./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-28.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_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-28.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e1d78d248c74132bd311292745f8a4e0496a51de00b4b221480ef3ff016a6c65 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:10:39,948 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:10:40,017 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 08:10:40,023 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:10:40,023 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:10:40,049 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:10:40,050 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:10:40,050 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:10:40,051 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:10:40,051 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:10:40,051 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:10:40,051 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:10:40,051 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:10:40,051 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:10:40,052 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:10:40,052 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:10:40,052 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:10:40,052 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 08:10:40,052 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:10:40,052 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 08:10:40,052 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:10:40,052 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:10:40,052 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:10:40,053 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:10:40,053 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 08:10:40,053 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:10:40,053 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:10:40,053 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:10:40,053 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:10:40,053 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:10:40,053 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:10:40,053 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:10:40,054 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:10:40,054 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:10:40,054 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:10:40,054 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:10:40,054 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:10:40,054 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:10:40,054 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:10:40,054 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:10:40,054 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:10:40,055 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:10:40,055 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 08:10:40,055 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 08:10:40,055 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:10:40,055 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:10:40,055 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:10:40,055 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:10:40,055 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_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1d78d248c74132bd311292745f8a4e0496a51de00b4b221480ef3ff016a6c65 [2024-12-02 08:10:40,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:10:40,352 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:10:40,355 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:10:40,356 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:10:40,357 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:10:40,358 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-28.i [2024-12-02 08:10:43,331 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/data/b586346e0/74f3164042154213a9a90ccb2c1b407e/FLAG131f00405 [2024-12-02 08:10:43,547 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:10:43,547 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-28.i [2024-12-02 08:10:43,556 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/data/b586346e0/74f3164042154213a9a90ccb2c1b407e/FLAG131f00405 [2024-12-02 08:10:43,570 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/data/b586346e0/74f3164042154213a9a90ccb2c1b407e [2024-12-02 08:10:43,573 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:10:43,574 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:10:43,575 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:10:43,576 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:10:43,579 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:10:43,580 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:10:43" (1/1) ... [2024-12-02 08:10:43,581 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7baad761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:43, skipping insertion in model container [2024-12-02 08:10:43,581 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:10:43" (1/1) ... [2024-12-02 08:10:43,599 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:10:43,718 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_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-28.i[916,929] [2024-12-02 08:10:43,781 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:10:43,791 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:10:43,801 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_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-28.i[916,929] [2024-12-02 08:10:43,840 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:10:43,860 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:10:43,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:43 WrapperNode [2024-12-02 08:10:43,861 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:10:43,862 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:10:43,862 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:10:43,862 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:10:43,868 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:43" (1/1) ... [2024-12-02 08:10:43,882 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:43" (1/1) ... [2024-12-02 08:10:43,921 INFO L138 Inliner]: procedures = 30, calls = 178, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 574 [2024-12-02 08:10:43,922 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:10:43,923 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:10:43,923 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:10:43,923 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:10:43,931 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:43" (1/1) ... [2024-12-02 08:10:43,931 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:43" (1/1) ... [2024-12-02 08:10:43,938 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:43" (1/1) ... [2024-12-02 08:10:43,945 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-12-02 08:10:43,946 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:43" (1/1) ... [2024-12-02 08:10:43,946 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:43" (1/1) ... [2024-12-02 08:10:43,971 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:43" (1/1) ... [2024-12-02 08:10:43,973 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:43" (1/1) ... [2024-12-02 08:10:43,978 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:43" (1/1) ... [2024-12-02 08:10:43,981 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:43" (1/1) ... [2024-12-02 08:10:43,983 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:43" (1/1) ... [2024-12-02 08:10:43,988 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:10:43,989 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:10:43,989 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:10:43,989 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:10:43,990 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:43" (1/1) ... [2024-12-02 08:10:43,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:10:44,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:10:44,021 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:10:44,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:10:44,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:10:44,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-12-02 08:10:44,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-12-02 08:10:44,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-02 08:10:44,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-12-02 08:10:44,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-12-02 08:10:44,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-02 08:10:44,046 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 08:10:44,047 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 08:10:44,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-02 08:10:44,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:10:44,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:10:44,158 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:10:44,161 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:10:44,879 INFO L? ?]: Removed 172 outVars from TransFormulas that were not future-live. [2024-12-02 08:10:44,879 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:10:44,892 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:10:44,892 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 08:10:44,893 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:10:44 BoogieIcfgContainer [2024-12-02 08:10:44,893 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:10:44,897 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:10:44,897 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:10:44,903 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:10:44,903 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:10:43" (1/3) ... [2024-12-02 08:10:44,904 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dc03c62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:10:44, skipping insertion in model container [2024-12-02 08:10:44,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:43" (2/3) ... [2024-12-02 08:10:44,904 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dc03c62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:10:44, skipping insertion in model container [2024-12-02 08:10:44,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:10:44" (3/3) ... [2024-12-02 08:10:44,905 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-28.i [2024-12-02 08:10:44,919 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:10:44,920 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-28.i that has 2 procedures, 123 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 08:10:44,984 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:10:44,997 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;@5ec06305, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:10:44,998 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 08:10:45,001 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 106 states have (on average 1.4339622641509433) internal successors, (152), 107 states have internal predecessors, (152), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 08:10:45,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-12-02 08:10:45,012 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:10:45,013 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:10:45,013 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:10:45,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:10:45,018 INFO L85 PathProgramCache]: Analyzing trace with hash 771826097, now seen corresponding path program 1 times [2024-12-02 08:10:45,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:10:45,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127722637] [2024-12-02 08:10:45,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:10:45,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:10:45,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:10:45,403 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-12-02 08:10:45,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:10:45,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127722637] [2024-12-02 08:10:45,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127722637] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:10:45,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871727576] [2024-12-02 08:10:45,404 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:10:45,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:10:45,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:10:45,406 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:10:45,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 08:10:45,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:10:45,721 INFO L256 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 08:10:45,747 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:10:45,771 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-12-02 08:10:45,772 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:10:45,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1871727576] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:10:45,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:10:45,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 08:10:45,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746033826] [2024-12-02 08:10:45,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:10:45,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 08:10:45,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:10:45,803 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 08:10:45,804 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:10:45,806 INFO L87 Difference]: Start difference. First operand has 123 states, 106 states have (on average 1.4339622641509433) internal successors, (152), 107 states have internal predecessors, (152), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 08:10:45,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:10:45,842 INFO L93 Difference]: Finished difference Result 239 states and 368 transitions. [2024-12-02 08:10:45,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 08:10:45,845 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 130 [2024-12-02 08:10:45,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:10:45,853 INFO L225 Difference]: With dead ends: 239 [2024-12-02 08:10:45,853 INFO L226 Difference]: Without dead ends: 119 [2024-12-02 08:10:45,857 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:10:45,860 INFO L435 NwaCegarLoop]: 171 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, 171 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:10:45,861 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:10:45,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-12-02 08:10:45,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2024-12-02 08:10:45,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 103 states have (on average 1.3883495145631068) internal successors, (143), 103 states have internal predecessors, (143), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 08:10:45,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 171 transitions. [2024-12-02 08:10:45,900 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 171 transitions. Word has length 130 [2024-12-02 08:10:45,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:10:45,900 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 171 transitions. [2024-12-02 08:10:45,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 08:10:45,901 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 171 transitions. [2024-12-02 08:10:45,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-12-02 08:10:45,904 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:10:45,904 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:10:45,913 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 08:10:46,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 08:10:46,105 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:10:46,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:10:46,106 INFO L85 PathProgramCache]: Analyzing trace with hash 158855109, now seen corresponding path program 1 times [2024-12-02 08:10:46,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:10:46,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273927486] [2024-12-02 08:10:46,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:10:46,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:10:46,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:10:46,489 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 08:10:46,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:10:46,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273927486] [2024-12-02 08:10:46,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273927486] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:10:46,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:10:46,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:10:46,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480812909] [2024-12-02 08:10:46,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:10:46,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:10:46,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:10:46,492 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:10:46,492 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:10:46,492 INFO L87 Difference]: Start difference. First operand 119 states and 171 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:10:46,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:10:46,551 INFO L93 Difference]: Finished difference Result 238 states and 343 transitions. [2024-12-02 08:10:46,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:10:46,552 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 130 [2024-12-02 08:10:46,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:10:46,555 INFO L225 Difference]: With dead ends: 238 [2024-12-02 08:10:46,555 INFO L226 Difference]: Without dead ends: 122 [2024-12-02 08:10:46,555 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:10:46,556 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 1 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:10:46,557 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 493 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:10:46,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-12-02 08:10:46,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 121. [2024-12-02 08:10:46,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 105 states have (on average 1.380952380952381) internal