./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-39.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-39.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB --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 d2a0584d4779790e33dcddf636884f56e9964183aa5c7648270a93d40ce062b0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:46:40,606 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:46:40,712 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:46:40,725 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:46:40,725 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:46:40,765 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:46:40,765 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:46:40,765 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:46:40,766 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:46:40,766 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:46:40,766 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:46:40,766 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:46:40,766 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:46:40,767 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:46:40,767 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:46:40,768 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:46:40,769 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:46:40,769 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:46:40,770 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:46:40,770 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:46:40,770 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:46:40,770 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:46:40,771 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:46:40,771 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:46:40,771 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:46:40,771 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:46:40,771 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:46:40,771 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:46:40,771 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:46:40,772 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:46:40,772 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:46:40,772 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:46:40,773 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:46:40,773 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:46:40,773 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:46:40,773 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:46:40,773 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:46:40,773 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:46:40,774 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:46:40,774 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:46:40,774 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:46:40,774 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:46:40,774 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:46:40,774 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:46:40,774 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:46:40,774 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:46:40,775 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:46:40,775 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:46:40,775 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_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB 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 -> d2a0584d4779790e33dcddf636884f56e9964183aa5c7648270a93d40ce062b0 [2024-11-28 04:46:41,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:46:41,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:46:41,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:46:41,160 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:46:41,161 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:46:41,162 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-39.i [2024-11-28 04:46:44,179 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/data/02cd2c943/39704193b5b24989b0b800958d1285e0/FLAGb6e175e14 [2024-11-28 04:46:44,498 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:46:44,499 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-39.i [2024-11-28 04:46:44,510 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/data/02cd2c943/39704193b5b24989b0b800958d1285e0/FLAGb6e175e14 [2024-11-28 04:46:44,530 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/data/02cd2c943/39704193b5b24989b0b800958d1285e0 [2024-11-28 04:46:44,533 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:46:44,535 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:46:44,536 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:46:44,536 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:46:44,542 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:46:44,543 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:46:44" (1/1) ... [2024-11-28 04:46:44,545 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37d5ac25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:44, skipping insertion in model container [2024-11-28 04:46:44,545 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:46:44" (1/1) ... [2024-11-28 04:46:44,571 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:46:44,720 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_d25b8db2-8d11-411a-8d46-54693b03a7f2/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-39.i[916,929] [2024-11-28 04:46:44,804 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:46:44,817 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:46:44,829 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_d25b8db2-8d11-411a-8d46-54693b03a7f2/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-39.i[916,929] [2024-11-28 04:46:44,890 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:46:44,909 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:46:44,910 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:44 WrapperNode [2024-11-28 04:46:44,910 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:46:44,912 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:46:44,912 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:46:44,912 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:46:44,920 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:44" (1/1) ... [2024-11-28 04:46:44,937 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:44" (1/1) ... [2024-11-28 04:46:45,011 INFO L138 Inliner]: procedures = 29, calls = 191, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 603 [2024-11-28 04:46:45,012 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:46:45,012 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:46:45,012 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:46:45,012 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:46:45,024 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:44" (1/1) ... [2024-11-28 04:46:45,025 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:44" (1/1) ... [2024-11-28 04:46:45,036 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:44" (1/1) ... [2024-11-28 04:46:45,085 INFO L175 MemorySlicer]: Split 160 memory accesses to 5 slices as follows [2, 32, 22, 97, 7]. 61 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 3, 3, 5, 1]. The 16 writes are split as follows [0, 3, 7, 5, 1]. [2024-11-28 04:46:45,085 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:44" (1/1) ... [2024-11-28 04:46:45,085 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:44" (1/1) ... [2024-11-28 04:46:45,131 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:44" (1/1) ... [2024-11-28 04:46:45,132 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:44" (1/1) ... [2024-11-28 04:46:45,138 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:44" (1/1) ... [2024-11-28 04:46:45,141 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:44" (1/1) ... [2024-11-28 04:46:45,143 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:44" (1/1) ... [2024-11-28 04:46:45,148 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:46:45,153 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:46:45,153 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:46:45,153 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:46:45,155 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:44" (1/1) ... [2024-11-28 04:46:45,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:46:45,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:46:45,191 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:46:45,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:46:45,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:46:45,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-28 04:46:45,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-28 04:46:45,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-28 04:46:45,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-28 04:46:45,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-28 04:46:45,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 04:46:45,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 04:46:45,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 04:46:45,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 04:46:45,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 04:46:45,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-28 04:46:45,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-28 04:46:45,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-28 04:46:45,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-28 04:46:45,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-28 04:46:45,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 04:46:45,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 04:46:45,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 04:46:45,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 04:46:45,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 04:46:45,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-28 04:46:45,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-28 04:46:45,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-28 04:46:45,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-28 04:46:45,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-28 04:46:45,229 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:46:45,229 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:46:45,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:46:45,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 04:46:45,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 04:46:45,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 04:46:45,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 04:46:45,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:46:45,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:46:45,411 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:46:45,413 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:46:46,222 INFO L? ?]: Removed 188 outVars from TransFormulas that were not future-live. [2024-11-28 04:46:46,225 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:46:46,244 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:46:46,245 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:46:46,246 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:46:46 BoogieIcfgContainer [2024-11-28 04:46:46,246 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:46:46,248 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:46:46,249 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:46:46,254 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:46:46,255 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:46:44" (1/3) ... [2024-11-28 04:46:46,256 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@562fb6a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:46:46, skipping insertion in model container [2024-11-28 04:46:46,256 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:46:44" (2/3) ... [2024-11-28 04:46:46,257 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@562fb6a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:46:46, skipping insertion in model container [2024-11-28 04:46:46,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:46:46" (3/3) ... [2024-11-28 04:46:46,258 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-39.i [2024-11-28 04:46:46,277 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:46:46,279 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-39.i that has 2 procedures, 120 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 04:46:46,359 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:46:46,377 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;@4854c8da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:46:46,378 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:46:46,382 INFO L276 IsEmpty]: Start isEmpty. Operand has 120 states, 101 states have (on average 1.4356435643564356) internal successors, (145), 102 states have internal predecessors, (145), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 04:46:46,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-28 04:46:46,398 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:46:46,399 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:46,399 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:46:46,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:46,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1938211499, now seen corresponding path program 1 times [2024-11-28 04:46:46,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:46:46,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58898170] [2024-11-28 04:46:46,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:46,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:46:46,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:46,811 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-11-28 04:46:46,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:46:46,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58898170] [2024-11-28 04:46:46,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58898170] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:46:46,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [682302263] [2024-11-28 04:46:46,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:46,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:46,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:46:46,818 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:46:46,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:46:47,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:47,172 INFO L256 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:46:47,187 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:46:47,259 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-11-28 04:46:47,259 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:46:47,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [682302263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:47,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:46:47,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 04:46:47,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129583136] [2024-11-28 04:46:47,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:47,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:46:47,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:46:47,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:46:47,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:46:47,297 INFO L87 Difference]: Start difference. First operand has 120 states, 101 states have (on average 1.4356435643564356) internal successors, (145), 102 states have internal predecessors, (145), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 04:46:47,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:46:47,336 INFO L93 Difference]: Finished difference Result 233 states and 364 transitions. [2024-11-28 04:46:47,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:46:47,338 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 128 [2024-11-28 04:46:47,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:46:47,347 INFO L225 Difference]: With dead ends: 233 [2024-11-28 04:46:47,347 INFO L226 Difference]: Without dead ends: 116 [2024-11-28 04:46:47,353 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:46:47,358 INFO L435 NwaCegarLoop]: 170 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, 170 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 [2024-11-28 04:46:47,359 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:46:47,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-28 04:46:47,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-11-28 04:46:47,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 98 states have (on average 1.4081632653061225) internal successors, (138), 98 states have internal predecessors, (138), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 04:46:47,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 170 transitions. [2024-11-28 04:46:47,406 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 170 transitions. Word has length 128 [2024-11-28 04:46:47,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:46:47,406 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 170 transitions. [2024-11-28 04:46:47,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 04:46:47,407 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 170 transitions. [2024-11-28 04:46:47,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-28 04:46:47,412 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:46:47,412 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:47,422 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:46:47,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:47,613 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:46:47,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:47,614 INFO L85 PathProgramCache]: Analyzing trace with hash -321601841, now seen corresponding path program 1 times [2024-11-28 04:46:47,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:46:47,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905930401] [2024-11-28 04:46:47,614 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:47,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:46:47,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:53,161 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:46:53,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:46:53,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905930401] [2024-11-28 04:46:53,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905930401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:53,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:53,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-28 04:46:53,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908221511] [2024-11-28 04:46:53,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:53,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 04:46:53,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:46:53,166 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 04:46:53,167 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:46:53,167 INFO L87 Difference]: Start difference. First operand 116 states and 170 transitions. Second operand has 15 states, 13 states have (on average 3.923076923076923) internal successors, (51), 15 states have internal predecessors, (51), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-28 04:46:55,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:46:55,865 INFO L93 Difference]: Finished difference Result 390 states and 571 transitions. [2024-11-28 04:46:55,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:46:55,866 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 3.923076923076923) internal successors, (51), 15 states have internal predecessors, (51), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) Word has length 128 [2024-11-28 04:46:55,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:46:55,870 INFO L225 Difference]: With dead ends: 390 [2024-11-28 04:46:55,870 INFO L226 Difference]: Without dead ends: 277 [2024-11-28 04:46:55,871 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=63, Invalid=399, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:46:55,872 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 298 mSDsluCounter, 1741 mSDsCounter, 0 mSdLazyCounter, 1181 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 1900 SdHoareTripleChecker+Invalid, 1210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:46:55,873 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 1900 Invalid, 1210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1181 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-28 04:46:55,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2024-11-28 04:46:55,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 271. [2024-11-28 04:46:55,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 239 states have (on average 1.4351464435146444) internal successors, (343), 241 states have internal predecessors, (343), 28 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-28 04:46:55,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 399 transitions. [2024-11-28 04:46:55,942 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 399 transitions. Word has length 128 [2024-11-28 04:46:55,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:46:55,943 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 399 transitions. [2024-11-28 04:46:55,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 3.923076923076923) internal successors, (51), 15 states have internal predecessors, (51), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-28 04:46:55,947 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 399 transitions. [2024-11-28 04:46:55,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-28 04:46:55,950 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:46:55,951 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:55,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:46:55,953 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:46:55,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:55,955 INFO L85 PathProgramCache]: Analyzing trace with hash 358456529, now seen corresponding path program 1 times [2024-11-28 04:46:55,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:46:55,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350605338] [2024-11-28 04:46:55,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:55,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:46:56,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:57,196 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:46:57,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:46:57,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350605338] [2024-11-28 04:46:57,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350605338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:57,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:57,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 04:46:57,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880189714] [2024-11-28 04:46:57,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:57,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:46:57,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:46:57,198 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:46:57,198 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:46:57,198 INFO L87 Difference]: Start difference. First operand 271 states and 399 transitions. Second operand has 9 states, 7 states have (on average 7.285714285714286) internal successors, (51), 9 states have internal predecessors, (51), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-28 04:46:57,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:46:57,861 INFO L93 Difference]: Finished difference Result 629 states and 924 transitions. [2024-11-28 04:46:57,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:46:57,862 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.285714285714286) internal successors, (51), 9 states have internal predecessors, (51), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) Word has length 128 [2024-11-28 04:46:57,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:46:57,866 INFO L225 Difference]: With dead ends: 629 [2024-11-28 04:46:57,866 INFO L226 Difference]: Without dead ends: 361 [2024-11-28 04:46:57,867 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:46:57,868 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 127 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:46:57,868 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 833 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:46:57,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-11-28 04:46:57,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 297. [2024-11-28 04:46:57,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 264 states have (on average 1.4318181818181819) internal successors, (378), 266 states have internal predecessors, (378), 28 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-28 04:46:57,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 434 transitions. [2024-11-28 04:46:57,899 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 434 transitions. Word has length 128 [2024-11-28 04:46:57,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:46:57,900 INFO L471 AbstractCegarLoop]: Abstraction has 297 states and 434 transitions. [2024-11-28 04:46:57,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.285714285714286) internal successors, (51), 9 states have internal predecessors, (51), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-28 04:46:57,901 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 434 transitions. [2024-11-28 04:46:57,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-28 04:46:57,903 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:46:57,903 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:57,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:46:57,903 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:46:57,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:57,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1909949743, now seen corresponding path program 1 times [2024-11-28 04:46:57,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:46:57,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025870531] [2024-11-28 04:46:57,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:57,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:46:57,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:58,880 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:46:58,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:46:58,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025870531] [2024-11-28 04:46:58,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025870531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:58,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:58,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:46:58,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647468432] [2024-11-28 04:46:58,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:58,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:46:58,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:46:58,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:46:58,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:46:58,885 INFO L87 Difference]: Start difference. First operand 297 states and 434 transitions. Second operand has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 04:46:59,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:46:59,590 INFO L93 Difference]: Finished difference Result 599 states and 871 transitions. [2024-11-28 04:46:59,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:46:59,591 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 128 [2024-11-28 04:46:59,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:46:59,594 INFO L225 Difference]: With dead ends: 599 [2024-11-28 04:46:59,595 INFO L226 Difference]: Without dead ends: 305 [2024-11-28 04:46:59,596 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:46:59,599 INFO L435 NwaCegarLoop]: 206 mSDtfsCounter, 124 mSDsluCounter, 878 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 1084 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:46:59,599 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 1084 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:46:59,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2024-11-28 04:46:59,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 239. [2024-11-28 04:46:59,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 211 states have (on average 1.4170616113744077) internal successors, (299), 212 states have internal predecessors, (299), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:46:59,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 345 transitions. [2024-11-28 04:46:59,627 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 345 transitions. Word has length 128 [2024-11-28 04:46:59,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:46:59,628 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 345 transitions. [2024-11-28 04:46:59,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 04:46:59,629 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 345 transitions. [2024-11-28 04:46:59,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-28 04:46:59,631 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:46:59,631 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:59,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:46:59,632 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:46:59,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:59,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1229891373, now seen corresponding path program 1 times [2024-11-28 04:46:59,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:46:59,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260902291] [2024-11-28 04:46:59,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:59,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:46:59,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:01,929 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:47:01,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:01,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260902291] [2024-11-28 04:47:01,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260902291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:01,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:01,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 04:47:01,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98086746] [2024-11-28 04:47:01,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:01,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:47:01,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:01,932 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:47:01,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:47:01,933 INFO L87 Difference]: Start difference. First operand 239 states and 345 transitions. Second operand has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 04:47:03,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:03,767 INFO L93 Difference]: Finished difference Result 559 states and 809 transitions. [2024-11-28 04:47:03,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:47:03,769 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 128 [2024-11-28 04:47:03,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:03,773 INFO L225 Difference]: With dead ends: 559 [2024-11-28 04:47:03,776 INFO L226 Difference]: Without dead ends: 323 [2024-11-28 04:47:03,777 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:47:03,781 INFO L435 NwaCegarLoop]: 185 mSDtfsCounter, 260 mSDsluCounter, 994 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:03,782 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 1179 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1040 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 04:47:03,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-11-28 04:47:03,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 260. [2024-11-28 04:47:03,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 232 states have (on average 1.4224137931034482) internal successors, (330), 233 states have internal predecessors, (330), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:47:03,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 376 transitions. [2024-11-28 04:47:03,822 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 376 transitions. Word has length 128 [2024-11-28 04:47:03,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:03,822 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 376 transitions. [2024-11-28 04:47:03,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 04:47:03,823 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 376 transitions. [2024-11-28 04:47:03,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-28 04:47:03,826 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:03,826 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:03,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:47:03,826 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:47:03,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:03,827 INFO L85 PathProgramCache]: Analyzing trace with hash -2071281815, now seen corresponding path program 1 times [2024-11-28 04:47:03,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:03,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194447738] [2024-11-28 04:47:03,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:03,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:03,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:06,311 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:47:06,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:06,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194447738] [2024-11-28 04:47:06,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194447738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:06,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:06,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 04:47:06,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867987042] [2024-11-28 04:47:06,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:06,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:47:06,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:06,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:47:06,314 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:47:06,315 INFO L87 Difference]: Start difference. First operand 260 states and 376 transitions. Second operand has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 04:47:07,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:07,370 INFO L93 Difference]: Finished difference Result 591 states and 852 transitions. [2024-11-28 04:47:07,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:47:07,371 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 129 [2024-11-28 04:47:07,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:07,374 INFO L225 Difference]: With dead ends: 591 [2024-11-28 04:47:07,374 INFO L226 Difference]: Without dead ends: 334 [2024-11-28 04:47:07,375 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:47:07,378 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 129 mSDsluCounter, 1231 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 1393 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:07,380 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 1393 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:47:07,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-11-28 04:47:07,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 235. [2024-11-28 04:47:07,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 207 states have (on average 1.4154589371980677) internal successors, (293), 208 states have internal predecessors, (293), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:47:07,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 339 transitions. [2024-11-28 04:47:07,422 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 339 transitions. Word has length 129 [2024-11-28 04:47:07,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:07,423 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 339 transitions. [2024-11-28 04:47:07,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 04:47:07,424 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 339 transitions. [2024-11-28 04:47:07,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-28 04:47:07,425 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:07,426 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:07,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:47:07,426 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:47:07,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:07,427 INFO L85 PathProgramCache]: Analyzing trace with hash -541234758, now seen corresponding path program 1 times [2024-11-28 04:47:07,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:07,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108112019] [2024-11-28 