. memory is 16.1GB. * Witness Printer took 5.03ms. Allocated memory is still 218.1MB. Free memory was 130.8MB in the beginning and 128.5MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 76, overapproximation of someBinaryFLOATComparisonOperation at line 80, overapproximation of someBinaryFLOATComparisonOperation at line 58, overapproximation of someBinaryFLOATComparisonOperation at line 78, overapproximation of someBinaryFLOATComparisonOperation at line 82, overapproximation of someBinaryFLOATComparisonOperation at line 78, overapproximation of someBinaryFLOATComparisonOperation at line 108, overapproximation of someBinaryFLOATComparisonOperation at line 58, overapproximation of someBinaryFLOATComparisonOperation at line 80, overapproximation of someBinaryFLOATComparisonOperation at line 82, overapproximation of someBinaryFLOATComparisonOperation at line 76, overapproximation of someBinaryFLOATComparisonOperation at line 108. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2] = { 0, 0 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2] = { 0, 0 }; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2] = { 0, 0 }; [L25-L27] float float_Array_0[2][2] = { {0.2, 64.8}, {64.4, 4.5} }; [L25-L27] float float_Array_0[2][2] = { {0.2, 64.8}, {64.4, 4.5} }; [L25-L27] float float_Array_0[2][2] = { {0.2, 64.8}, {64.4, 4.5} }; [L25-L27] float float_Array_0[2][2] = { {0.2, 64.8}, {64.4, 4.5} }; [L25-L27] float float_Array_0[2][2] = { {0.2, 64.8}, {64.4, 4.5} }; [L28-L30] signed char signed_char_Array_0[2] = { 0, -50 }; [L28-L30] signed char signed_char_Array_0[2] = { 0, -50 }; [L28-L30] signed char signed_char_Array_0[2] = { 0, -50 }; [L31-L33] signed short int signed_short_int_Array_0[5] = { 50, 1, 8, 10000, 64 }; [L31-L33] signed short int signed_short_int_Array_0[5] = { 50, 1, 8, 10000, 64 }; [L31-L33] signed short int signed_short_int_Array_0[5] = { 50, 1, 8, 10000, 64 }; [L31-L33] signed short int signed_short_int_Array_0[5] = { 50, 1, 8, 10000, 64 }; [L31-L33] signed short int signed_short_int_Array_0[5] = { 50, 1, 8, 10000, 64 }; [L31-L33] signed short int signed_short_int_Array_0[5] = { 50, 1, 8, 10000, 64 }; [L34-L36] unsigned char unsigned_char_Array_0[2] = { 2, 100 }; [L34-L36] unsigned char unsigned_char_Array_0[2] = { 2, 100 }; [L34-L36] unsigned char unsigned_char_Array_0[2] = { 2, 100 }; [L37-L39] unsigned short int unsigned_short_int_Array_0[3] = { 23647, 32, 128 }; [L37-L39] unsigned short int unsigned_short_int_Array_0[3] = { 23647, 32, 128 }; [L37-L39] unsigned short int unsigned_short_int_Array_0[3] = { 23647, 32, 128 }; [L37-L39] unsigned short int unsigned_short_int_Array_0[3] = { 23647, 32, 128 }; VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=0, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L112] isInitial = 1 [L113] FCALL initially() [L115] FCALL updateLastVariables() [L116] CALL updateVariables() [L72] BOOL_unsigned_char_Array_0[1] = __VERIFIER_nondet_uchar() [L73] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L73] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L73] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L74] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L74] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L74] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L75] float_Array_0[0][0] = __VERIFIER_nondet_float() [L76] EXPR float_Array_0[0][0] [L76] EXPR float_Array_0[0][0] >= 0.0F && float_Array_0[0][0] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L76] EXPR float_Array_0[0][0] >= 0.0F && float_Array_0[0][0] <= -1.0e-20F [L76] EXPR float_Array_0[0][0] [L76] EXPR float_Array_0[0][0] >= 0.0F && float_Array_0[0][0] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L76] EXPR (float_Array_0[0][0] >= 0.0F && float_Array_0[0][0] <= -1.0e-20F) || (float_Array_0[0][0] <= 9223372.036854776000e+12F && float_Array_0[0][0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L76] EXPR (float_Array_0[0][0] >= 0.0F && float_Array_0[0][0] <= -1.0e-20F) || (float_Array_0[0][0] <= 9223372.036854776000e+12F && float_Array_0[0][0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L76] CALL assume_abort_if_not((float_Array_0[0][0] >= 0.0F && float_Array_0[0][0] <= -1.0e-20F) || (float_Array_0[0][0] <= 9223372.036854776000e+12F && float_Array_0[0][0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L76] RET assume_abort_if_not((float_Array_0[0][0] >= 0.0F && float_Array_0[0][0] <= -1.0e-20F) || (float_Array_0[0][0] <= 9223372.036854776000e+12F && float_Array_0[0][0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L77] float_Array_0[1][0] = __VERIFIER_nondet_float() [L78] EXPR float_Array_0[1][0] [L78] EXPR float_Array_0[1][0] >= 0.0F && float_Array_0[1][0] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L78] EXPR float_Array_0[1][0] >= 0.0F && float_Array_0[1][0] <= -1.0e-20F [L78] EXPR float_Array_0[1][0] [L78] EXPR float_Array_0[1][0] >= 0.0F && float_Array_0[1][0] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L78] EXPR (float_Array_0[1][0] >= 0.0F && float_Array_0[1][0] <= -1.0e-20F) || (float_Array_0[1][0] <= 9223372.036854776000e+12F && float_Array_0[1][0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L78] EXPR (float_Array_0[1][0] >= 0.0F && float_Array_0[1][0] <= -1.0e-20F) || (float_Array_0[1][0] <= 9223372.036854776000e+12F && float_Array_0[1][0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L78] CALL assume_abort_if_not((float_Array_0[1][0] >= 0.0F && float_Array_0[1][0] <= -1.0e-20F) || (float_Array_0[1][0] <= 9223372.036854776000e+12F && float_Array_0[1][0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L78] RET assume_abort_if_not((float_Array_0[1][0] >= 0.0F && float_Array_0[1][0] <= -1.0e-20F) || (float_Array_0[1][0] <= 9223372.036854776000e+12F && float_Array_0[1][0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L79] float_Array_0[0][1] = __VERIFIER_nondet_float() [L80] EXPR float_Array_0[0][1] [L80] EXPR float_Array_0[0][1] >= -922337.2036854776000e+13F && float_Array_0[0][1] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L80] EXPR float_Array_0[0][1] >= -922337.2036854776000e+13F && float_Array_0[0][1] <= -1.0e-20F [L80] EXPR float_Array_0[0][1] [L80] EXPR float_Array_0[0][1] >= -922337.2036854776000e+13F && float_Array_0[0][1] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L80] EXPR (float_Array_0[0][1] >= -922337.2036854776000e+13F && float_Array_0[0][1] <= -1.0e-20F) || (float_Array_0[0][1] <= 9223372.036854776000e+12F && float_Array_0[0][1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L80] EXPR (float_Array_0[0][1] >= -922337.2036854776000e+13F && float_Array_0[0][1] <= -1.0e-20F) || (float_Array_0[0][1] <= 9223372.036854776000e+12F && float_Array_0[0][1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L80] CALL assume_abort_if_not((float_Array_0[0][1] >= -922337.2036854776000e+13F && float_Array_0[0][1] <= -1.0e-20F) || (float_Array_0[0][1] <= 9223372.036854776000e+12F && float_Array_0[0][1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L80] RET assume_abort_if_not((float_Array_0[0][1] >= -922337.2036854776000e+13F && float_Array_0[0][1] <= -1.0e-20F) || (float_Array_0[0][1] <= 9223372.036854776000e+12F && float_Array_0[0][1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L81] float_Array_0[1][1] = __VERIFIER_nondet_float() [L82] EXPR float_Array_0[1][1] [L82] EXPR float_Array_0[1][1] >= -922337.2036854776000e+13F && float_Array_0[1][1] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L82] EXPR float_Array_0[1][1] >= -922337.2036854776000e+13F && float_Array_0[1][1] <= -1.0e-20F [L82] EXPR float_Array_0[1][1] [L82] EXPR float_Array_0[1][1] >= -922337.2036854776000e+13F && float_Array_0[1][1] <= -1.0e-20F VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L82] EXPR (float_Array_0[1][1] >= -922337.2036854776000e+13F && float_Array_0[1][1] <= -1.0e-20F) || (float_Array_0[1][1] <= 9223372.036854776000e+12F && float_Array_0[1][1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L82] EXPR (float_Array_0[1][1] >= -922337.2036854776000e+13F && float_Array_0[1][1] <= -1.0e-20F) || (float_Array_0[1][1] <= 9223372.036854776000e+12F && float_Array_0[1][1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L82] CALL assume_abort_if_not((float_Array_0[1][1] >= -922337.2036854776000e+13F && float_Array_0[1][1] <= -1.0e-20F) || (float_Array_0[1][1] <= 9223372.036854776000e+12F && float_Array_0[1][1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L82] RET assume_abort_if_not((float_Array_0[1][1] >= -922337.2036854776000e+13F && float_Array_0[1][1] <= -1.0e-20F) || (float_Array_0[1][1] <= 9223372.036854776000e+12F && float_Array_0[1][1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L83] signed_char_Array_0[1] = __VERIFIER_nondet_char() [L84] EXPR signed_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L84] CALL assume_abort_if_not(signed_char_Array_0[1] >= -127) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L84] RET assume_abort_if_not(signed_char_Array_0[1] >= -127) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L85] EXPR signed_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L85] CALL assume_abort_if_not(signed_char_Array_0[1] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L85] RET assume_abort_if_not(signed_char_Array_0[1] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L86] signed_short_int_Array_0[0] = __VERIFIER_nondet_short() [L87] EXPR signed_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L87] CALL assume_abort_if_not(signed_short_int_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L87] RET assume_abort_if_not(signed_short_int_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L88] EXPR signed_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L88] CALL assume_abort_if_not(signed_short_int_Array_0[0] <= 8191) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L88] RET assume_abort_if_not(signed_short_int_Array_0[0] <= 8191) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L89] signed_short_int_Array_0[1] = __VERIFIER_nondet_short() [L90] EXPR signed_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L90] CALL assume_abort_if_not(signed_short_int_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L90] RET assume_abort_if_not(signed_short_int_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L91] EXPR signed_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L91] CALL assume_abort_if_not(signed_short_int_Array_0[1] <= 8192) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L91] RET assume_abort_if_not(signed_short_int_Array_0[1] <= 8192) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L92] signed_short_int_Array_0[2] = __VERIFIER_nondet_short() [L93] EXPR signed_short_int_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L93] CALL assume_abort_if_not(signed_short_int_Array_0[2] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L93] RET assume_abort_if_not(signed_short_int_Array_0[2] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L94] EXPR signed_short_int_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L94] CALL assume_abort_if_not(signed_short_int_Array_0[2] <= 32766) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L94] RET assume_abort_if_not(signed_short_int_Array_0[2] <= 32766) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L95] signed_short_int_Array_0[3] = __VERIFIER_nondet_short() [L96] EXPR signed_short_int_Array_0[3] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L96] CALL assume_abort_if_not(signed_short_int_Array_0[3] >= 8191) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L96] RET assume_abort_if_not(signed_short_int_Array_0[3] >= 8191) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L97] EXPR signed_short_int_Array_0[3] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L97] CALL assume_abort_if_not(signed_short_int_Array_0[3] <= 16383) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L97] RET assume_abort_if_not(signed_short_int_Array_0[3] <= 16383) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L98] unsigned_char_Array_0[1] = __VERIFIER_nondet_uchar() [L99] EXPR unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L99] CALL assume_abort_if_not(unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L99] RET assume_abort_if_not(unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L100] EXPR unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L100] CALL assume_abort_if_not(unsigned_char_Array_0[1] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L100] RET assume_abort_if_not(unsigned_char_Array_0[1] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L101] unsigned_short_int_Array_0[0] = __VERIFIER_nondet_ushort() [L102] EXPR unsigned_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L102] CALL assume_abort_if_not(unsigned_short_int_Array_0[0] >= 16383) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L102] RET assume_abort_if_not(unsigned_short_int_Array_0[0] >= 16383) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L103] EXPR unsigned_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L103] CALL assume_abort_if_not(unsigned_short_int_Array_0[0] <= 32767) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L103] RET assume_abort_if_not(unsigned_short_int_Array_0[0] <= 32767) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L116] RET updateVariables() [L117] CALL step() [L43] EXPR signed_char_Array_0[1] [L43] signed_char_Array_0[0] = signed_char_Array_0[1] [L44] EXPR BOOL_unsigned_char_Array_0[1] [L44] BOOL_unsigned_char_Array_0[0] = BOOL_unsigned_char_Array_0[1] [L45] EXPR signed_char_Array_0[0] [L45] signed char stepLocal_1 = signed_char_Array_0[0]; [L46] EXPR signed_short_int_Array_0[0] [L46] EXPR signed_short_int_Array_0[3] [L46] signed long int stepLocal_0 = signed_short_int_Array_0[0] / signed_short_int_Array_0[3]; [L47] EXPR signed_short_int_Array_0[1] [L47] EXPR signed_short_int_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L47] EXPR signed_short_int_Array_0[1] << signed_short_int_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, stepLocal_0=1, stepLocal_1=0, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L47] COND FALSE !(stepLocal_1 > (signed_short_int_Array_0[1] << signed_short_int_Array_0[2])) [L54] EXPR signed_short_int_Array_0[3] [L54] EXPR signed_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L54] EXPR signed_short_int_Array_0[3] ^ signed_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, stepLocal_0=1, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L54] signed long int stepLocal_2 = signed_short_int_Array_0[3] ^ signed_char_Array_0[0]; [L55] EXPR unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L55] COND FALSE !(unsigned_char_Array_0[1] >= stepLocal_2) [L58] EXPR float_Array_0[1][1] [L58] EXPR float_Array_0[0][1] [L58] EXPR float_Array_0[1][0] [L58] EXPR float_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L58] EXPR ((float_Array_0[0][1]) > ((float_Array_0[1][0] - float_Array_0[0][0]))) ? (float_Array_0[0][1]) : ((float_Array_0[1][0] - float_Array_0[0][0])) [L58] EXPR float_Array_0[0][1] [L58] EXPR ((float_Array_0[0][1]) > ((float_Array_0[1][0] - float_Array_0[0][0]))) ? (float_Array_0[0][1]) : ((float_Array_0[1][0] - float_Array_0[0][0])) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, stepLocal_0=1, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L58] COND TRUE float_Array_0[1][1] != ((((float_Array_0[0][1]) > ((float_Array_0[1][0] - float_Array_0[0][0]))) ? (float_Array_0[0][1]) : ((float_Array_0[1][0] - float_Array_0[0][0])))) [L59] BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L59] COND FALSE !