successors, (145), 105 states have internal predecessors, (145), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 08:10:46,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 173 transitions. [2024-12-02 08:10:46,586 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 173 transitions. Word has length 130 [2024-12-02 08:10:46,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:10:46,588 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 173 transitions. [2024-12-02 08:10:46,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:10:46,589 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 173 transitions. [2024-12-02 08:10:46,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-12-02 08:10:46,591 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:10:46,591 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:10:46,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 08:10:46,592 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:10:46,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:10:46,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1933862471, now seen corresponding path program 1 times [2024-12-02 08:10:46,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:10:46,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725831569] [2024-12-02 08:10:46,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:10:46,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:10:46,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:10:46,804 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 08:10:46,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:10:46,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725831569] [2024-12-02 08:10:46,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725831569] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:10:46,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:10:46,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:10:46,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397103013] [2024-12-02 08:10:46,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:10:46,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:10:46,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:10:46,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:10:46,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:10:46,807 INFO L87 Difference]: Start difference. First operand 121 states and 173 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:10:46,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:10:46,848 INFO L93 Difference]: Finished difference Result 242 states and 347 transitions. [2024-12-02 08:10:46,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:10:46,849 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 130 [2024-12-02 08:10:46,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:10:46,851 INFO L225 Difference]: With dead ends: 242 [2024-12-02 08:10:46,851 INFO L226 Difference]: Without dead ends: 124 [2024-12-02 08:10:46,852 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:10:46,853 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 1 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:10:46,853 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 496 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:10:46,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-12-02 08:10:46,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 123. [2024-12-02 08:10:46,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 107 states have (on average 1.3738317757009346) internal successors, (147), 107 states have internal predecessors, (147), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 08:10:46,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 175 transitions. [2024-12-02 08:10:46,864 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 175 transitions. Word has length 130 [2024-12-02 08:10:46,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:10:46,865 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 175 transitions. [2024-12-02 08:10:46,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:10:46,865 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 175 transitions. [2024-12-02 08:10:46,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-12-02 08:10:46,868 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:10:46,868 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:10:46,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 08:10:46,868 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:10:46,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:10:46,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1935709513, now seen corresponding path program 1 times [2024-12-02 08:10:46,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:10:46,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496150998] [2024-12-02 08:10:46,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:10:46,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:10:46,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:10:47,616 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 08:10:47,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:10:47,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496150998] [2024-12-02 08:10:47,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496150998] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:10:47,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:10:47,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:10:47,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878532574] [2024-12-02 08:10:47,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:10:47,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:10:47,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:10:47,619 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:10:47,619 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:10:47,619 INFO L87 Difference]: Start difference. First operand 123 states and 175 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:10:48,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:10:48,025 INFO L93 Difference]: Finished difference Result 321 states and 455 transitions. [2024-12-02 08:10:48,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:10:48,026 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 130 [2024-12-02 08:10:48,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:10:48,028 INFO L225 Difference]: With dead ends: 321 [2024-12-02 08:10:48,028 INFO L226 Difference]: Without dead ends: 201 [2024-12-02 08:10:48,029 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:10:48,030 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 91 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:10:48,030 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 631 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:10:48,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2024-12-02 08:10:48,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 198. [2024-12-02 08:10:48,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 179 states have (on average 1.3854748603351956) internal successors, (248), 180 states have internal predecessors, (248), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 08:10:48,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 280 transitions. [2024-12-02 08:10:48,049 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 280 transitions. Word has length 130 [2024-12-02 08:10:48,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:10:48,049 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 280 transitions. [2024-12-02 08:10:48,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:10:48,050 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 280 transitions. [2024-12-02 08:10:48,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 08:10:48,052 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:10:48,052 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:10:48,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 08:10:48,052 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:10:48,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:10:48,053 INFO L85 PathProgramCache]: Analyzing trace with hash -374592594, now seen corresponding path program 1 times [2024-12-02 08:10:48,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:10:48,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203019928] [2024-12-02 08:10:48,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:10:48,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:10:48,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:10:50,009 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 08:10:50,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:10:50,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203019928] [2024-12-02 08:10:50,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203019928] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:10:50,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:10:50,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:10:50,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468424627] [2024-12-02 08:10:50,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:10:50,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:10:50,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:10:50,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:10:50,011 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:10:50,011 INFO L87 Difference]: Start difference. First operand 198 states and 280 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:10:51,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:10:51,237 INFO L93 Difference]: Finished difference Result 631 states and 888 transitions. [2024-12-02 08:10:51,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:10:51,238 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 132 [2024-12-02 08:10:51,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:10:51,242 INFO L225 Difference]: With dead ends: 631 [2024-12-02 08:10:51,242 INFO L226 Difference]: Without dead ends: 436 [2024-12-02 08:10:51,243 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:10:51,244 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 255 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:10:51,244 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 699 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 08:10:51,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2024-12-02 08:10:51,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 372. [2024-12-02 08:10:51,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 345 states have (on average 1.3942028985507247) internal successors, (481), 348 states have internal predecessors, (481), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 19 states have call predecessors, (22), 22 states have call successors, (22) [2024-12-02 08:10:51,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 525 transitions. [2024-12-02 08:10:51,271 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 525 transitions. Word has length 132 [2024-12-02 08:10:51,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:10:51,271 INFO L471 AbstractCegarLoop]: Abstraction has 372 states and 525 transitions. [2024-12-02 08:10:51,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:10:51,272 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 525 transitions. [2024-12-02 08:10:51,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 08:10:51,274 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:10:51,274 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:10:51,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 08:10:51,275 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:10:51,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:10:51,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1192241044, now seen corresponding path program 1 times [2024-12-02 08:10:51,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:10:51,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770901781] [2024-12-02 08:10:51,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:10:51,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:10:51,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:10:52,092 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 08:10:52,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:10:52,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770901781] [2024-12-02 08:10:52,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770901781] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:10:52,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:10:52,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:10:52,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352894323] [2024-12-02 08:10:52,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:10:52,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:10:52,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:10:52,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:10:52,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:10:52,095 INFO L87 Difference]: Start difference. First operand 372 states and 525 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:10:52,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:10:52,504 INFO L93 Difference]: Finished difference Result 767 states and 1081 transitions. [2024-12-02 08:10:52,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:10:52,505 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 132 [2024-12-02 08:10:52,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:10:52,509 INFO L225 Difference]: With dead ends: 767 [2024-12-02 08:10:52,509 INFO L226 Difference]: Without dead ends: 398 [2024-12-02 08:10:52,510 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:10:52,510 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 107 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:10:52,511 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 507 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:10:52,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2024-12-02 08:10:52,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 372. [2024-12-02 08:10:52,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 345 states have (on average 1.3855072463768117) internal successors, (478), 348 states have internal predecessors, (478), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 19 states have call predecessors, (22), 22 states have call successors, (22) [2024-12-02 08:10:52,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 522 transitions. [2024-12-02 08:10:52,529 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 522 transitions. Word has length 132 [2024-12-02 08:10:52,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:10:52,529 INFO L471 AbstractCegarLoop]: Abstraction has 372 states and 522 transitions. [2024-12-02 08:10:52,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:10:52,529 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 522 transitions. [2024-12-02 08:10:52,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 08:10:52,531 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:10:52,531 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:10:52,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 08:10:52,531 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:10:52,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:10:52,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1525223603, now seen corresponding path program 1 times [2024-12-02 08:10:52,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:10:52,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757155907] [2024-12-02 08:10:52,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:10:52,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:10:52,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:10:52,697 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 08:10:52,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:10:52,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757155907] [2024-12-02 08:10:52,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757155907] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:10:52,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:10:52,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:10:52,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928369378] [2024-12-02 08:10:52,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:10:52,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:10:52,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:10:52,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:10:52,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:10:52,699 INFO L87 Difference]: Start difference. First operand 372 states and 522 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:10:52,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:10:52,718 INFO L93 Difference]: Finished difference Result 741 states and 1041 transitions. [2024-12-02 08:10:52,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:10:52,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 134 [2024-12-02 08:10:52,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:10:52,721 INFO L225 Difference]: With dead ends: 741 [2024-12-02 08:10:52,721 INFO L226 Difference]: Without dead ends: 372 [2024-12-02 08:10:52,722 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:10:52,723 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 0 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:10:52,723 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 334 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:10:52,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2024-12-02 08:10:52,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2024-12-02 08:10:52,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 345 states have (on average 1.3710144927536232) internal successors, (473), 348 states have internal predecessors, (473), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 19 states have call predecessors, (22), 22 states have call successors, (22) [2024-12-02 08:10:52,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 517 transitions. [2024-12-02 08:10:52,742 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 517 transitions. Word has length 134 [2024-12-02 08:10:52,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:10:52,742 INFO L471 AbstractCegarLoop]: Abstraction has 372 states and 517 transitions. [2024-12-02 08:10:52,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:10:52,742 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 517 transitions. [2024-12-02 08:10:52,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 08:10:52,743 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:10:52,744 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:10:52,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 08:10:52,744 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:10:52,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:10:52,744 INFO L85 PathProgramCache]: Analyzing trace with hash -468921103, now seen corresponding path program 1 times [2024-12-02 08:10:52,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:10:52,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250101020] [2024-12-02 08:10:52,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:10:52,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:10:52,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:10:52,859 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:10:52,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:10:52,980 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 08:10:52,981 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 08:10:52,981 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 08:10:52,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 08:10:52,985 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:10:53,039 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 08:10:53,043 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:10:53 BoogieIcfgContainer [2024-12-02 08:10:53,043 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 08:10:53,043 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 08:10:53,043 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 08:10:53,044 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 08:10:53,044 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:10:44" (3/4) ... [2024-12-02 08:10:53,046 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 08:10:53,047 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 08:10:53,048 INFO L158 Benchmark]: Toolchain (without parser) took 9473.50ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 118.0MB in the beginning and 155.3MB in the end (delta: -37.3MB). Peak memory consumption was 246.8MB. Max. memory is 16.1GB. [2024-12-02 08:10:53,048 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:10:53,048 INFO L158 Benchmark]: CACSL2BoogieTranslator took 285.82ms. Allocated memory is still 142.6MB. Free memory was 118.0MB in the beginning and 100.6MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 08:10:53,049 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.46ms. Allocated memory is still 142.6MB. Free memory was 100.6MB in the beginning and 96.7MB in the end (delta: 3.