04:47:07,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:07,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:07,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:07,969 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:47:07,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:07,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108112019] [2024-11-28 04:47:07,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108112019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:07,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:07,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:47:07,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482489980] [2024-11-28 04:47:07,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:07,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:47:07,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:07,972 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:47:07,972 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:47:07,972 INFO L87 Difference]: Start difference. First operand 235 states and 339 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:47:08,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:08,366 INFO L93 Difference]: Finished difference Result 633 states and 910 transitions. [2024-11-28 04:47:08,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:47:08,367 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 130 [2024-11-28 04:47:08,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:08,371 INFO L225 Difference]: With dead ends: 633 [2024-11-28 04:47:08,374 INFO L226 Difference]: Without dead ends: 401 [2024-11-28 04:47:08,375 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:47:08,375 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 118 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:08,375 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 784 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:47:08,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2024-11-28 04:47:08,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 258. [2024-11-28 04:47:08,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 230 states have (on average 1.4217391304347826) internal successors, (327), 231 states have internal predecessors, (327), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:47:08,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 373 transitions. [2024-11-28 04:47:08,416 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 373 transitions. Word has length 130 [2024-11-28 04:47:08,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:08,417 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 373 transitions. [2024-11-28 04:47:08,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:47:08,417 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 373 transitions. [2024-11-28 04:47:08,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-28 04:47:08,420 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:08,420 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:08,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:47:08,420 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:47:08,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:08,421 INFO L85 PathProgramCache]: Analyzing trace with hash 420940497, now seen corresponding path program 1 times [2024-11-28 04:47:08,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:08,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898210886] [2024-11-28 04:47:08,422 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:08,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:08,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:10,200 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:47:10,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:10,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898210886] [2024-11-28 04:47:10,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898210886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:10,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:10,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:47:10,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993272790] [2024-11-28 04:47:10,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:10,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:47:10,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:10,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:47:10,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:47:10,203 INFO L87 Difference]: Start difference. First operand 258 states and 373 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:47:11,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:11,248 INFO L93 Difference]: Finished difference Result 612 states and 882 transitions. [2024-11-28 04:47:11,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:47:11,250 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 131 [2024-11-28 04:47:11,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:11,252 INFO L225 Difference]: With dead ends: 612 [2024-11-28 04:47:11,252 INFO L226 Difference]: Without dead ends: 357 [2024-11-28 04:47:11,256 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:47:11,257 INFO L435 NwaCegarLoop]: 245 mSDtfsCounter, 120 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 1351 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:11,258 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 1351 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:47:11,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2024-11-28 04:47:11,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 258. [2024-11-28 04:47:11,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 230 states have (on average 1.4173913043478261) internal successors, (326), 231 states have internal predecessors, (326), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:47:11,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 372 transitions. [2024-11-28 04:47:11,317 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 372 transitions. Word has length 131 [2024-11-28 04:47:11,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:11,322 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 372 transitions. [2024-11-28 04:47:11,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:47:11,322 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 372 transitions. [2024-11-28 04:47:11,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-28 04:47:11,324 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:11,324 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:11,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:47:11,324 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:47:11,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:11,325 INFO L85 PathProgramCache]: Analyzing trace with hash -842538372, now seen corresponding path program 1 times [2024-11-28 04:47:11,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:11,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951727879] [2024-11-28 04:47:11,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:11,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:11,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:11,603 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:47:11,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:11,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951727879] [2024-11-28 04:47:11,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951727879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:11,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:11,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:47:11,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790141438] [2024-11-28 04:47:11,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:11,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:47:11,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:11,605 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:47:11,605 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:47:11,605 INFO L87 Difference]: Start difference. First operand 258 states and 372 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:47:12,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:12,138 INFO L93 Difference]: Finished difference Result 595 states and 853 transitions. [2024-11-28 04:47:12,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:47:12,139 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 133 [2024-11-28 04:47:12,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:12,142 INFO L225 Difference]: With dead ends: 595 [2024-11-28 04:47:12,142 INFO L226 Difference]: Without dead ends: 340 [2024-11-28 04:47:12,143 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 [2024-11-28 04:47:12,144 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 132 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:12,145 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 521 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:47:12,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-11-28 04:47:12,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 337. [2024-11-28 04:47:12,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 295 states have (on average 1.3966101694915254) internal successors, (412), 297 states have internal predecessors, (412), 34 states have call successors, (34), 7 states have call predecessors, (34), 7 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 04:47:12,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 480 transitions. [2024-11-28 04:47:12,206 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 480 transitions. Word has length 133 [2024-11-28 04:47:12,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:12,207 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 480 transitions. [2024-11-28 04:47:12,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:47:12,207 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 480 transitions. [2024-11-28 04:47:12,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-28 04:47:12,209 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:12,209 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:12,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:47:12,210 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:47:12,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:12,210 INFO L85 PathProgramCache]: Analyzing trace with hash -665800542, now seen corresponding path program 1 times [2024-11-28 04:47:12,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:12,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736337065] [2024-11-28 04:47:12,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:12,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:12,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:12,408 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:47:12,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:12,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736337065] [2024-11-28 04:47:12,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736337065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:12,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:12,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:47:12,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839608320] [2024-11-28 04:47:12,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:12,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:47:12,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:12,410 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:47:12,410 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:47:12,410 INFO L87 Difference]: Start difference. First operand 337 states and 480 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:47:12,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:12,877 INFO L93 Difference]: Finished difference Result 671 states and 952 transitions. [2024-11-28 04:47:12,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:47:12,878 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 134 [2024-11-28 04:47:12,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:12,880 INFO L225 Difference]: With dead ends: 671 [2024-11-28 04:47:12,881 INFO L226 Difference]: Without dead ends: 337 [2024-11-28 04:47:12,882 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 [2024-11-28 04:47:12,882 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 121 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:12,883 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 563 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:47:12,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2024-11-28 04:47:12,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 334. [2024-11-28 04:47:12,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 291 states have (on average 1.388316151202749) internal successors, (404), 293 states have internal predecessors, (404), 34 states have call successors, (34), 8 states have call predecessors, (34), 8 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 04:47:12,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 472 transitions. [2024-11-28 04:47:12,928 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 472 transitions. Word has length 134 [2024-11-28 04:47:12,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:12,929 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 472 transitions. [2024-11-28 04:47:12,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:47:12,929 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 472 transitions. [2024-11-28 04:47:12,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-28 04:47:12,931 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:12,931 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:12,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:47:12,931 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:47:12,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:12,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1251066523, now seen corresponding path program 1 times [2024-11-28 04:47:12,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:12,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381003455] [2024-11-28 04:47:12,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:12,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:12,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:13,247 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:47:13,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:13,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381003455] [2024-11-28 04:47:13,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381003455] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:13,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:13,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:47:13,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425271853] [2024-11-28 04:47:13,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:13,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:47:13,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:13,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:47:13,249 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:47:13,249 INFO L87 Difference]: Start difference. First operand 334 states and 472 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:47:13,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:13,640 INFO L93 Difference]: Finished difference Result 585 states and 812 transitions. [2024-11-28 04:47:13,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:47:13,641 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 134 [2024-11-28 04:47:13,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:13,645 INFO L225 Difference]: With dead ends: 585 [2024-11-28 04:47:13,645 INFO L226 Difference]: Without dead ends: 583 [2024-11-28 04:47:13,645 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:47:13,646 INFO L435 NwaCegarLoop]: 194 mSDtfsCounter, 102 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:13,646 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 1069 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:47:13,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2024-11-28 04:47:13,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 392. [2024-11-28 04:47:13,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 349 states have (on average 1.3581661891117478) internal successors, (474), 351 states have internal predecessors, (474), 34 states have call successors, (34), 8 states have call predecessors, (34), 8 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 04:47:13,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 542 transitions. [2024-11-28 04:47:13,699 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 542 transitions. Word has length 134 [2024-11-28 04:47:13,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:13,700 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 542 transitions. [2024-11-28 04:47:13,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:47:13,700 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 542 transitions. [2024-11-28 04:47:13,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-28 04:47:13,702 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:13,702 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:13,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 04:47:13,703 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:47:13,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:13,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1807259723, now seen corresponding path program 1 times [2024-11-28 04:47:13,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:13,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395774951] [2024-11-28 04:47:13,704 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:13,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:13,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:14,704 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:47:14,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:14,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395774951] [2024-11-28 04:47:14,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395774951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:14,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:14,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 04:47:14,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937388197] [2024-11-28 04:47:14,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:14,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:47:14,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:14,706 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:47:14,706 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:47:14,706 INFO L87 Difference]: Start difference. First operand 392 states and 542 transitions. Second operand has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:47:15,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:15,808 INFO L93 Difference]: Finished difference Result 909 states and 1263 transitions. [2024-11-28 04:47:15,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:47:15,808 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 135 [2024-11-28 04:47:15,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:15,812 INFO L225 Difference]: With dead ends: 909 [2024-11-28 04:47:15,812 INFO L226 Difference]: Without dead ends: 520 [2024-11-28 04:47:15,814 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:47:15,814 INFO L435 NwaCegarLoop]: 221 mSDtfsCounter, 324 mSDsluCounter, 881 mSDsCounter, 0 mSdLazyCounter, 876 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 1102 SdHoareTripleChecker+Invalid, 900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:15,815 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 1102 Invalid, 900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 876 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:47:15,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-11-28 04:47:15,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 433. [2024-11-28 04:47:15,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 390 states have (on average 1.3692307692307693) internal successors, (534), 392 states have internal predecessors, (534), 34 states have call successors, (34), 8 states have call predecessors, (34), 8 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 04:47:15,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 602 transitions. [2024-11-28 04:47:15,874 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 602 transitions. Word has length 135 [2024-11-28 04:47:15,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:15,874 INFO L471 AbstractCegarLoop]: Abstraction has 433 states and 602 transitions. [2024-11-28 04:47:15,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:47:15,875 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 602 transitions. [2024-11-28 04:47:15,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-28 04:47:15,877 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:15,877 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:15,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 04:47:15,878 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:47:15,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:15,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1348992656, now seen corresponding path program 1 times [2024-11-28 04:47:15,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:15,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552341576] [2024-11-28 04:47:15,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:15,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:15,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:16,958 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:47:16,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:16,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552341576] [2024-11-28 04:47:16,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552341576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:16,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:16,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 04:47:16,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521278771] [2024-11-28 04:47:16,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:16,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:47:16,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:16,960 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:47:16,960 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:47:16,960 INFO L87 Difference]: Start difference. First operand 433 states and 602 transitions. Second operand has 11 states, 10 states have (on average 5.9) internal successors, (59), 11 states have internal predecessors, (59), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 04:47:17,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:17,998 INFO L93 Difference]: Finished difference Result 936 states and 1297 transitions. [2024-11-28 04:47:17,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:47:17,998 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.9) internal successors, (59), 11 states have internal predecessors, (59), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 136 [2024-11-28 04:47:17,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:18,002 INFO L225 Difference]: With dead ends: 936 [2024-11-28 04:47:18,002 INFO L226 Difference]: Without dead ends: 506 [2024-11-28 04:47:18,004 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:47:18,005 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 261 mSDsluCounter, 1099 mSDsCounter, 0 mSdLazyCounter, 787 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:18,006 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 1263 Invalid, 817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 787 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:47:18,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2024-11-28 04:47:18,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 446. [2024-11-28 04:47:18,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 403 states have (on average 1.3598014888337469) internal successors, (548), 405 states have internal predecessors, (548), 34 states have call successors, (34), 8 states have call predecessors, (34), 8 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 04:47:18,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 616 transitions. [2024-11-28 04:47:18,057 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 616 transitions. Word has length 136 [2024-11-28 04:47:18,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:18,058 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 616 transitions. [2024-11-28 04:47:18,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.9) internal successors, (59), 11 states have internal predecessors, (59), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 04:47:18,061 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 616 transitions. [2024-11-28 04:47:18,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-28 04:47:18,064 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:18,064 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:18,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 04:47:18,064 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:47:18,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:18,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1302307900, now seen corresponding path program 1 times [2024-11-28 04:47:18,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:18,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976451435] [2024-11-28 04:47:18,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:18,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:18,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:18,232 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:47:18,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:18,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976451435] [2024-11-28 04:47:18,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976451435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:18,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:18,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:47:18,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841807973] [2024-11-28 04:47:18,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:18,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:47:18,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:18,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:47:18,236 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:47:18,236 INFO L87 Difference]: Start difference. First operand 446 states and 616 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:47:18,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:18,623 INFO L93 Difference]: Finished difference Result 1161 states and 1607 transitions. [2024-11-28 04:47:18,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:47:18,623 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 136 [2024-11-28 04:47:18,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:18,627 INFO L225 Difference]: With dead ends: 1161 [2024-11-28 04:47:18,627 INFO L226 Difference]: Without dead ends: 718 [2024-11-28 04:47:18,629 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 [2024-11-28 04:47:18,630 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 112 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:18,630 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 434 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:47:18,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2024-11-28 04:47:18,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 504. [2024-11-28 04:47:18,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 461 states have (on average 1.3622559652928417) internal successors, (628), 463 states have internal predecessors, (628), 34 states have call successors, (34), 8 states have call predecessors, (34), 8 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 04:47:18,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 696 transitions. [2024-11-28 04:47:18,688 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 696 transitions. Word has length 136 [2024-11-28 04:47:18,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:18,689 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 696 transitions. [2024-11-28 04:47:18,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:47:18,689 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 696 transitions. [2024-11-28 04:47:18,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-28 04:47:18,692 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:18,692 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:18,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 04:47:18,692 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:47:18,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:18,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1343544007, now seen corresponding path program 1 times [2024-11-28 04:47:18,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:18,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913385666] [2024-11-28 04:47:18,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:18,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:18,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:18,871 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:47:18,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:18,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913385666] [2024-11-28 04:47:18,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913385666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:18,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:18,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:47:18,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983165159] [2024-11-28 04:47:18,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:18,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:47:18,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:18,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:47:18,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:47:18,872 INFO L87 Difference]: Start difference. First operand 504 states and 696 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:47:19,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:19,307 INFO L93 Difference]: Finished difference Result 1137 states and 1567 transitions. [2024-11-28 04:47:19,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:47:19,308 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 136 [2024-11-28 04:47:19,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:19,311 INFO L225 Difference]: With dead ends: 1137 [2024-11-28 04:47:19,311 INFO L226 Difference]: Without dead ends: 636 [2024-11-28 04:47:19,312 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 [2024-11-28 04:47:19,314 INFO L435 NwaCegarLoop]: 240 mSDtfsCounter, 111 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:19,315 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 739 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:47:19,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2024-11-28 04:47:19,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 340. [2024-11-28 04:47:19,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 319 states have (on average 1.3605015673981191) internal successors, (434), 319 states have internal predecessors, (434), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 04:47:19,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 466 transitions. [2024-11-28 04:47:19,349 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 466 transitions. Word has length 136 [2024-11-28 04:47:19,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:19,350 INFO L471 AbstractCegarLoop]: Abstraction has 340 states and 466 transitions. [2024-11-28 04:47:19,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:47:19,350 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 466 transitions. [2024-11-28 04:47:19,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-28 04:47:19,352 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:19,352 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:19,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 04:47:19,352 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:47:19,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:19,354 INFO L85 PathProgramCache]: Analyzing trace with hash 55100714, now seen corresponding path program 1 times [2024-11-28 04:47:19,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:19,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407883065] [2024-11-28 04:47:19,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:19,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:19,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:19,748 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:47:19,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:19,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407883065] [2024-11-28 04:47:19,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407883065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:19,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:19,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:47:19,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670107256] [2024-11-28 04:47:19,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:19,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:47:19,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:19,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:47:19,751 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:47:19,752 INFO L87 Difference]: Start difference. First operand 340 states and 466 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:47:20,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:20,161 INFO L93 Difference]: Finished difference Result 462 states and 617 transitions. [2024-11-28 04:47:20,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:47:20,162 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 137 [2024-11-28 04:47:20,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:20,166 INFO L225 Difference]: With dead ends: 462 [2024-11-28 04:47:20,167 INFO L226 Difference]: Without dead ends: 460 [2024-11-28 04:47:20,167 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:47:20,169 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 92 mSDsluCounter, 1129 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 1339 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:20,170 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 1339 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:47:20,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2024-11-28 04:47:20,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 398. [2024-11-28 04:47:20,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 377 states have (on average 1.3262599469496021) internal successors, (500), 377 states have internal predecessors, (500), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 04:47:20,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 532 transitions. [2024-11-28 04:47:20,205 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 532 transitions. Word has length 137 [2024-11-28 04:47:20,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:20,205 INFO L471 AbstractCegarLoop]: Abstraction has 398 states and 532 transitions. [2024-11-28 04:47:20,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:47:20,206 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 532 transitions. [2024-11-28 04:47:20,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-28 04:47:20,208 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:20,208 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:20,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 04:47:20,209 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:47:20,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:20,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1502374088, now seen corresponding path program 1 times [2024-11-28 04:47:20,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:20,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692444584] [2024-11-28 04:47:20,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:20,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:20,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:47:20,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [131983653] [2024-11-28 04:47:20,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:20,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:20,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:47:20,295 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:47:20,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:47:20,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:47:20,867 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:47:21,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:47:21,335 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 04:47:21,336 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 04:47:21,337 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 04:47:21,352 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 04:47:21,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:21,544 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:21,673 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:47:21,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:47:21 BoogieIcfgContainer [2024-11-28 04:47:21,678 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:47:21,679 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:47:21,679 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:47:21,679 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:47:21,680 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:46:46" (3/4) ... [2024-11-28 04:47:21,682 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 04:47:21,683 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:47:21,684 INFO L158 Benchmark]: Toolchain (without parser) took 37149.88ms. Allocated memory was 117.4MB in the beginning and 629.1MB in the end (delta: 511.7MB). Free memory was 94.5MB in the beginning and 381.5MB in the end (delta: -287.0MB). Peak memory consumption was 223.0MB. Max. memory is 16.1GB. [2024-11-28 04:47:21,684 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 80.