(BOOL_unsigned_char_Array_0[0]) [L69] EXPR signed_short_int_Array_0[4] [L69] unsigned_short_int_Array_0[1] = signed_short_int_Array_0[4] [L117] RET step() [L118] CALL, EXPR property() [L108] EXPR float_Array_0[1][1] [L108] EXPR float_Array_0[0][1] [L108] EXPR float_Array_0[1][0] [L108] EXPR float_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L108] EXPR ((float_Array_0[0][1]) > ((float_Array_0[1][0] - float_Array_0[0][0]))) ? (float_Array_0[0][1]) : ((float_Array_0[1][0] - float_Array_0[0][0])) [L108] EXPR float_Array_0[0][1] [L108] EXPR ((float_Array_0[0][1]) > ((float_Array_0[1][0] - float_Array_0[0][0]))) ? (float_Array_0[0][1]) : ((float_Array_0[1][0] - float_Array_0[0][0])) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L108] EXPR (float_Array_0[1][1] != ((((float_Array_0[0][1]) > ((float_Array_0[1][0] - float_Array_0[0][0]))) ? (float_Array_0[0][1]) : ((float_Array_0[1][0] - float_Array_0[0][0]))))) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (((signed_short_int_Array_0[3] - 32) + (unsigned_char_Array_0[0] + unsigned_char_Array_0[0])) - unsigned_char_Array_0[0]))) : 1) : (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) signed_char_Array_0[0])) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_char_Array_0[0]))) [L108] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L108] EXPR BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) signed_char_Array_0[0])) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_char_Array_0[0])) [L108] EXPR signed_short_int_Array_0[4] [L108] EXPR unsigned_char_Array_0[0] [L108] EXPR BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) signed_char_Array_0[0])) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_char_Array_0[0])) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L108] EXPR (float_Array_0[1][1] != ((((float_Array_0[0][1]) > ((float_Array_0[1][0] - float_Array_0[0][0]))) ? (float_Array_0[0][1]) : ((float_Array_0[1][0] - float_Array_0[0][0]))))) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (((signed_short_int_Array_0[3] - 32) + (unsigned_char_Array_0[0] + unsigned_char_Array_0[0])) - unsigned_char_Array_0[0]))) : 1) : (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) signed_char_Array_0[0])) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_char_Array_0[0]))) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L108] EXPR ((float_Array_0[1][1] != ((((float_Array_0[0][1]) > ((float_Array_0[1][0] - float_Array_0[0][0]))) ? (float_Array_0[0][1]) : ((float_Array_0[1][0] - float_Array_0[0][0]))))) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (((signed_short_int_Array_0[3] - 32) + (unsigned_char_Array_0[0] + unsigned_char_Array_0[0])) - unsigned_char_Array_0[0]))) : 1) : (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) signed_char_Array_0[0])) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_char_Array_0[0])))) && ((signed_char_Array_0[0] > (signed_short_int_Array_0[1] << signed_short_int_Array_0[2])) ? (((signed_short_int_Array_0[0] / signed_short_int_Array_0[3]) > -25) ? (unsigned_char_Array_0[0] == ((unsigned char) unsigned_char_Array_0[1])) : (unsigned_char_Array_0[0] == ((unsigned char) unsigned_char_Array_0[1]))) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L108] EXPR ((float_Array_0[1][1] != ((((float_Array_0[0][1]) > ((float_Array_0[1][0] - float_Array_0[0][0]))) ? (float_Array_0[0][1]) : ((float_Array_0[1][0] - float_Array_0[0][0]))))) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (((signed_short_int_Array_0[3] - 32) + (unsigned_char_Array_0[0] + unsigned_char_Array_0[0])) - unsigned_char_Array_0[0]))) : 1) : (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) signed_char_Array_0[0])) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_char_Array_0[0])))) && ((signed_char_Array_0[0] > (signed_short_int_Array_0[1] << signed_short_int_Array_0[2])) ? (((signed_short_int_Array_0[0] / signed_short_int_Array_0[3]) > -25) ? (unsigned_char_Array_0[0] == ((unsigned char) unsigned_char_Array_0[1])) : (unsigned_char_Array_0[0] == ((unsigned char) unsigned_char_Array_0[1]))) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L108] EXPR (((float_Array_0[1][1] != ((((float_Array_0[0][1]) > ((float_Array_0[1][0] - float_Array_0[0][0]))) ? (float_Array_0[0][1]) : ((float_Array_0[1][0] - float_Array_0[0][0]))))) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (((signed_short_int_Array_0[3] - 32) + (unsigned_char_Array_0[0] + unsigned_char_Array_0[0])) - unsigned_char_Array_0[0]))) : 1) : (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) signed_char_Array_0[0])) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_char_Array_0[0])))) && ((signed_char_Array_0[0] > (signed_short_int_Array_0[1] << signed_short_int_Array_0[2])) ? (((signed_short_int_Array_0[0] / signed_short_int_Array_0[3]) > -25) ? (unsigned_char_Array_0[0] == ((unsigned char) unsigned_char_Array_0[1])) : (unsigned_char_Array_0[0] == ((unsigned char) unsigned_char_Array_0[1]))) : 1)) && ((unsigned_char_Array_0[1] >= (signed_short_int_Array_0[3] ^ signed_char_Array_0[0])) ? (unsigned_short_int_Array_0[2] == ((unsigned short int) (unsigned_char_Array_0[1] + (unsigned_short_int_Array_0[0] - unsigned_char_Array_0[0])))) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L108] EXPR (((float_Array_0[1][1] != ((((float_Array_0[0][1]) > ((float_Array_0[1][0] - float_Array_0[0][0]))) ? (float_Array_0[0][1]) : ((float_Array_0[1][0] - float_Array_0[0][0]))))) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (((signed_short_int_Array_0[3] - 32) + (unsigned_char_Array_0[0] + unsigned_char_Array_0[0])) - unsigned_char_Array_0[0]))) : 1) : (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) signed_char_Array_0[0])) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_char_Array_0[0])))) && ((signed_char_Array_0[0] > (signed_short_int_Array_0[1] << signed_short_int_Array_0[2])) ? (((signed_short_int_Array_0[0] / signed_short_int_Array_0[3]) > -25) ? (unsigned_char_Array_0[0] == ((unsigned char) unsigned_char_Array_0[1])) : (unsigned_char_Array_0[0] == ((unsigned char) unsigned_char_Array_0[1]))) : 1)) && ((unsigned_char_Array_0[1] >= (signed_short_int_Array_0[3] ^ signed_char_Array_0[0])) ? (unsigned_short_int_Array_0[2] == ((unsigned short int) (unsigned_char_Array_0[1] + (unsigned_short_int_Array_0[0] - unsigned_char_Array_0[0])))) : 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L108] EXPR ((((float_Array_0[1][1] != ((((float_Array_0[0][1]) > ((float_Array_0[1][0] - float_Array_0[0][0]))) ? (float_Array_0[0][1]) : ((float_Array_0[1][0] - float_Array_0[0][0]))))) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (((signed_short_int_Array_0[3] - 32) + (unsigned_char_Array_0[0] + unsigned_char_Array_0[0])) - unsigned_char_Array_0[0]))) : 1) : (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) signed_char_Array_0[0])) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_char_Array_0[0])))) && ((signed_char_Array_0[0] > (signed_short_int_Array_0[1] << signed_short_int_Array_0[2])) ? (((signed_short_int_Array_0[0] / signed_short_int_Array_0[3]) > -25) ? (unsigned_char_Array_0[0] == ((unsigned char) unsigned_char_Array_0[1])) : (unsigned_char_Array_0[0] == ((unsigned char) unsigned_char_Array_0[1]))) : 1)) && ((unsigned_char_Array_0[1] >= (signed_short_int_Array_0[3] ^ signed_char_Array_0[0])) ? (unsigned_short_int_Array_0[2] == ((unsigned short int) (unsigned_char_Array_0[1] + (unsigned_short_int_Array_0[0] - unsigned_char_Array_0[0])))) : 1)) && (unsigned_short_int_Array_0[1] == ((unsigned short int) signed_short_int_Array_0[4])) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L108] EXPR ((((float_Array_0[1][1] != ((((float_Array_0[0][1]) > ((float_Array_0[1][0] - float_Array_0[0][0]))) ? (float_Array_0[0][1]) : ((float_Array_0[1][0] - float_Array_0[0][0]))))) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (((signed_short_int_Array_0[3] - 32) + (unsigned_char_Array_0[0] + unsigned_char_Array_0[0])) - unsigned_char_Array_0[0]))) : 1) : (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) signed_char_Array_0[0])) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_char_Array_0[0])))) && ((signed_char_Array_0[0] > (signed_short_int_Array_0[1] << signed_short_int_Array_0[2])) ? (((signed_short_int_Array_0[0] / signed_short_int_Array_0[3]) > -25) ? (unsigned_char_Array_0[0] == ((unsigned char) unsigned_char_Array_0[1])) : (unsigned_char_Array_0[0] == ((unsigned char) unsigned_char_Array_0[1]))) : 1)) && ((unsigned_char_Array_0[1] >= (signed_short_int_Array_0[3] ^ signed_char_Array_0[0])) ? (unsigned_short_int_Array_0[2] == ((unsigned short int) (unsigned_char_Array_0[1] + (unsigned_short_int_Array_0[0] - unsigned_char_Array_0[0])))) : 1)) && (unsigned_short_int_Array_0[1] == ((unsigned short int) signed_short_int_Array_0[4])) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L108] EXPR (((((float_Array_0[1][1] != ((((float_Array_0[0][1]) > ((float_Array_0[1][0] - float_Array_0[0][0]))) ? (float_Array_0[0][1]) : ((float_Array_0[1][0] - float_Array_0[0][0]))))) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (((signed_short_int_Array_0[3] - 32) + (unsigned_char_Array_0[0] + unsigned_char_Array_0[0])) - unsigned_char_Array_0[0]))) : 1) : (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) signed_char_Array_0[0])) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_char_Array_0[0])))) && ((signed_char_Array_0[0] > (signed_short_int_Array_0[1] << signed_short_int_Array_0[2])) ? (((signed_short_int_Array_0[0] / signed_short_int_Array_0[3]) > -25) ? (unsigned_char_Array_0[0] == ((unsigned char) unsigned_char_Array_0[1])) : (unsigned_char_Array_0[0] == ((unsigned char) unsigned_char_Array_0[1]))) : 1)) && ((unsigned_char_Array_0[1] >= (signed_short_int_Array_0[3] ^ signed_char_Array_0[0])) ? (unsigned_short_int_Array_0[2] == ((unsigned short int) (unsigned_char_Array_0[1] + (unsigned_short_int_Array_0[0] - unsigned_char_Array_0[0])))) : 1)) && (unsigned_short_int_Array_0[1] == ((unsigned short int) signed_short_int_Array_0[4]))) && (signed_char_Array_0[0] == ((signed char) signed_char_Array_0[1])) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L108] EXPR (((((float_Array_0[1][1] != ((((float_Array_0[0][1]) > ((float_Array_0[1][0] - float_Array_0[0][0]))) ? (float_Array_0[0][1]) : ((float_Array_0[1][0] - float_Array_0[0][0]))))) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (((signed_short_int_Array_0[3] - 32) + (unsigned_char_Array_0[0] + unsigned_char_Array_0[0])) - unsigned_char_Array_0[0]))) : 1) : (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) signed_char_Array_0[0])) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_char_Array_0[0])))) && ((signed_char_Array_0[0] > (signed_short_int_Array_0[1] << signed_short_int_Array_0[2])) ? (((signed_short_int_Array_0[0] / signed_short_int_Array_0[3]) > -25) ? (unsigned_char_Array_0[0] == ((unsigned char) unsigned_char_Array_0[1])) : (unsigned_char_Array_0[0] == ((unsigned char) unsigned_char_Array_0[1]))) : 1)) && ((unsigned_char_Array_0[1] >= (signed_short_int_Array_0[3] ^ signed_char_Array_0[0])) ? (unsigned_short_int_Array_0[2] == ((unsigned short int) (unsigned_char_Array_0[1] + (unsigned_short_int_Array_0[0] - unsigned_char_Array_0[0])))) : 1)) && (unsigned_short_int_Array_0[1] == ((unsigned short int) signed_short_int_Array_0[4]))) && (signed_char_Array_0[0] == ((signed char) signed_char_Array_0[1])) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L108] EXPR ((((((float_Array_0[1][1] != ((((float_Array_0[0][1]) > ((float_Array_0[1][0] - float_Array_0[0][0]))) ? (float_Array_0[0][1]) : ((float_Array_0[1][0] - float_Array_0[0][0]))))) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (((signed_short_int_Array_0[3] - 32) + (unsigned_char_Array_0[0] + unsigned_char_Array_0[0])) - unsigned_char_Array_0[0]))) : 1) : (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) signed_char_Array_0[0])) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_char_Array_0[0])))) && ((signed_char_Array_0[0] > (signed_short_int_Array_0[1] << signed_short_int_Array_0[2])) ? (((signed_short_int_Array_0[0] / signed_short_int_Array_0[3]) > -25) ? (unsigned_char_Array_0[0] == ((unsigned char) unsigned_char_Array_0[1])) : (unsigned_char_Array_0[0] == ((unsigned char) unsigned_char_Array_0[1]))) : 1)) && ((unsigned_char_Array_0[1] >= (signed_short_int_Array_0[3] ^ signed_char_Array_0[0])) ? (unsigned_short_int_Array_0[2] == ((unsigned short int) (unsigned_char_Array_0[1] + (unsigned_short_int_Array_0[0] - unsigned_char_Array_0[0])))) : 1)) && (unsigned_short_int_Array_0[1] == ((unsigned short int) signed_short_int_Array_0[4]))) && (signed_char_Array_0[0] == ((signed char) signed_char_Array_0[1]))) && (BOOL_unsigned_char_Array_0[0] == ((unsigned char) BOOL_unsigned_char_Array_0[1])) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L108] EXPR ((((((float_Array_0[1][1] != ((((float_Array_0[0][1]) > ((float_Array_0[1][0] - float_Array_0[0][0]))) ? (float_Array_0[0][1]) : ((float_Array_0[1][0] - float_Array_0[0][0]))))) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (((signed_short_int_Array_0[3] - 32) + (unsigned_char_Array_0[0] + unsigned_char_Array_0[0])) - unsigned_char_Array_0[0]))) : 1) : (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) signed_char_Array_0[0])) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_char_Array_0[0])))) && ((signed_char_Array_0[0] > (signed_short_int_Array_0[1] << signed_short_int_Array_0[2])) ? (((signed_short_int_Array_0[0] / signed_short_int_Array_0[3]) > -25) ? (unsigned_char_Array_0[0] == ((unsigned char) unsigned_char_Array_0[1])) : (unsigned_char_Array_0[0] == ((unsigned char) unsigned_char_Array_0[1]))) : 1)) && ((unsigned_char_Array_0[1] >= (signed_short_int_Array_0[3] ^ signed_char_Array_0[0])) ? (unsigned_short_int_Array_0[2] == ((unsigned short int) (unsigned_char_Array_0[1] + (unsigned_short_int_Array_0[0] - unsigned_char_Array_0[0])))) : 1)) && (unsigned_short_int_Array_0[1] == ((unsigned short int) signed_short_int_Array_0[4]))) && (signed_char_Array_0[0] == ((signed char) signed_char_Array_0[1]))) && (BOOL_unsigned_char_Array_0[0] == ((unsigned char) BOOL_unsigned_char_Array_0[1])) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L108-L109] return ((((((float_Array_0[1][1] != ((((float_Array_0[0][1]) > ((float_Array_0[1][0] - float_Array_0[0][0]))) ? (float_Array_0[0][1]) : ((float_Array_0[1][0] - float_Array_0[0][0]))))) ? (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) (((signed_short_int_Array_0[3] - 32) + (unsigned_char_Array_0[0] + unsigned_char_Array_0[0])) - unsigned_char_Array_0[0]))) : 1) : (BOOL_unsigned_char_Array_0[0] ? (signed_short_int_Array_0[4] == ((signed short int) signed_char_Array_0[0])) : (signed_short_int_Array_0[4] == ((signed short int) unsigned_char_Array_0[0])))) && ((signed_char_Array_0[0] > (signed_short_int_Array_0[1] << signed_short_int_Array_0[2])) ? (((signed_short_int_Array_0[0] / signed_short_int_Array_0[3]) > -25) ? (unsigned_char_Array_0[0] == ((unsigned char) unsigned_char_Array_0[1])) : (unsigned_char_Array_0[0] == ((unsigned char) unsigned_char_Array_0[1]))) : 1)) && ((unsigned_char_Array_0[1] >= (signed_short_int_Array_0[3] ^ signed_char_Array_0[0])) ? (unsigned_short_int_Array_0[2] == ((unsigned short int) (unsigned_char_Array_0[1] + (unsigned_short_int_Array_0[0] - unsigned_char_Array_0[0])))) : 1)) && (unsigned_short_int_Array_0[1] == ((unsigned short int) signed_short_int_Array_0[4]))) && (signed_char_Array_0[0] == ((signed char) signed_char_Array_0[1]))) && (BOOL_unsigned_char_Array_0[0] == ((unsigned char) BOOL_unsigned_char_Array_0[1])) ; [L118] RET, EXPR property() [L118] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 126 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.4s, OverallIterations: 10, TraceHistogramMax: 20, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 932 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 918 mSDsluCounter, 5531 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4050 mSDsCounter, 152 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1296 IncrementalHoareTripleChecker+Invalid, 1448 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 152 mSolverCounterUnsat, 1481 mSDtfsCounter, 1296 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1080 GetRequests, 1003 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=147occurred in iteration=9, InterpolantAutomatonStates: 61, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 233 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 5.2s InterpolantComputationTime, 2528 NumberOfCodeBlocks, 2528 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 2512 ConstructedInterpolants, 0 QuantifiedInterpolants, 4338 SizeOfPredicates, 9 NumberOfNonLiveVariables, 2362 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 15 InterpolantComputations, 7 PerfectInterpolantSequences, 11176/11400 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-24 01:55:42,141 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/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_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-43.