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:10:53,049 INFO L158 Benchmark]: Boogie Preprocessor took 65.26ms. Allocated memory is still 142.6MB. Free memory was 96.7MB in the beginning and 92.9MB in the end (delta: 3.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 08:10:53,049 INFO L158 Benchmark]: RCFGBuilder took 904.24ms. Allocated memory is still 142.6MB. Free memory was 92.9MB in the beginning and 110.4MB in the end (delta: -17.5MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-12-02 08:10:53,049 INFO L158 Benchmark]: TraceAbstraction took 8146.16ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 109.8MB in the beginning and 155.3MB in the end (delta: -45.5MB). Peak memory consumption was 240.6MB. Max. memory is 16.1GB. [2024-12-02 08:10:53,050 INFO L158 Benchmark]: Witness Printer took 3.50ms. Allocated memory is still 427.8MB. Free memory was 155.3MB in the beginning and 155.3MB in the end (delta: 37.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:10:53,052 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 83.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 285.82ms. Allocated memory is still 142.6MB. Free memory was 118.0MB in the beginning and 100.6MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.46ms. Allocated memory is still 142.6MB. Free memory was 100.6MB in the beginning and 96.7MB in the end (delta: 3.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 65.26ms. Allocated memory is still 142.6MB. Free memory was 96.7MB in the beginning and 92.9MB in the end (delta: 3.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 904.24ms. Allocated memory is still 142.6MB. Free memory was 92.9MB in the beginning and 110.4MB in the end (delta: -17.5MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * TraceAbstraction took 8146.16ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 109.8MB in the beginning and 155.3MB in the end (delta: -45.5MB). Peak memory consumption was 240.6MB. Max. memory is 16.1GB. * Witness Printer took 3.50ms. Allocated memory is still 427.8MB. Free memory was 155.3MB in the beginning and 155.3MB in the end (delta: 37.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 62, overapproximation of someBinaryFLOATComparisonOperation at line 107, overapproximation of someBinaryFLOATComparisonOperation at line 96, overapproximation of someBinaryFLOATComparisonOperation at line 83, overapproximation of someBinaryFLOATComparisonOperation at line 94, overapproximation of someBinaryFLOATComparisonOperation at line 81, overapproximation of someBinaryFLOATComparisonOperation at line 81, overapproximation of someBinaryFLOATComparisonOperation at line 94, overapproximation of someBinaryFLOATComparisonOperation at line 83, overapproximation of someBinaryFLOATComparisonOperation at line 64, overapproximation of someBinaryFLOATComparisonOperation at line 67, overapproximation of someBinaryFLOATComparisonOperation at line 96. Possible FailurePath: [L39] unsigned char isInitial = 0; [L40-L56] struct WrapperStruct00 WrapperStruct00 = { 1, 63.75, 255.75, 10, 4, -10, 4.75, 99.5, 255.9, 24.85, -2, 1629954775, 1928642731, 0, 5 }; VAL [WrapperStruct00={4:0}, isInitial=0] [L111] isInitial = 1 [L112] FCALL initially() [L114] FCALL updateLastVariables() [L115] CALL updateVariables() [L80] WrapperStruct00.var_1_2 = __VERIFIER_nondet_float() [L81] EXPR WrapperStruct00.var_1_2 [L81] EXPR WrapperStruct00.var_1_2 >= 0.0F && WrapperStruct00.var_1_2 <= -1.0e-20F [L81] EXPR WrapperStruct00.var_1_2 [L81] EXPR WrapperStruct00.var_1_2 >= 0.0F && WrapperStruct00.var_1_2 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1] [L81] EXPR (WrapperStruct00.var_1_2 >= 0.0F && WrapperStruct00.var_1_2 <= -1.0e-20F) || (WrapperStruct00.var_1_2 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_2 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1] [L81] CALL assume_abort_if_not((WrapperStruct00.var_1_2 >= 0.0F && WrapperStruct00.var_1_2 <= -1.0e-20F) || (WrapperStruct00.var_1_2 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_2 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L81] RET assume_abort_if_not((WrapperStruct00.var_1_2 >= 0.0F && WrapperStruct00.var_1_2 <= -1.0e-20F) || (WrapperStruct00.var_1_2 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_2 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1] [L82] WrapperStruct00.var_1_3 = __VERIFIER_nondet_float() [L83] EXPR WrapperStruct00.var_1_3 [L83] EXPR WrapperStruct00.var_1_3 >= 0.0F && WrapperStruct00.var_1_3 <= -1.0e-20F [L83] EXPR WrapperStruct00.var_1_3 [L83] EXPR WrapperStruct00.var_1_3 >= 0.0F && WrapperStruct00.var_1_3 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1] [L83] EXPR (WrapperStruct00.var_1_3 >= 0.0F && WrapperStruct00.var_1_3 <= -1.0e-20F) || (WrapperStruct00.var_1_3 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_3 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1] [L83] CALL assume_abort_if_not((WrapperStruct00.var_1_3 >= 0.0F && WrapperStruct00.var_1_3 <= -1.0e-20F) || (WrapperStruct00.var_1_3 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_3 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L83] RET assume_abort_if_not((WrapperStruct00.var_1_3 >= 0.0F && WrapperStruct00.var_1_3 <= -1.0e-20F) || (WrapperStruct00.var_1_3 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_3 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1] [L84] WrapperStruct00.var_1_5 = __VERIFIER_nondet_char() [L85] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1] [L85] CALL assume_abort_if_not(WrapperStruct00.var_1_5 >= -1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L85] RET assume_abort_if_not(WrapperStruct00.var_1_5 >= -1) VAL [WrapperStruct00={4:0}, isInitial=1] [L86] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1] [L86] CALL assume_abort_if_not(WrapperStruct00.var_1_5 <= 126) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L86] RET assume_abort_if_not(WrapperStruct00.var_1_5 <= 126) VAL [WrapperStruct00={4:0}, isInitial=1] [L87] WrapperStruct00.var_1_6 = __VERIFIER_nondet_char() [L88] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1] [L88] CALL assume_abort_if_not(WrapperStruct00.var_1_6 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L88] RET assume_abort_if_not(WrapperStruct00.var_1_6 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L89] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1] [L89] CALL assume_abort_if_not(WrapperStruct00.var_1_6 <= 126) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L89] RET assume_abort_if_not(WrapperStruct00.var_1_6 <= 126) VAL [WrapperStruct00={4:0}, isInitial=1] [L90] WrapperStruct00.var_1_7 = __VERIFIER_nondet_char() [L91] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1] [L91] CALL assume_abort_if_not(WrapperStruct00.var_1_7 >= -127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L91] RET assume_abort_if_not(WrapperStruct00.var_1_7 >= -127) VAL [WrapperStruct00={4:0}, isInitial=1] [L92] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1] [L92] CALL assume_abort_if_not(WrapperStruct00.var_1_7 <= 126) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L92] RET assume_abort_if_not(WrapperStruct00.var_1_7 <= 126) VAL [WrapperStruct00={4:0}, isInitial=1] [L93] WrapperStruct00.var_1_9 = __VERIFIER_nondet_float() [L94] EXPR WrapperStruct00.var_1_9 [L94] EXPR WrapperStruct00.var_1_9 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_9 <= -1.0e-20F [L94] EXPR WrapperStruct00.var_1_9 [L94] EXPR WrapperStruct00.var_1_9 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_9 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1] [L94] EXPR (WrapperStruct00.var_1_9 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_9 <= -1.0e-20F) || (WrapperStruct00.var_1_9 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_9 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1] [L94] CALL assume_abort_if_not((WrapperStruct00.var_1_9 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_9 <= -1.0e-20F) || (WrapperStruct00.var_1_9 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_9 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L94] RET assume_abort_if_not((WrapperStruct00.var_1_9 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_9 <= -1.0e-20F) || (WrapperStruct00.var_1_9 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_9 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1] [L95] WrapperStruct00.var_1_10 = __VERIFIER_nondet_float() [L96] EXPR WrapperStruct00.var_1_10 [L96] EXPR WrapperStruct00.var_1_10 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_10 <= -1.0e-20F [L96] EXPR WrapperStruct00.var_1_10 [L96] EXPR WrapperStruct00.var_1_10 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_10 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1] [L96] EXPR (WrapperStruct00.var_1_10 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_10 <= -1.0e-20F) || (WrapperStruct00.var_1_10 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_10 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1] [L96] CALL assume_abort_if_not((WrapperStruct00.var_1_10 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_10 <= -1.0e-20F) || (WrapperStruct00.var_1_10 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_10 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L96] RET assume_abort_if_not((WrapperStruct00.var_1_10 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_10 <= -1.0e-20F) || (WrapperStruct00.var_1_10 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_10 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1] [L97] WrapperStruct00.var_1_13 = __VERIFIER_nondet_long() [L98] EXPR WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1] [L98] CALL assume_abort_if_not(WrapperStruct00.var_1_13 >= 1073741822) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L98] RET assume_abort_if_not(WrapperStruct00.var_1_13 >= 1073741822) VAL [WrapperStruct00={4:0}, isInitial=1] [L99] EXPR WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1] [L99] CALL assume_abort_if_not(WrapperStruct00.var_1_13 <= 2147483646) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L99] RET assume_abort_if_not(WrapperStruct00.var_1_13 <= 2147483646) VAL [WrapperStruct00={4:0}, isInitial=1] [L100] WrapperStruct00.var_1_15 = __VERIFIER_nondet_long() [L101] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1] [L101] CALL assume_abort_if_not(WrapperStruct00.var_1_15 >= 1073741823) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L101] RET assume_abort_if_not(WrapperStruct00.var_1_15 >= 1073741823) VAL [WrapperStruct00={4:0}, isInitial=1] [L102] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1] [L102] CALL assume_abort_if_not(WrapperStruct00.var_1_15 <= 2147483646) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L102] RET assume_abort_if_not(WrapperStruct00.var_1_15 <= 2147483646) VAL [WrapperStruct00={4:0}, isInitial=1] [L115] RET updateVariables() [L116] CALL step() [L60] signed long int stepLocal_0 = -4; [L61] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1, stepLocal_0=-4] [L61] COND TRUE stepLocal_0 < WrapperStruct00.var_1_6 [L62] EXPR WrapperStruct00.var_1_9 [L62] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1] [L62] EXPR ((WrapperStruct00.var_1_9) < (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_10) [L62] EXPR WrapperStruct00.var_1_9 [L62] EXPR ((WrapperStruct00.var_1_9) < (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_10) VAL [WrapperStruct00={4:0}, isInitial=1] [L62] WrapperStruct00.var_1_8 = ((((WrapperStruct00.var_1_9) < (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_10))) [L64] EXPR WrapperStruct00.var_1_9 [L64] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1] [L64] EXPR ((WrapperStruct00.var_1_9) > (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_10) [L64] EXPR WrapperStruct00.var_1_10 [L64] EXPR ((WrapperStruct00.var_1_9) > (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_10) VAL [WrapperStruct00={4:0}, isInitial=1] [L64] WrapperStruct00.var_1_11 = ((((WrapperStruct00.var_1_9) > (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_10))) [L65] EXPR WrapperStruct00.var_1_5 [L65] WrapperStruct00.var_1_18 = WrapperStruct00.var_1_5 [L66] EXPR WrapperStruct00.var_1_6 [L66] WrapperStruct00.var_1_19 = WrapperStruct00.var_1_6 [L67] EXPR WrapperStruct00.var_1_2 [L67] EXPR WrapperStruct00.var_1_3 [L67] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1] [L67] COND TRUE (WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) <= (- WrapperStruct00.var_1_8) [L68] EXPR WrapperStruct00.var_1_5 [L68] EXPR WrapperStruct00.var_1_6 [L68] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1] [L68] EXPR (((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) < (WrapperStruct00.var_1_7)) ? ((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_7) [L68] EXPR WrapperStruct00.var_1_5 [L68] EXPR WrapperStruct00.var_1_6 [L68] EXPR (((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) < (WrapperStruct00.var_1_7)) ? ((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_7) VAL [WrapperStruct00={4:0}, isInitial=1] [L68] WrapperStruct00.var_1_1 = (((((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) < (WrapperStruct00.var_1_7)) ? ((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_7))) [L72] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1] [L72] EXPR WrapperStruct00.var_1_6 | 5 VAL [WrapperStruct00={4:0}, isInitial=1] [L72] signed long int stepLocal_1 = WrapperStruct00.var_1_6 | 5; [L73] EXPR WrapperStruct00.var_1_5 [L73] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, stepLocal_1=5] [L73] EXPR ((WrapperStruct00.var_1_5) > (WrapperStruct00.var_1_7)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_7) [L73] EXPR WrapperStruct00.var_1_5 [L73] EXPR ((WrapperStruct00.var_1_5) > (WrapperStruct00.var_1_7)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_7) VAL [WrapperStruct00={4:0}, isInitial=1, stepLocal_1=5] [L73] COND FALSE !