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:47:21,685 INFO L158 Benchmark]: CACSL2BoogieTranslator took 374.79ms. Allocated memory is still 117.4MB. Free memory was 94.5MB in the beginning and 79.0MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:47:21,685 INFO L158 Benchmark]: Boogie Procedure Inliner took 99.97ms. Allocated memory is still 117.4MB. Free memory was 79.0MB in the beginning and 75.1MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:47:21,685 INFO L158 Benchmark]: Boogie Preprocessor took 136.13ms. Allocated memory is still 117.4MB. Free memory was 75.1MB in the beginning and 70.4MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:47:21,685 INFO L158 Benchmark]: RCFGBuilder took 1093.06ms. Allocated memory is still 117.4MB. Free memory was 70.4MB in the beginning and 87.2MB in the end (delta: -16.8MB). Peak memory consumption was 39.9MB. Max. memory is 16.1GB. [2024-11-28 04:47:21,685 INFO L158 Benchmark]: TraceAbstraction took 35430.17ms. Allocated memory was 117.4MB in the beginning and 629.1MB in the end (delta: 511.7MB). Free memory was 86.6MB in the beginning and 381.5MB in the end (delta: -294.9MB). Peak memory consumption was 216.6MB. Max. memory is 16.1GB. [2024-11-28 04:47:21,686 INFO L158 Benchmark]: Witness Printer took 4.27ms. Allocated memory is still 629.1MB. Free memory was 381.5MB in the beginning and 381.5MB in the end (delta: 85.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:47:21,690 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 80.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 374.79ms. Allocated memory is still 117.4MB. Free memory was 94.5MB in the beginning and 79.0MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 99.97ms. Allocated memory is still 117.4MB. Free memory was 79.0MB in the beginning and 75.1MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 136.13ms. Allocated memory is still 117.4MB. Free memory was 75.1MB in the beginning and 70.4MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1093.06ms. Allocated memory is still 117.4MB. Free memory was 70.4MB in the beginning and 87.2MB in the end (delta: -16.8MB). Peak memory consumption was 39.9MB. Max. memory is 16.1GB. * TraceAbstraction took 35430.17ms. Allocated memory was 117.4MB in the beginning and 629.1MB in the end (delta: 511.7MB). Free memory was 86.6MB in the beginning and 381.5MB in the end (delta: -294.9MB). Peak memory consumption was 216.6MB. Max. memory is 16.1GB. * Witness Printer took 4.27ms. Allocated memory is still 629.1MB. Free memory was 381.5MB in the beginning and 381.5MB in the end (delta: 85.8kB). 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 shiftLeft at line 47, overapproximation of shiftLeft at line 89, overapproximation of someBinaryFLOATComparisonOperation at line 61, overapproximation of someBinaryFLOATComparisonOperation at line 63, overapproximation of someBinaryFLOATComparisonOperation at line 65, overapproximation of someBinaryFLOATComparisonOperation at line 65, overapproximation of someBinaryFLOATComparisonOperation at line 63, overapproximation of someBinaryFLOATComparisonOperation at line 61. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] float float_Array_0[3] = { 1.75, 7.8, 1.1 }; [L22-L24] float float_Array_0[3] = { 1.75, 7.8, 1.1 }; [L22-L24] float float_Array_0[3] = { 1.75, 7.8, 1.1 }; [L22-L24] float float_Array_0[3] = { 1.75, 7.8, 1.1 }; [L25-L27] signed long int signed_long_int_Array_0[3] = { 1230482582, 32, 5 }; [L25-L27] signed long int signed_long_int_Array_0[3] = { 1230482582, 32, 5 }; [L25-L27] signed long int signed_long_int_Array_0[3] = { 1230482582, 32, 5 }; [L25-L27] signed long int signed_long_int_Array_0[3] = { 1230482582, 32, 5 }; [L28-L30] signed short int signed_short_int_Array_0[5] = { 32, 10, 1000, 0, -5 }; [L28-L30] signed short int signed_short_int_Array_0[5] = { 32, 10, 1000, 0, -5 }; [L28-L30] signed short int signed_short_int_Array_0[5] = { 32, 10, 1000, 0, -5 }; [L28-L30] signed short int signed_short_int_Array_0[5] = { 32, 10, 1000, 0, -5 }; [L28-L30] signed short int signed_short_int_Array_0[5] = { 32, 10, 1000, 0, -5 }; [L28-L30] signed short int signed_short_int_Array_0[5] = { 32, 10, 1000, 0, -5 }; [L31-L33] unsigned char unsigned_char_Array_0[1] = { 64 }; [L31-L33] unsigned char unsigned_char_Array_0[1] = { 64 }; VAL [float_Array_0={4:0}, isInitial=0, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L93] isInitial = 1 [L94] FCALL initially() [L96] FCALL updateLastVariables() [L97] CALL updateVariables() [L60] float_Array_0[0] = __VERIFIER_nondet_float() [L61] EXPR float_Array_0[0] [L61] EXPR float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L61] EXPR float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F [L61] EXPR float_Array_0[0] [L61] EXPR float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L61] EXPR (float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854776000e+12F && float_Array_0[0] >= 1.0e-20F ) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L61] EXPR (float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854776000e+12F && float_Array_0[0] >= 1.0e-20F ) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L61] CALL assume_abort_if_not((float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854776000e+12F && float_Array_0[0] >= 1.0e-20F )) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L61] RET assume_abort_if_not((float_Array_0[0] >= -922337.2036854776000e+13F && float_Array_0[0] <= -1.0e-20F) || (float_Array_0[0] <= 9223372.036854776000e+12F && float_Array_0[0] >= 1.0e-20F )) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L62] float_Array_0[1] = __VERIFIER_nondet_float() [L63] EXPR float_Array_0[1] [L63] EXPR float_Array_0[1] >= -922337.2036854776000e+13F && float_Array_0[1] <= -1.0e-20F VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L63] EXPR float_Array_0[1] >= -922337.2036854776000e+13F && float_Array_0[1] <= -1.0e-20F [L63] EXPR float_Array_0[1] [L63] EXPR float_Array_0[1] >= -922337.2036854776000e+13F && float_Array_0[1] <= -1.0e-20F VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L63] EXPR (float_Array_0[1] >= -922337.2036854776000e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854776000e+12F && float_Array_0[1] >= 1.0e-20F ) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L63] EXPR (float_Array_0[1] >= -922337.2036854776000e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854776000e+12F && float_Array_0[1] >= 1.0e-20F ) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L63] CALL assume_abort_if_not((float_Array_0[1] >= -922337.2036854776000e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854776000e+12F && float_Array_0[1] >= 1.0e-20F )) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L63] RET assume_abort_if_not((float_Array_0[1] >= -922337.2036854776000e+13F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854776000e+12F && float_Array_0[1] >= 1.0e-20F )) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L64] float_Array_0[2] = __VERIFIER_nondet_float() [L65] EXPR float_Array_0[2] [L65] EXPR float_Array_0[2] >= -922337.2036854776000e+13F && float_Array_0[2] <= -1.0e-20F VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L65] EXPR float_Array_0[2] >= -922337.2036854776000e+13F && float_Array_0[2] <= -1.0e-20F [L65] EXPR float_Array_0[2] [L65] EXPR float_Array_0[2] >= -922337.2036854776000e+13F && float_Array_0[2] <= -1.0e-20F VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L65] EXPR (float_Array_0[2] >= -922337.2036854776000e+13F && float_Array_0[2] <= -1.0e-20F) || (float_Array_0[2] <= 9223372.036854776000e+12F && float_Array_0[2] >= 1.0e-20F ) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L65] EXPR (float_Array_0[2] >= -922337.2036854776000e+13F && float_Array_0[2] <= -1.0e-20F) || (float_Array_0[2] <= 9223372.036854776000e+12F && float_Array_0[2] >= 1.0e-20F ) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L65] CALL assume_abort_if_not((float_Array_0[2] >= -922337.2036854776000e+13F && float_Array_0[2] <= -1.0e-20F) || (float_Array_0[2] <= 9223372.036854776000e+12F && float_Array_0[2] >= 1.0e-20F )) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L65] RET assume_abort_if_not((float_Array_0[2] >= -922337.2036854776000e+13F && float_Array_0[2] <= -1.0e-20F) || (float_Array_0[2] <= 9223372.036854776000e+12F && float_Array_0[2] >= 1.0e-20F )) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L66] signed_long_int_Array_0[0] = __VERIFIER_nondet_long() [L67] EXPR signed_long_int_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L67] CALL assume_abort_if_not(signed_long_int_Array_0[0] >= 1073741823) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L67] RET assume_abort_if_not(signed_long_int_Array_0[0] >= 1073741823) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L68] EXPR signed_long_int_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L68] CALL assume_abort_if_not(signed_long_int_Array_0[0] <= 2147483647) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L68] RET assume_abort_if_not(signed_long_int_Array_0[0] <= 2147483647) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L69] signed_short_int_Array_0[0] = __VERIFIER_nondet_short() [L70] EXPR signed_short_int_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L70] CALL assume_abort_if_not(signed_short_int_Array_0[0] >= 0) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L70] RET assume_abort_if_not(signed_short_int_Array_0[0] >= 0) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L71] EXPR signed_short_int_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L71] CALL assume_abort_if_not(signed_short_int_Array_0[0] <= 16383) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L71] RET assume_abort_if_not(signed_short_int_Array_0[0] <= 16383) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L72] signed_short_int_Array_0[1] = __VERIFIER_nondet_short() [L73] EXPR signed_short_int_Array_0[1] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L73] CALL assume_abort_if_not(signed_short_int_Array_0[1] >= 0) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L73] RET assume_abort_if_not(signed_short_int_Array_0[1] >= 0) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L74] EXPR signed_short_int_Array_0[1] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L74] CALL assume_abort_if_not(signed_short_int_Array_0[1] <= 16383) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L74] RET assume_abort_if_not(signed_short_int_Array_0[1] <= 16383) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L75] signed_short_int_Array_0[2] = __VERIFIER_nondet_short() [L76] EXPR signed_short_int_Array_0[2] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L76] CALL assume_abort_if_not(signed_short_int_Array_0[2] >= 0) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L76] RET assume_abort_if_not(signed_short_int_Array_0[2] >= 0) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L77] EXPR signed_short_int_Array_0[2] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L77] CALL assume_abort_if_not(signed_short_int_Array_0[2] <= 16383) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L77] RET assume_abort_if_not(signed_short_int_Array_0[2] <= 16383) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L78] signed_short_int_Array_0[3] = __VERIFIER_nondet_short() [L79] EXPR signed_short_int_Array_0[3] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L79] CALL assume_abort_if_not(signed_short_int_Array_0[3] >= 0) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L79] RET assume_abort_if_not(signed_short_int_Array_0[3] >= 0) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L80] EXPR signed_short_int_Array_0[3] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L80] CALL assume_abort_if_not(signed_short_int_Array_0[3] <= 16383) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L80] RET assume_abort_if_not(signed_short_int_Array_0[3] <= 16383) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L81] unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L82] EXPR unsigned_char_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L82] CALL assume_abort_if_not(unsigned_char_Array_0[0] >= 0) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L82] RET assume_abort_if_not(unsigned_char_Array_0[0] >= 0) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L83] EXPR unsigned_char_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L83] CALL assume_abort_if_not(unsigned_char_Array_0[0] <= 255) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L83] RET assume_abort_if_not(unsigned_char_Array_0[0] <= 255) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L84] EXPR unsigned_char_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L84] CALL assume_abort_if_not(unsigned_char_Array_0[0] != 0) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L84] RET assume_abort_if_not(unsigned_char_Array_0[0] != 0) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L97] RET updateVariables() [L98] CALL step() [L37] EXPR signed_short_int_Array_0[3] [L37] EXPR signed_short_int_Array_0[2] [L37] EXPR signed_short_int_Array_0[1] [L37] EXPR signed_short_int_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L37] EXPR ((signed_short_int_Array_0[1]) < (signed_short_int_Array_0[0])) ? (signed_short_int_Array_0[1]) : (signed_short_int_Array_0[0]) [L37] EXPR signed_short_int_Array_0[1] [L37] EXPR ((signed_short_int_Array_0[1]) < (signed_short_int_Array_0[0])) ? (signed_short_int_Array_0[1]) : (signed_short_int_Array_0[0]) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L37] signed_short_int_Array_0[4] = ((((((16) > (4)) ? (16) : (4))) + signed_short_int_Array_0[3]) - (signed_short_int_Array_0[2] + ((((signed_short_int_Array_0[1]) < (signed_short_int_Array_0[0])) ? (signed_short_int_Array_0[1]) : (signed_short_int_Array_0[0]))))) [L38] EXPR signed_short_int_Array_0[3] [L38] EXPR signed_short_int_Array_0[4] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L38] COND FALSE !(signed_short_int_Array_0[3] >= signed_short_int_Array_0[4]) [L45] EXPR signed_short_int_Array_0[1] [L45] signed_long_int_Array_0[2] = signed_short_int_Array_0[1] [L47] EXPR signed_long_int_Array_0[2] [L47] EXPR signed_short_int_Array_0[1] [L47] EXPR signed_short_int_Array_0[3] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L47] EXPR signed_short_int_Array_0[1] << signed_short_int_Array_0[3] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L47] signed long int stepLocal_1 = signed_long_int_Array_0[2] + (signed_short_int_Array_0[1] << signed_short_int_Array_0[3]); [L48] EXPR signed_short_int_Array_0[3] [L48] EXPR signed_long_int_Array_0[0] [L48] EXPR signed_short_int_Array_0[0] [L48] signed long int stepLocal_0 = signed_short_int_Array_0[3] - (signed_long_int_Array_0[0] - signed_short_int_Array_0[0]); [L49] EXPR signed_short_int_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L49] COND TRUE stepLocal_1 != signed_short_int_Array_0[0] [L50] EXPR signed_short_int_Array_0[2] [L50] EXPR unsigned_char_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L50] COND FALSE !((signed_short_int_Array_0[2] / unsigned_char_Array_0[0]) < stepLocal_0) [L53] EXPR signed_short_int_Array_0[1] [L53] signed_long_int_Array_0[1] = signed_short_int_Array_0[1] [L98] RET step() [L99] CALL, EXPR property() [L89] EXPR signed_short_int_Array_0[4] [L89] EXPR signed_short_int_Array_0[3] [L89] EXPR signed_short_int_Array_0[2] [L89] EXPR signed_short_int_Array_0[1] [L89] EXPR signed_short_int_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L89] EXPR ((signed_short_int_Array_0[1]) < (signed_short_int_Array_0[0])) ? (signed_short_int_Array_0[1]) : (signed_short_int_Array_0[0]) [L89] EXPR signed_short_int_Array_0[1] [L89] EXPR ((signed_short_int_Array_0[1]) < (signed_short_int_Array_0[0])) ? (signed_short_int_Array_0[1]) : (signed_short_int_Array_0[0]) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L89] EXPR (signed_short_int_Array_0[4] == ((signed short int) ((((((16) > (4)) ? (16) : (4))) + signed_short_int_Array_0[3]) - (signed_short_int_Array_0[2] + ((((signed_short_int_Array_0[1]) < (signed_short_int_Array_0[0])) ? (signed_short_int_Array_0[1]) : (signed_short_int_Array_0[0]))))))) && ((signed_short_int_Array_0[3] >= signed_short_int_Array_0[4]) ? ((((((float_Array_0[2] + float_Array_0[1]) < 0 ) ? -(float_Array_0[2] + float_Array_0[1]) : (float_Array_0[2] + float_Array_0[1]))) < float_Array_0[0]) ? (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[2])) : (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[4]))) : (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[1]))) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L89] EXPR (signed_short_int_Array_0[4] == ((signed short int) ((((((16) > (4)) ? (16) : (4))) + signed_short_int_Array_0[3]) - (signed_short_int_Array_0[2] + ((((signed_short_int_Array_0[1]) < (signed_short_int_Array_0[0])) ? (signed_short_int_Array_0[1]) : (signed_short_int_Array_0[0]))))))) && ((signed_short_int_Array_0[3] >= signed_short_int_Array_0[4]) ? ((((((float_Array_0[2] + float_Array_0[1]) < 0 ) ? -(float_Array_0[2] + float_Array_0[1]) : (float_Array_0[2] + float_Array_0[1]))) < float_Array_0[0]) ? (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[2])) : (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[4]))) : (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[1]))) [L89] EXPR signed_short_int_Array_0[3] [L89] EXPR signed_short_int_Array_0[4] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L89] EXPR (signed_short_int_Array_0[3] >= signed_short_int_Array_0[4]) ? ((((((float_Array_0[2] + float_Array_0[1]) < 0 ) ? -(float_Array_0[2] + float_Array_0[1]) : (float_Array_0[2] + float_Array_0[1]))) < float_Array_0[0]) ? (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[2])) : (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[4]))) : (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[1])) [L89] EXPR signed_long_int_Array_0[2] [L89] EXPR signed_short_int_Array_0[1] [L89] EXPR (signed_short_int_Array_0[3] >= signed_short_int_Array_0[4]) ? ((((((float_Array_0[2] + float_Array_0[1]) < 0 ) ? -(float_Array_0[2] + float_Array_0[1]) : (float_Array_0[2] + float_Array_0[1]))) < float_Array_0[0]) ? (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[2])) : (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[4]))) : (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[1])) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L89] EXPR (signed_short_int_Array_0[4] == ((signed short int) ((((((16) > (4)) ? (16) : (4))) + signed_short_int_Array_0[3]) - (signed_short_int_Array_0[2] + ((((signed_short_int_Array_0[1]) < (signed_short_int_Array_0[0])) ? (signed_short_int_Array_0[1]) : (signed_short_int_Array_0[0]))))))) && ((signed_short_int_Array_0[3] >= signed_short_int_Array_0[4]) ? ((((((float_Array_0[2] + float_Array_0[1]) < 0 ) ? -(float_Array_0[2] + float_Array_0[1]) : (float_Array_0[2] + float_Array_0[1]))) < float_Array_0[0]) ? (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[2])) : (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[4]))) : (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[1]))) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L89] EXPR ((signed_short_int_Array_0[4] == ((signed short int) ((((((16) > (4)) ? (16) : (4))) + signed_short_int_Array_0[3]) - (signed_short_int_Array_0[2] + ((((signed_short_int_Array_0[1]) < (signed_short_int_Array_0[0])) ? (signed_short_int_Array_0[1]) : (signed_short_int_Array_0[0]))))))) && ((signed_short_int_Array_0[3] >= signed_short_int_Array_0[4]) ? ((((((float_Array_0[2] + float_Array_0[1]) < 0 ) ? -(float_Array_0[2] + float_Array_0[1]) : (float_Array_0[2] + float_Array_0[1]))) < float_Array_0[0]) ? (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[2])) : (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[4]))) : (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[1])))) && (((signed_long_int_Array_0[2] + (signed_short_int_Array_0[1] << signed_short_int_Array_0[3])) != signed_short_int_Array_0[0]) ? (((signed_short_int_Array_0[2] / unsigned_char_Array_0[0]) < (signed_short_int_Array_0[3] - (signed_long_int_Array_0[0] - signed_short_int_Array_0[0]))) ? (signed_long_int_Array_0[1] == ((signed long int) ((((-256) < (((((signed_short_int_Array_0[1]) < (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3]))))) ? (signed_short_int_Array_0[1]) : (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3])))))))) ? (-256) : (((((signed_short_int_Array_0[1]) < (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3]))))) ? (signed_short_int_Array_0[1]) : (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3]))))))))))) : (signed_long_int_Array_0[1] == ((signed long int) signed_short_int_Array_0[1]))) : (signed_long_int_Array_0[1] == ((signed long int) signed_short_int_Array_0[3]))) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L89] EXPR ((signed_short_int_Array_0[4] == ((signed short int) ((((((16) > (4)) ? (16) : (4))) + signed_short_int_Array_0[3]) - (signed_short_int_Array_0[2] + ((((signed_short_int_Array_0[1]) < (signed_short_int_Array_0[0])) ? (signed_short_int_Array_0[1]) : (signed_short_int_Array_0[0]))))))) && ((signed_short_int_Array_0[3] >= signed_short_int_Array_0[4]) ? ((((((float_Array_0[2] + float_Array_0[1]) < 0 ) ? -(float_Array_0[2] + float_Array_0[1]) : (float_Array_0[2] + float_Array_0[1]))) < float_Array_0[0]) ? (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[2])) : (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[4]))) : (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[1])))) && (((signed_long_int_Array_0[2] + (signed_short_int_Array_0[1] << signed_short_int_Array_0[3])) != signed_short_int_Array_0[0]) ? (((signed_short_int_Array_0[2] / unsigned_char_Array_0[0]) < (signed_short_int_Array_0[3] - (signed_long_int_Array_0[0] - signed_short_int_Array_0[0]))) ? (signed_long_int_Array_0[1] == ((signed long int) ((((-256) < (((((signed_short_int_Array_0[1]) < (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3]))))) ? (signed_short_int_Array_0[1]) : (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3])))))))) ? (-256) : (((((signed_short_int_Array_0[1]) < (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3]))))) ? (signed_short_int_Array_0[1]) : (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3]))))))))))) : (signed_long_int_Array_0[1] == ((signed long int) signed_short_int_Array_0[1]))) : (signed_long_int_Array_0[1] == ((signed long int) signed_short_int_Array_0[3]))) [L89] EXPR signed_long_int_Array_0[2] [L89] EXPR signed_short_int_Array_0[1] [L89] EXPR signed_short_int_Array_0[3] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L89] EXPR signed_short_int_Array_0[1] << signed_short_int_Array_0[3] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L89] EXPR signed_short_int_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L89] EXPR ((signed_long_int_Array_0[2] + (signed_short_int_Array_0[1] << signed_short_int_Array_0[3])) != signed_short_int_Array_0[0]) ? (((signed_short_int_Array_0[2] / unsigned_char_Array_0[0]) < (signed_short_int_Array_0[3] - (signed_long_int_Array_0[0] - signed_short_int_Array_0[0]))) ? (signed_long_int_Array_0[1] == ((signed long int) ((((-256) < (((((signed_short_int_Array_0[1]) < (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3]))))) ? (signed_short_int_Array_0[1]) : (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3])))))))) ? (-256) : (((((signed_short_int_Array_0[1]) < (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3]))))) ? (signed_short_int_Array_0[1]) : (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3]))))))))))) : (signed_long_int_Array_0[1] == ((signed long int) signed_short_int_Array_0[1]))) : (signed_long_int_Array_0[1] == ((signed long int) signed_short_int_Array_0[3])) [L89] EXPR signed_long_int_Array_0[1] [L89] EXPR signed_short_int_Array_0[3] [L89] EXPR ((signed_long_int_Array_0[2] + (signed_short_int_Array_0[1] << signed_short_int_Array_0[3])) != signed_short_int_Array_0[0]) ? (((signed_short_int_Array_0[2] / unsigned_char_Array_0[0]) < (signed_short_int_Array_0[3] - (signed_long_int_Array_0[0] - signed_short_int_Array_0[0]))) ? (signed_long_int_Array_0[1] == ((signed long int) ((((-256) < (((((signed_short_int_Array_0[1]) < (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3]))))) ? (signed_short_int_Array_0[1]) : (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3])))))))) ? (-256) : (((((signed_short_int_Array_0[1]) < (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3]))))) ? (signed_short_int_Array_0[1]) : (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3]))))))))))) : (signed_long_int_Array_0[1] == ((signed long int) signed_short_int_Array_0[1]))) : (signed_long_int_Array_0[1] == ((signed long int) signed_short_int_Array_0[3])) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L89] EXPR ((signed_short_int_Array_0[4] == ((signed short int) ((((((16) > (4)) ? (16) : (4))) + signed_short_int_Array_0[3]) - (signed_short_int_Array_0[2] + ((((signed_short_int_Array_0[1]) < (signed_short_int_Array_0[0])) ? (signed_short_int_Array_0[1]) : (signed_short_int_Array_0[0]))))))) && ((signed_short_int_Array_0[3] >= signed_short_int_Array_0[4]) ? ((((((float_Array_0[2] + float_Array_0[1]) < 0 ) ? -(float_Array_0[2] + float_Array_0[1]) : (float_Array_0[2] + float_Array_0[1]))) < float_Array_0[0]) ? (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[2])) : (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[4]))) : (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[1])))) && (((signed_long_int_Array_0[2] + (signed_short_int_Array_0[1] << signed_short_int_Array_0[3])) != signed_short_int_Array_0[0]) ? (((signed_short_int_Array_0[2] / unsigned_char_Array_0[0]) < (signed_short_int_Array_0[3] - (signed_long_int_Array_0[0] - signed_short_int_Array_0[0]))) ? (signed_long_int_Array_0[1] == ((signed long int) ((((-256) < (((((signed_short_int_Array_0[1]) < (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3]))))) ? (signed_short_int_Array_0[1]) : (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3])))))))) ? (-256) : (((((signed_short_int_Array_0[1]) < (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3]))))) ? (signed_short_int_Array_0[1]) : (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3]))))))))))) : (signed_long_int_Array_0[1] == ((signed long int) signed_short_int_Array_0[1]))) : (signed_long_int_Array_0[1] == ((signed long int) signed_short_int_Array_0[3]))) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L89-L90] return ((signed_short_int_Array_0[4] == ((signed short int) ((((((16) > (4)) ? (16) : (4))) + signed_short_int_Array_0[3]) - (signed_short_int_Array_0[2] + ((((signed_short_int_Array_0[1]) < (signed_short_int_Array_0[0])) ? (signed_short_int_Array_0[1]) : (signed_short_int_Array_0[0]))))))) && ((signed_short_int_Array_0[3] >= signed_short_int_Array_0[4]) ? ((((((float_Array_0[2] + float_Array_0[1]) < 0 ) ? -(float_Array_0[2] + float_Array_0[1]) : (float_Array_0[2] + float_Array_0[1]))) < float_Array_0[0]) ? (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[2])) : (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[4]))) : (signed_long_int_Array_0[2] == ((signed long int) signed_short_int_Array_0[1])))) && (((signed_long_int_Array_0[2] + (signed_short_int_Array_0[1] << signed_short_int_Array_0[3])) != signed_short_int_Array_0[0]) ? (((signed_short_int_Array_0[2] / unsigned_char_Array_0[0]) < (signed_short_int_Array_0[3] - (signed_long_int_Array_0[0] - signed_short_int_Array_0[0]))) ? (signed_long_int_Array_0[1] == ((signed long int) ((((-256) < (((((signed_short_int_Array_0[1]) < (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3]))))) ? (signed_short_int_Array_0[1]) : (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3])))))))) ? (-256) : (((((signed_short_int_Array_0[1]) < (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3]))))) ? (signed_short_int_Array_0[1]) : (((((signed_short_int_Array_0[0]) > (signed_short_int_Array_0[3])) ? (signed_short_int_Array_0[0]) : (signed_short_int_Array_0[3]))))))))))) : (signed_long_int_Array_0[1] == ((signed long int) signed_short_int_Array_0[1]))) : (signed_long_int_Array_0[1] == ((signed long int) signed_short_int_Array_0[3]))) ; [L99] RET, EXPR property() [L99] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] [L19] reach_error() VAL [float_Array_0={4:0}, isInitial=1, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 120 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 35.2s, OverallIterations: 17, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 13.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2438 SdHoareTripleChecker+Valid, 10.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2431 mSDsluCounter, 15724 SdHoareTripleChecker+Invalid, 8.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12752 mSDsCounter, 120 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8629 IncrementalHoareTripleChecker+Invalid, 8749 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 120 mSolverCounterUnsat, 2972 mSDtfsCounter, 8629 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 350 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=504occurred in iteration=14, InterpolantAutomatonStates: 128, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 16 MinimizatonAttempts, 1456 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 17.6s InterpolantComputationTime, 2513 NumberOfCodeBlocks, 2513 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 2222 ConstructedInterpolants, 0 QuantifiedInterpolants, 8215 SizeOfPredicates, 0 NumberOfNonLiveVariables, 448 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 17 InterpolantComputations, 16 PerfectInterpolantSequences, 8130/8160 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 [2024-11-28 04:47:21,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, 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_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-39.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB --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 d2a0584d4779790e33dcddf636884f56e9964183aa5c7648270a93d40ce062b0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:47:24,505 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:47:24,656 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-28 04:47:24,662 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:47:24,667 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:47:24,729 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:47:24,732 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:47:24,733 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:47:24,733 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:47:24,734 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:47:24,735 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:47:24,735 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:47:24,735 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:47:24,736 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:47:24,736 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:47:24,737 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:47:24,737 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:47:24,737 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:47:24,737 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:47:24,737 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:47:24,737 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:47:24,737 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:47:24,738 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:47:24,738 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 04:47:24,738 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 04:47:24,738 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 04:47:24,738 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:47:24,739 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:47:24,739 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:47:24,739 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:47:24,739 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:47:24,740 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:47:24,740 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:47:24,740 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:47:24,740 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:47:24,741 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:47:24,741 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:47:24,741 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:47:24,741 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:47:24,741 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:47:24,742 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:47:24,742 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:47:24,742 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:47:24,742 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:47:24,742 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 04:47:24,743 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 04:47:24,743 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:47:24,743 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:47:24,743 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:47:24,743 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:47:24,744 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_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB 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 -> d2a0584d4779790e33dcddf636884f56e9964183aa5c7648270a93d40ce062b0 [2024-11-28 04:47:25,073 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:47:25,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:47:25,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:47:25,085 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:47:25,086 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:47:25,087 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-39.i [2024-11-28 04:47:28,159 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/data/e526d166c/98fab44f2da24308b9c4e0cef1b4ea5e/FLAG617fe6648 [2024-11-28 04:47:28,438 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:47:28,442 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-39.i [2024-11-28 04:47:28,456 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/data/e526d166c/98fab44f2da24308b9c4e0cef1b4ea5e/FLAG617fe6648 [2024-11-28 04:47:28,481 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/data/e526d166c/98fab44f2da24308b9c4e0cef1b4ea5e [2024-11-28 04:47:28,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:47:28,486 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:47:28,489 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:47:28,489 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:47:28,495 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:47:28,497 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:47:28" (1/1) ... [2024-11-28 04:47:28,501 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19266749 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:28, skipping insertion in model container [2024-11-28 04:47:28,501 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:47:28" (1/1) ... [2024-11-28 04:47:28,525 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:47:28,725 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_d25b8db2-8d11-411a-8d46-54693b03a7f2/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-39.i[916,929] [2024-11-28 04:47:28,867 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:47:28,889 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:47:28,903 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_d25b8db2-8d11-411a-8d46-54693b03a7f2/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-39.i[916,929] [2024-11-28 04:47:29,016 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:47:29,043 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:47:29,044 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:29 WrapperNode [2024-11-28 04:47:29,044 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:47:29,046 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:47:29,046 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:47:29,046 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:47:29,055 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:29" (1/1) ... [2024-11-28 04:47:29,074 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:29" (1/1) ... [2024-11-28 04:47:29,124 INFO L138 Inliner]: procedures = 36, calls = 191, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 585 [2024-11-28 04:47:29,125 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:47:29,125 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:47:29,125 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:47:29,126 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:47:29,135 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:29" (1/1) ... [2024-11-28 04:47:29,135 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:29" (1/1) ... [2024-11-28 04:47:29,143 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:29" (1/1) ... [2024-11-28 04:47:29,172 INFO L175 MemorySlicer]: Split 160 memory accesses to 5 slices as follows [2, 32, 22, 97, 7]. 