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/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 5d359503c0f6b7fead1204dfe760bfe51225f7e05671bbe3e92f7a9f7a51757d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:55:45,022 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:55:45,148 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-24 01:55:45,159 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:55:45,160 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:55:45,208 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:55:45,209 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:55:45,209 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:55:45,210 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:55:45,210 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:55:45,211 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:55:45,212 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:55:45,212 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:55:45,212 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:55:45,213 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:55:45,213 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:55:45,213 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:55:45,213 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:55:45,213 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:55:45,214 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:55:45,214 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:55:45,214 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:55:45,215 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:55:45,215 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 01:55:45,215 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-24 01:55:45,215 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-24 01:55:45,215 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:55:45,215 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:55:45,215 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:55:45,216 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:55:45,216 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:55:45,216 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:55:45,216 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:55:45,216 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:55:45,216 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:55:45,216 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:55:45,217 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:55:45,218 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:55:45,218 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:55:45,218 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:55:45,218 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:55:45,218 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:55:45,218 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:55:45,218 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:55:45,219 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-24 01:55:45,219 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 01:55:45,219 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:55:45,219 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:55:45,219 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:55:45,219 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:55:45,219 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_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/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 -> 5d359503c0f6b7fead1204dfe760bfe51225f7e05671bbe3e92f7a9f7a51757d [2024-11-24 01:55:45,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:55:45,633 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:55:45,636 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:55:45,637 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:55:45,637 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:55:45,639 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-43.i [2024-11-24 01:55:48,555 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/data/da034652d/b2c86eb0c3bb4d23895a216714eca5ac/FLAGfb19ca485 [2024-11-24 01:55:48,849 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:55:48,850 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-43.i [2024-11-24 01:55:48,862 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/data/da034652d/b2c86eb0c3bb4d23895a216714eca5ac/FLAGfb19ca485 [2024-11-24 01:55:49,134 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/data/da034652d/b2c86eb0c3bb4d23895a216714eca5ac [2024-11-24 01:55:49,138 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:55:49,139 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:55:49,142 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:55:49,144 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:55:49,149 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:55:49,150 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:55:49" (1/1) ... [2024-11-24 01:55:49,151 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7380760c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:55:49, skipping insertion in model container [2024-11-24 01:55:49,151 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:55:49" (1/1) ... [2024-11-24 01:55:49,178 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:55:49,374 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_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-43.i[916,929] [2024-11-24 01:55:49,511 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:55:49,538 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:55:49,553 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_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-43.i[916,929] [2024-11-24 01:55:49,668 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:55:49,699 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:55:49,700 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:55:49 WrapperNode [2024-11-24 01:55:49,700 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:55:49,701 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:55:49,701 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:55:49,701 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:55:49,708 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:55:49" (1/1) ... [2024-11-24 01:55:49,725 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:55:49" (1/1) ... [2024-11-24 01:55:49,769 INFO L138 Inliner]: procedures = 33, calls = 181, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 508 [2024-11-24 01:55:49,769 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:55:49,770 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:55:49,770 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:55:49,770 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:55:49,781 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:55:49" (1/1) ... [2024-11-24 01:55:49,781 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:55:49" (1/1) ... [2024-11-24 01:55:49,795 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:55:49" (1/1) ... [2024-11-24 01:55:49,830 INFO L175 MemorySlicer]: Split 144 memory accesses to 7 slices as follows [2, 13, 38, 15, 37, 27, 12]. 26 percent of accesses are in the largest equivalence class. The 20 initializations are split as follows [2, 2, 4, 2, 5, 2, 3]. The 21 writes are split as follows [0, 2, 4, 2, 7, 3, 3]. [2024-11-24 01:55:49,831 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:55:49" (1/1) ... [2024-11-24 01:55:49,831 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:55:49" (1/1) ... [2024-11-24 01:55:49,859 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:55:49" (1/1) ... [2024-11-24 01:55:49,861 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:55:49" (1/1) ... [2024-11-24 01:55:49,866 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:55:49" (1/1) ... [2024-11-24 01:55:49,870 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:55:49" (1/1) ... [2024-11-24 01:55:49,874 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:55:49" (1/1) ... [2024-11-24 01:55:49,891 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:55:49,892 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:55:49,892 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:55:49,892 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:55:49,897 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:55:49" (1/1) ... [2024-11-24 01:55:49,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:55:49,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:55:49,940 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:55:49,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:55:49,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:55:49,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-24 01:55:49,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-24 01:55:49,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-24 01:55:49,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-11-24 01:55:49,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-11-24 01:55:49,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2024-11-24 01:55:49,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#6 [2024-11-24 01:55:49,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2024-11-24 01:55:49,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2024-11-24 01:55:49,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#2 [2024-11-24 01:55:49,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#3 [2024-11-24 01:55:49,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#4 [2024-11-24 01:55:49,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#5 [2024-11-24 01:55:49,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#6 [2024-11-24 01:55:49,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-24 01:55:49,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-24 01:55:49,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-24 01:55:49,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-24 01:55:49,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-24 01:55:49,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-24 01:55:49,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-24 01:55:49,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-24 01:55:49,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-24 01:55:49,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-24 01:55:49,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-24 01:55:49,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-24 01:55:49,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-11-24 01:55:49,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-11-24 01:55:49,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-11-24 01:55:49,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-11-24 01:55:49,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#2 [2024-11-24 01:55:49,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#3 [2024-11-24 01:55:49,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#4 [2024-11-24 01:55:49,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#5 [2024-11-24 01:55:49,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#6 [2024-11-24 01:55:49,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-24 01:55:49,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-24 01:55:49,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-24 01:55:49,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-24 01:55:49,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-24 01:55:49,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-11-24 01:55:49,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-11-24 01:55:49,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-11-24 01:55:49,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-11-24 01:55:49,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-11-24 01:55:49,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-11-24 01:55:49,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-11-24 01:55:49,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2024-11-24 01:55:49,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6 [2024-11-24 01:55:49,976 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:55:49,976 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:55:49,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:55:49,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:55:49,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-24 01:55:49,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-24 01:55:49,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-11-24 01:55:49,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-11-24 01:55:49,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-11-24 01:55:49,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2024-11-24 01:55:49,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#6 [2024-11-24 01:55:49,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-11-24 01:55:49,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-11-24 01:55:49,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#2 [2024-11-24 01:55:49,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#3 [2024-11-24 01:55:49,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#4 [2024-11-24 01:55:49,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#5 [2024-11-24 01:55:49,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#6 [2024-11-24 01:55:50,180 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:55:50,183 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:55:51,898 INFO L? ?]: Removed 119 outVars from TransFormulas that were not future-live. [2024-11-24 01:55:51,898 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:55:51,917 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:55:51,919 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 01:55:51,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:55:51 BoogieIcfgContainer [2024-11-24 01:55:51,920 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:55:51,923 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:55:51,924 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:55:51,931 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:55:51,931 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:55:49" (1/3) ... [2024-11-24 01:55:51,933 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4acbd5db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:55:51, skipping insertion in model container [2024-11-24 01:55:51,933 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:55:49" (2/3) ... [2024-11-24 01:55:51,934 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4acbd5db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:55:51, skipping insertion in model container [2024-11-24 01:55:51,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:55:51" (3/3) ... [2024-11-24 01:55:51,935 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-43.i [2024-11-24 01:55:51,954 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:55:51,957 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-43.i that has 2 procedures, 113 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 01:55:52,024 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:55:52,039 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;@4fa6703e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:55:52,039 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:55:52,043 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 90 states have (on average 1.4) internal successors, (126), 91 states have internal predecessors, (126), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 01:55:52,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-24 01:55:52,058 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:55:52,059 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:55:52,060 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:55:52,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:55:52,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1283937744, now seen corresponding path program 1 times [2024-11-24 01:55:52,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:55:52,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [225450215] [2024-11-24 01:55:52,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:55:52,107 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:55:52,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:55:52,111 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 01:55:52,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-24 01:55:52,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:55:52,714 INFO L256 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 01:55:52,727 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:55:52,807 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 350 proven. 0 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2024-11-24 01:55:52,807 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:55:52,810 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:55:52,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [225450215] [2024-11-24 01:55:52,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [225450215] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:55:52,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:55:52,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:55:52,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345049158] [2024-11-24 01:55:52,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:55:52,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:55:52,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:55:52,845 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:55:52,846 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:55:52,848 INFO L87 Difference]: Start difference. First operand has 113 states, 90 states have (on average 1.4) internal successors, (126), 91 states have internal predecessors, (126), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 01:55:52,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:55:52,880 INFO L93 Difference]: Finished difference Result 219 states and 346 transitions. [2024-11-24 01:55:52,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:55:52,883 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 165 [2024-11-24 01:55:52,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:55:52,891 INFO L225 Difference]: With dead ends: 219 [2024-11-24 01:55:52,891 INFO L226 Difference]: Without dead ends: 109 [2024-11-24 01:55:52,895 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:55:52,899 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:55:52,900 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:55:52,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-24 01:55:52,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-11-24 01:55:52,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 87 states have (on average 1.367816091954023) internal successors, (119), 87 states have internal predecessors, (119), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 01:55:52,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 159 transitions. [2024-11-24 01:55:52,943 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 159 transitions. Word has length 165 [2024-11-24 01:55:52,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:55:52,944 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 159 transitions. [2024-11-24 01:55:52,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 01:55:52,945 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 159 transitions. [2024-11-24 01:55:52,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-24 01:55:52,948 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:55:52,949 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:55:52,962 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-24 01:55:53,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:55:53,150 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:55:53,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:55:53,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1727019120, now seen