(stepLocal_1 <= ((((WrapperStruct00.var_1_5) > (WrapperStruct00.var_1_7)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_7)))) [L76] EXPR WrapperStruct00.var_1_6 [L76] EXPR WrapperStruct00.var_1_19 [L76] EXPR WrapperStruct00.var_1_19 VAL [WrapperStruct00={4:0}, isInitial=1] [L76] EXPR ((WrapperStruct00.var_1_19) < (WrapperStruct00.var_1_19)) ? (WrapperStruct00.var_1_19) : (WrapperStruct00.var_1_19) [L76] EXPR WrapperStruct00.var_1_19 [L76] EXPR ((WrapperStruct00.var_1_19) < (WrapperStruct00.var_1_19)) ? (WrapperStruct00.var_1_19) : (WrapperStruct00.var_1_19) VAL [WrapperStruct00={4:0}, isInitial=1] [L76] EXPR WrapperStruct00.var_1_19 [L76] WrapperStruct00.var_1_12 = (WrapperStruct00.var_1_6 + (((((WrapperStruct00.var_1_19) < (WrapperStruct00.var_1_19)) ? (WrapperStruct00.var_1_19) : (WrapperStruct00.var_1_19))) - WrapperStruct00.var_1_19)) [L116] RET step() [L117] CALL, EXPR property() [L107] EXPR WrapperStruct00.var_1_2 [L107] EXPR WrapperStruct00.var_1_3 [L107] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1] [L107] EXPR ((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) <= (- WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_1 == ((signed char) (((((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) < (WrapperStruct00.var_1_7)) ? ((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_7))))) : (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_5)) [L107] EXPR WrapperStruct00.var_1_1 [L107] EXPR WrapperStruct00.var_1_5 [L107] EXPR ((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) <= (- WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_1 == ((signed char) (((((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) < (WrapperStruct00.var_1_7)) ? ((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_7))))) : (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_5)) VAL [WrapperStruct00={4:0}, isInitial=1] [L107] EXPR (((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) <= (- WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_1 == ((signed char) (((((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) < (WrapperStruct00.var_1_7)) ? ((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_7))))) : (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_5))) && ((-4 < WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_8 == ((float) ((((WrapperStruct00.var_1_9) < (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_10))))) : 1) VAL [WrapperStruct00={4:0}, isInitial=1] [L107] EXPR ((((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) <= (- WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_1 == ((signed char) (((((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) < (WrapperStruct00.var_1_7)) ? ((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_7))))) : (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_5))) && ((-4 < WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_8 == ((float) ((((WrapperStruct00.var_1_9) < (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_10))))) : 1)) && (WrapperStruct00.var_1_11 == ((float) ((((WrapperStruct00.var_1_9) > (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_10))))) VAL [WrapperStruct00={4:0}, isInitial=1] [L107] EXPR (((((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) <= (- WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_1 == ((signed char) (((((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) < (WrapperStruct00.var_1_7)) ? ((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_7))))) : (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_5))) && ((-4 < WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_8 == ((float) ((((WrapperStruct00.var_1_9) < (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_10))))) : 1)) && (WrapperStruct00.var_1_11 == ((float) ((((WrapperStruct00.var_1_9) > (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_10)))))) && (((WrapperStruct00.var_1_6 | 5) <= ((((WrapperStruct00.var_1_5) > (WrapperStruct00.var_1_7)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_7)))) ? (WrapperStruct00.var_1_12 == ((signed long int) (((((WrapperStruct00.var_1_6) < ((WrapperStruct00.var_1_13 - WrapperStruct00.var_1_19))) ? (WrapperStruct00.var_1_6) : ((WrapperStruct00.var_1_13 - WrapperStruct00.var_1_19)))) - (WrapperStruct00.var_1_15 - ((((WrapperStruct00.var_1_5) < 0 ) ? -(WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_5))))))) : (WrapperStruct00.var_1_12 == ((signed long int) (WrapperStruct00.var_1_6 + (((((WrapperStruct00.var_1_19) < (WrapperStruct00.var_1_19)) ? (WrapperStruct00.var_1_19) : (WrapperStruct00.var_1_19))) - WrapperStruct00.var_1_19))))) VAL [WrapperStruct00={4:0}, isInitial=1] [L107] EXPR ((((((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) <= (- WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_1 == ((signed char) (((((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) < (WrapperStruct00.var_1_7)) ? ((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_7))))) : (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_5))) && ((-4 < WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_8 == ((float) ((((WrapperStruct00.var_1_9) < (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_10))))) : 1)) && (WrapperStruct00.var_1_11 == ((float) ((((WrapperStruct00.var_1_9) > (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_10)))))) && (((WrapperStruct00.var_1_6 | 5) <= ((((WrapperStruct00.var_1_5) > (WrapperStruct00.var_1_7)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_7)))) ? (WrapperStruct00.var_1_12 == ((signed long int) (((((WrapperStruct00.var_1_6) < ((WrapperStruct00.var_1_13 - WrapperStruct00.var_1_19))) ? (WrapperStruct00.var_1_6) : ((WrapperStruct00.var_1_13 - WrapperStruct00.var_1_19)))) - (WrapperStruct00.var_1_15 - ((((WrapperStruct00.var_1_5) < 0 ) ? -(WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_5))))))) : (WrapperStruct00.var_1_12 == ((signed long int) (WrapperStruct00.var_1_6 + (((((WrapperStruct00.var_1_19) < (WrapperStruct00.var_1_19)) ? (WrapperStruct00.var_1_19) : (WrapperStruct00.var_1_19))) - WrapperStruct00.var_1_19)))))) && (WrapperStruct00.var_1_18 == ((signed short int) WrapperStruct00.var_1_5)) VAL [WrapperStruct00={4:0}, isInitial=1] [L107] EXPR (((((((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) <= (- WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_1 == ((signed char) (((((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) < (WrapperStruct00.var_1_7)) ? ((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_7))))) : (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_5))) && ((-4 < WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_8 == ((float) ((((WrapperStruct00.var_1_9) < (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_10))))) : 1)) && (WrapperStruct00.var_1_11 == ((float) ((((WrapperStruct00.var_1_9) > (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_10)))))) && (((WrapperStruct00.var_1_6 | 5) <= ((((WrapperStruct00.var_1_5) > (WrapperStruct00.var_1_7)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_7)))) ? (WrapperStruct00.var_1_12 == ((signed long int) (((((WrapperStruct00.var_1_6) < ((WrapperStruct00.var_1_13 - WrapperStruct00.var_1_19))) ? (WrapperStruct00.var_1_6) : ((WrapperStruct00.var_1_13 - WrapperStruct00.var_1_19)))) - (WrapperStruct00.var_1_15 - ((((WrapperStruct00.var_1_5) < 0 ) ? -(WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_5))))))) : (WrapperStruct00.var_1_12 == ((signed long int) (WrapperStruct00.var_1_6 + (((((WrapperStruct00.var_1_19) < (WrapperStruct00.var_1_19)) ? (WrapperStruct00.var_1_19) : (WrapperStruct00.var_1_19))) - WrapperStruct00.var_1_19)))))) && (WrapperStruct00.var_1_18 == ((signed short int) WrapperStruct00.var_1_5))) && (WrapperStruct00.var_1_19 == ((unsigned short int) WrapperStruct00.var_1_6)) VAL [WrapperStruct00={4:0}, isInitial=1] [L107-L108] return (((((((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) <= (- WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_1 == ((signed char) (((((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) < (WrapperStruct00.var_1_7)) ? ((WrapperStruct00.var_1_5 - WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_7))))) : (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_5))) && ((-4 < WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_8 == ((float) ((((WrapperStruct00.var_1_9) < (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_10))))) : 1)) && (WrapperStruct00.var_1_11 == ((float) ((((WrapperStruct00.var_1_9) > (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_10)))))) && (((WrapperStruct00.var_1_6 | 5) <= ((((WrapperStruct00.var_1_5) > (WrapperStruct00.var_1_7)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_7)))) ? (WrapperStruct00.var_1_12 == ((signed long int) (((((WrapperStruct00.var_1_6) < ((WrapperStruct00.var_1_13 - WrapperStruct00.var_1_19))) ? (WrapperStruct00.var_1_6) : ((WrapperStruct00.var_1_13 - WrapperStruct00.var_1_19)))) - (WrapperStruct00.var_1_15 - ((((WrapperStruct00.var_1_5) < 0 ) ? -(WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_5))))))) : (WrapperStruct00.var_1_12 == ((signed long int) (WrapperStruct00.var_1_6 + (((((WrapperStruct00.var_1_19) < (WrapperStruct00.var_1_19)) ? (WrapperStruct00.var_1_19) : (WrapperStruct00.var_1_19))) - WrapperStruct00.var_1_19)))))) && (WrapperStruct00.var_1_18 == ((signed short int) WrapperStruct00.var_1_5))) && (WrapperStruct00.var_1_19 == ((unsigned short int) WrapperStruct00.var_1_6)) ; [L117] RET, EXPR property() [L117] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, isInitial=1] [L19] reach_error() VAL [WrapperStruct00={4:0}, isInitial=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 123 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.0s, OverallIterations: 8, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 455 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 455 mSDsluCounter, 3331 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2148 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1218 IncrementalHoareTripleChecker+Invalid, 1254 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 1183 mSDtfsCounter, 1218 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 187 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=372occurred in iteration=5, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 95 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 1182 NumberOfCodeBlocks, 1182 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1040 ConstructedInterpolants, 0 QuantifiedInterpolants, 1469 SizeOfPredicates, 0 NumberOfNonLiveVariables, 515 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 2886/2912 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 [2024-12-02 08:10:53,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-28.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e1d78d248c74132bd311292745f8a4e0496a51de00b4b221480ef3ff016a6c65 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:10:55,380 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:10:55,470 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 08:10:55,476 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:10:55,477 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:10:55,500 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:10:55,500 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:10:55,501 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:10:55,501 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:10:55,501 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:10:55,501 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:10:55,501 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:10:55,502 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:10:55,502 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:10:55,502 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:10:55,502 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:10:55,502 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:10:55,502 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 08:10:55,502 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 08:10:55,502 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:10:55,503 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:10:55,503 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:10:55,503 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:10:55,503 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 08:10:55,503 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 08:10:55,503 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 08:10:55,503 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 08:10:55,503 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:10:55,503 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:10:55,504 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:10:55,504 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:10:55,504 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:10:55,504 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:10:55,504 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:10:55,504 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:10:55,504 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:10:55,504 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:10:55,504 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:10:55,505 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:10:55,505 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:10:55,505 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:10:55,505 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:10:55,505 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:10:55,505 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:10:55,505 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 08:10:55,505 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 08:10:55,505 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:10:55,506 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:10:55,506 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:10:55,506 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:10:55,506 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_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1d78d248c74132bd311292745f8a4e0496a51de00b4b221480ef3ff016a6c65 [2024-12-02 08:10:55,778 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:10:55,788 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:10:55,791 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:10:55,793 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:10:55,793 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:10:55,794 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-28.i [2024-12-02 08:10:59,097 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/data/4f6c1e265/b9ec40eb619c453ab2b9c4624b03e768/FLAG15a108911 [2024-12-02 08:10:59,307 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:10:59,307 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-28.i [2024-12-02 08:10:59,317 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/data/4f6c1e265/b9ec40eb619c453ab2b9c4624b03e768/FLAG15a108911 [2024-12-02 08:10:59,649 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/data/4f6c1e265/b9ec40eb619c453ab2b9c4624b03e768 [2024-12-02 08:10:59,651 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:10:59,652 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:10:59,653 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:10:59,653 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:10:59,658 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:10:59,659 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:10:59" (1/1) ... [2024-12-02 08:10:59,660 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@676d6075 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:59, skipping insertion in model container [2024-12-02 08:10:59,661 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:10:59" (1/1) ... [2024-12-02 08:10:59,681 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:10:59,822 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_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-28.i[916,929] [2024-12-02 08:10:59,870 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:10:59,883 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:10:59,894 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_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-28.i[916,929] [2024-12-02 08:10:59,943 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:10:59,966 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:10:59,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:59 WrapperNode [2024-12-02 08:10:59,966 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:10:59,967 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:10:59,967 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:10:59,967 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:10:59,972 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:59" (1/1) ... [2024-12-02 08:10:59,989 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:59" (1/1) ... [2024-12-02 08:11:00,022 INFO L138 Inliner]: procedures = 37, calls = 178, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 551 [2024-12-02 08:11:00,022 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:11:00,022 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:11:00,022 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:11:00,022 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:11:00,029 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:59" (1/1) ... [2024-12-02 08:11:00,029 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:59" (1/1) ... [2024-12-02 08:11:00,035 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:59" (1/1) ... [2024-12-02 08:11:00,055 INFO L175 MemorySlicer]: Split 153 memory accesses to 2 slices as follows [2, 151]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 33 writes are split as follows [0, 33]. [2024-12-02 08:11:00,055 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:59" (1/1) ... [2024-12-02 08:11:00,055 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:59" (1/1) ... [2024-12-02 08:11:00,078 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:59" (1/1) ... [2024-12-02 08:11:00,079 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:59" (1/1) ... [2024-12-02 08:11:00,084 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:59" (1/1) ... [2024-12-02 08:11:00,087 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:59" (1/1) ... [2024-12-02 08:11:00,090 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:59" (1/1) ... [2024-12-02 08:11:00,095 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:11:00,096 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:11:00,096 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:11:00,096 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:11:00,098 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:59" (1/1) ... [2024-12-02 08:11:00,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:11:00,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:11:00,135 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:11:00,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:11:00,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:11:00,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-12-02 08:11:00,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-12-02 08:11:00,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 08:11:00,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-12-02 08:11:00,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-12-02 08:11:00,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-12-02 08:11:00,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-12-02 08:11:00,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-12-02 08:11:00,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-12-02 08:11:00,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-12-02 08:11:00,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-12-02 08:11:00,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-12-02 08:11:00,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-12-02 08:11:00,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-12-02 08:11:00,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#0 [2024-12-02 08:11:00,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#1 [2024-12-02 08:11:00,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2024-12-02 08:11:00,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2024-12-02 08:11:00,182 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 08:11:00,182 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 08:11:00,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#0 [2024-12-02 08:11:00,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#1 [2024-12-02 08:11:00,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:11:00,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:11:00,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-12-02 08:11:00,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-12-02 08:11:00,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-12-02 