61 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 3, 3, 5, 1]. The 16 writes are split as follows [0, 3, 7, 5, 1]. [2024-11-28 04:47:29,172 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:29" (1/1) ... [2024-11-28 04:47:29,172 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:29" (1/1) ... [2024-11-28 04:47:29,215 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:29" (1/1) ... [2024-11-28 04:47:29,216 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:29" (1/1) ... [2024-11-28 04:47:29,228 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:29" (1/1) ... [2024-11-28 04:47:29,236 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:29" (1/1) ... [2024-11-28 04:47:29,241 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:29" (1/1) ... [2024-11-28 04:47:29,249 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:47:29,250 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:47:29,250 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:47:29,250 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:47:29,259 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:29" (1/1) ... [2024-11-28 04:47:29,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:47:29,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:47:29,305 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:47:29,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:47:29,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:47:29,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-28 04:47:29,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-28 04:47:29,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-28 04:47:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-11-28 04:47:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-11-28 04:47:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2024-11-28 04:47:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2024-11-28 04:47:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#2 [2024-11-28 04:47:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#3 [2024-11-28 04:47:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#4 [2024-11-28 04:47:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 04:47:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 04:47:29,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-28 04:47:29,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-28 04:47:29,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-28 04:47:29,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-28 04:47:29,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-28 04:47:29,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-28 04:47:29,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-28 04:47:29,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-11-28 04:47:29,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-28 04:47:29,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-28 04:47:29,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-28 04:47:29,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-28 04:47:29,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-28 04:47:29,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-28 04:47:29,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-28 04:47:29,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-28 04:47:29,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-28 04:47:29,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-28 04:47:29,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-11-28 04:47:29,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-11-28 04:47:29,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#2 [2024-11-28 04:47:29,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#3 [2024-11-28 04:47:29,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#4 [2024-11-28 04:47:29,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-28 04:47:29,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-28 04:47:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-28 04:47:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-28 04:47:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-28 04:47:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-11-28 04:47:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-11-28 04:47:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-11-28 04:47:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-11-28 04:47:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-11-28 04:47:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:47:29,351 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:47:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:47:29,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:47:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-28 04:47:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-28 04:47:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-11-28 04:47:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-11-28 04:47:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-11-28 04:47:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-11-28 04:47:29,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-11-28 04:47:29,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#2 [2024-11-28 04:47:29,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#3 [2024-11-28 04:47:29,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#4 [2024-11-28 04:47:29,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-28 04:47:29,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-28 04:47:29,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-28 04:47:29,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-28 04:47:29,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-28 04:47:29,624 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:47:29,626 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:47:31,692 INFO L? ?]: Removed 188 outVars from TransFormulas that were not future-live. [2024-11-28 04:47:31,693 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:47:31,714 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:47:31,715 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:47:31,716 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:47:31 BoogieIcfgContainer [2024-11-28 04:47:31,716 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:47:31,718 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:47:31,719 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:47:31,725 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:47:31,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:47:28" (1/3) ... [2024-11-28 04:47:31,727 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5be4dfe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:47:31, skipping insertion in model container [2024-11-28 04:47:31,727 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:29" (2/3) ... [2024-11-28 04:47:31,729 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5be4dfe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:47:31, skipping insertion in model container [2024-11-28 04:47:31,729 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:47:31" (3/3) ... [2024-11-28 04:47:31,731 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-39.i [2024-11-28 04:47:31,751 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:47:31,752 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-39.i that has 2 procedures, 114 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 04:47:31,816 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:47:31,828 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;@cdb4725, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:47:31,829 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:47:31,833 INFO L276 IsEmpty]: Start isEmpty. Operand has 114 states, 95 states have (on average 1.4421052631578948) internal successors, (137), 96 states have internal predecessors, (137), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 04:47:31,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-28 04:47:31,845 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:31,846 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:31,847 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:47:31,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:31,852 INFO L85 PathProgramCache]: Analyzing trace with hash -607755742, now seen corresponding path program 1 times [2024-11-28 04:47:31,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:47:31,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1345617274] [2024-11-28 04:47:31,866 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:31,867 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 [2024-11-28 04:47:31,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:47:31,869 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 04:47:31,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:47:32,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:32,393 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:47:32,409 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:47:32,509 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2024-11-28 04:47:32,510 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:47:32,511 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:47:32,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1345617274] [2024-11-28 04:47:32,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1345617274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:32,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:32,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:47:32,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660583606] [2024-11-28 04:47:32,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:32,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:47:32,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:47:32,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:47:32,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:47:32,555 INFO L87 Difference]: Start difference. First operand has 114 states, 95 states have (on average 1.4421052631578948) internal successors, (137), 96 states have internal predecessors, (137), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 04:47:32,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:32,606 INFO L93 Difference]: Finished difference Result 221 states and 348 transitions. [2024-11-28 04:47:32,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:47:32,609 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 126 [2024-11-28 04:47:32,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:32,616 INFO L225 Difference]: With dead ends: 221 [2024-11-28 04:47:32,616 INFO L226 Difference]: Without dead ends: 110 [2024-11-28 04:47:32,621 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:47:32,626 INFO L435 NwaCegarLoop]: 162 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, 162 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 [2024-11-28 04:47:32,627 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:47:32,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-28 04:47:32,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2024-11-28 04:47:32,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 92 states have (on average 1.4130434782608696) internal successors, (130), 92 states have internal predecessors, (130), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 04:47:32,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 162 transitions. [2024-11-28 04:47:32,672 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 162 transitions. Word has length 126 [2024-11-28 04:47:32,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:32,674 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 162 transitions. [2024-11-28 04:47:32,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 04:47:32,674 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 162 transitions. [2024-11-28 04:47:32,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-28 04:47:32,680 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:32,680 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:32,690 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:47:32,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:47:32,881 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:47:32,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:32,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1007872186, now seen corresponding path program 1 times [2024-11-28 04:47:32,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:47:32,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1717305348] [2024-11-28 04:47:32,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:32,883 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 [2024-11-28 04:47:32,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:47:32,887 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 04:47:32,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:47:33,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:33,487 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-28 04:47:33,500 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:47:33,581 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 12 treesize of output 8 [2024-11-28 04:47:34,210 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 32 [2024-11-28 04:47:35,880 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:47:35,881 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 35 [2024-11-28 04:47:36,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 35 [2024-11-28 04:47:39,754 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:47:39,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 88 treesize of output 56 [2024-11-28 04:47:39,858 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 21 treesize of output 17 [2024-11-28 04:47:40,198 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 47 treesize of output 35 [2024-11-28 04:47:40,967 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:47:40,968 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 91 treesize of output 39 [2024-11-28 04:47:41,165 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 344 proven. 78 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-28 04:47:41,165 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:47:42,367 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:47:42,367 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:47:42,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1717305348] [2024-11-28 04:47:42,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1717305348] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:47:42,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:47:42,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [34] total 40 [2024-11-28 04:47:42,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495017313] [2024-11-28 04:47:42,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:42,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:47:42,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:47:42,370 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:47:42,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=280, Invalid=1280, Unknown=0, NotChecked=0, Total=1560 [2024-11-28 04:47:42,372 INFO L87 Difference]: Start difference. First operand 110 states and 162 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:47:44,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:44,815 INFO L93 Difference]: Finished difference Result 442 states and 651 transitions. [2024-11-28 04:47:44,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:47:44,816 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 126 [2024-11-28 04:47:44,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:44,820 INFO L225 Difference]: With dead ends: 442 [2024-11-28 04:47:44,820 INFO L226 Difference]: Without dead ends: 335 [2024-11-28 04:47:44,822 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 212 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 514 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=312, Invalid=1494, Unknown=0, NotChecked=0, Total=1806 [2024-11-28 04:47:44,823 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 958 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 958 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:44,823 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [958 Valid, 576 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-28 04:47:44,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2024-11-28 04:47:44,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 194. [2024-11-28 04:47:44,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 170 states have (on average 1.4470588235294117) internal successors, (246), 171 states have internal predecessors, (246), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-28 04:47:44,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 288 transitions. [2024-11-28 04:47:44,849 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 288 transitions. Word has length 126 [2024-11-28 04:47:44,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:44,850 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 288 transitions. [2024-11-28 04:47:44,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:47:44,850 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 288 transitions. [2024-11-28 04:47:44,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-28 04:47:44,852 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:44,853 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:44,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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)] Forceful destruction successful, exit code 0 [2024-11-28 04:47:45,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:47:45,057 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:47:45,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:45,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1687930556, now seen corresponding path program 1 times [2024-11-28 04:47:45,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:47:45,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [992238999] [2024-11-28 04:47:45,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:45,059 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 [2024-11-28 04:47:45,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:47:45,063 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 04:47:45,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:47:45,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:45,582 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-11-28 04:47:45,592 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:47:45,619 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 15 treesize of output 1 [2024-11-28 04:47:45,838 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 18 [2024-11-28 04:47:46,349 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 47 [2024-11-28 04:47:47,778 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 60 [2024-11-28 04:47:51,828 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 150 treesize of output 106 [2024-11-28 04:47:52,363 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 21 treesize of output 17 [2024-11-28 04:47:52,857 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 47 treesize of output 35 [2024-11-28 04:47:54,650 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:47:54,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 239 treesize of output 103 [2024-11-28 04:47:55,439 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 351 proven. 72 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-28 04:47:55,439 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:47:58,919 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:47:58,919 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:47:58,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [992238999] [2024-11-28 04:47:58,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [992238999] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:47:58,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:47:58,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [44] total 52 [2024-11-28 04:47:58,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076634419] [2024-11-28 04:47:58,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:58,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:47:58,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:47:58,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:47:58,923 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=382, Invalid=2270, Unknown=0, NotChecked=0, Total=2652 [2024-11-28 04:47:58,924 INFO L87 Difference]: Start difference. First operand 194 states and 288 transitions. Second operand has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:48:07,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:48:07,300 INFO L93 Difference]: Finished difference Result 550 states and 815 transitions. [2024-11-28 04:48:07,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:48:07,302 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 126 [2024-11-28 04:48:07,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:48:07,307 INFO L225 Difference]: With dead ends: 550 [2024-11-28 04:48:07,307 INFO L226 Difference]: Without dead ends: 359 [2024-11-28 04:48:07,310 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 200 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 949 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=447, Invalid=2975, Unknown=0, NotChecked=0, Total=3422 [2024-11-28 04:48:07,311 INFO L435 NwaCegarLoop]: 197 mSDtfsCounter, 434 mSDsluCounter, 1160 mSDsCounter, 0 mSdLazyCounter, 866 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 1357 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:48:07,311 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 1357 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 866 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-28 04:48:07,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-11-28 04:48:07,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 196. [2024-11-28 04:48:07,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 172 states have (on average 1.441860465116279) internal successors, (248), 173 states have internal predecessors, (248), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-28 04:48:07,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 290 transitions. [2024-11-28 04:48:07,350 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 290 transitions. Word has length 126 [2024-11-28 04:48:07,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:48:07,351 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 290 transitions. [2024-11-28 04:48:07,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:48:07,351 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 290 transitions. [2024-11-28 04:48:07,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-28 04:48:07,357 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:48:07,358 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:48:07,369 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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)] Ended with exit code 0 [2024-11-28 04:48:07,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:48:07,558 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:48:07,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:07,559 INFO L85 PathProgramCache]: Analyzing trace with hash 2007231432, now seen corresponding path program 1 times [2024-11-28 04:48:07,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:48:07,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1289249647] [2024-11-28 04:48:07,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:07,560 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 [2024-11-28 04:48:07,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:48:07,563 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 04:48:07,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:48:07,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:07,998 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-28 04:48:08,004 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:08,024 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 12 treesize of output 8 [2024-11-28 04:48:08,401 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 46 treesize of output 22 [2024-11-28 04:48:08,585 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 32 [2024-11-28 04:48:09,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 55 [2024-11-28 04:48:12,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 71 [2024-11-28 04:48:14,065 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:48:14,065 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 122 treesize of output 56 [2024-11-28 04:48:14,544 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 358 proven. 66 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-28 04:48:14,544 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:48:16,392 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:48:16,392 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:48:16,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1289249647] [2024-11-28 04:48:16,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1289249647] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:48:16,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:48:16,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [36] total 42 [2024-11-28 04:48:16,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150466720] [2024-11-28 04:48:16,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:48:16,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:48:16,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:48:16,394 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:48:16,395 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=287, Invalid=1435, Unknown=0, NotChecked=0, Total=1722 [2024-11-28 04:48:16,395 INFO L87 Difference]: Start difference. First operand 196 states and 290 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:48:19,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:48:19,745 INFO L93 Difference]: Finished difference Result 469 states and 695 transitions. [2024-11-28 04:48:19,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:48:19,746 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 126 [2024-11-28 04:48:19,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:48:19,748 INFO L225 Difference]: With dead ends: 469 [2024-11-28 04:48:19,748 INFO L226 Difference]: Without dead ends: 276 [2024-11-28 04:48:19,752 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 209 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 605 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=310, Invalid=1760, Unknown=0, NotChecked=0, Total=2070 [2024-11-28 04:48:19,754 INFO L435 NwaCegarLoop]: 194 mSDtfsCounter, 222 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:48:19,755 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 1108 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-28 04:48:19,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2024-11-28 04:48:19,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 212. [2024-11-28 04:48:19,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 188 states have (on average 1.4574468085106382) internal successors, (274), 189 states have internal predecessors, (274), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-28 04:48:19,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 316 transitions. [2024-11-28 04:48:19,788 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 316 transitions. Word has length 126 [2024-11-28 04:48:19,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:48:19,790 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 316 transitions. [2024-11-28 04:48:19,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:48:19,791 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 316 transitions. [2024-11-28 04:48:19,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-28 04:48:19,795 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:48:19,795 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:48:19,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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)] Ended with exit code 0 [2024-11-28 04:48:19,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:48:19,999 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:48:20,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:20,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1327173062, now seen corresponding path program 1 times [2024-11-28 04:48:20,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:48:20,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1334715457] [2024-11-28 04:48:20,001 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:20,001 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 [2024-11-28 04:48:20,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:48:20,005 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 04:48:20,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:48:20,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:20,414 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-28 04:48:20,419 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:20,431 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 15 treesize of output 1 [2024-11-28 04:48:20,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 28 [2024-11-28 04:48:21,365 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:48:21,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 51 [2024-11-28 04:48:21,797 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:48:21,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 80 treesize of output 54 [2024-11-28 04:48:22,948 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:48:22,949 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 78 treesize of output 52 [2024-11-28 04:48:22,982 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 21 treesize of output 17 [2024-11-28 04:48:23,218 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 47 treesize of output 35 [2024-11-28 04:48:23,661 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:48:23,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 114 treesize of output 50 [2024-11-28 04:48:23,919 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 267 proven. 84 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2024-11-28 04:48:23,919 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:48:24,771 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:48:24,771 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:48:24,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1334715457] [2024-11-28 04:48:24,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1334715457] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:48:24,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:48:24,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [26] total 32 [2024-11-28 04:48:24,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545773728] [2024-11-28 04:48:24,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:48:24,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:48:24,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:48:24,773 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:48:24,773 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=820, Unknown=0, NotChecked=0, Total=992 [2024-11-28 04:48:24,774 INFO L87 Difference]: Start difference. First operand 212 states and 316 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:48:27,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:48:27,924 INFO L93 Difference]: Finished difference Result 556 states and 816 transitions. [2024-11-28 04:48:27,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:48:27,927 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 126 [2024-11-28 04:48:27,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:48:27,930 INFO L225 Difference]: With dead ends: 556 [2024-11-28 04:48:27,930 INFO L226 Difference]: Without dead ends: 347 [2024-11-28 04:48:27,931 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=204, Invalid=986, Unknown=0, NotChecked=0, Total=1190 [2024-11-28 04:48:27,932 INFO L435 NwaCegarLoop]: 245 mSDtfsCounter, 417 mSDsluCounter, 843 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 1088 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:48:27,932 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 1088 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-28 04:48:27,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2024-11-28 04:48:27,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 140. [2024-11-28 04:48:27,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 121 states have (on average 1.4132231404958677) internal successors, (171), 121 states have internal predecessors, (171), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 04:48:27,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 203 transitions. [2024-11-28 04:48:27,953 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 203 transitions. Word has length 126 [2024-11-28 04:48:27,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:48:27,954 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 203 transitions. [2024-11-28 04:48:27,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:48:27,954 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 203 transitions. [2024-11-28 04:48:27,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-28 04:48:27,957 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:48:27,958 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:48:27,968 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:48:28,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:48:28,159 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:48:28,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:28,159 INFO L85 PathProgramCache]: Analyzing trace with hash -568707458, now seen corresponding path program 1 times [2024-11-28 04:48:28,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:48:28,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [587464969] [2024-11-28 04:48:28,160 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:28,160 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 [2024-11-28 04:48:28,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:48:28,162 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 04:48:28,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:48:28,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:28,638 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-28 04:48:28,645 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:28,658 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 15 treesize of output 1 [2024-11-28 04:48:28,893 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 18 [2024-11-28 04:48:29,465 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:48:29,465 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 47 [2024-11-28 04:48:29,793 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:48:29,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 65 treesize of output 60 [2024-11-28 04:48:31,073 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:48:31,073 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 77 treesize of output 60 [2024-11-28 04:48:31,203 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:48:31,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 76 treesize of output 34 [2024-11-28 04:48:31,643 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 307 proven. 