corresponding path program 1 times [2024-11-24 01:55:53,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:55:53,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1905265907] [2024-11-24 01:55:53,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:55:53,152 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:55:53,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:55:53,155 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 01:55:53,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-24 01:55:53,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:55:53,892 INFO L256 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:55:53,908 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:55:54,001 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked. [2024-11-24 01:55:54,004 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:55:54,004 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:55:54,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1905265907] [2024-11-24 01:55:54,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1905265907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:55:54,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:55:54,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:55:54,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5531203] [2024-11-24 01:55:54,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:55:54,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:55:54,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:55:54,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:55:54,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:55:54,012 INFO L87 Difference]: Start difference. First operand 109 states and 159 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 01:55:54,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:55:54,121 INFO L93 Difference]: Finished difference Result 217 states and 318 transitions. [2024-11-24 01:55:54,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:55:54,129 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 165 [2024-11-24 01:55:54,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:55:54,131 INFO L225 Difference]: With dead ends: 217 [2024-11-24 01:55:54,131 INFO L226 Difference]: Without dead ends: 111 [2024-11-24 01:55:54,132 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:55:54,136 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 0 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:55:54,137 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 460 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:55:54,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-24 01:55:54,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2024-11-24 01:55:54,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 89 states have (on average 1.3595505617977528) internal successors, (121), 89 states have internal predecessors, (121), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 01:55:54,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 161 transitions. [2024-11-24 01:55:54,168 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 161 transitions. Word has length 165 [2024-11-24 01:55:54,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:55:54,169 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 161 transitions. [2024-11-24 01:55:54,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 01:55:54,170 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 161 transitions. [2024-11-24 01:55:54,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-24 01:55:54,175 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:55:54,176 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:55:54,191 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-24 01:55:54,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:55:54,377 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:55:54,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:55:54,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1462371630, now seen corresponding path program 1 times [2024-11-24 01:55:54,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:55:54,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1158440546] [2024-11-24 01:55:54,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:55:54,379 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:55:54,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:55:54,381 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 01:55:54,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-24 01:55:55,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:55:55,112 INFO L256 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-24 01:55:55,122 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:55:55,962 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 31 treesize of output 24 [2024-11-24 01:55:56,104 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:55:56,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 15 [2024-11-24 01:55:56,198 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 93 proven. 54 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2024-11-24 01:55:56,199 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:55:57,021 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 3 proven. 54 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-24 01:55:57,021 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:55:57,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1158440546] [2024-11-24 01:55:57,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1158440546] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:55:57,022 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:55:57,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2024-11-24 01:55:57,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565758506] [2024-11-24 01:55:57,022 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:55:57,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 01:55:57,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:55:57,024 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 01:55:57,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:55:57,025 INFO L87 Difference]: Start difference. First operand 111 states and 161 transitions. Second operand has 13 states, 11 states have (on average 7.818181818181818) internal successors, (86), 13 states have internal predecessors, (86), 4 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (39), 2 states have call predecessors, (39), 4 states have call successors, (39) [2024-11-24 01:55:58,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:55:58,312 INFO L93 Difference]: Finished difference Result 227 states and 326 transitions. [2024-11-24 01:55:58,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 01:55:58,313 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 7.818181818181818) internal successors, (86), 13 states have internal predecessors, (86), 4 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (39), 2 states have call predecessors, (39), 4 states have call successors, (39) Word has length 165 [2024-11-24 01:55:58,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:55:58,315 INFO L225 Difference]: With dead ends: 227 [2024-11-24 01:55:58,315 INFO L226 Difference]: Without dead ends: 119 [2024-11-24 01:55:58,317 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 317 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=127, Invalid=379, Unknown=0, NotChecked=0, Total=506 [2024-11-24 01:55:58,318 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 320 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:55:58,318 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 632 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 01:55:58,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-24 01:55:58,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 115. [2024-11-24 01:55:58,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 92 states have (on average 1.3369565217391304) internal successors, (123), 92 states have internal predecessors, (123), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 01:55:58,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 163 transitions. [2024-11-24 01:55:58,339 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 163 transitions. Word has length 165 [2024-11-24 01:55:58,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:55:58,339 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 163 transitions. [2024-11-24 01:55:58,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 7.818181818181818) internal successors, (86), 13 states have internal predecessors, (86), 4 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (39), 2 states have call predecessors, (39), 4 states have call successors, (39) [2024-11-24 01:55:58,340 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 163 transitions. [2024-11-24 01:55:58,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-24 01:55:58,343 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:55:58,343 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:55:58,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-24 01:55:58,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:55:58,544 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:55:58,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:55:58,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1039669804, now seen corresponding path program 1 times [2024-11-24 01:55:58,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:55:58,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1117859911] [2024-11-24 01:55:58,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:55:58,546 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:55:58,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:55:58,553 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 01:55:58,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-24 01:55:59,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:55:59,271 INFO L256 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-24 01:55:59,281 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:56:00,030 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 31 treesize of output 24 [2024-11-24 01:56:00,217 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:56:00,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 15 [2024-11-24 01:56:00,284 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 93 proven. 54 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2024-11-24 01:56:00,284 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:56:01,004 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 3 proven. 54 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-24 01:56:01,004 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:56:01,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1117859911] [2024-11-24 01:56:01,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1117859911] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:56:01,004 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:56:01,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2024-11-24 01:56:01,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851992899] [2024-11-24 01:56:01,005 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:56:01,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 01:56:01,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:56:01,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 01:56:01,007 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:56:01,007 INFO L87 Difference]: Start difference. First operand 115 states and 163 transitions. Second operand has 13 states, 11 states have (on average 8.272727272727273) internal successors, (91), 13 states have internal predecessors, (91), 4 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (39), 2 states have call predecessors, (39), 4 states have call successors, (39) [2024-11-24 01:56:02,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:56:02,081 INFO L93 Difference]: Finished difference Result 231 states and 327 transitions. [2024-11-24 01:56:02,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 01:56:02,082 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 8.272727272727273) internal successors, (91), 13 states have internal predecessors, (91), 4 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (39), 2 states have call predecessors, (39), 4 states have call successors, (39) Word has length 165 [2024-11-24 01:56:02,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:56:02,084 INFO L225 Difference]: With dead ends: 231 [2024-11-24 01:56:02,084 INFO L226 Difference]: Without dead ends: 119 [2024-11-24 01:56:02,085 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 317 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=127, Invalid=379, Unknown=0, NotChecked=0, Total=506 [2024-11-24 01:56:02,086 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 295 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:56:02,086 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 625 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 01:56:02,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-24 01:56:02,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 115. [2024-11-24 01:56:02,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 92 states have (on average 1.326086956521739) internal successors, (122), 92 states have internal predecessors, (122), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 01:56:02,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 162 transitions. [2024-11-24 01:56:02,112 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 162 transitions. Word has length 165 [2024-11-24 01:56:02,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:56:02,113 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 162 transitions. [2024-11-24 01:56:02,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 8.272727272727273) internal successors, (91), 13 states have internal predecessors, (91), 4 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (39), 2 states have call predecessors, (39), 4 states have call successors, (39) [2024-11-24 01:56:02,113 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 162 transitions. [2024-11-24 01:56:02,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-24 01:56:02,116 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:56:02,116 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:56:02,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-11-24 01:56:02,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:56:02,317 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:56:02,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:56:02,318 INFO L85 PathProgramCache]: Analyzing trace with hash -2060738158, now seen corresponding path program 1 times [2024-11-24 01:56:02,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:56:02,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [252429611] [2024-11-24 01:56:02,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:56:02,319 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:56:02,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:56:02,321 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 01:56:02,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-24 01:56:02,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:56:02,823 INFO L256 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:56:02,830 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:56:02,869 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:56:02,869 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:56:02,869 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:56:02,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [252429611] [2024-11-24 01:56:02,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [252429611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:56:02,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:56:02,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:56:02,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854920448] [2024-11-24 01:56:02,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:56:02,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:56:02,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:56:02,871 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:56:02,871 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:56:02,872 INFO L87 Difference]: Start difference. First operand 115 states and 162 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:56:02,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:56:02,951 INFO L93 Difference]: Finished difference Result 232 states and 328 transitions. [2024-11-24 01:56:02,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:56:02,951 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 165 [2024-11-24 01:56:02,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:56:02,953 INFO L225 Difference]: With dead ends: 232 [2024-11-24 01:56:02,953 INFO L226 Difference]: Without dead ends: 120 [2024-11-24 01:56:02,954 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:56:02,954 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 1 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:56:02,955 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 592 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:56:02,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-24 01:56:02,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 119. [2024-11-24 01:56:02,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 96 states have (on average 1.3125) internal successors, (126), 96 