08:11:00,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-12-02 08:11:00,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-12-02 08:11:00,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-12-02 08:11:00,343 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:11:00,345 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:11:03,570 INFO L? ?]: Removed 174 outVars from TransFormulas that were not future-live. [2024-12-02 08:11:03,570 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:11:03,584 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:11:03,584 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 08:11:03,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:11:03 BoogieIcfgContainer [2024-12-02 08:11:03,585 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:11:03,587 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:11:03,588 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:11:03,593 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:11:03,593 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:10:59" (1/3) ... [2024-12-02 08:11:03,594 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59003b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:11:03, skipping insertion in model container [2024-12-02 08:11:03,594 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:10:59" (2/3) ... [2024-12-02 08:11:03,594 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59003b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:11:03, skipping insertion in model container [2024-12-02 08:11:03,594 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:11:03" (3/3) ... [2024-12-02 08:11:03,596 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-28.i [2024-12-02 08:11:03,613 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:11:03,615 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-28.i that has 2 procedures, 115 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 08:11:03,670 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:11:03,681 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;@5a3b8998, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:11:03,681 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 08:11:03,686 INFO L276 IsEmpty]: Start isEmpty. Operand has 115 states, 98 states have (on average 1.4285714285714286) internal successors, (140), 99 states have internal predecessors, (140), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 08:11:03,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-12-02 08:11:03,699 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:11:03,700 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:11:03,700 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:11:03,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:11:03,706 INFO L85 PathProgramCache]: Analyzing trace with hash 2114448736, now seen corresponding path program 1 times [2024-12-02 08:11:03,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:11:03,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [954166450] [2024-12-02 08:11:03,719 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:11:03,720 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 [2024-12-02 08:11:03,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:11:03,722 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-02 08:11:03,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-02 08:11:04,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:11:04,181 INFO L256 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 08:11:04,188 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:11:04,226 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2024-12-02 08:11:04,226 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:11:04,227 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:11:04,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [954166450] [2024-12-02 08:11:04,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [954166450] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:11:04,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:11:04,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 08:11:04,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279502618] [2024-12-02 08:11:04,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:11:04,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 08:11:04,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:11:04,252 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 08:11:04,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:11:04,254 INFO L87 Difference]: Start difference. First operand has 115 states, 98 states have (on average 1.4285714285714286) internal successors, (140), 99 states have internal predecessors, (140), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 08:11:04,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:11:04,276 INFO L93 Difference]: Finished difference Result 223 states and 344 transitions. [2024-12-02 08:11:04,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 08:11:04,278 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 128 [2024-12-02 08:11:04,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:11:04,283 INFO L225 Difference]: With dead ends: 223 [2024-12-02 08:11:04,283 INFO L226 Difference]: Without dead ends: 111 [2024-12-02 08:11:04,286 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:11:04,289 INFO L435 NwaCegarLoop]: 161 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, 161 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:11:04,290 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:11:04,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-12-02 08:11:04,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2024-12-02 08:11:04,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 95 states have (on average 1.4) internal successors, (133), 95 states have internal predecessors, (133), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 08:11:04,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 161 transitions. [2024-12-02 08:11:04,329 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 161 transitions. Word has length 128 [2024-12-02 08:11:04,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:11:04,330 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 161 transitions. [2024-12-02 08:11:04,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 08:11:04,330 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 161 transitions. [2024-12-02 08:11:04,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-12-02 08:11:04,332 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:11:04,332 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:11:04,345 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Forceful destruction successful, exit code 0 [2024-12-02 08:11:04,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:11:04,533 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:11:04,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:11:04,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1153224588, now seen corresponding path program 1 times [2024-12-02 08:11:04,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:11:04,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [696718780] [2024-12-02 08:11:04,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:11:04,536 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 [2024-12-02 08:11:04,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:11:04,538 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-02 08:11:04,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-02 08:11:05,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:11:05,063 INFO L256 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 08:11:05,068 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:11:05,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 08:11:05,172 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 08:11:05,173 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:11:05,173 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:11:05,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [696718780] [2024-12-02 08:11:05,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [696718780] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:11:05,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:11:05,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:11:05,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728229805] [2024-12-02 08:11:05,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:11:05,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:11:05,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:11:05,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:11:05,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:11:05,176 INFO L87 Difference]: Start difference. First operand 111 states and 161 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:11:05,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:11:05,230 INFO L93 Difference]: Finished difference Result 219 states and 319 transitions. [2024-12-02 08:11:05,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:11:05,231 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 128 [2024-12-02 08:11:05,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:11:05,233 INFO L225 Difference]: With dead ends: 219 [2024-12-02 08:11:05,233 INFO L226 Difference]: Without dead ends: 111 [2024-12-02 08:11:05,234 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:11:05,235 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 0 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:11:05,235 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 314 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:11:05,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-12-02 08:11:05,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2024-12-02 08:11:05,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 95 states have (on average 1.3894736842105264) internal successors, (132), 95 states have internal predecessors, (132), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 08:11:05,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 160 transitions. [2024-12-02 08:11:05,247 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 160 transitions. Word has length 128 [2024-12-02 08:11:05,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:11:05,249 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 160 transitions. [2024-12-02 08:11:05,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:11:05,250 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 160 transitions. [2024-12-02 08:11:05,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-12-02 08:11:05,252 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:11:05,252 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:11:05,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-12-02 08:11:05,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:11:05,453 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:11:05,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:11:05,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1147598002, now seen corresponding path program 1 times [2024-12-02 08:11:05,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:11:05,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [556421603] [2024-12-02 08:11:05,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:11:05,454 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 [2024-12-02 08:11:05,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:11:05,456 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-02 08:11:05,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-02 08:11:05,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:11:05,934 INFO L256 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 08:11:05,938 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:11:05,993 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 08:11:05,993 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:11:05,993 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:11:05,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [556421603] [2024-12-02 08:11:05,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [556421603] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:11:05,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:11:05,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:11:05,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588775473] [2024-12-02 08:11:05,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:11:05,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:11:05,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:11:05,995 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:11:05,995 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:11:05,996 INFO L87 Difference]: Start difference. First operand 111 states and 160 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:11:06,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:11:06,132 INFO L93 Difference]: Finished difference Result 226 states and 327 transitions. [2024-12-02 08:11:06,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:11:06,133 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 128 [2024-12-02 08:11:06,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:11:06,135 INFO L225 Difference]: With dead ends: 226 [2024-12-02 08:11:06,135 INFO L226 Difference]: Without dead ends: 118 [2024-12-02 08:11:06,136 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:11:06,137 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 1 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:11:06,138 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 744 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:11:06,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-12-02 08:11:06,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 117. [2024-12-02 08:11:06,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 101 states have (on average 1.3663366336633664) internal successors, (138), 101 states have internal predecessors, (138), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 08:11:06,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 166 transitions. [2024-12-02 08:11:06,149 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 166 transitions. Word has length 128 [2024-12-02 08:11:06,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:11:06,150 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 166 transitions. [2024-12-02 08:11:06,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:11:06,150 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 166 transitions. [2024-12-02 08:11:06,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-12-02 08:11:06,153 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:11:06,153 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:11:06,163 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-02 08:11:06,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:11:06,354 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:11:06,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:11:06,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1372361932, now seen corresponding path program 1 times [2024-12-02 08:11:06,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:11:06,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1831176104] [2024-12-02 08:11:06,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:11:06,356 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 [2024-12-02 08:11:06,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:11:06,358 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-02 08:11:06,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-02 08:11:06,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:11:06,757 INFO L256 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 08:11:06,761 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:11:06,876 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 41 [2024-12-02 08:11:06,927 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 08:11:06,927 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:11:06,927 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:11:06,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1831176104] [2024-12-02 08:11:06,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1831176104] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:11:06,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:11:06,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:11:06,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759595555] [2024-12-02 08:11:06,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:11:06,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:11:06,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:11:06,929 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:11:06,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:11:06,930 INFO L87 Difference]: Start difference. First operand 117 states and 166 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:11:08,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:11:08,628 INFO L93 Difference]: Finished difference Result 232 states and 330 transitions. [2024-12-02 08:11:08,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:11:08,629 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 128 [2024-12-02 08:11:08,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:11:08,630 INFO L225 Difference]: With dead ends: 232 [2024-12-02 08:11:08,630 INFO L226 Difference]: Without dead ends: 118 [2024-12-02 08:11:08,630 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:11:08,631 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 154 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:11:08,631 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 458 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 08:11:08,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-12-02 08:11:08,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 117. [2024-12-02 08:11:08,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 101 states have (on average 1.3564356435643565) internal successors, (137), 101 states have internal predecessors, (137), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 08:11:08,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 165 transitions. [2024-12-02 08:11:08,642 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 165 transitions. Word has length 128 [2024-12-02 08:11:08,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:11:08,642 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 165 transitions. [2024-12-02 08:11:08,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:11:08,642 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 165 transitions. [2024-12-02 08:11:08,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-12-02 