84 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2024-11-28 04:48:31,643 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:48:32,061 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:48:32,062 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:48:32,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [587464969] [2024-11-28 04:48:32,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [587464969] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:48:32,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:48:32,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [23] total 26 [2024-11-28 04:48:32,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968501160] [2024-11-28 04:48:32,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:48:32,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:48:32,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:48:32,063 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:48:32,064 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=539, Unknown=0, NotChecked=0, Total=650 [2024-11-28 04:48:32,064 INFO L87 Difference]: Start difference. First operand 140 states and 203 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:48:32,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:48:32,813 INFO L93 Difference]: Finished difference Result 360 states and 525 transitions. [2024-11-28 04:48:32,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:48:32,814 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 127 [2024-11-28 04:48:32,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:48:32,816 INFO L225 Difference]: With dead ends: 360 [2024-11-28 04:48:32,816 INFO L226 Difference]: Without dead ends: 223 [2024-11-28 04:48:32,816 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=116, Invalid=586, Unknown=0, NotChecked=0, Total=702 [2024-11-28 04:48:32,817 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 118 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:48:32,817 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 425 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:48:32,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-11-28 04:48:32,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 159. [2024-11-28 04:48:32,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 140 states have (on average 1.4357142857142857) internal successors, (201), 140 states have internal predecessors, (201), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 04:48:32,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 233 transitions. [2024-11-28 04:48:32,826 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 233 transitions. Word has length 127 [2024-11-28 04:48:32,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:48:32,827 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 233 transitions. [2024-11-28 04:48:32,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:48:32,827 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 233 transitions. [2024-11-28 04:48:32,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-28 04:48:32,829 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:48:32,829 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:48:32,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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)] Forceful destruction successful, exit code 0 [2024-11-28 04:48:33,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:48:33,029 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:48:33,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:33,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1248765828, now seen corresponding path program 1 times [2024-11-28 04:48:33,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:48:33,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [143937248] [2024-11-28 04:48:33,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:33,030 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 [2024-11-28 04:48:33,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:48:33,032 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 04:48:33,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:48:33,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:33,506 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-28 04:48:33,511 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:33,521 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 14 treesize of output 10 [2024-11-28 04:48:33,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 34 [2024-11-28 04:48:34,838 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 47 [2024-11-28 04:48:37,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 83 [2024-11-28 04:48:39,094 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:48:39,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 145 treesize of output 67 [2024-11-28 04:48:39,605 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 330 proven. 54 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-28 04:48:39,605 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:48:41,794 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:48:41,795 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:48:41,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [143937248] [2024-11-28 04:48:41,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [143937248] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:48:41,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:48:41,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [36] total 42 [2024-11-28 04:48:41,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669653035] [2024-11-28 04:48:41,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:48:41,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:48:41,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:48:41,796 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:48:41,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=287, Invalid=1435, Unknown=0, NotChecked=0, Total=1722 [2024-11-28 04:48:41,797 INFO L87 Difference]: Start difference. First operand 159 states and 233 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:48:45,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:48:45,137 INFO L93 Difference]: Finished difference Result 401 states and 585 transitions. [2024-11-28 04:48:45,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:48:45,139 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 127 [2024-11-28 04:48:45,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:48:45,141 INFO L225 Difference]: With dead ends: 401 [2024-11-28 04:48:45,141 INFO L226 Difference]: Without dead ends: 245 [2024-11-28 04:48:45,142 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=310, Invalid=1760, Unknown=0, NotChecked=0, Total=2070 [2024-11-28 04:48:45,143 INFO L435 NwaCegarLoop]: 194 mSDtfsCounter, 117 mSDsluCounter, 1022 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:48:45,143 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 1216 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-28 04:48:45,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2024-11-28 04:48:45,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 238. [2024-11-28 04:48:45,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 210 states have (on average 1.438095238095238) internal successors, (302), 211 states have internal predecessors, (302), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:48:45,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 348 transitions. [2024-11-28 04:48:45,157 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 348 transitions. Word has length 127 [2024-11-28 04:48:45,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:48:45,158 INFO L471 AbstractCegarLoop]: Abstraction has 238 states and 348 transitions. [2024-11-28 04:48:45,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:48:45,158 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 348 transitions. [2024-11-28 04:48:45,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-28 04:48:45,160 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:48:45,160 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:48:45,170 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:48:45,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:48:45,360 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:48:45,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:45,361 INFO L85 PathProgramCache]: Analyzing trace with hash 2025133114, now seen corresponding path program 1 times [2024-11-28 04:48:45,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:48:45,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1198513261] [2024-11-28 04:48:45,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:45,362 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 [2024-11-28 04:48:45,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:48:45,366 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 04:48:45,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:48:45,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:45,836 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 57 conjuncts are in the unsatisfiable core [2024-11-28 04:48:45,842 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:45,851 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 15 treesize of output 1 [2024-11-28 04:48:46,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 18 [2024-11-28 04:48:46,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 47 [2024-11-28 04:48:47,860 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 70 [2024-11-28 04:48:51,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 94 [2024-11-28 04:48:52,609 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:48:52,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 131 treesize of output 61 [2024-11-28 04:48:53,037 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 351 proven. 72 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-28 04:48:53,037 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:48:54,068 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:48:54,068 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:48:54,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1198513261] [2024-11-28 04:48:54,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1198513261] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:48:54,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:48:54,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [41] total 46 [2024-11-28 04:48:54,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108941607] [2024-11-28 04:48:54,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:48:54,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:48:54,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:48:54,069 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:48:54,070 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=349, Invalid=1721, Unknown=0, NotChecked=0, Total=2070 [2024-11-28 04:48:54,070 INFO L87 Difference]: Start difference. First operand 238 states and 348 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:48:55,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:48:55,448 INFO L93 Difference]: Finished difference Result 533 states and 779 transitions. [2024-11-28 04:48:55,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:48:55,449 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 127 [2024-11-28 04:48:55,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:48:55,451 INFO L225 Difference]: With dead ends: 533 [2024-11-28 04:48:55,451 INFO L226 Difference]: Without dead ends: 298 [2024-11-28 04:48:55,452 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=365, Invalid=1891, Unknown=0, NotChecked=0, Total=2256 [2024-11-28 04:48:55,452 INFO L435 NwaCegarLoop]: 229 mSDtfsCounter, 109 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 863 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:48:55,453 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 863 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:48:55,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-11-28 04:48:55,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 236. [2024-11-28 04:48:55,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 208 states have (on average 1.4375) internal successors, (299), 209 states have internal predecessors, (299), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:48:55,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 345 transitions. [2024-11-28 04:48:55,468 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 345 transitions. Word has length 127 [2024-11-28 04:48:55,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:48:55,468 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 345 transitions. [2024-11-28 04:48:55,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:48:55,469 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 345 transitions. [2024-11-28 04:48:55,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-28 04:48:55,470 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:48:55,471 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:48:55,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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)] Forceful destruction successful, exit code 0 [2024-11-28 04:48:55,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:48:55,671 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:48:55,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:55,672 INFO L85 PathProgramCache]: Analyzing trace with hash -584009745, now seen corresponding path program 1 times [2024-11-28 04:48:55,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:48:55,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1029882588] [2024-11-28 04:48:55,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:55,672 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 [2024-11-28 04:48:55,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:48:55,674 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 04:48:55,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:48:56,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:56,148 INFO L256 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:48:56,153 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:56,162 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 04:48:56,167 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 14 treesize of output 10 [2024-11-28 04:48:56,248 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 30 treesize of output 14 [2024-11-28 04:48:56,432 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 30 treesize of output 14 [2024-11-28 04:48:56,439 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 21 treesize of output 17 [2024-11-28 04:48:56,486 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 39 treesize of output 38 [2024-11-28 04:48:56,699 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2024-11-28 04:48:56,699 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:48:56,699 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:48:56,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1029882588] [2024-11-28 04:48:56,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1029882588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:48:56,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:48:56,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:48:56,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639872517] [2024-11-28 04:48:56,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:48:56,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:48:56,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:48:56,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:48:56,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:48:56,701 INFO L87 Difference]: Start difference. First operand 236 states and 345 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 04:48:58,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:48:58,825 INFO L93 Difference]: Finished difference Result 690 states and 994 transitions. [2024-11-28 04:48:58,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:48:58,827 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 128 [2024-11-28 04:48:58,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:48:58,832 INFO L225 Difference]: With dead ends: 690 [2024-11-28 04:48:58,832 INFO L226 Difference]: Without dead ends: 457 [2024-11-28 04:48:58,833 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:48:58,834 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 515 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:48:58,835 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 717 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 04:48:58,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2024-11-28 04:48:58,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 237. [2024-11-28 04:48:58,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 209 states have (on average 1.4354066985645932) internal successors, (300), 210 states have internal predecessors, (300), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-28 04:48:58,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 346 transitions. [2024-11-28 04:48:58,864 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 346 transitions. Word has length 128 [2024-11-28 04:48:58,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:48:58,864 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 346 transitions. [2024-11-28 04:48:58,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 04:48:58,865 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 346 transitions. [2024-11-28 04:48:58,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-28 04:48:58,866 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:48:58,867 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:48:58,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:48:59,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:48:59,067 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:48:59,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:59,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1011601530, now seen corresponding path program 1 times [2024-11-28 04:48:59,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:48:59,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [440059681] [2024-11-28 04:48:59,069 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:59,069 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 [2024-11-28 04:48:59,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:48:59,070 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 04:48:59,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:48:59,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:59,547 INFO L256 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-28 04:48:59,552 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:59,583 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 15 treesize of output 1 [2024-11-28 04:49:00,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 32 [2024-11-28 04:49:00,668 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:49:00,668 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 128 treesize of output 65 [2024-11-28 04:49:06,557 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:49:06,557 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 215 treesize of output 89 [2024-11-28 04:49:08,463 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 04:49:08,464 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:49:08,464 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:49:08,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [440059681] [2024-11-28 04:49:08,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [440059681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:49:08,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:49:08,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-28 04:49:08,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545363082] [2024-11-28 04:49:08,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:49:08,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 04:49:08,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:49:08,465 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 04:49:08,465 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:49:08,465 INFO L87 Difference]: Start difference. First operand 237 states and 346 transitions. Second operand has 16 states, 16 states have (on average 3.625) internal successors, (58), 15 states have internal predecessors, (58), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-28 04:49:29,326 WARN L286 SmtUtils]: Spent 8.69s on a formula simplification. DAG size of input: 80 DAG size of output: 75 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 04:49:35,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:49:35,503 INFO L93 Difference]: Finished difference Result 1117 states and 1628 transitions. [2024-11-28 04:49:35,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 04:49:35,504 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.625) internal successors, (58), 15 states have internal predecessors, (58), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 129 [2024-11-28 04:49:35,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:49:35,509 INFO L225 Difference]: With dead ends: 1117 [2024-11-28 04:49:35,509 INFO L226 Difference]: Without dead ends: 883 [2024-11-28 04:49:35,510 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 18.0s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:49:35,511 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 704 mSDsluCounter, 1383 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:49:35,511 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 1520 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 12.2s Time] [2024-11-28 04:49:35,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2024-11-28 04:49:35,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 392. [2024-11-28 04:49:35,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 319 states have (on average 1.3761755485893417) internal successors, (439), 325 states have internal predecessors, (439), 60 states have call successors, (60), 12 states have call predecessors, (60), 12 states have return successors, (60), 54 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-28 04:49:35,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 559 transitions. [2024-11-28 04:49:35,578 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 559 transitions. Word has length 129 [2024-11-28 04:49:35,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:49:35,578 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 559 transitions. [2024-11-28 04:49:35,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.625) internal successors, (58), 15 states have internal predecessors, (58), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-28 04:49:35,579 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 559 transitions. [2024-11-28 04:49:35,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-28 04:49:35,581 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:49:35,581 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:49:35,593 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:49:35,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:49:35,782 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:49:35,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:49:35,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1598407544, now seen corresponding path program 1 times [2024-11-28 04:49:35,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:49:35,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [481802987] [2024-11-28 04:49:35,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:49:35,783 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 [2024-11-28 04:49:35,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:49:35,785 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 04:49:35,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:49:36,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:49:36,396 INFO L256 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-11-28 04:49:36,404 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:49:36,422 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 12 treesize of output 8 [2024-11-28 04:49:36,816 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 22 [2024-11-28 04:49:37,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 51 [2024-11-28 04:49:38,885 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 74 [2024-11-28 04:49:43,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 100 [2024-11-28 04:49:44,833 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 21 treesize of output 17 [2024-11-28 04:49:45,375 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 47 treesize of output 35 [2024-11-28 04:49:47,317 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:49:47,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 213 treesize of output 95 [2024-11-28 04:49:48,238 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 356 proven. 72 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-28 04:49:48,238 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:49:56,420 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:49:56,420 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:49:56,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [481802987] [2024-11-28 04:49:56,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [481802987] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:49:56,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:49:56,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [47] total 56 [2024-11-28 04:49:56,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539336656] [2024-11-28 04:49:56,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:49:56,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:49:56,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:49:56,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:49:56,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=484, Invalid=2596, Unknown=0, NotChecked=0, Total=3080 [2024-11-28 04:49:56,422 INFO L87 Difference]: Start difference. First operand 392 states and 559 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:50:26,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:50:26,461 INFO L93 Difference]: Finished difference Result 1236 states and 1763 transitions. [2024-11-28 04:50:26,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:50:26,463 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 129 [2024-11-28 04:50:26,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:50:26,469 INFO L225 Difference]: With dead ends: 1236 [2024-11-28 04:50:26,469 INFO L226 Difference]: Without dead ends: 847 [2024-11-28 04:50:26,472 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1194 ImplicationChecksByTransitivity, 37.6s TimeCoverageRelationStatistics Valid=557, Invalid=3345, Unknown=4, NotChecked=0, Total=3906 [2024-11-28 04:50:26,473 INFO L435 NwaCegarLoop]: 243 mSDtfsCounter, 512 mSDsluCounter, 1490 mSDsCounter, 0 mSdLazyCounter, 1260 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 1733 SdHoareTripleChecker+Invalid, 1328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:50:26,473 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 1733 Invalid, 1328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1260 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2024-11-28 04:50:26,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2024-11-28 04:50:26,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 399. [2024-11-28 04:50:26,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 326 states have (on average 1.3742331288343559) internal successors, (448), 332 states have internal predecessors, (448), 60 states have call successors, (60), 12 states have call predecessors, (60), 12 states have return successors, (60), 54 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-28 04:50:26,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 568 transitions. [2024-11-28 04:50:26,547 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 568 transitions. Word has length 129 [2024-11-28 04:50:26,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:50:26,547 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 568 transitions. [2024-11-28 04:50:26,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:50:26,548 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 568 transitions. [2024-11-28 04:50:26,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-28 04:50:26,550 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:50:26,550 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:50:26,561 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:50:26,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:50:26,750 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:50:26,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:50:26,751 INFO L85 PathProgramCache]: Analyzing trace with hash 2003502088, now seen corresponding path program 1 times [2024-11-28 04:50:26,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:50:26,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [936245223] [2024-11-28 04:50:26,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:50:26,751 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 [2024-11-28 04:50:26,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:50:26,753 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 04:50:26,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:50:27,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:50:27,266 INFO L256 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-28 04:50:27,271 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:50:27,348 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 19 treesize of output 1 [2024-11-28 04:50:27,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 34 [2024-11-28 04:50:31,461 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:50:31,461 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 208 treesize of output 82 [2024-11-28 04:50:31,679 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 04:50:31,680 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:50:31,680 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:50:31,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [936245223] [2024-11-28 04:50:31,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [936245223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:50:31,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:50:31,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 04:50:31,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048364498] [2024-11-28 04:50:31,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:50:31,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:50:31,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:50:31,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:50:31,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:50:31,682 INFO L87 Difference]: Start difference. First operand 399 states and 568 transitions. Second operand has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-28 04:50:36,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:50:36,945 INFO L93 Difference]: Finished difference Result 1283 states and 1831 transitions. [2024-11-28 04:50:36,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:50:36,946 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 129 [2024-11-28 04:50:36,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:50:36,951 INFO L225 Difference]: With dead ends: 1283 [2024-11-28 04:50:36,951 INFO L226 Difference]: Without dead ends: 887 [2024-11-28 04:50:36,952 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:50:36,953 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 648 mSDsluCounter, 953 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 1101 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:50:36,953 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [648 Valid, 1101 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-28 04:50:36,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2024-11-28 04:50:37,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 865. [2024-11-28 04:50:37,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 736 states have (on average 1.3994565217391304) internal successors, (1030), 750 states have internal predecessors, (1030), 106 states have call successors, (106), 22 states have call predecessors, (106), 22 states have return successors, (106), 92 states have call predecessors, (106), 106 states have call successors, (106) [2024-11-28 04:50:37,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1242 transitions. [2024-11-28 04:50:37,063 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1242 transitions. Word has length 129 [2024-11-28 04:50:37,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:50:37,063 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1242 transitions. [2024-11-28 04:50:37,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-28 04:50:37,063 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1242 transitions. [2024-11-28 04:50:37,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-28 04:50:37,066 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:50:37,067 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:50:37,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:50:37,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:50:37,267 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:50:37,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:50:37,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1382473416, now seen corresponding path program 1 times [2024-11-28 04:50:37,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:50:37,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1848215408] [2024-11-28 04:50:37,268 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:50:37,268 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 [2024-11-28 04:50:37,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:50:37,270 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 04:50:37,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:50:37,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:50:37,800 INFO L256 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 55 conjuncts are in the unsatisfiable core [2024-11-28 04:50:37,807 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:50:37,826 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 12 treesize of output 8 [2024-11-28 04:50:38,131 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 41 treesize of output 32 [2024-11-28 04:50:38,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2024-11-28 04:50:39,692 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 58 [2024-11-28 04:50:43,487 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 94 [2024-11-28 04:50:44,539 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 21 treesize of output 17 [2024-11-28 04:50:45,075 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 47 treesize of output 35 [2024-11-28 04:50:47,049 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:50:47,050 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 206 treesize of output 88 [2024-11-28 04:50:48,058 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 358 proven. 66 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-28 04:50:48,059 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:50:51,605 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:50:51,605 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:50:51,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1848215408] [2024-11-28 04:50:51,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1848215408] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:50:51,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:50:51,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [40] total 49 [2024-11-28 04:50:51,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674294427] [2024-11-28 04:50:51,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:50:51,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:50:51,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:50:51,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:50:51,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=393, Invalid=1959, Unknown=0, NotChecked=0, Total=2352 [2024-11-28 04:50:51,608 INFO L87 Difference]: Start difference. First operand 865 states and 1242 transitions. Second operand has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:51:00,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:00,547 INFO L93 Difference]: Finished difference Result 2573 states and 3707 transitions. [2024-11-28 04:51:00,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:51:00,549 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 129 [2024-11-28 04:51:00,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:00,556 INFO L225 Difference]: With dead ends: 2573 [2024-11-28 04:51:00,556 INFO L226 Difference]: Without dead ends: 1711 [2024-11-28 04:51:00,559 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 953 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=470, Invalid=2610, Unknown=0, NotChecked=0, Total=3080 [2024-11-28 04:51:00,559 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 693 mSDsluCounter, 1327 mSDsCounter, 0 mSdLazyCounter, 1003 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 693 SdHoareTripleChecker+Valid, 1542 SdHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:00,559 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [693 Valid, 1542 Invalid, 1074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1003 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2024-11-28 04:51:00,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1711 states. [2024-11-28 04:51:00,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1711 to 883. [2024-11-28 04:51:00,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 754 states have (on average 1.3978779840848807) internal successors, (1054), 768 states have internal predecessors, (1054), 106 states have call successors, (106), 22 states have call predecessors, (106), 22 states have return successors, (106), 92 states have call predecessors, (106), 106 states have call successors, (106) [2024-11-28 04:51:00,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1266 transitions. [2024-11-28 04:51:00,701 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1266 transitions. Word has length 129 [2024-11-28 04:51:00,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:00,702 INFO L471 AbstractCegarLoop]: Abstraction has 883 states and 1266 transitions. [2024-11-28 04:51:00,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:51:00,702 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1266 transitions. [2024-11-28 04:51:00,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-28 04:51:00,704 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:00,705 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:00,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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)] Ended with exit code 0 [2024-11-28 04:51:00,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:51:00,905 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:51:00,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:00,906 INFO L85 PathProgramCache]: Analyzing trace with hash 702415046, now seen corresponding path program 1 times [2024-11-28 04:51:00,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:51:00,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [364845374] [2024-11-28 04:51:00,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:00,906 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 [2024-11-28 04:51:00,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:51:00,908 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 04:51:00,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:51:01,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:01,430 INFO L256 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-28 04:51:01,434 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:01,446 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 12 treesize of output 8 [2024-11-28 04:51:01,762 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 22 [2024-11-28 04:51:02,461 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:51:02,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 41 [2024-11-28 04:51:02,692 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:51:02,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 51 [2024-11-28 04:51:03,977 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:51:03,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 67 treesize of output 47 [2024-11-28 04:51:04,259 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:51:04,260 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 66 treesize of output 30 [2024-11-28 04:51:04,380 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 312 proven. 