states have internal predecessors, (126), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 01:56:02,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 166 transitions. [2024-11-24 01:56:02,970 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 166 transitions. Word has length 165 [2024-11-24 01:56:02,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:56:02,971 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 166 transitions. [2024-11-24 01:56:02,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:56:02,971 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 166 transitions. [2024-11-24 01:56:02,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-24 01:56:02,973 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:56:02,974 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:56:02,984 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-24 01:56:03,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:56:03,174 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:56:03,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:56:03,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1380679788, now seen corresponding path program 1 times [2024-11-24 01:56:03,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:56:03,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1826585585] [2024-11-24 01:56:03,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:56:03,176 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:56:03,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:56:03,178 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 01:56:03,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-24 01:56:03,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:56:03,667 INFO L256 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 01:56:03,671 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:56:03,718 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:56:03,718 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:56:03,719 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:56:03,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1826585585] [2024-11-24 01:56:03,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1826585585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:56:03,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:56:03,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:56:03,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011369182] [2024-11-24 01:56:03,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:56:03,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:56:03,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:56:03,720 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:56:03,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:56:03,720 INFO L87 Difference]: Start difference. First operand 119 states and 166 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:56:03,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:56:03,820 INFO L93 Difference]: Finished difference Result 238 states and 333 transitions. [2024-11-24 01:56:03,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:56:03,820 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 165 [2024-11-24 01:56:03,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:56:03,822 INFO L225 Difference]: With dead ends: 238 [2024-11-24 01:56:03,822 INFO L226 Difference]: Without dead ends: 122 [2024-11-24 01:56:03,823 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:56:03,824 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 1 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:56:03,824 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 730 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:56:03,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-24 01:56:03,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 121. [2024-11-24 01:56:03,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 98 states have (on average 1.3061224489795917) internal successors, (128), 98 states have internal predecessors, (128), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 01:56:03,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 168 transitions. [2024-11-24 01:56:03,855 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 168 transitions. Word has length 165 [2024-11-24 01:56:03,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:56:03,856 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 168 transitions. [2024-11-24 01:56:03,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:56:03,856 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 168 transitions. [2024-11-24 01:56:03,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-24 01:56:03,858 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:56:03,858 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:56:03,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-24 01:56:04,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:56:04,065 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:56:04,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:56:04,066 INFO L85 PathProgramCache]: Analyzing trace with hash 394327574, now seen corresponding path program 1 times [2024-11-24 01:56:04,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:56:04,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1801943970] [2024-11-24 01:56:04,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:56:04,066 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:56:04,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:56:04,068 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 01:56:04,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-24 01:56:04,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:56:04,567 INFO L256 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 01:56:04,571 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:56:04,695 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 77 treesize of output 41 [2024-11-24 01:56:04,726 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked. [2024-11-24 01:56:04,726 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:56:04,726 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:56:04,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1801943970] [2024-11-24 01:56:04,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1801943970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:56:04,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:56:04,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:56:04,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090836658] [2024-11-24 01:56:04,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:56:04,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:56:04,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:56:04,728 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:56:04,728 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:56:04,728 INFO L87 Difference]: Start difference. First operand 121 states and 168 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 01:56:06,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:56:06,103 INFO L93 Difference]: Finished difference Result 239 states and 333 transitions. [2024-11-24 01:56:06,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:56:06,111 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 165 [2024-11-24 01:56:06,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:56:06,114 INFO L225 Difference]: With dead ends: 239 [2024-11-24 01:56:06,114 INFO L226 Difference]: Without dead ends: 121 [2024-11-24 01:56:06,115 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:56:06,116 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 143 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:56:06,116 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 489 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-24 01:56:06,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-24 01:56:06,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 119. [2024-11-24 01:56:06,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 96 states have (on average 1.3020833333333333) internal successors, (125), 96 states have internal predecessors, (125), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 01:56:06,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 165 transitions. [2024-11-24 01:56:06,138 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 165 transitions. Word has length 165 [2024-11-24 01:56:06,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:56:06,138 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 165 transitions. [2024-11-24 01:56:06,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 01:56:06,138 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 165 transitions. [2024-11-24 01:56:06,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-24 01:56:06,140 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:56:06,140 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:56:06,154 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-24 01:56:06,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:56:06,341 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:56:06,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:56:06,341 INFO L85 PathProgramCache]: Analyzing trace with hash 222260046, now seen corresponding path program 1 times [2024-11-24 01:56:06,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:56:06,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1112209816] [2024-11-24 01:56:06,342 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:56:06,342 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:56:06,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:56:06,344 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 01:56:06,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-24 01:56:06,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:56:06,848 INFO L256 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-24 01:56:06,853 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:56:07,034 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 76 treesize of output 40 [2024-11-24 01:56:07,116 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 204 proven. 8 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2024-11-24 01:56:07,116 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:56:07,435 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 46 treesize of output 22 [2024-11-24 01:56:07,453 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 6 proven. 51 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-24 01:56:07,453 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:56:07,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1112209816] [2024-11-24 01:56:07,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1112209816] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:56:07,453 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:56:07,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2024-11-24 01:56:07,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184144104] [2024-11-24 01:56:07,453 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:56:07,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 01:56:07,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:56:07,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 01:56:07,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-24 01:56:07,455 INFO L87 Difference]: Start difference. First operand 119 states and 165 transitions. Second operand has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 12 states have internal predecessors, (92), 4 states have call successors, (39), 3 states have call predecessors, (39), 4 states have return successors, (39), 3 states have call predecessors, (39), 4 states have call successors, (39) [2024-11-24 01:56:09,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:56:09,572 INFO L93 Difference]: Finished difference Result 250 states and 344 transitions. [2024-11-24 01:56:09,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 01:56:09,581 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 12 states have internal predecessors, (92), 4 states have call successors, (39), 3 states have call predecessors, (39), 4 states have return successors, (39), 3 states have call predecessors, (39), 4 states have call successors, (39) Word has length 167 [2024-11-24 01:56:09,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:56:09,582 INFO L225 Difference]: With dead ends: 250 [2024-11-24 01:56:09,582 INFO L226 Difference]: Without dead ends: 123 [2024-11-24 01:56:09,583 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=96, Invalid=366, Unknown=0, NotChecked=0, Total=462 [2024-11-24 01:56:09,584 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 137 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:56:09,584 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 796 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-24 01:56:09,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-24 01:56:09,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 119. [2024-11-24 01:56:09,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 96 states have (on average 1.28125) internal successors, (123), 96 states have internal predecessors, (123), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 01:56:09,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 163 transitions. [2024-11-24 01:56:09,600 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 163 transitions. Word has length 167 [2024-11-24 01:56:09,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:56:09,600 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 163 transitions. [2024-11-24 01:56:09,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 12 states have internal predecessors, (92), 4 states have call successors, (39), 3 states have call predecessors, (39), 4 states have return successors, (39), 3 states have call predecessors, (39), 4 states have call successors, (39) [2024-11-24 01:56:09,600 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 163 transitions. [2024-11-24 01:56:09,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-24 01:56:09,602 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:56:09,602 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:56:09,614 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-11-24 01:56:09,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:56:09,803 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:56:09,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:56:09,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1145427472, now seen corresponding path program 1 times [2024-11-24 01:56:09,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:56:09,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1313399466] [2024-11-24 01:56:09,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:56:09,804 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:56:09,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:56:09,806 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 01:56:09,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-24 01:56:10,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:56:10,435 INFO L256 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 01:56:10,439 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:56:10,593 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 95 treesize of output 41 [2024-11-24 01:56:10,634 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 204 proven. 