08:11:08,644 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:11:08,644 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:11:08,650 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-02 08:11:08,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:11:08,844 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:11:08,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:11:08,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1025550586, now seen corresponding path program 1 times [2024-12-02 08:11:08,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:11:08,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [792556001] [2024-12-02 08:11:08,846 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:11:08,846 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 [2024-12-02 08:11:08,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:11:08,848 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-02 08:11:08,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-02 08:11:09,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:11:09,214 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 08:11:09,220 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:11:09,335 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 41 [2024-12-02 08:11:09,375 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 08:11:09,375 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:11:09,375 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:11:09,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [792556001] [2024-12-02 08:11:09,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [792556001] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:11:09,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:11:09,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:11:09,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516025067] [2024-12-02 08:11:09,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:11:09,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:11:09,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:11:09,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:11:09,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:11:09,377 INFO L87 Difference]: Start difference. First operand 117 states and 165 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 08:11:10,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:11:10,860 INFO L93 Difference]: Finished difference Result 232 states and 328 transitions. [2024-12-02 08:11:10,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:11:10,861 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 130 [2024-12-02 08:11:10,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:11:10,863 INFO L225 Difference]: With dead ends: 232 [2024-12-02 08:11:10,863 INFO L226 Difference]: Without dead ends: 118 [2024-12-02 08:11:10,863 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:11:10,864 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 142 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:11:10,864 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 453 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 08:11:10,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-12-02 08:11:10,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 117. [2024-12-02 08:11:10,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 101 states have (on average 1.3465346534653466) internal successors, (136), 101 states have internal predecessors, (136), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 08:11:10,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 164 transitions. [2024-12-02 08:11:10,873 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 164 transitions. Word has length 130 [2024-12-02 08:11:10,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:11:10,874 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 164 transitions. [2024-12-02 08:11:10,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 08:11:10,874 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 164 transitions. [2024-12-02 08:11:10,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 08:11:10,875 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:11:10,876 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:11:10,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Forceful destruction successful, exit code 0 [2024-12-02 08:11:11,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:11:11,076 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:11:11,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:11:11,077 INFO L85 PathProgramCache]: Analyzing trace with hash -727615500, now seen corresponding path program 1 times [2024-12-02 08:11:11,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:11:11,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [526896643] [2024-12-02 08:11:11,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:11:11,078 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 [2024-12-02 08:11:11,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:11:11,079 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-02 08:11:11,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-02 08:11:11,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:11:11,570 INFO L256 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 08:11:11,577 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:11:11,597 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 [2024-12-02 08:11:11,830 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 36 treesize of output 29 [2024-12-02 08:11:12,091 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:11:12,091 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 51 treesize of output 32 [2024-12-02 08:11:12,307 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:11:12,307 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 51 treesize of output 32 [2024-12-02 08:11:12,463 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:11:12,463 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 51 treesize of output 32 [2024-12-02 08:11:12,682 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:11:12,682 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 51 treesize of output 32 [2024-12-02 08:11:12,927 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:11:12,927 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 42 treesize of output 18 [2024-12-02 08:11:12,976 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 201 proven. 27 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-12-02 08:11:12,977 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:11:13,444 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 12 proven. 27 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-12-02 08:11:13,444 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:11:13,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [526896643] [2024-12-02 08:11:13,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [526896643] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:11:13,444 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:11:13,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 14 [2024-12-02 08:11:13,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584203781] [2024-12-02 08:11:13,445 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:11:13,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 08:11:13,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:11:13,446 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 08:11:13,446 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:11:13,447 INFO L87 Difference]: Start difference. First operand 117 states and 164 transitions. Second operand has 14 states, 12 states have (on average 8.0) internal successors, (96), 13 states have internal predecessors, (96), 6 states have call successors, (24), 4 states have call predecessors, (24), 5 states have return successors, (24), 4 states have call predecessors, (24), 6 states have call successors, (24) [2024-12-02 08:11:16,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:11:19,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:11:19,047 INFO L93 Difference]: Finished difference Result 239 states and 331 transitions. [2024-12-02 08:11:19,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 08:11:19,048 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 8.0) internal successors, (96), 13 states have internal predecessors, (96), 6 states have call successors, (24), 4 states have call predecessors, (24), 5 states have return successors, (24), 4 states have call predecessors, (24), 6 states have call successors, (24) Word has length 132 [2024-12-02 08:11:19,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:11:19,050 INFO L225 Difference]: With dead ends: 239 [2024-12-02 08:11:19,050 INFO L226 Difference]: Without dead ends: 125 [2024-12-02 08:11:19,050 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 249 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2024-12-02 08:11:19,051 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 301 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:11:19,051 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 330 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2024-12-02 08:11:19,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-12-02 08:11:19,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2024-12-02 08:11:19,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 107 states have (on average 1.3177570093457944) internal successors, (141), 107 states have internal predecessors, (141), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 08:11:19,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 169 transitions. [2024-12-02 08:11:19,067 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 169 transitions. Word has length 132 [2024-12-02 08:11:19,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:11:19,067 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 169 transitions. [2024-12-02 08:11:19,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 8.0) internal successors, (96), 13 states have internal predecessors, (96), 6 states have call successors, (24), 4 states have call predecessors, (24), 5 states have return successors, (24), 4 states have call predecessors, (24), 6 states have call successors, (24) [2024-12-02 08:11:19,068 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 169 transitions. [2024-12-02 08:11:19,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 08:11:19,070 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:11:19,070 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:11:19,079 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-12-02 08:11:19,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:11:19,270 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:11:19,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:11:19,271 INFO L85 PathProgramCache]: Analyzing trace with hash 57038841, now seen corresponding path program 1 times [2024-12-02 08:11:19,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:11:19,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [851413596] [2024-12-02 08:11:19,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:11:19,272 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 [2024-12-02 08:11:19,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:11:19,274 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-02 08:11:19,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-02 08:11:19,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:11:19,876 INFO L256 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-12-02 08:11:19,884 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:11:19,896 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-12-02 08:11:19,980 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 26 treesize of output 25 [2024-12-02 08:11:20,149 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:11:20,149 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 36 treesize of output 38 [2024-12-02 08:11:20,398 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:11:20,399 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 51 treesize of output 41 [2024-12-02 08:11:20,537 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:11:20,537 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 51 treesize of output 41 [2024-12-02 08:11:20,695 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:11:20,695 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 51 treesize of output 41 [2024-12-02 08:11:20,882 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:11:20,883 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 51 treesize of output 41 [2024-12-02 08:11:21,148 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:11:21,149 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 51 treesize of output 41 [2024-12-02 08:11:21,209 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:11:21,210 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 76 treesize of output 53 [2024-12-02 08:11:21,300 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:11:21,301 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 69 treesize of output 65 [2024-12-02 08:11:21,547 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:11:21,548 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 84 treesize of output 68 [2024-12-02 08:11:21,612 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:11:21,613 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 109 treesize of output 49 [2024-12-02 08:11:21,675 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 209 proven. 33 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-12-02 08:11:21,675 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:11:21,871 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 08:11:21,871 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:11:21,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [851413596] [2024-12-02 08:11:21,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [851413596] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:11:21,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:11:21,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 14 [2024-12-02 08:11:21,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717876040] [2024-12-02 08:11:21,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:11:21,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:11:21,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:11:21,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:11:21,873 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:11:21,873 INFO L87 Difference]: Start difference. First operand 125 states and 169 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:11:23,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:11:23,519 INFO L93 Difference]: Finished difference Result 319 states and 432 transitions. [2024-12-02 08:11:23,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:11:23,520 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 134 [2024-12-02 08:11:23,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:11:23,521 INFO L225 Difference]: With dead ends: 319 [2024-12-02 08:11:23,521 INFO L226 Difference]: Without dead ends: 197 [2024-12-02 08:11:23,522 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-12-02 08:11:23,523 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 80 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:11:23,523 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 464 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 08:11:23,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-12-02 08:11:23,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 194. [2024-12-02 08:11:23,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 173 states have (on average 1.3352601156069364) internal successors, (231), 174 states have internal predecessors, (231), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 08:11:23,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 263 transitions. [2024-12-02 08:11:23,535 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 263 transitions. Word has length 134 [2024-12-02 08:11:23,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:11:23,535 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 263 transitions. [2024-12-02 08:11:23,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:11:23,536 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 263 transitions. [2024-12-02 08:11:23,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 08:11:23,537 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:11:23,537 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:11:23,548 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-02 08:11:23,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:11:23,738 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:11:23,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:11:23,738 INFO L85 PathProgramCache]: Analyzing trace with hash 712789963, now seen corresponding path program 1 times [2024-12-02 08:11:23,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:11:23,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1261395857] [2024-12-02 08:11:23,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:11:23,739 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 [2024-12-02 08:11:23,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:11:23,741 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-02 08:11:23,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-02 08:11:24,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:11:24,140 INFO L256 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 08:11:24,142 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:11:24,175 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 08:11:24,175 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:11:24,175 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:11:24,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1261395857] [2024-12-02 08:11:24,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1261395857] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:11:24,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:11:24,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:11:24,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291546650] [2024-12-02 08:11:24,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:11:24,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:11:24,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:11:24,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:11:24,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:11:24,177 INFO L87 Difference]: Start difference. First operand 194 states and 263 