84 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:51:04,380 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:51:04,783 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:51:04,783 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:51:04,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [364845374] [2024-11-28 04:51:04,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [364845374] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:51:04,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:51:04,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [23] total 26 [2024-11-28 04:51:04,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556766868] [2024-11-28 04:51:04,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:04,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:51:04,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:51:04,784 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:51:04,785 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=527, Unknown=0, NotChecked=0, Total=650 [2024-11-28 04:51:04,785 INFO L87 Difference]: Start difference. First operand 883 states and 1266 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:51:05,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:05,700 INFO L93 Difference]: Finished difference Result 2232 states and 3192 transitions. [2024-11-28 04:51:05,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:51:05,701 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 129 [2024-11-28 04:51:05,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:05,708 INFO L225 Difference]: With dead ends: 2232 [2024-11-28 04:51:05,708 INFO L226 Difference]: Without dead ends: 1352 [2024-11-28 04:51:05,711 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 231 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=128, Invalid=574, Unknown=0, NotChecked=0, Total=702 [2024-11-28 04:51:05,711 INFO L435 NwaCegarLoop]: 234 mSDtfsCounter, 218 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:05,712 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 565 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:51:05,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1352 states. [2024-11-28 04:51:05,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1352 to 883. [2024-11-28 04:51:05,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 754 states have (on average 1.389920424403183) internal successors, (1048), 768 states have internal predecessors, (1048), 106 states have call successors, (106), 22 states have call predecessors, (106), 22 states have return successors, (106), 92 states have call predecessors, (106), 106 states have call successors, (106) [2024-11-28 04:51:05,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1260 transitions. [2024-11-28 04:51:05,854 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1260 transitions. Word has length 129 [2024-11-28 04:51:05,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:05,855 INFO L471 AbstractCegarLoop]: Abstraction has 883 states and 1260 transitions. [2024-11-28 04:51:05,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:51:05,855 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1260 transitions. [2024-11-28 04:51:05,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-28 04:51:05,858 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:05,858 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:05,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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)] Ended with exit code 0 [2024-11-28 04:51:06,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:51:06,059 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:51:06,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:06,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1634883132, now seen corresponding path program 1 times [2024-11-28 04:51:06,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:51:06,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1880556401] [2024-11-28 04:51:06,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:06,060 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 [2024-11-28 04:51:06,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:51:06,064 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 04:51:06,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:51:06,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:06,500 INFO L256 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:51:06,503 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:06,523 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2024-11-28 04:51:06,523 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:51:06,523 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:51:06,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1880556401] [2024-11-28 04:51:06,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1880556401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:06,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:51:06,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:51:06,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952439087] [2024-11-28 04:51:06,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:06,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:51:06,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:51:06,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:51:06,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:51:06,524 INFO L87 Difference]: Start difference. First operand 883 states and 1260 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 04:51:06,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:06,632 INFO L93 Difference]: Finished difference Result 1771 states and 2529 transitions. [2024-11-28 04:51:06,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:51:06,633 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 129 [2024-11-28 04:51:06,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:06,636 INFO L225 Difference]: With dead ends: 1771 [2024-11-28 04:51:06,636 INFO L226 Difference]: Without dead ends: 891 [2024-11-28 04:51:06,638 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:51:06,639 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 0 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:06,639 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 472 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:51:06,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2024-11-28 04:51:06,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 891. [2024-11-28 04:51:06,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 891 states, 762 states have (on average 1.3805774278215224) internal successors, (1052), 776 states have internal predecessors, (1052), 106 states have call successors, (106), 22 states have call predecessors, (106), 22 states have return successors, (106), 92 states have call predecessors, (106), 106 states have call successors, (106) [2024-11-28 04:51:06,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1264 transitions. [2024-11-28 04:51:06,764 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1264 transitions. Word has length 129 [2024-11-28 04:51:06,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:06,765 INFO L471 AbstractCegarLoop]: Abstraction has 891 states and 1264 transitions. [2024-11-28 04:51:06,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 04:51:06,766 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1264 transitions. [2024-11-28 04:51:06,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-28 04:51:06,768 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:06,769 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:06,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:51:06,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:51:06,969 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:51:06,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:06,970 INFO L85 PathProgramCache]: Analyzing trace with hash 917330696, now seen corresponding path program 1 times [2024-11-28 04:51:06,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:51:06,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [752534007] [2024-11-28 04:51:06,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:06,971 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 [2024-11-28 04:51:06,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:51:06,973 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 04:51:06,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:51:07,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:07,417 INFO L256 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:51:07,420 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:07,439 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-28 04:51:07,439 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:51:07,439 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:51:07,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [752534007] [2024-11-28 04:51:07,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [752534007] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:07,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:51:07,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:51:07,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420523106] [2024-11-28 04:51:07,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:07,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:51:07,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:51:07,441 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:51:07,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:51:07,441 INFO L87 Difference]: Start difference. First operand 891 states and 1264 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 04:51:07,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:07,549 INFO L93 Difference]: Finished difference Result 1779 states and 2525 transitions. [2024-11-28 04:51:07,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:51:07,550 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 129 [2024-11-28 04:51:07,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:07,554 INFO L225 Difference]: With dead ends: 1779 [2024-11-28 04:51:07,554 INFO L226 Difference]: Without dead ends: 891 [2024-11-28 04:51:07,556 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:51:07,557 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 0 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:07,557 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 472 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:51:07,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2024-11-28 04:51:07,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 891. [2024-11-28 04:51:07,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 891 states, 762 states have (on average 1.3753280839895012) internal successors, (1048), 776 states have internal predecessors, (1048), 106 states have call successors, (106), 22 states have call predecessors, (106), 22 states have return successors, (106), 92 states have call predecessors, (106), 106 states have call successors, (106) [2024-11-28 04:51:07,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1260 transitions. [2024-11-28 04:51:07,691 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1260 transitions. Word has length 129 [2024-11-28 04:51:07,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:07,692 INFO L471 AbstractCegarLoop]: Abstraction has 891 states and 1260 transitions. [2024-11-28 04:51:07,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 04:51:07,692 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1260 transitions. [2024-11-28 04:51:07,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-28 04:51:07,695 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:07,695 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:07,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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)] Ended with exit code 0 [2024-11-28 04:51:07,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:51:07,899 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:51:07,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:07,901 INFO L85 PathProgramCache]: Analyzing trace with hash -64563644, now seen corresponding path program 1 times [2024-11-28 04:51:07,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:51:07,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [926298071] [2024-11-28 04:51:07,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:07,902 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 [2024-11-28 04:51:07,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:51:07,904 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 04:51:07,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:51:08,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:08,259 INFO L256 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:51:08,261 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:08,277 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:51:08,277 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:51:08,278 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:51:08,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [926298071] [2024-11-28 04:51:08,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [926298071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:08,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:51:08,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:51:08,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610070100] [2024-11-28 04:51:08,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:08,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:51:08,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:51:08,279 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:51:08,279 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:51:08,279 INFO L87 Difference]: Start difference. First operand 891 states and 1260 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:51:08,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:08,396 INFO L93 Difference]: Finished difference Result 1779 states and 2517 transitions. [2024-11-28 04:51:08,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:51:08,397 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 129 [2024-11-28 04:51:08,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:08,400 INFO L225 Difference]: With dead ends: 1779 [2024-11-28 04:51:08,400 INFO L226 Difference]: Without dead ends: 891 [2024-11-28 04:51:08,402 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:51:08,402 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 0 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:08,403 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 473 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:51:08,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2024-11-28 04:51:08,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 891. [2024-11-28 04:51:08,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 891 states, 762 states have (on average 1.3674540682414698) internal successors, (1042), 776 states have internal predecessors, (1042), 106 states have call successors, (106), 22 states have call predecessors, (106), 22 states have return successors, (106), 92 states have call predecessors, (106), 106 states have call successors, (106) [2024-11-28 04:51:08,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1254 transitions. [2024-11-28 04:51:08,525 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1254 transitions. Word has length 129 [2024-11-28 04:51:08,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:08,526 INFO L471 AbstractCegarLoop]: Abstraction has 891 states and 1254 transitions. [2024-11-28 04:51:08,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:51:08,526 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1254 transitions. [2024-11-28 04:51:08,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-28 04:51:08,528 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:08,529 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:08,537 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:51:08,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:51:08,729 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:51:08,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:08,730 INFO L85 PathProgramCache]: Analyzing trace with hash 2039237587, now seen corresponding path program 1 times [2024-11-28 04:51:08,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:51:08,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1816658786] [2024-11-28 04:51:08,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:08,730 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 [2024-11-28 04:51:08,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:51:08,732 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 04:51:08,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:51:09,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:09,065 INFO L256 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:51:09,068 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:09,072 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 21 treesize of output 17 [2024-11-28 04:51:09,166 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:51:09,166 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:51:09,166 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:51:09,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1816658786] [2024-11-28 04:51:09,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1816658786] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:09,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:51:09,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:51:09,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732019496] [2024-11-28 04:51:09,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:09,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:51:09,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:51:09,167 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:51:09,167 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:51:09,167 INFO L87 Difference]: Start difference. First operand 891 states and 1254 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:51:10,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:10,012 INFO L93 Difference]: Finished difference Result 1510 states and 2082 transitions. [2024-11-28 04:51:10,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:51:10,012 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 130 [2024-11-28 04:51:10,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:10,017 INFO L225 Difference]: With dead ends: 1510 [2024-11-28 04:51:10,017 INFO L226 Difference]: Without dead ends: 1508 [2024-11-28 04:51:10,018 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:51:10,018 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 101 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 1043 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:10,018 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 1043 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:51:10,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2024-11-28 04:51:10,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 1502. [2024-11-28 04:51:10,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1502 states, 1265 states have (on average 1.332806324110672) internal successors, (1686), 1297 states have internal predecessors, (1686), 192 states have call successors, (192), 44 states have call predecessors, (192), 44 states have return successors, (192), 160 states have call predecessors, (192), 192 states have call successors, (192) [2024-11-28 04:51:10,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 2070 transitions. [2024-11-28 04:51:10,253 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 2070 transitions. Word has length 130 [2024-11-28 04:51:10,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:10,253 INFO L471 AbstractCegarLoop]: Abstraction has 1502 states and 2070 transitions. [2024-11-28 04:51:10,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:51:10,254 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 2070 transitions. [2024-11-28 04:51:10,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-28 04:51:10,256 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:10,256 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:10,264 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:51:10,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:51:10,457 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:51:10,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:10,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1526447544, now seen corresponding path program 1 times [2024-11-28 04:51:10,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:51:10,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1556852302] [2024-11-28 04:51:10,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:10,458 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 [2024-11-28 04:51:10,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:51:10,459 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 04:51:10,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:51:10,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:11,006 INFO L256 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-28 04:51:11,010 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:11,020 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 04:51:11,236 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 20 [2024-11-28 04:51:11,851 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 49 [2024-11-28 04:51:14,494 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 85 [2024-11-28 04:51:16,027 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:51:16,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 178 treesize of output 76 [2024-11-28 04:51:16,514 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 323 proven. 54 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-28 04:51:16,514 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:51:18,444 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:51:18,445 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:51:18,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1556852302] [2024-11-28 04:51:18,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1556852302] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:51:18,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:51:18,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [34] total 40 [2024-11-28 04:51:18,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276826358] [2024-11-28 04:51:18,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:18,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:51:18,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:51:18,446 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:51:18,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=1332, Unknown=0, NotChecked=0, Total=1560 [2024-11-28 04:51:18,447 INFO L87 Difference]: Start difference. First operand 1502 states and 2070 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:51:22,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:22,516 INFO L93 Difference]: Finished difference Result 3809 states and 5226 transitions. [2024-11-28 04:51:22,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:51:22,518 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 130 [2024-11-28 04:51:22,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:22,524 INFO L225 Difference]: With dead ends: 3809 [2024-11-28 04:51:22,524 INFO L226 Difference]: Without dead ends: 2310 [2024-11-28 04:51:22,526 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=251, Invalid=1641, Unknown=0, NotChecked=0, Total=1892 [2024-11-28 04:51:22,526 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 119 mSDsluCounter, 1119 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 1347 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:22,526 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 1347 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-28 04:51:22,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2310 states. [2024-11-28 04:51:22,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2310 to 1499. [2024-11-28 04:51:22,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1499 states, 1262 states have (on average 1.3335974643423139) internal successors, (1683), 1294 states have internal predecessors, (1683), 192 states have call successors, (192), 44 states have call predecessors, (192), 44 states have return successors, (192), 160 states have call predecessors, (192), 192 states have call successors, (192) [2024-11-28 04:51:22,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1499 states to 1499 states and 2067 transitions. [2024-11-28 04:51:22,863 INFO L78 Accepts]: Start accepts. Automaton has 1499 states and 2067 transitions. Word has length 130 [2024-11-28 04:51:22,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:22,863 INFO L471 AbstractCegarLoop]: Abstraction has 1499 states and 2067 transitions. [2024-11-28 04:51:22,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:51:22,864 INFO L276 IsEmpty]: Start isEmpty. Operand 1499 states and 2067 transitions. [2024-11-28 04:51:22,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-28 04:51:22,866 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:22,866 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:22,877 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:51:23,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:51:23,067 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:51:23,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:23,068 INFO L85 PathProgramCache]: Analyzing trace with hash 517562172, now seen corresponding path program 1 times [2024-11-28 04:51:23,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:51:23,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1147046186] [2024-11-28 04:51:23,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:23,068 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 [2024-11-28 04:51:23,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:51:23,070 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 04:51:23,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:51:23,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:23,681 INFO L256 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-28 04:51:23,687 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:23,701 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 15 treesize of output 1 [2024-11-28 04:51:23,973 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 38 treesize of output 18 [2024-11-28 04:51:24,101 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 28 [2024-11-28 04:51:24,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 51 [2024-11-28 04:51:27,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 87 [2024-11-28 04:51:29,116 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:51:29,116 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 180 treesize of output 80 [2024-11-28 04:51:29,524 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 353 proven. 66 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-28 04:51:29,525 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:51:31,138 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:51:31,138 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:51:31,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1147046186] [2024-11-28 04:51:31,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1147046186] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:51:31,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:51:31,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [35] total 41 [2024-11-28 04:51:31,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283236344] [2024-11-28 04:51:31,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:31,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:51:31,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:51:31,140 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:51:31,141 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=254, Invalid=1386, Unknown=0, NotChecked=0, Total=1640 [2024-11-28 04:51:31,141 INFO L87 Difference]: Start difference. First operand 1499 states and 2067 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:51:34,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:34,661 INFO L93 Difference]: Finished difference Result 3118 states and 4292 transitions. [2024-11-28 04:51:34,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:51:34,662 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 130 [2024-11-28 04:51:34,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:34,666 INFO L225 Difference]: With dead ends: 3118 [2024-11-28 04:51:34,666 INFO L226 Difference]: Without dead ends: 1622 [2024-11-28 04:51:34,668 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=277, Invalid=1703, Unknown=0, NotChecked=0, Total=1980 [2024-11-28 04:51:34,669 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 114 mSDsluCounter, 1131 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 1361 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:34,669 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 1361 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-28 04:51:34,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2024-11-28 04:51:35,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 1544. [2024-11-28 04:51:35,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1544 states, 1292 states have (on average 1.328173374613003) internal successors, (1716), 1327 states have internal predecessors, (1716), 204 states have call successors, (204), 47 states have call predecessors, (204), 47 states have return successors, (204), 169 states have call predecessors, (204), 204 states have call successors, (204) [2024-11-28 04:51:35,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1544 states to 1544 states and 2124 transitions. [2024-11-28 04:51:35,083 INFO L78 Accepts]: Start accepts. Automaton has 1544 states and 2124 transitions. Word has length 130 [2024-11-28 04:51:35,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:35,084 INFO L471 AbstractCegarLoop]: Abstraction has 1544 states and 2124 transitions. [2024-11-28 04:51:35,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:51:35,084 INFO L276 IsEmpty]: Start isEmpty. Operand 1544 states and 2124 transitions. [2024-11-28 04:51:35,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-28 04:51:35,088 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:35,088 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:35,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:51:35,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:51:35,288 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:51:35,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:35,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1831276299, now seen corresponding path program 1 times [2024-11-28 04:51:35,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:51:35,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1720010930] [2024-11-28 04:51:35,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:35,289 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 [2024-11-28 04:51:35,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:51:35,291 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 04:51:35,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:51:35,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:35,692 INFO L256 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 04:51:35,697 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:35,704 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 21 treesize of output 17 [2024-11-28 04:51:35,726 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 47 treesize of output 35 [2024-11-28 04:51:36,218 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 27 treesize of output 15 [2024-11-28 04:51:36,225 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:51:36,225 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 78 treesize of output 34 [2024-11-28 04:51:36,356 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:51:36,356 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:51:36,357 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:51:36,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1720010930] [2024-11-28 04:51:36,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1720010930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:36,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:51:36,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 04:51:36,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240423736] [2024-11-28 04:51:36,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:36,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:51:36,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:51:36,358 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:51:36,358 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:51:36,358 INFO L87 Difference]: Start difference. First operand 1544 states and 2124 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:51:40,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:40,753 INFO L93 Difference]: Finished difference Result 3608 states and 4943 transitions. [2024-11-28 04:51:40,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:51:40,755 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 131 [2024-11-28 04:51:40,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:40,764 INFO L225 Difference]: With dead ends: 3608 [2024-11-28 04:51:40,765 INFO L226 Difference]: Without dead ends: 2130 [2024-11-28 04:51:40,768 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:51:40,769 INFO L435 NwaCegarLoop]: 225 mSDtfsCounter, 220 mSDsluCounter, 916 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 1141 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:40,769 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 1141 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 718 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-28 04:51:40,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2130 states. [2024-11-28 04:51:41,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2130 to 1568. [2024-11-28 04:51:41,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1316 states have (on average 1.3290273556231003) internal successors, (1749), 