0 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2024-11-24 01:56:10,635 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:56:10,635 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:56:10,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1313399466] [2024-11-24 01:56:10,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1313399466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:56:10,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:56:10,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:56:10,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500063034] [2024-11-24 01:56:10,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:56:10,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:56:10,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:56:10,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:56:10,637 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:56:10,638 INFO L87 Difference]: Start difference. First operand 119 states and 163 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 01:56:12,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:56:12,074 INFO L93 Difference]: Finished difference Result 236 states and 324 transitions. [2024-11-24 01:56:12,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:56:12,081 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 167 [2024-11-24 01:56:12,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:56:12,082 INFO L225 Difference]: With dead ends: 236 [2024-11-24 01:56:12,082 INFO L226 Difference]: Without dead ends: 120 [2024-11-24 01:56:12,083 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:56:12,083 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 132 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:56:12,084 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 479 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-24 01:56:12,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-24 01:56:12,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 119. [2024-11-24 01:56:12,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 96 states have (on average 1.2708333333333333) internal successors, (122), 96 states have internal predecessors, (122), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 01:56:12,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 162 transitions. [2024-11-24 01:56:12,095 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 162 transitions. Word has length 167 [2024-11-24 01:56:12,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:56:12,096 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 162 transitions. [2024-11-24 01:56:12,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 01:56:12,096 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 162 transitions. [2024-11-24 01:56:12,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-24 01:56:12,098 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:56:12,098 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:56:12,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-24 01:56:12,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:56:12,299 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:56:12,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:56:12,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1485224362, now seen corresponding path program 1 times [2024-11-24 01:56:12,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:56:12,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [625523333] [2024-11-24 01:56:12,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:56:12,300 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:56:12,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:56:12,304 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 01:56:12,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-24 01:56:12,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:56:12,822 INFO L256 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 01:56:12,827 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:56:12,848 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 20 treesize of output 16 [2024-11-24 01:56:12,896 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 63 treesize of output 51 [2024-11-24 01:56:12,902 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 51 treesize of output 33 [2024-11-24 01:56:12,952 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:56:12,952 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:56:12,952 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:56:12,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [625523333] [2024-11-24 01:56:12,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [625523333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:56:12,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:56:12,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:56:12,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325909755] [2024-11-24 01:56:12,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:56:12,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:56:12,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:56:12,954 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:56:12,954 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:56:12,954 INFO L87 Difference]: Start difference. First operand 119 states and 162 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:56:13,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:56:13,514 INFO L93 Difference]: Finished difference Result 353 states and 483 transitions. [2024-11-24 01:56:13,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:56:13,515 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 169 [2024-11-24 01:56:13,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:56:13,516 INFO L225 Difference]: With dead ends: 353 [2024-11-24 01:56:13,517 INFO L226 Difference]: Without dead ends: 237 [2024-11-24 01:56:13,517 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:56:13,518 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 139 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:56:13,518 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 1044 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:56:13,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-11-24 01:56:13,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 233. [2024-11-24 01:56:13,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 188 states have (on average 1.2712765957446808) internal successors, (239), 188 states have internal predecessors, (239), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-24 01:56:13,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 319 transitions. [2024-11-24 01:56:13,546 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 319 transitions. Word has length 169 [2024-11-24 01:56:13,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:56:13,547 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 319 transitions. [2024-11-24 01:56:13,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:56:13,548 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 319 transitions. [2024-11-24 01:56:13,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-24 01:56:13,549 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:56:13,549 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:56:13,559 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-11-24 01:56:13,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:56:13,750 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:56:13,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:56:13,750 INFO L85 PathProgramCache]: Analyzing trace with hash -142265489, now seen corresponding path program 1 times [2024-11-24 01:56:13,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:56:13,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1091405998] [2024-11-24 01:56:13,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:56:13,751 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:56:13,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:56:13,753 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 01:56:13,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-24 01:56:14,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:56:14,218 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-24 01:56:14,223 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:56:14,794 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 31 treesize of output 24 [2024-11-24 01:56:14,912 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:56:14,912 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 15 [2024-11-24 01:56:14,944 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 93 proven. 54 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2024-11-24 01:56:14,944 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:56:15,437 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 3 proven. 54 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-24 01:56:15,437 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:56:15,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1091405998] [2024-11-24 01:56:15,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1091405998] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:56:15,437 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:56:15,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2024-11-24 01:56:15,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560935030] [2024-11-24 01:56:15,437 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:56:15,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 01:56:15,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:56:15,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 01:56:15,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:56:15,440 INFO L87 Difference]: Start difference. First operand 233 states and 319 transitions. Second operand has 13 states, 11 states have (on average 8.636363636363637) internal successors, (95), 13 states have internal predecessors, (95), 4 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (39), 2 states have call predecessors, (39), 4 states have call successors, (39) [2024-11-24 01:56:16,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:56:16,231 INFO L93 Difference]: Finished difference Result 471 states and 643 transitions. [2024-11-24 01:56:16,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 01:56:16,232 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 8.636363636363637) internal successors, (95), 13 states have internal predecessors, (95), 4 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (39), 2 states have call predecessors, (39), 4 states have call successors, (39) Word has length 169 [2024-11-24 01:56:16,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:56:16,234 INFO L225 Difference]: With dead ends: 471 [2024-11-24 01:56:16,234 INFO L226 Difference]: Without dead ends: 241 [2024-11-24 01:56:16,235 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 325 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=127, Invalid=379, Unknown=0, NotChecked=0, Total=506 [2024-11-24 01:56:16,235 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 271 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:56:16,236 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 596 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:56:16,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2024-11-24 01:56:16,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 233. [2024-11-24 01:56:16,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 188 states have (on average 1.2606382978723405) internal successors, (237), 188 states have internal predecessors, (237), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-24 01:56:16,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 317 transitions. [2024-11-24 01:56:16,258 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 317 transitions. Word has length 169 [2024-11-24 01:56:16,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:56:16,258 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 317 transitions. [2024-11-24 01:56:16,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 8.636363636363637) internal successors, (95), 13 states have internal predecessors, (95), 4 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (39), 2 states have call predecessors, (39), 4 states have call successors, (39) [2024-11-24 01:56:16,259 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 317 transitions. [2024-11-24 01:56:16,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-24 01:56:16,260 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:56:16,260 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:56:16,271 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-11-24 01:56:16,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:56:16,461 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:56:16,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:56:16,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1163333843, now seen corresponding path program 1 times [2024-11-24 01:56:16,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:56:16,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1534553727] [2024-11-24 01:56:16,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:56:16,462 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:56:16,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:56:16,463 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 01:56:16,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-24 01:56:16,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:56:16,920 INFO L256 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:56:16,924 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:56:16,960 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:56:16,960 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:56:16,960 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:56:16,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1534553727] [2024-11-24 01:56:16,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1534553727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:56:16,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:56:16,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:56:16,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697815620] [2024-11-24 01:56:16,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:56:16,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:56:16,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:56:16,962 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:56:16,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:56:16,963 INFO L87 Difference]: Start difference. First operand 233 states and 317 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:56:17,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:56:17,023 INFO L93 Difference]: Finished difference Result 463 states and 632 transitions. [2024-11-24 01:56:17,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:56:17,023 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 169 [2024-11-24 01:56:17,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:56:17,024 INFO L225 Difference]: With dead ends: 463 [2024-11-24 01:56:17,024 INFO L226 Difference]: Without dead ends: 233 [2024-11-24 01:56:17,025 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:56:17,025 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 0 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:56:17,025 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 587 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:56:17,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-11-24 01:56:17,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 231. [2024-11-24 01:56:17,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 186 states have (on average 1.2580645161290323) internal successors, (234), 186 states have internal predecessors, (234), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-24 01:56:17,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 314 transitions. [2024-11-24 01:56:17,047 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 314 transitions. Word has length 169 [2024-11-24 01:56:17,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:56:17,047 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 314 transitions. [2024-11-24 01:56:17,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:56:17,048 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 314 transitions. [2024-11-24 01:56:17,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-24 01:56:17,049 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:56:17,049 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:56:17,060 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-11-24 01:56:17,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:56:17,250 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:56:17,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:56:17,250 INFO L85 PathProgramCache]: Analyzing trace with hash -179185068, now seen corresponding path program 1 times [2024-11-24 01:56:17,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:56:17,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1141163350] [2024-11-24 01:56:17,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:56:17,251 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:56:17,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:56:17,253 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 01:56:17,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-11-24 01:56:17,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:56:17,771 INFO L256 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-24 01:56:17,774 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:56:18,241 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 31 treesize of output 24 [2024-11-24 01:56:18,331 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:56:18,331 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 15 [2024-11-24 01:56:18,375 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 93 proven. 54 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2024-11-24 01:56:18,376 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:56:18,878 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 3 proven. 