1351 states have internal predecessors, (1749), 204 states have call successors, (204), 47 states have call predecessors, (204), 47 states have return successors, (204), 169 states have call predecessors, (204), 204 states have call successors, (204) [2024-11-28 04:51:41,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2157 transitions. [2024-11-28 04:51:41,152 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2157 transitions. Word has length 131 [2024-11-28 04:51:41,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:41,153 INFO L471 AbstractCegarLoop]: Abstraction has 1568 states and 2157 transitions. [2024-11-28 04:51:41,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:51:41,153 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2157 transitions. [2024-11-28 04:51:41,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-28 04:51:41,155 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:41,156 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:41,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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)] Forceful destruction successful, exit code 0 [2024-11-28 04:51:41,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:51:41,356 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:51:41,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:41,357 INFO L85 PathProgramCache]: Analyzing trace with hash -451741133, now seen corresponding path program 1 times [2024-11-28 04:51:41,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:51:41,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [57525378] [2024-11-28 04:51:41,357 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:41,357 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 [2024-11-28 04:51:41,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:51:41,359 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 04:51:41,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 (23)] Waiting until timeout for monitored process [2024-11-28 04:51:41,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:41,807 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:51:41,809 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:41,924 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:51:41,924 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 40 treesize of output 16 [2024-11-28 04:51:42,032 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:51:42,032 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:51:42,032 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:51:42,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [57525378] [2024-11-28 04:51:42,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [57525378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:42,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:51:42,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:51:42,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751713837] [2024-11-28 04:51:42,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:42,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:51:42,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:51:42,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:51:42,034 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:51:42,034 INFO L87 Difference]: Start difference. First operand 1568 states and 2157 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:51:44,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:44,711 INFO L93 Difference]: Finished difference Result 3664 states and 5012 transitions. [2024-11-28 04:51:44,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:51:44,712 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 131 [2024-11-28 04:51:44,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:44,721 INFO L225 Difference]: With dead ends: 3664 [2024-11-28 04:51:44,722 INFO L226 Difference]: Without dead ends: 2162 [2024-11-28 04:51:44,724 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:51:44,726 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 126 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:44,726 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 545 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-28 04:51:44,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2162 states. [2024-11-28 04:51:45,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2162 to 1668. [2024-11-28 04:51:45,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1668 states, 1392 states have (on average 1.3110632183908046) internal successors, (1825), 1427 states have internal predecessors, (1825), 220 states have call successors, (220), 55 states have call predecessors, (220), 55 states have return successors, (220), 185 states have call predecessors, (220), 220 states have call successors, (220) [2024-11-28 04:51:45,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1668 states to 1668 states and 2265 transitions. [2024-11-28 04:51:45,086 INFO L78 Accepts]: Start accepts. Automaton has 1668 states and 2265 transitions. Word has length 131 [2024-11-28 04:51:45,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:45,086 INFO L471 AbstractCegarLoop]: Abstraction has 1668 states and 2265 transitions. [2024-11-28 04:51:45,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:51:45,087 INFO L276 IsEmpty]: Start isEmpty. Operand 1668 states and 2265 transitions. [2024-11-28 04:51:45,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 04:51:45,090 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:45,090 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:45,099 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 (23)] Ended with exit code 0 [2024-11-28 04:51:45,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:51:45,291 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:51:45,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:45,292 INFO L85 PathProgramCache]: Analyzing trace with hash -933898665, now seen corresponding path program 1 times [2024-11-28 04:51:45,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:51:45,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1998173389] [2024-11-28 04:51:45,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:45,292 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 [2024-11-28 04:51:45,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:51:45,294 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 04:51:45,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 (24)] Waiting until timeout for monitored process [2024-11-28 04:51:45,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:45,732 INFO L256 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:51:45,734 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:45,811 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:51:45,811 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 41 treesize of output 17 [2024-11-28 04:51:45,896 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:51:45,896 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:51:45,897 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:51:45,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1998173389] [2024-11-28 04:51:45,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1998173389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:45,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:51:45,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:51:45,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602272606] [2024-11-28 04:51:45,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:45,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:51:45,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:51:45,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:51:45,898 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:51:45,898 INFO L87 Difference]: Start difference. First operand 1668 states and 2265 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:51:47,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:47,984 INFO L93 Difference]: Finished difference Result 3250 states and 4400 transitions. [2024-11-28 04:51:47,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:51:47,985 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 132 [2024-11-28 04:51:47,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:47,993 INFO L225 Difference]: With dead ends: 3250 [2024-11-28 04:51:47,993 INFO L226 Difference]: Without dead ends: 1648 [2024-11-28 04:51:47,996 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:51:47,996 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 115 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:47,997 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 578 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 04:51:47,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1648 states. [2024-11-28 04:51:48,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1648 to 1366. [2024-11-28 04:51:48,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1366 states, 1152 states have (on average 1.3081597222222223) internal successors, (1507), 1178 states have internal predecessors, (1507), 169 states have call successors, (169), 44 states have call predecessors, (169), 44 states have return successors, (169), 143 states have call predecessors, (169), 169 states have call successors, (169) [2024-11-28 04:51:48,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1366 states to 1366 states and 1845 transitions. [2024-11-28 04:51:48,178 INFO L78 Accepts]: Start accepts. Automaton has 1366 states and 1845 transitions. Word has length 132 [2024-11-28 04:51:48,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:48,178 INFO L471 AbstractCegarLoop]: Abstraction has 1366 states and 1845 transitions. [2024-11-28 04:51:48,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:51:48,179 INFO L276 IsEmpty]: Start isEmpty. Operand 1366 states and 1845 transitions. [2024-11-28 04:51:48,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 04:51:48,181 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:48,181 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:48,190 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 (24)] Ended with exit code 0 [2024-11-28 04:51:48,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:51:48,382 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:51:48,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:48,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1427826744, now seen corresponding path program 1 times [2024-11-28 04:51:48,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:51:48,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1103209312] [2024-11-28 04:51:48,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:48,383 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 [2024-11-28 04:51:48,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:51:48,384 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 04:51:48,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 (25)] Waiting until timeout for monitored process [2024-11-28 04:51:48,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:48,767 INFO L256 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 04:51:48,770 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:48,775 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 21 treesize of output 17 [2024-11-28 04:51:48,793 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 47 treesize of output 35 [2024-11-28 04:51:49,220 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 27 treesize of output 15 [2024-11-28 04:51:49,227 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:51:49,227 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 77 treesize of output 33 [2024-11-28 04:51:50,369 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:51:50,370 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:51:50,370 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:51:50,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1103209312] [2024-11-28 04:51:50,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1103209312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:51:50,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:51:50,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 04:51:50,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960421974] [2024-11-28 04:51:50,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:51:50,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:51:50,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:51:50,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:51:50,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:51:50,371 INFO L87 Difference]: Start difference. First operand 1366 states and 1845 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:51:53,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:51:58,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:51:59,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:59,612 INFO L93 Difference]: Finished difference Result 2817 states and 3800 transitions. [2024-11-28 04:51:59,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:51:59,613 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 132 [2024-11-28 04:51:59,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:59,618 INFO L225 Difference]: With dead ends: 2817 [2024-11-28 04:51:59,618 INFO L226 Difference]: Without dead ends: 1517 [2024-11-28 04:51:59,620 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:51:59,620 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 193 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 27 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:59,621 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 966 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 518 Invalid, 1 Unknown, 0 Unchecked, 8.6s Time] [2024-11-28 04:51:59,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2024-11-28 04:51:59,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 1366. [2024-11-28 04:51:59,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1366 states, 1152 states have (on average 1.3055555555555556) internal successors, (1504), 1178 states have internal predecessors, (1504), 169 states have call successors, (169), 44 states have call predecessors, (169), 44 states have return successors, (169), 143 states have call predecessors, (169), 169 states have call successors, (169) [2024-11-28 04:51:59,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1366 states to 1366 states and 1842 transitions. [2024-11-28 04:51:59,854 INFO L78 Accepts]: Start accepts. Automaton has 1366 states and 1842 transitions. Word has length 132 [2024-11-28 04:51:59,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:59,854 INFO L471 AbstractCegarLoop]: Abstraction has 1366 states and 1842 transitions. [2024-11-28 04:51:59,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:51:59,854 INFO L276 IsEmpty]: Start isEmpty. Operand 1366 states and 1842 transitions. [2024-11-28 04:51:59,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-28 04:51:59,857 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:59,857 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:51:59,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 (25)] Ended with exit code 0 [2024-11-28 04:52:00,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:52:00,058 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:52:00,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:52:00,058 INFO L85 PathProgramCache]: Analyzing trace with hash 584838400, now seen corresponding path program 1 times [2024-11-28 04:52:00,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:52:00,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [629292735] [2024-11-28 04:52:00,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:00,059 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 [2024-11-28 04:52:00,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:52:00,060 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 04:52:00,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 (26)] Waiting until timeout for monitored process [2024-11-28 04:52:00,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:00,459 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:52:00,462 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:52:00,466 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 21 treesize of output 17 [2024-11-28 04:52:00,596 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:52:00,596 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:52:00,596 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:52:00,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [629292735] [2024-11-28 04:52:00,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [629292735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:52:00,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:52:00,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:52:00,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022692640] [2024-11-28 04:52:00,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:52:00,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:52:00,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:52:00,598 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:52:00,598 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:52:00,598 INFO L87 Difference]: Start difference. First operand 1366 states and 1842 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:52:01,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:52:01,952 INFO L93 Difference]: Finished difference Result 2218 states and 2959 transitions. [2024-11-28 04:52:01,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:52:01,954 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 133 [2024-11-28 04:52:01,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:52:01,962 INFO L225 Difference]: With dead ends: 2218 [2024-11-28 04:52:01,963 INFO L226 Difference]: Without dead ends: 2216 [2024-11-28 04:52:01,963 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:52:01,964 INFO L435 NwaCegarLoop]: 201 mSDtfsCounter, 90 mSDsluCounter, 1077 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 1278 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:52:01,968 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 1278 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:52:01,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2216 states. [2024-11-28 04:52:02,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2216 to 1456. [2024-11-28 04:52:02,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 1242 states have (on average 1.2979066022544283) internal successors, (1612), 1268 states have internal predecessors, (1612), 169 states have call successors, (169), 44 states have call predecessors, (169), 44 states have return successors, (169), 143 states have call predecessors, (169), 169 states have call successors, (169) [2024-11-28 04:52:02,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 1950 transitions. [2024-11-28 04:52:02,288 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 1950 transitions. Word has length 133 [2024-11-28 04:52:02,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:52:02,289 INFO L471 AbstractCegarLoop]: Abstraction has 1456 states and 1950 transitions. [2024-11-28 04:52:02,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:52:02,289 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 1950 transitions. [2024-11-28 04:52:02,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-28 04:52:02,291 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:52:02,291 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:52:02,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 (26)] Ended with exit code 0 [2024-11-28 04:52:02,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:52:02,492 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:52:02,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:52:02,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1257941349, now seen corresponding path program 1 times [2024-11-28 04:52:02,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:52:02,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1294090891] [2024-11-28 04:52:02,492 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:52:02,493 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 [2024-11-28 04:52:02,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:52:02,494 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 04:52:02,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 (27)] Waiting until timeout for monitored process [2024-11-28 04:52:30,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:52:31,233 INFO L256 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 04:52:31,236 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:52:47,584 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:52:47,584 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 267 treesize of output 99 [2024-11-28 04:52:50,188 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2024-11-28 04:52:50,188 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:52:50,188 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:52:50,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1294090891] [2024-11-28 04:52:50,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1294090891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:52:50,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:52:50,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 04:52:50,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584032616] [2024-11-28 04:52:50,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:52:50,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:52:50,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:52:50,190 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:52:50,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:52:50,190 INFO L87 Difference]: Start difference. First operand 1456 states and 1950 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 13 states have internal predecessors, (61), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 04:53:25,672 WARN L286 SmtUtils]: Spent 10.37s on a formula simplification. DAG size of input: 83 DAG size of output: 75 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 04:53:37,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:37,583 INFO L93 Difference]: Finished difference Result 3648 states and 4888 transitions. [2024-11-28 04:53:37,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:53:37,584 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 13 states have internal predecessors, (61), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 135 [2024-11-28 04:53:37,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:37,594 INFO L225 Difference]: With dead ends: 3648 [2024-11-28 04:53:37,598 INFO L226 Difference]: Without dead ends: 2258 [2024-11-28 04:53:37,600 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 26.5s TimeCoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:53:37,602 INFO L435 NwaCegarLoop]: 212 mSDtfsCounter, 309 mSDsluCounter, 1757 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 1969 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:37,603 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 1969 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 31.1s Time] [2024-11-28 04:53:37,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2258 states. [2024-11-28 04:53:37,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2258 to 2092. [2024-11-28 04:53:37,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2092 states, 1796 states have (on average 1.2934298440979954) internal successors, (2323), 1843 states have internal predecessors, (2323), 230 states have call successors, (230), 65 states have call predecessors, (230), 65 states have return successors, (230), 183 states have call predecessors, (230), 230 states have call successors, (230) [2024-11-28 04:53:37,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2092 states to 2092 states and 2783 transitions. [2024-11-28 04:53:37,918 INFO L78 Accepts]: Start accepts. Automaton has 2092 states and 2783 transitions. Word has length 135 [2024-11-28 04:53:37,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:37,918 INFO L471 AbstractCegarLoop]: Abstraction has 2092 states and 2783 transitions. [2024-11-28 04:53:37,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 13 states have internal predecessors, (61), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 04:53:37,919 INFO L276 IsEmpty]: Start isEmpty. Operand 2092 states and 2783 transitions. [2024-11-28 04:53:37,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-28 04:53:37,920 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:37,921 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:37,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 (27)] Ended with exit code 0 [2024-11-28 04:53:38,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:53:38,121 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:53:38,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:38,121 INFO L85 PathProgramCache]: Analyzing trace with hash -577882979, now seen corresponding path program 1 times [2024-11-28 04:53:38,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:53:38,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1826526746] [2024-11-28 04:53:38,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:38,122 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 [2024-11-28 04:53:38,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:53:38,124 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 04:53:38,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 (28)] Waiting until timeout for monitored process [2024-11-28 04:53:38,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:38,683 INFO L256 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:53:38,686 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:38,691 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 21 treesize of output 17 [2024-11-28 04:53:38,715 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 39 treesize of output 38 [2024-11-28 04:53:38,886 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:53:38,886 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:53:38,886 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:53:38,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1826526746] [2024-11-28 04:53:38,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1826526746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:53:38,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:53:38,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:53:38,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30505397] [2024-11-28 04:53:38,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:53:38,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:53:38,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:53:38,887 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:53:38,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:53:38,887 INFO L87 Difference]: Start difference. First operand 2092 states and 2783 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:53:41,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:53:41,590 INFO L93 Difference]: Finished difference Result 5983 states and 7968 transitions. [2024-11-28 04:53:41,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:53:41,591 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 135 [2024-11-28 04:53:41,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:53:41,609 INFO L225 Difference]: With dead ends: 5983 [2024-11-28 04:53:41,609 INFO L226 Difference]: Without dead ends: 3966 [2024-11-28 04:53:41,613 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:53:41,614 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 320 mSDsluCounter, 1115 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 1363 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:53:41,614 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 1363 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 04:53:41,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3966 states. [2024-11-28 04:53:41,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3966 to 2382. [2024-11-28 04:53:41,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2382 states, 2086 states have (on average 1.2929050814956855) internal successors, (2697), 2133 states have internal predecessors, (2697), 230 states have call successors, (230), 65 states have call predecessors, (230), 65 states have return successors, (230), 183 states have call predecessors, (230), 230 states have call successors, (230) [2024-11-28 04:53:41,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2382 states to 2382 states and 3157 transitions. [2024-11-28 04:53:41,950 INFO L78 Accepts]: Start accepts. Automaton has 2382 states and 3157 transitions. Word has length 135 [2024-11-28 04:53:41,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:53:41,951 INFO L471 AbstractCegarLoop]: Abstraction has 2382 states and 3157 transitions. [2024-11-28 04:53:41,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:53:41,951 INFO L276 IsEmpty]: Start isEmpty. Operand 2382 states and 3157 transitions. [2024-11-28 04:53:41,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-28 04:53:41,954 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:53:41,954 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:53:41,965 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 (28)] Ended with exit code 0 [2024-11-28 04:53:42,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:53:42,155 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:53:42,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:53:42,156 INFO L85 PathProgramCache]: Analyzing trace with hash 34153230, now seen corresponding path program 1 times [2024-11-28 04:53:42,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:53:42,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [669457517] [2024-11-28 04:53:42,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:42,157 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 [2024-11-28 04:53:42,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:53:42,160 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 04:53:42,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 (29)] Waiting until timeout for monitored process [2024-11-28 04:53:42,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:42,738 INFO L256 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-28 04:53:42,744 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:42,753 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 15 treesize of output 1 [2024-11-28 04:53:42,829 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 12 treesize of output 8 [2024-11-28 04:53:43,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 22 [2024-11-28 04:53:44,062 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 50 [2024-11-28 04:53:45,189 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 54 [2024-11-28 04:53:49,612 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:53:49,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 69 [2024-11-28 04:53:49,938 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 27 treesize of output 11 [2024-11-28 04:53:49,972 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 35 treesize of output 27 [2024-11-28 04:53:50,314 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:53:50,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 112 treesize of output 52 [2024-11-28 04:53:50,363 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 11 [2024-11-28 04:53:50,613 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 366 proven. 84 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 04:53:50,613 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:53:55,368 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 54 treesize of output 46 [2024-11-28 04:53:56,176 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:53:56,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [669457517] [2024-11-28 04:53:56,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [669457517] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:53:56,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1771990846] [2024-11-28 04:53:56,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:53:56,177 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:53:56,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:53:56,184 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:53:56,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2024-11-28 04:53:57,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:53:57,558 INFO L256 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-28 04:53:57,562 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:53:57,922 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 15 treesize of output 1 [2024-11-28 04:53:58,977 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 15 treesize of output 1 [2024-11-28 04:54:00,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-28 04:54:00,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2024-11-28 04:54:02,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 29 [2024-11-28 04:54:06,203 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:54:06,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 45 [2024-11-28 04:54:06,238 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-28 04:54:06,317 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 33 treesize of output 25 [2024-11-28 04:54:06,733 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:54:06,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 73 treesize of output 41 [2024-11-28 04:54:06,769 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 11 [2024-11-28 04:54:14,466 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 370 proven. 