54 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-24 01:56:18,878 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:56:18,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1141163350] [2024-11-24 01:56:18,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1141163350] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:56:18,878 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:56:18,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2024-11-24 01:56:18,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47705029] [2024-11-24 01:56:18,879 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:56:18,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 01:56:18,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:56:18,880 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 01:56:18,880 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:56:18,880 INFO L87 Difference]: Start difference. First operand 231 states and 314 transitions. Second operand has 13 states, 11 states have (on average 8.181818181818182) internal successors, (90), 13 states have internal predecessors, (90), 4 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (39), 2 states have call predecessors, (39), 4 states have call successors, (39) [2024-11-24 01:56:19,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:56:19,662 INFO L93 Difference]: Finished difference Result 467 states and 633 transitions. [2024-11-24 01:56:19,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 01:56:19,663 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 8.181818181818182) internal successors, (90), 13 states have internal predecessors, (90), 4 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (39), 2 states have call predecessors, (39), 4 states have call successors, (39) Word has length 169 [2024-11-24 01:56:19,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:56:19,665 INFO L225 Difference]: With dead ends: 467 [2024-11-24 01:56:19,665 INFO L226 Difference]: Without dead ends: 239 [2024-11-24 01:56:19,666 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 325 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=127, Invalid=379, Unknown=0, NotChecked=0, Total=506 [2024-11-24 01:56:19,667 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 288 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:56:19,667 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 592 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:56:19,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2024-11-24 01:56:19,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 231. [2024-11-24 01:56:19,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 186 states have (on average 1.2473118279569892) internal successors, (232), 186 states have internal predecessors, (232), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-24 01:56:19,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 312 transitions. [2024-11-24 01:56:19,689 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 312 transitions. Word has length 169 [2024-11-24 01:56:19,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:56:19,693 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 312 transitions. [2024-11-24 01:56:19,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 8.181818181818182) internal successors, (90), 13 states have internal predecessors, (90), 4 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (39), 2 states have call predecessors, (39), 4 states have call successors, (39) [2024-11-24 01:56:19,693 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 312 transitions. [2024-11-24 01:56:19,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-24 01:56:19,695 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:56:19,695 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:56:19,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2024-11-24 01:56:19,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:56:19,895 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:56:19,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:56:19,896 INFO L85 PathProgramCache]: Analyzing trace with hash 243516758, now seen corresponding path program 1 times [2024-11-24 01:56:19,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:56:19,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1827043106] [2024-11-24 01:56:19,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:56:19,897 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:56:19,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:56:19,899 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 01:56:19,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-11-24 01:56:20,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:56:20,432 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-24 01:56:20,436 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:56:22,072 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:56:22,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 167 treesize of output 59 [2024-11-24 01:56:22,162 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2024-11-24 01:56:22,162 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:56:22,522 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:56:22,522 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:56:22,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1827043106] [2024-11-24 01:56:22,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1827043106] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 01:56:22,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:56:22,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 17 [2024-11-24 01:56:22,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56519607] [2024-11-24 01:56:22,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:56:22,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:56:22,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:56:22,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:56:22,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2024-11-24 01:56:22,524 INFO L87 Difference]: Start difference. First operand 231 states and 312 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:56:24,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:56:24,265 INFO L93 Difference]: Finished difference Result 591 states and 785 transitions. [2024-11-24 01:56:24,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:56:24,267 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 169 [2024-11-24 01:56:24,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:56:24,269 INFO L225 Difference]: With dead ends: 591 [2024-11-24 01:56:24,269 INFO L226 Difference]: Without dead ends: 363 [2024-11-24 01:56:24,270 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2024-11-24 01:56:24,273 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 132 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:56:24,274 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 686 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-24 01:56:24,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-11-24 01:56:24,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 359. [2024-11-24 01:56:24,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 302 states have (on average 1.2417218543046358) internal successors, (375), 304 states have internal predecessors, (375), 48 states have call successors, (48), 8 states have call predecessors, (48), 8 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 01:56:24,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 471 transitions. [2024-11-24 01:56:24,308 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 471 transitions. Word has length 169 [2024-11-24 01:56:24,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:56:24,308 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 471 transitions. [2024-11-24 01:56:24,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:56:24,309 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 471 transitions. [2024-11-24 01:56:24,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-24 01:56:24,310 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:56:24,310 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:56:24,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2024-11-24 01:56:24,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:56:24,511 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:56:24,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:56:24,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1750627948, now seen corresponding path program 1 times [2024-11-24 01:56:24,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:56:24,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [335330034] [2024-11-24 01:56:24,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:56:24,512 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:56:24,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:56:24,514 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 01:56:24,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-11-24 01:59:51,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:59:54,397 INFO L256 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-24 01:59:54,401 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:00:03,426 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 300 proven. 0 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2024-11-24 02:00:03,427 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 02:00:03,427 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 02:00:03,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [335330034] [2024-11-24 02:00:03,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [335330034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:03,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:03,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 02:00:03,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554785597] [2024-11-24 02:00:03,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:03,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 02:00:03,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 02:00:03,428 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 02:00:03,428 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-24 02:00:03,429 INFO L87 Difference]: Start difference. First operand 359 states and 471 transitions. Second operand has 10 states, 10 states have (on average 7.5) internal successors, (75), 9 states have internal predecessors, (75), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 02:00:18,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:18,995 INFO L93 Difference]: Finished difference Result 1100 states and 1439 transitions. [2024-11-24 02:00:18,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 02:00:18,996 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 9 states have internal predecessors, (75), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 169 [2024-11-24 02:00:18,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:19,001 INFO L225 Difference]: With dead ends: 1100 [2024-11-24 02:00:19,001 INFO L226 Difference]: Without dead ends: 744 [2024-11-24 02:00:19,003 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-24 02:00:19,005 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 342 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 915 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:19,005 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 915 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 15.3s Time] [2024-11-24 02:00:19,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2024-11-24 02:00:19,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 699. [2024-11-24 02:00:19,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 586 states have (on average 1.233788395904437) internal successors, (723), 592 states have internal predecessors, (723), 96 states have call successors, (96), 16 states have call predecessors, (96), 16 states have return successors, (96), 90 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-24 02:00:19,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 915 transitions. [2024-11-24 02:00:19,087 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 915 transitions. Word has length 169 [2024-11-24 02:00:19,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:19,088 INFO L471 AbstractCegarLoop]: Abstraction has 699 states and 915 transitions. [2024-11-24 02:00:19,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 9 states have internal predecessors, (75), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 02:00:19,089 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 915 transitions. [2024-11-24 02:00:19,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-24 02:00:19,090 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:19,090 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:19,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-11-24 02:00:19,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 02:00:19,291 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:00:19,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:19,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1561921576, now seen corresponding path program 1 times [2024-11-24 02:00:19,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 02:00:19,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1365747504] [2024-11-24 02:00:19,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:19,292 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 02:00:19,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 02:00:19,294 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 02:00:19,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-11-24 02:03:41,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:03:44,114 INFO L256 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-24 02:03:44,120 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:03:53,485 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 300 proven. 0 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2024-11-24 02:03:53,485 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 02:03:53,485 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 02:03:53,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1365747504] [2024-11-24 02:03:53,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1365747504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:03:53,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:03:53,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 02:03:53,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858272685] [2024-11-24 02:03:53,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:03:53,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 02:03:53,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 02:03:53,487 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 02:03:53,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-24 02:03:53,487 INFO L87 Difference]: Start difference. First operand 699 states and 915 transitions. Second operand has 10 states, 10 states have (on average 7.5) internal successors, (75), 9 states have internal predecessors, (75), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 02:04:05,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:04:05,341 INFO L93 Difference]: Finished difference Result 1440 states and 1880 transitions. [2024-11-24 02:04:05,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 02:04:05,343 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 9 states have internal predecessors, (75), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 169 [2024-11-24 02:04:05,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:04:05,348 INFO L225 Difference]: With dead ends: 1440 [2024-11-24 02:04:05,348 INFO L226 Difference]: Without dead ends: 744 [2024-11-24 02:04:05,350 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-24 02:04:05,351 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 265 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2024-11-24 02:04:05,351 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 872 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 11.7s Time] [2024-11-24 02:04:05,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2024-11-24 02:04:05,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 699. [2024-11-24 02:04:05,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 586 states have (on average 1.2303754266211604) internal successors, (721), 592 states have internal predecessors, (721), 96 states have call successors, (96), 16 states have call predecessors, (96), 16 states have return successors, (96), 90 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-24 02:04:05,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 913 transitions. [2024-11-24 02:04:05,440 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 913 transitions. Word has length 169 [2024-11-24 02:04:05,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:04:05,441 INFO L471 AbstractCegarLoop]: Abstraction has 699 states and 913 transitions. [2024-11-24 02:04:05,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 9 states have internal predecessors, (75), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 02:04:05,441 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 913 transitions. [2024-11-24 02:04:05,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-24 02:04:05,444 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:04:05,444 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:04:05,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2024-11-24 02:04:05,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 02:04:05,645 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:04:05,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:04:05,646 INFO L85 PathProgramCache]: Analyzing trace with hash 738901014, now seen corresponding path program 1 times [2024-11-24 02:04:05,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 02:04:05,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [340715309] [2024-11-24 02:04:05,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:04:05,646 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 02:04:05,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 02:04:05,649 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 02:04:05,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-11-24 02:04:44,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:04:44,202 INFO L256 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-24 02:04:44,207 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:04:54,393 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 02:04:54,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 209 treesize of output 77 [2024-11-24 02:04:56,301 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 300 proven. 