66 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-28 04:54:14,466 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:54:17,263 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 54 treesize of output 46 [2024-11-28 04:54:18,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1771990846] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:54:18,516 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:54:18,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 25] total 61 [2024-11-28 04:54:18,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791659257] [2024-11-28 04:54:18,517 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:54:18,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2024-11-28 04:54:18,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:54:18,518 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2024-11-28 04:54:18,519 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=690, Invalid=4711, Unknown=1, NotChecked=0, Total=5402 [2024-11-28 04:54:18,519 INFO L87 Difference]: Start difference. First operand 2382 states and 3157 transitions. Second operand has 61 states, 49 states have (on average 3.2653061224489797) internal successors, (160), 55 states have internal predecessors, (160), 22 states have call successors, (32), 16 states have call predecessors, (32), 22 states have return successors, (32), 14 states have call predecessors, (32), 22 states have call successors, (32) [2024-11-28 04:54:37,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.58s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:54:41,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:54:51,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:54:55,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:55:03,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:55:06,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.15s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:55:10,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:55:11,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:55:11,074 INFO L93 Difference]: Finished difference Result 5336 states and 6723 transitions. [2024-11-28 04:55:11,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-11-28 04:55:11,075 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 49 states have (on average 3.2653061224489797) internal successors, (160), 55 states have internal predecessors, (160), 22 states have call successors, (32), 16 states have call predecessors, (32), 22 states have return successors, (32), 14 states have call predecessors, (32), 22 states have call successors, (32) Word has length 137 [2024-11-28 04:55:11,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:55:11,085 INFO L225 Difference]: With dead ends: 5336 [2024-11-28 04:55:11,085 INFO L226 Difference]: Without dead ends: 3029 [2024-11-28 04:55:11,091 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 272 SyntacticMatches, 4 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4801 ImplicationChecksByTransitivity, 44.4s TimeCoverageRelationStatistics Valid=2216, Invalid=13034, Unknown=2, NotChecked=0, Total=15252 [2024-11-28 04:55:11,092 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 1098 mSDsluCounter, 1859 mSDsCounter, 0 mSdLazyCounter, 2288 mSolverCounterSat, 162 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1099 SdHoareTripleChecker+Valid, 1938 SdHoareTripleChecker+Invalid, 2455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 2288 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:55:11,092 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1099 Valid, 1938 Invalid, 2455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 2288 Invalid, 5 Unknown, 0 Unchecked, 34.6s Time] [2024-11-28 04:55:11,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3029 states. [2024-11-28 04:55:11,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3029 to 1169. [2024-11-28 04:55:11,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1169 states, 1002 states have (on average 1.1946107784431137) internal successors, (1197), 1018 states have internal predecessors, (1197), 99 states have call successors, (99), 67 states have call predecessors, (99), 67 states have return successors, (99), 83 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-28 04:55:11,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1169 states to 1169 states and 1395 transitions. [2024-11-28 04:55:11,333 INFO L78 Accepts]: Start accepts. Automaton has 1169 states and 1395 transitions. Word has length 137 [2024-11-28 04:55:11,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:55:11,333 INFO L471 AbstractCegarLoop]: Abstraction has 1169 states and 1395 transitions. [2024-11-28 04:55:11,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 49 states have (on average 3.2653061224489797) internal successors, (160), 55 states have internal predecessors, (160), 22 states have call successors, (32), 16 states have call predecessors, (32), 22 states have return successors, (32), 14 states have call predecessors, (32), 22 states have call successors, (32) [2024-11-28 04:55:11,334 INFO L276 IsEmpty]: Start isEmpty. Operand 1169 states and 1395 transitions. [2024-11-28 04:55:11,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-28 04:55:11,335 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:55:11,335 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:55:11,345 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 (29)] Ended with exit code 0 [2024-11-28 04:55:11,546 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (30)] Ended with exit code 0 [2024-11-28 04:55:11,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 04:55:11,736 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:55:11,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:55:11,737 INFO L85 PathProgramCache]: Analyzing trace with hash -566469170, now seen corresponding path program 1 times [2024-11-28 04:55:11,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:55:11,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1783842430] [2024-11-28 04:55:11,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:55:11,737 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 [2024-11-28 04:55:11,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:55:11,739 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 04:55:11,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 (31)] Waiting until timeout for monitored process [2024-11-28 04:55:12,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:55:12,305 INFO L256 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-28 04:55:12,310 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:55:12,317 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 15 treesize of output 1 [2024-11-28 04:55:12,397 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 15 treesize of output 1 [2024-11-28 04:55:12,766 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 33 treesize of output 28 [2024-11-28 04:55:13,087 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 31 [2024-11-28 04:55:13,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 45 [2024-11-28 04:55:15,795 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:55:15,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 59 [2024-11-28 04:55:15,835 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 27 treesize of output 11 [2024-11-28 04:55:15,965 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 27 treesize of output 11 [2024-11-28 04:55:16,330 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 11 [2024-11-28 04:55:16,337 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 15 treesize of output 7 [2024-11-28 04:55:16,345 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:55:16,346 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 79 treesize of output 37 [2024-11-28 04:55:16,513 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 364 proven. 78 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-28 04:55:16,513 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:55:19,815 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 54 treesize of output 46 [2024-11-28 04:55:20,553 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:55:20,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1783842430] [2024-11-28 04:55:20,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1783842430] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:55:20,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [36275680] [2024-11-28 04:55:20,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:55:20,553 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:55:20,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:55:20,555 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:55:20,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2024-11-28 04:55:21,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:55:21,971 INFO L256 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-28 04:55:21,976 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:55:22,315 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 15 treesize of output 1 [2024-11-28 04:55:22,929 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 15 treesize of output 1 [2024-11-28 04:55:23,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-28 04:55:23,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2024-11-28 04:55:25,311 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 29 [2024-11-28 04:55:28,927 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:55:28,928 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 45 [2024-11-28 04:55:28,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-28 04:55:29,134 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-28 04:55:29,585 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 11 [2024-11-28 04:55:29,595 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:55:29,595 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 68 treesize of output 36 [2024-11-28 04:55:29,614 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 15 treesize of output 7 [2024-11-28 04:55:29,937 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 370 proven. 66 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-28 04:55:29,937 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:55:30,606 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 54 treesize of output 46 [2024-11-28 04:55:31,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [36275680] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:55:31,352 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:55:31,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 24] total 51 [2024-11-28 04:55:31,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285528521] [2024-11-28 04:55:31,352 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:55:31,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-11-28 04:55:31,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:55:31,353 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-11-28 04:55:31,353 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=467, Invalid=2839, Unknown=0, NotChecked=0, Total=3306 [2024-11-28 04:55:31,354 INFO L87 Difference]: Start difference. First operand 1169 states and 1395 transitions. Second operand has 51 states, 40 states have (on average 4.175) internal successors, (167), 48 states have internal predecessors, (167), 21 states have call successors, (32), 12 states have call predecessors, (32), 21 states have return successors, (32), 14 states have call predecessors, (32), 21 states have call successors, (32) [2024-11-28 04:55:39,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:55:39,512 INFO L93 Difference]: Finished difference Result 2222 states and 2623 transitions. [2024-11-28 04:55:39,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-28 04:55:39,513 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 40 states have (on average 4.175) internal successors, (167), 48 states have internal predecessors, (167), 21 states have call successors, (32), 12 states have call predecessors, (32), 21 states have return successors, (32), 14 states have call predecessors, (32), 21 states have call successors, (32) Word has length 137 [2024-11-28 04:55:39,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:55:39,518 INFO L225 Difference]: With dead ends: 2222 [2024-11-28 04:55:39,518 INFO L226 Difference]: Without dead ends: 1135 [2024-11-28 04:55:39,521 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 298 SyntacticMatches, 2 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2290 ImplicationChecksByTransitivity, 14.7s TimeCoverageRelationStatistics Valid=1154, Invalid=6502, Unknown=0, NotChecked=0, Total=7656 [2024-11-28 04:55:39,521 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 232 mSDsluCounter, 1101 mSDsCounter, 0 mSdLazyCounter, 1358 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 1175 SdHoareTripleChecker+Invalid, 1417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:55:39,521 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 1175 Invalid, 1417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1358 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-28 04:55:39,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1135 states. [2024-11-28 04:55:39,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1135 to 1125. [2024-11-28 04:55:39,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1125 states, 958 states have (on average 1.1659707724425887) internal successors, (1117), 974 states have internal predecessors, (1117), 99 states have call successors, (99), 67 states have call predecessors, (99), 67 states have return successors, (99), 83 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-28 04:55:39,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1125 states to 1125 states and 1315 transitions. [2024-11-28 04:55:39,898 INFO L78 Accepts]: Start accepts. Automaton has 1125 states and 1315 transitions. Word has length 137 [2024-11-28 04:55:39,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:55:39,899 INFO L471 AbstractCegarLoop]: Abstraction has 1125 states and 1315 transitions. [2024-11-28 04:55:39,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 40 states have (on average 4.175) internal successors, (167), 48 states have internal predecessors, (167), 21 states have call successors, (32), 12 states have call predecessors, (32), 21 states have return successors, (32), 14 states have call predecessors, (32), 21 states have call successors, (32) [2024-11-28 04:55:39,899 INFO L276 IsEmpty]: Start isEmpty. Operand 1125 states and 1315 transitions. [2024-11-28 04:55:39,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-28 04:55:39,901 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:55:39,901 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:55:39,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (32)] Ended with exit code 0 [2024-11-28 04:55:40,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 (31)] Forceful destruction successful, exit code 0 [2024-11-28 04:55:40,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:55:40,302 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:55:40,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:55:40,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1102395539, now seen corresponding path program 1 times [2024-11-28 04:55:40,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:55:40,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [772990219] [2024-11-28 04:55:40,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:55:40,303 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 [2024-11-28 04:55:40,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:55:40,307 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 04:55:40,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 (33)] Waiting until timeout for monitored process [2024-11-28 04:55:40,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:55:40,891 INFO L256 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 04:55:40,894 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:55:40,899 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 14 treesize of output 10 [2024-11-28 04:55:40,965 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 30 treesize of output 14 [2024-11-28 04:55:41,112 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 30 treesize of output 14 [2024-11-28 04:55:41,131 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 21 treesize of output 17 [2024-11-28 04:55:41,173 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 39 treesize of output 38 [2024-11-28 04:55:41,407 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2024-11-28 04:55:41,407 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:55:41,407 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:55:41,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [772990219] [2024-11-28 04:55:41,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [772990219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:55:41,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:55:41,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 04:55:41,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243203016] [2024-11-28 04:55:41,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:55:41,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:55:41,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:55:41,408 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:55:41,408 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:55:41,408 INFO L87 Difference]: Start difference. First operand 1125 states and 1315 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 04:55:43,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:55:43,929 INFO L93 Difference]: Finished difference Result 3038 states and 3519 transitions. [2024-11-28 04:55:43,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:55:43,930 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 137 [2024-11-28 04:55:43,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:55:43,936 INFO L225 Difference]: With dead ends: 3038 [2024-11-28 04:55:43,936 INFO L226 Difference]: Without dead ends: 1995 [2024-11-28 04:55:43,938 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:55:43,938 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 248 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:55:43,938 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 902 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 04:55:43,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1995 states. [2024-11-28 04:55:44,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1995 to 1125. [2024-11-28 04:55:44,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1125 states, 958 states have (on average 1.1659707724425887) internal successors, (1117), 974 states have internal predecessors, (1117), 99 states have call successors, (99), 67 states have call predecessors, (99), 67 states have return successors, (99), 83 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-28 04:55:44,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1125 states to 1125 states and 1315 transitions. [2024-11-28 04:55:44,247 INFO L78 Accepts]: Start accepts. Automaton has 1125 states and 1315 transitions. Word has length 137 [2024-11-28 04:55:44,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:55:44,248 INFO L471 AbstractCegarLoop]: Abstraction has 1125 states and 1315 transitions. [2024-11-28 04:55:44,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 04:55:44,248 INFO L276 IsEmpty]: Start isEmpty. Operand 1125 states and 1315 transitions. [2024-11-28 04:55:44,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-28 04:55:44,250 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:55:44,250 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:55:44,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 (33)] Ended with exit code 0 [2024-11-28 04:55:44,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:55:44,451 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:55:44,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:55:44,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1782453909, now seen corresponding path program 1 times [2024-11-28 04:55:44,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:55:44,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [920946172] [2024-11-28 04:55:44,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:55:44,453 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 [2024-11-28 04:55:44,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:55:44,455 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 04:55:44,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 (34)] Waiting until timeout for monitored process [2024-11-28 04:55:59,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:55:59,468 INFO L256 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-28 04:55:59,471 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:16,232 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:56:16,232 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 264 treesize of output 96 [2024-11-28 04:56:18,297 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 125 proven. 39 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-28 04:56:18,297 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:56:36,668 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:56:36,668 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:56:36,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [920946172] [2024-11-28 04:56:36,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [920946172] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:56:36,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:56:36,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [16] total 23 [2024-11-28 04:56:36,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416627209] [2024-11-28 04:56:36,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:56:36,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:56:36,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:56:36,669 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:56:36,669 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=419, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:56:36,669 INFO L87 Difference]: Start difference. First operand 1125 states and 1315 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:57:03,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:57:03,503 INFO L93 Difference]: Finished difference Result 2468 states and 2880 transitions. [2024-11-28 04:57:03,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:57:03,508 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 137 [2024-11-28 04:57:03,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:57:03,511 INFO L225 Difference]: With dead ends: 2468 [2024-11-28 04:57:03,511 INFO L226 Difference]: Without dead ends: 1425 [2024-11-28 04:57:03,513 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 36.2s TimeCoverageRelationStatistics Valid=124, Invalid=578, Unknown=0, NotChecked=0, Total=702 [2024-11-28 04:57:03,513 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 56 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 800 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:57:03,513 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 800 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 16.6s Time] [2024-11-28 04:57:03,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1425 states. [2024-11-28 04:57:03,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1425 to 1215. [2024-11-28 04:57:03,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1215 states, 1048 states have (on average 1.1669847328244274) internal successors, (1223), 1064 states have internal predecessors, (1223), 99 states have call successors, (99), 67 states have call predecessors, (99), 67 states have return successors, (99), 83 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-28 04:57:03,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1215 states to 1215 states and 1421 transitions. [2024-11-28 04:57:03,766 INFO L78 Accepts]: Start accepts. Automaton has 1215 states and 1421 transitions. Word has length 137 [2024-11-28 04:57:03,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:57:03,766 INFO L471 AbstractCegarLoop]: Abstraction has 1215 states and 1421 transitions. [2024-11-28 04:57:03,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:57:03,766 INFO L276 IsEmpty]: Start isEmpty. Operand 1215 states and 1421 transitions. [2024-11-28 04:57:03,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-28 04:57:03,767 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:57:03,767 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:57:03,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 (34)] Ended with exit code 0 [2024-11-28 04:57:03,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:57:03,968 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:57:03,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:57:03,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1811448809, now seen corresponding path program 1 times [2024-11-28 04:57:03,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:57:03,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1131863476] [2024-11-28 04:57:03,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:57:03,969 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 [2024-11-28 04:57:03,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:57:03,970 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 04:57:03,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 (35)] Waiting until timeout for monitored process [2024-11-28 04:57:04,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:57:04,703 INFO L256 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:57:04,706 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:57:11,726 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:57:11,727 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 169 treesize of output 61 [2024-11-28 04:57:13,292 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 125 proven. 39 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-28 04:57:13,292 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:57:22,462 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:57:22,462 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:57:22,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1131863476] [2024-11-28 04:57:22,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1131863476] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:57:22,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:57:22,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 16 [2024-11-28 04:57:22,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862085689] [2024-11-28 04:57:22,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:57:22,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:57:22,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:57:22,464 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:57:22,464 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:57:22,464 INFO L87 Difference]: Start difference. First operand 1215 states and 1421 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:57:39,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:57:39,369 INFO L93 Difference]: Finished difference Result 2562 states and 2983 transitions. [2024-11-28 04:57:39,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:57:39,375 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 137 [2024-11-28 04:57:39,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:57:39,378 INFO L225 Difference]: With dead ends: 2562 [2024-11-28 04:57:39,379 INFO L226 Difference]: Without dead ends: 1429 [2024-11-28 04:57:39,380 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:57:39,380 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 39 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:57:39,380 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 478 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 15.3s Time] [2024-11-28 04:57:39,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1429 states. [2024-11-28 04:57:39,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1429 to 1209. [2024-11-28 04:57:39,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1209 states, 1038 states have (on average 1.1618497109826589) internal successors, (1206), 1056 states have internal predecessors, (1206), 101 states have call successors, (101), 69 states have call predecessors, (101), 69 states have return successors, (101), 83 states have call predecessors, (101), 101 states have call successors, (101) [2024-11-28 04:57:39,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 1408 transitions. [2024-11-28 04:57:39,759 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 1408 transitions. Word has length 137 [2024-11-28 04:57:39,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:57:39,760 INFO L471 AbstractCegarLoop]: Abstraction has 1209 states and 1408 transitions. [2024-11-28 04:57:39,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:57:39,760 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 1408 transitions. [2024-11-28 04:57:39,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-28 04:57:39,761 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:57:39,761 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:57:39,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 (35)] Ended with exit code 0 [2024-11-28 04:57:39,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:57:39,962 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:57:39,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:57:39,962 INFO L85 PathProgramCache]: Analyzing trace with hash -586548203, now seen corresponding path program 1 times [2024-11-28 04:57:39,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:57:39,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2075284045] [2024-11-28 04:57:39,962 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:57:39,963 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 [2024-11-28 04:57:39,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:57:39,964 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 04:57:39,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 (36)] Waiting until timeout for monitored process [2024-11-28 04:57:49,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:57:49,726 INFO L256 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-28 04:57:49,729 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:58:06,196 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:58:06,196 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 265 treesize of output 97 [2024-11-28 04:58:08,196 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 125 proven. 39 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-28 04:58:08,196 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:58:26,611 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:58:26,612 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:58:26,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2075284045] [2024-11-28 04:58:26,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2075284045] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:58:26,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:58:26,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [16] total 23 [2024-11-28 04:58:26,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728707703] [2024-11-28 04:58:26,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:58:26,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:58:26,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:58:26,613 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:58:26,613 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=419, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:58:26,613 INFO L87 Difference]: Start difference. First operand 1209 states and 1408 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:58:54,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:58:54,394 INFO L93 Difference]: Finished difference Result 2545 states and 2950 transitions. [2024-11-28 04:58:54,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:58:54,398 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 137 [2024-11-28 04:58:54,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:58:54,402 INFO L225 Difference]: With dead ends: 2545 [2024-11-28 04:58:54,402 INFO L226 Difference]: Without dead ends: 1418 [2024-11-28 04:58:54,404 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 38.0s TimeCoverageRelationStatistics Valid=124, Invalid=578, Unknown=0, NotChecked=0, Total=702 [2024-11-28 04:58:54,405 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 53 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:58:54,405 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 790 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 16.4s Time] [2024-11-28 04:58:54,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1418 states. [2024-11-28 04:58:54,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1418 to 1213. [2024-11-28 04:58:54,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1213 states, 1042 states have (on average 1.1573896353166986) internal successors, (1206), 1060 states have internal predecessors, (1206), 101 states have call successors, (101), 69 states have call predecessors, (101), 69 states have return successors, (101), 83 states have call predecessors, (101), 101 states have call successors, (101) [2024-11-28 04:58:54,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1213 states to 1213 states and 1408 transitions. [2024-11-28 04:58:54,763 INFO L78 Accepts]: Start accepts. Automaton has 1213 states and 1408 transitions. Word has length 137 [2024-11-28 04:58:54,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:58:54,763 INFO L471 AbstractCegarLoop]: Abstraction has 1213 states and 1408 transitions. [2024-11-28 04:58:54,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:58:54,763 INFO L276 IsEmpty]: Start isEmpty. Operand 1213 states and 1408 transitions. [2024-11-28 04:58:54,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-28 04:58:54,765 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:58:54,765 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:58:54,780 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 (36)] Ended with exit code 0 [2024-11-28 04:58:54,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:58:54,966 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:58:54,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:58:54,967 INFO L85 PathProgramCache]: Analyzing trace with hash -2089811561, now seen corresponding path program 1 times [2024-11-28 04:58:54,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:58:54,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [137612907] [2024-11-28 04:58:54,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:58:54,968 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 [2024-11-28 04:58:54,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:58:54,970 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 04:58:54,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 (37)] Waiting until timeout for monitored process [2024-11-28 04:58:55,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:58:55,621 INFO L256 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:58:55,623 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:59:04,367 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:59:04,368 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 170 treesize of output 62 [2024-11-28 04:59:06,584 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 125 proven. 39 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-28 04:59:06,584 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:59:17,272 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:59:17,272 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:59:17,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [137612907] [2024-11-28 04:59:17,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [137612907] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:59:17,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:59:17,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 16 [2024-11-28 04:59:17,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268577813] [2024-11-28 04:59:17,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:17,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:59:17,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:59:17,274 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:59:17,274 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:59:17,274 INFO L87 Difference]: Start difference. First operand 1213 states and 1408 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:59:19,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 04:59:36,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:36,935 INFO L93 Difference]: Finished difference Result 2424 states and 2797 transitions. [2024-11-28 04:59:36,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:59:36,941 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 137 [2024-11-28 04:59:36,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:36,945 INFO L225 Difference]: With dead ends: 2424 [2024-11-28 04:59:36,945 INFO L226 Difference]: Without dead ends: 1293 [2024-11-28 04:59:36,947 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 14.0s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:59:36,947 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 41 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:36,948 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 462 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 17.2s Time] [2024-11-28 04:59:36,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1293 states. [2024-11-28 04:59:37,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1293 to 1077. [2024-11-28 04:59:37,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1077 states, 907 states have (on average 1.137816979051819) internal successors, (1032), 924 states have internal predecessors, (1032), 99 states have call successors, (99), 70 states have call predecessors, (99), 70 states have return successors, (99), 82 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-28 04:59:37,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1077 states to 1077 states and 1230 transitions. [2024-11-28 04:59:37,240 INFO L78 Accepts]: Start accepts. Automaton has 1077 states and 1230 transitions. Word has length 137 [2024-11-28 04:59:37,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:37,241 INFO L471 AbstractCegarLoop]: Abstraction has 1077 states and 1230 transitions. [2024-11-28 04:59:37,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:59:37,241 INFO L276 IsEmpty]: Start isEmpty. Operand 1077 states and 1230 transitions. [2024-11-28 04:59:37,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-28 04:59:37,242 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:37,242 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:59:37,250 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 (37)] Ended with exit code 0 [2024-11-28 04:59:37,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:59:37,442 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:59:37,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:37,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1388746983, now seen corresponding path program 1 times [2024-11-28 04:59:37,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:59:37,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [145695305] [2024-11-28 04:59:37,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:37,443 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 [2024-11-28 04:59:37,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:59:37,446 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 04:59:37,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d25b8db2-8d11-411a-8d46-54693b03a7f2/bin/uautomizer-verify-aQ6SnzHsRB/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 (38)] Waiting until timeout for monitored process [2024-11-28 05:00:19,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:20,327 INFO L256 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-28 05:00:20,329 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:00:38,106 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 05:00:38,107 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 263 treesize of output 95 [2024-11-28 05:00:40,459 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 125 proven. 39 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-28 05:00:40,459 INFO L312 TraceCheckSpWp]: Computing backward predicates...