0 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2024-11-24 02:04:56,301 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 02:04:56,301 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 02:04:56,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [340715309] [2024-11-24 02:04:56,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [340715309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:04:56,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:04:56,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 02:04:56,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611449232] [2024-11-24 02:04:56,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:04:56,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-24 02:04:56,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 02:04:56,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-24 02:04:56,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-24 02:04:56,303 INFO L87 Difference]: Start difference. First operand 699 states and 913 transitions. Second operand has 12 states, 12 states have (on average 6.25) internal successors, (75), 11 states have internal predecessors, (75), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 02:05:13,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 02:05:15,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 02:05:31,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:05:31,179 INFO L93 Difference]: Finished difference Result 1435 states and 1870 transitions. [2024-11-24 02:05:31,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 02:05:31,181 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 11 states have internal predecessors, (75), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 169 [2024-11-24 02:05:31,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:05:31,186 INFO L225 Difference]: With dead ends: 1435 [2024-11-24 02:05:31,186 INFO L226 Difference]: Without dead ends: 739 [2024-11-24 02:05:31,188 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-11-24 02:05:31,189 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 289 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 786 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 1242 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.6s IncrementalHoareTripleChecker+Time [2024-11-24 02:05:31,190 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 1242 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 786 Invalid, 0 Unknown, 0 Unchecked, 29.6s Time] [2024-11-24 02:05:31,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2024-11-24 02:05:31,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 697. [2024-11-24 02:05:31,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 584 states have (on average 1.2277397260273972) internal successors, (717), 590 states have internal predecessors, (717), 96 states have call successors, (96), 16 states have call predecessors, (96), 16 states have return successors, (96), 90 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-24 02:05:31,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 909 transitions. [2024-11-24 02:05:31,271 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 909 transitions. Word has length 169 [2024-11-24 02:05:31,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:05:31,272 INFO L471 AbstractCegarLoop]: Abstraction has 697 states and 909 transitions. [2024-11-24 02:05:31,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 11 states have internal predecessors, (75), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 02:05:31,272 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 909 transitions. [2024-11-24 02:05:31,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-24 02:05:31,275 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:05:31,275 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:05:31,299 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2024-11-24 02:05:31,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 02:05:31,476 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:05:31,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:05:31,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1262580842, now seen corresponding path program 1 times [2024-11-24 02:05:31,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 02:05:31,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1128530594] [2024-11-24 02:05:31,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:05:31,478 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 02:05:31,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 02:05:31,481 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 02:05:31,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-11-24 02:05:32,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:05:32,087 INFO L256 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 02:05:32,089 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:05:32,113 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 300 proven. 0 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2024-11-24 02:05:32,113 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 02:05:32,113 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 02:05:32,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1128530594] [2024-11-24 02:05:32,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1128530594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:05:32,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:05:32,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 02:05:32,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104192180] [2024-11-24 02:05:32,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:05:32,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 02:05:32,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 02:05:32,118 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 02:05:32,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 02:05:32,118 INFO L87 Difference]: Start difference. First operand 697 states and 909 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 02:05:32,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:05:32,258 INFO L93 Difference]: Finished difference Result 1391 states and 1815 transitions. [2024-11-24 02:05:32,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 02:05:32,266 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 169 [2024-11-24 02:05:32,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:05:32,270 INFO L225 Difference]: With dead ends: 1391 [2024-11-24 02:05:32,270 INFO L226 Difference]: Without dead ends: 697 [2024-11-24 02:05:32,272 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 02:05:32,273 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 0 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:05:32,273 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 439 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 02:05:32,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2024-11-24 02:05:32,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 697. [2024-11-24 02:05:32,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 584 states have (on average 1.2243150684931507) internal successors, (715), 590 states have internal predecessors, (715), 96 states have call successors, (96), 16 states have call predecessors, (96), 16 states have return successors, (96), 90 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-24 02:05:32,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 907 transitions. [2024-11-24 02:05:32,353 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 907 transitions. Word has length 169 [2024-11-24 02:05:32,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:05:32,353 INFO L471 AbstractCegarLoop]: Abstraction has 697 states and 907 transitions. [2024-11-24 02:05:32,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 02:05:32,354 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 907 transitions. [2024-11-24 02:05:32,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-24 02:05:32,356 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:05:32,356 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:05:32,371 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2024-11-24 02:05:32,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 02:05:32,557 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:05:32,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:05:32,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1303239336, now seen corresponding path program 1 times [2024-11-24 02:05:32,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 02:05:32,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [433717152] [2024-11-24 02:05:32,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:05:32,559 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 02:05:32,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 02:05:32,562 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 02:05:32,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-11-24 02:05:33,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:05:33,371 INFO L256 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 02:05:33,375 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:05:33,432 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:05:33,432 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 02:05:33,432 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 02:05:33,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [433717152] [2024-11-24 02:05:33,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [433717152] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:05:33,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:05:33,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 02:05:33,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113451930] [2024-11-24 02:05:33,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:05:33,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:05:33,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 02:05:33,434 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:05:33,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:05:33,434 INFO L87 Difference]: Start difference. First operand 697 states and 907 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:05:33,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:05:33,560 INFO L93 Difference]: Finished difference Result 1415 states and 1843 transitions. [2024-11-24 02:05:33,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 02:05:33,561 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 171 [2024-11-24 02:05:33,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:05:33,566 INFO L225 Difference]: With dead ends: 1415 [2024-11-24 02:05:33,566 INFO L226 Difference]: Without dead ends: 721 [2024-11-24 02:05:33,568 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:05:33,569 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 0 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:05:33,569 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 575 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 02:05:33,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2024-11-24 02:05:33,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 721. [2024-11-24 02:05:33,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 608 states have (on average 1.2154605263157894) internal successors, (739), 614 states have internal predecessors, (739), 96 states have call successors, (96), 16 states have call predecessors, (96), 16 states have return successors, (96), 90 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-24 02:05:33,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 931 transitions. [2024-11-24 02:05:33,656 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 931 transitions. Word has length 171 [2024-11-24 02:05:33,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:05:33,657 INFO L471 AbstractCegarLoop]: Abstraction has 721 states and 931 transitions. [2024-11-24 02:05:33,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:05:33,658 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 931 transitions. [2024-11-24 02:05:33,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-24 02:05:33,660 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:05:33,661 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:05:33,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2024-11-24 02:05:33,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 02:05:33,862 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:05:33,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:05:33,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1223643738, now seen corresponding path program 1 times [2024-11-24 02:05:33,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 02:05:33,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1816076800] [2024-11-24 02:05:33,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:05:33,863 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 02:05:33,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 02:05:33,866 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 02:05:33,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-11-24 02:07:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:07:48,258 INFO L256 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-24 02:07:48,262 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:07:59,769 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 314 proven. 42 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2024-11-24 02:07:59,769 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:08:21,035 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 02:08:21,036 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 02:08:21,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1816076800] [2024-11-24 02:08:21,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1816076800] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 02:08:21,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 02:08:21,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 17 [2024-11-24 02:08:21,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846255874] [2024-11-24 02:08:21,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:08:21,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 02:08:21,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 02:08:21,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 02:08:21,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2024-11-24 02:08:21,038 INFO L87 Difference]: Start difference. First operand 721 states and 931 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:08:51,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:08:51,514 INFO L93 Difference]: Finished difference Result 1522 states and 1962 transitions. [2024-11-24 02:08:51,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 02:08:51,531 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 171 [2024-11-24 02:08:51,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:08:51,536 INFO L225 Difference]: With dead ends: 1522 [2024-11-24 02:08:51,536 INFO L226 Difference]: Without dead ends: 804 [2024-11-24 02:08:51,538 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 29.4s TimeCoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2024-11-24 02:08:51,539 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 100 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.3s IncrementalHoareTripleChecker+Time [2024-11-24 02:08:51,540 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 530 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 24.3s Time] [2024-11-24 02:08:51,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2024-11-24 02:08:51,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 716. [2024-11-24 02:08:51,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 603 states have (on average 1.2139303482587065) internal successors, (732), 609 states have internal predecessors, (732), 96 states have call successors, (96), 16 states have call predecessors, (96), 16 states have return successors, (96), 90 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-24 02:08:51,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 924 transitions. [2024-11-24 02:08:51,650 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 924 transitions. Word has length 171 [2024-11-24 02:08:51,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:08:51,651 INFO L471 AbstractCegarLoop]: Abstraction has 716 states and 924 transitions. [2024-11-24 02:08:51,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 02:08:51,652 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 924 transitions. [2024-11-24 02:08:51,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-24 02:08:51,653 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:08:51,654 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:08:51,679 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-11-24 02:08:51,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 02:08:51,855 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:08:51,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:08:51,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1412350110, now seen corresponding path program 1 times [2024-11-24 02:08:51,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 02:08:51,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1133785073] [2024-11-24 02:08:51,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:08:51,857 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 02:08:51,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 02:08:51,859 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 02:08:51,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1187dbf7-8b34-40d2-bc1c-982f0fb4c74a/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process