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:11:24,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:11:24,251 INFO L93 Difference]: Finished difference Result 391 states and 531 transitions. [2024-12-02 08:11:24,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:11:24,252 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 136 [2024-12-02 08:11:24,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:11:24,255 INFO L225 Difference]: With dead ends: 391 [2024-12-02 08:11:24,255 INFO L226 Difference]: Without dead ends: 200 [2024-12-02 08:11:24,256 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:11:24,256 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 0 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:11:24,257 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 599 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:11:24,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-12-02 08:11:24,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2024-12-02 08:11:24,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 179 states have (on average 1.324022346368715) internal successors, (237), 180 states have internal predecessors, (237), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 08:11:24,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 269 transitions. [2024-12-02 08:11:24,272 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 269 transitions. Word has length 136 [2024-12-02 08:11:24,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:11:24,273 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 269 transitions. [2024-12-02 08:11:24,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:11:24,273 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 269 transitions. [2024-12-02 08:11:24,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 08:11:24,274 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:11:24,275 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:11:24,286 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-12-02 08:11:24,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:11:24,475 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:11:24,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:11:24,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1945888692, now seen corresponding path program 1 times [2024-12-02 08:11:24,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:11:24,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [119465749] [2024-12-02 08:11:24,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:11:24,476 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 [2024-12-02 08:11:24,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:11:24,478 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-02 08:11:24,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-02 08:11:56,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:11:56,181 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 72 conjuncts are in the unsatisfiable core [2024-12-02 08:11:56,189 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:11:56,207 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 [2024-12-02 08:11:56,693 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 78 treesize of output 32 [2024-12-02 08:11:58,113 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:11:58,114 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 136 treesize of output 63 [2024-12-02 08:11:58,525 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:11:58,525 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 136 treesize of output 63 [2024-12-02 08:11:58,947 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:11:58,947 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 131 treesize of output 73 [2024-12-02 08:11:59,710 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 146 treesize of output 76 [2024-12-02 08:12:01,363 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:12:01,363 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 206 treesize of output 109 [2024-12-02 08:12:01,921 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:12:01,921 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 206 treesize of output 109 [2024-12-02 08:12:02,687 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:12:02,687 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 206 treesize of output 109 [2024-12-02 08:12:04,349 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:12:04,349 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 284 treesize of output 151 [2024-12-02 08:12:05,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 45 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 312 treesize of output 184 [2024-12-02 08:12:05,852 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:12:05,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 396 treesize of output 216 [2024-12-02 08:12:23,136 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:12:23,136 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 312 treesize of output 182 [2024-12-02 08:12:24,583 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:12:24,584 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 374 treesize of output 128 [2024-12-02 08:12:27,798 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 204 proven. 72 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-12-02 08:12:27,798 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:12:45,753 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 08:12:45,753 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:12:45,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [119465749] [2024-12-02 08:12:45,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [119465749] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:12:45,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:12:45,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [29] total 33 [2024-12-02 08:12:45,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860268222] [2024-12-02 08:12:45,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:12:45,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:12:45,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:12:45,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:12:45,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=858, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 08:12:45,755 INFO L87 Difference]: Start difference. First operand 200 states and 269 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:13:11,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:13:31,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:13:31,720 INFO L93 Difference]: Finished difference Result 393 states and 528 transitions. [2024-12-02 08:13:31,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:13:31,726 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 136 [2024-12-02 08:13:31,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:13:31,727 INFO L225 Difference]: With dead ends: 393 [2024-12-02 08:13:31,727 INFO L226 Difference]: Without dead ends: 196 [2024-12-02 08:13:31,728 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 32.6s TimeCoverageRelationStatistics Valid=203, Invalid=919, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 08:13:31,729 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 106 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:13:31,729 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 322 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 181 Invalid, 1 Unknown, 0 Unchecked, 44.3s Time] [2024-12-02 08:13:31,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-12-02 08:13:31,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 194. [2024-12-02 08:13:31,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 173 states have (on average 1.3179190751445087) internal successors, (228), 174 states have internal predecessors, (228), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 08:13:31,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 260 transitions. [2024-12-02 08:13:31,742 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 260 transitions. Word has length 136 [2024-12-02 08:13:31,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:13:31,743 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 260 transitions. [2024-12-02 08:13:31,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:13:31,743 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 260 transitions. [2024-12-02 08:13:31,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 08:13:31,744 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:13:31,744 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:13:31,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Forceful destruction successful, exit code 0 [2024-12-02 08:13:31,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:13:31,944 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:13:31,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:13:31,945 INFO L85 PathProgramCache]: Analyzing trace with hash 348225118, now seen corresponding path program 1 times [2024-12-02 08:13:31,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:13:31,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1543035615] [2024-12-02 08:13:31,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:13:31,945 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 [2024-12-02 08:13:31,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:13:31,947 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-02 08:13:31,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-02 08:14:05,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:14:06,117 INFO L256 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 71 conjuncts are in the unsatisfiable core [2024-12-02 08:14:06,125 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:14:06,145 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 [2024-12-02 08:14:06,626 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 78 treesize of output 32 [2024-12-02 08:14:08,130 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:14:08,130 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 131 treesize of output 73 [2024-12-02 08:14:08,769 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:14:08,769 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 141 treesize of output 86 [2024-12-02 08:14:09,528 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:14:09,528 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 151 treesize of output 99 [2024-12-02 08:14:10,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 102 [2024-12-02 08:14:12,511 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:14:12,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 226 treesize of output 135 [2024-12-02 08:14:13,247 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:14:13,247 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 226 treesize of output 135 [2024-12-02 08:14:14,200 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:14:14,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 226 treesize of output 135 [2024-12-02 08:14:16,286 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:14:16,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 304 treesize of output 177 [2024-12-02 08:14:17,115 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 45 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 329 treesize of output 180 [2024-12-02 08:14:26,145 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:14:26,146 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 390 treesize of output 218 [2024-12-02 08:14:39,597 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:14:39,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 405 treesize of output 221 [2024-12-02 08:14:41,175 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:14:41,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 467 treesize of output 169 [2024-12-02 08:14:44,419 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 220 proven. 72 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-12-02 08:14:44,420 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:15:01,372 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 08:15:01,372 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:15:01,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1543035615] [2024-12-02 08:15:01,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1543035615] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:15:01,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:15:01,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [32] total 36 [2024-12-02 08:15:01,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931550220] [2024-12-02 08:15:01,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:15:01,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:15:01,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:15:01,373 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:15:01,374 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=251, Invalid=1009, Unknown=0, NotChecked=0, Total=1260 [2024-12-02 08:15:01,374 INFO L87 Difference]: Start difference. First operand 194 states and 260 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:15:46,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:15:46,837 INFO L93 Difference]: Finished difference Result 387 states and 518 transitions. [2024-12-02 08:15:46,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:15:46,845 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 136 [2024-12-02 08:15:46,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:15:46,846 INFO L225 Difference]: With dead ends: 387 [2024-12-02 08:15:46,846 INFO L226 Difference]: Without dead ends: 196 [2024-12-02 08:15:46,847 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 34.4s TimeCoverageRelationStatistics Valid=256, Invalid=1076, Unknown=0, NotChecked=0, Total=1332 [2024-12-02 08:15:46,847 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 60 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.8s IncrementalHoareTripleChecker+Time [2024-12-02 08:15:46,848 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 461 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 43.8s Time] [2024-12-02 08:15:46,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-12-02 08:15:46,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 194. [2024-12-02 08:15:46,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 173 states have (on average 1.3121387283236994) internal successors, (227), 174 states have internal predecessors, (227), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 08:15:46,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 259 transitions. [2024-12-02 08:15:46,855 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 259 transitions. Word has length 136 [2024-12-02 08:15:46,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:15:46,855 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 259 transitions. [2024-12-02 08:15:46,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:15:46,856 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 259 transitions. [2024-12-02 08:15:46,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-12-02 08:15:46,856 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:15:46,856 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:15:46,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Forceful destruction successful, exit code 0 [2024-12-02 08:15:47,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:15:47,057 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:15:47,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:15:47,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1456644390, now seen corresponding path program 1 times [2024-12-02 08:15:47,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:15:47,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1616340093] [2024-12-02 08:15:47,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:15:47,058 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 [2024-12-02 08:15:47,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:15:47,059 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-02 08:15:47,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-02 08:15:47,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:15:47,600 INFO L256 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-12-02 08:15:47,605 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:15:47,790 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 [2024-12-02 08:15:47,947 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 50 treesize of output 22 [2024-12-02 08:15:47,996 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 50 treesize of output 22 [2024-12-02 08:15:48,059 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 50 treesize of output 22 [2024-12-02 08:15:48,144 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 50 treesize of output 22 [2024-12-02 08:15:48,259 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 150 treesize of output 64 [2024-12-02 08:15:48,352 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:15:48,352 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 124 treesize of output 55 [2024-12-02 08:15:48,454 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:15:48,454 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 55 [2024-12-02 08:15:48,743 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:15:48,744 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 190 treesize of output 64 [2024-12-02 08:15:49,006 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 192 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-12-02 08:15:49,007 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:15:49,950 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 08:15:49,951 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:15:49,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1616340093] [2024-12-02 08:15:49,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1616340093] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:15:49,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:15:49,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 17 [2024-12-02 08:15:49,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295348755] [2024-12-02 08:15:49,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:15:49,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:15:49,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:15:49,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:15:49,952 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:15:49,952 INFO L87 Difference]: Start difference. First operand 194 states and 259 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:15:57,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:15:57,240 INFO L93 Difference]: Finished difference Result 554 states and 737 transitions. [2024-12-02 08:15:57,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:15:57,241 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 138 [2024-12-02 08:15:57,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:15:57,243 INFO L225 Difference]: With dead ends: 554 [2024-12-02 08:15:57,243 INFO L226 Difference]: Without dead ends: 363 [2024-12-02 08:15:57,243 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 258 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2024-12-02 08:15:57,244 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 93 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:15:57,244 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 783 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2024-12-02 08:15:57,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-12-02 08:15:57,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 360. [2024-12-02 08:15:57,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 325 states have (on average 1.3076923076923077) internal successors, (425), 328 states have internal predecessors, (425), 26 states have call successors, (26), 8 states have call predecessors, (26), 8 states have return successors, (26), 23 states have call predecessors, (26), 26 states have call successors, (26) [2024-12-02 08:15:57,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 477 transitions. [2024-12-02 08:15:57,258 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 477 transitions. Word has length 138 [2024-12-02 08:15:57,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:15:57,258 INFO L471 AbstractCegarLoop]: Abstraction has 360 states and 477 transitions. [2024-12-02 08:15:57,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:15:57,258 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 477 transitions. [2024-12-02 08:15:57,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-12-02 08:15:57,259 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:15:57,259 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:15:57,271 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-02 08:15:57,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:15:57,460 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:15:57,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:15:57,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1714809828, now seen corresponding path program 1 times [2024-12-02 08:15:57,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:15:57,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [117334287] [2024-12-02 08:15:57,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:15:57,461 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 [2024-12-02 08:15:57,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:15:57,462 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-02 08:15:57,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-02 08:15:58,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:15:58,040 INFO L256 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-12-02 08:15:58,046 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:15:58,243 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 [2024-12-02 08:15:58,621 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 [2024-12-02 08:15:59,156 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:15:59,156 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 140 treesize of output 67 [2024-12-02 08:15:59,416 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:15:59,417 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 140 treesize of output 67 [2024-12-02 08:16:00,005 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:16:00,006 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 131 treesize of output 58 [2024-12-02 08:16:00,180 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 32 proven. 180 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-12-02 08:16:00,180 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:16:00,660 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 08:16:00,660 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:16:00,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [117334287] [2024-12-02 08:16:00,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [117334287] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:16:00,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:16:00,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 17 [2024-12-02 08:16:00,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39892607] [2024-12-02 08:16:00,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:16:00,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:16:00,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:16:00,661 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:16:00,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:16:00,662 INFO L87 Difference]: Start difference. First operand 360 states and 477 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:16:04,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:16:04,121 INFO L93 Difference]: Finished difference Result 714 states and 945 transitions. [2024-12-02 08:16:04,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:16:04,123 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 138 [2024-12-02 08:16:04,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:16:04,125 INFO L225 Difference]: With dead ends: 714 [2024-12-02 08:16:04,125 INFO L226 Difference]: Without dead ends: 357 [2024-12-02 08:16:04,126 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2024-12-02 08:16:04,127 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 89 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:16:04,127 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 425 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-12-02 08:16:04,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2024-12-02 08:16:04,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 354. [2024-12-02 08:16:04,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 319 states have (on average 1.3009404388714734) internal successors, (415), 322 states have internal predecessors, (415), 26 states have call successors, (26), 8 states have call predecessors, (26), 8 states have return successors, (26), 23 states have call predecessors, (26), 26 states have call successors, (26) [2024-12-02 08:16:04,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 467 transitions. [2024-12-02 08:16:04,150 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 467 transitions. Word has length 138 [2024-12-02 08:16:04,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:16:04,150 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 467 transitions. [2024-12-02 08:16:04,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:16:04,151 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 467 transitions. [2024-12-02 08:16:04,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-12-02 08:16:04,152 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:16:04,152 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:16:04,161 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-02 08:16:04,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:16:04,352 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:16:04,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:16:04,353 INFO L85 PathProgramCache]: Analyzing trace with hash 15895824, now seen corresponding path program 1 times [2024-12-02 08:16:04,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:16:04,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [667430250] [2024-12-02 08:16:04,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:16:04,353 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 [2024-12-02 08:16:04,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:16:04,355 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-02 08:16:04,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-02 08:16:04,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:16:04,844 INFO L256 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-12-02 08:16:04,849 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:16:05,051 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 [2024-12-02 08:16:05,285 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 80 treesize of output 34 [2024-12-02 08:16:05,377 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 80 treesize of output 34 [2024-12-02 08:16:05,498 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 80 treesize of output 34 [2024-12-02 08:16:05,703 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 131 treesize of output 67 [2024-12-02 08:16:05,819 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:16:05,820 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 153 treesize of output 58 [2024-12-02 08:16:05,843 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:16:05,843 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 127 treesize of output 58 [2024-12-02 08:16:05,927 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:16:05,927 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 131 treesize of output 58 [2024-12-02 08:16:06,093 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:16:06,093 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 166 treesize of output 58 [2024-12-02 08:16:06,331 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 192 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-12-02 08:16:06,331 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:16:06,862 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:16:06,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [667430250] [2024-12-02 08:16:06,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [667430250] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:16:06,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [720930223] [2024-12-02 08:16:06,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:16:06,862 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 08:16:06,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 08:16:06,864 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 08:16:06,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2024-12-02 08:16:10,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:16:11,001 INFO L256 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-12-02 08:16:11,008 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:16:11,637 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 [2024-12-02 08:16:12,447 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 64 treesize of output 32 [2024-12-02 08:16:13,378 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:16:13,378 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 1 case distinctions, treesize of input 112 treesize of output 63 [2024-12-02 08:16:13,709 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:16:13,709 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 1 case distinctions, treesize of input 112 treesize of output 63 [2024-12-02 08:16:14,598 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:16:14,598 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 1 case distinctions, treesize of input 130 treesize of output 69 [2024-12-02 08:16:15,201 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 32 proven. 180 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-12-02 08:16:15,202 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:16:15,938 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 08:16:15,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [720930223] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:16:15,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:16:15,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13, 14] total 30 [2024-12-02 08:16:15,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932322504] [2024-12-02 08:16:15,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:16:15,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:16:15,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:16:15,939 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:16:15,940 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=1126, Unknown=0, NotChecked=0, Total=1260 [2024-12-02 08:16:15,940 INFO L87 Difference]: Start difference. First operand 354 states and 467 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:16:19,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:16:19,106 INFO L93 Difference]: Finished difference Result 708 states and 933 transitions. [2024-12-02 08:16:19,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:16:19,107 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 138 [2024-12-02 08:16:19,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:16:19,109 INFO L225 Difference]: With dead ends: 708 [2024-12-02 08:16:19,109 INFO L226 Difference]: Without dead ends: 357 [2024-12-02 08:16:19,109 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 411 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=139, Invalid=1193, Unknown=0, NotChecked=0, Total=1332 [2024-12-02 08:16:19,110 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 166 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:16:19,110 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 351 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-12-02 08:16:19,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2024-12-02 08:16:19,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 354. [2024-12-02 08:16:19,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 319 states have (on average 1.2946708463949843) internal successors, (413), 322 states have internal predecessors, (413), 26 states have call successors, (26), 8 states have call predecessors, (26), 8 states have return successors, (26), 23 states have call predecessors, (26), 26 states have call successors, (26) [2024-12-02 08:16:19,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 465 transitions. [2024-12-02 08:16:19,135 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 465 transitions. Word has length 138 [2024-12-02 08:16:19,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:16:19,135 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 465 transitions. [2024-12-02 08:16:19,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:16:19,135 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 465 transitions. [2024-12-02 08:16:19,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-12-02 08:16:19,136 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:16:19,137 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:16:19,145 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2024-12-02 08:16:19,344 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-02 08:16:19,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:16:19,537 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:16:19,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:16:19,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1263967854, now seen corresponding path program 1 times [2024-12-02 08:16:19,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:16:19,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [691368248] [2024-12-02 08:16:19,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:16:19,538 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 [2024-12-02 08:16:19,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:16:19,539 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-02 08:16:19,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-02 08:16:20,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:16:20,074 INFO L256 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 08:16:20,078 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:16:20,302 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 [2024-12-02 08:16:20,580 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 80 treesize of output 34 [2024-12-02 08:16:20,702 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 80 treesize of output 34 [2024-12-02 08:16:21,036 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:16:21,036 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 131 treesize of output 58 [2024-12-02 08:16:21,065 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:16:21,065 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 166 treesize of output 58 [2024-12-02 08:16:21,186 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 180 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-12-02 08:16:21,186 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:16:21,558 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 08:16:21,558 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:16:21,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [691368248] [2024-12-02 08:16:21,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [691368248] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:16:21,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:16:21,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-12-02 08:16:21,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860282002] [2024-12-02 08:16:21,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:16:21,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:16:21,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:16:21,559 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:16:21,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:16:21,560 INFO L87 Difference]: Start difference. First operand 354 states and 465 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:16:23,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:16:23,896 INFO L93 Difference]: Finished difference Result 871 states and 1145 transitions. [2024-12-02 08:16:23,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:16:23,897 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 138 [2024-12-02 08:16:23,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:16:23,900 INFO L225 Difference]: With dead ends: 871 [2024-12-02 08:16:23,901 INFO L226 Difference]: Without dead ends: 520 [2024-12-02 08:16:23,901 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:16:23,902 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 105 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:16:23,902 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 328 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 08:16:23,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-12-02 08:16:23,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 415. [2024-12-02 08:16:23,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 380 states have (on average 1.305263157894737) internal successors, (496), 383 states have internal predecessors, (496), 26 states have call successors, (26), 8 states have call predecessors, (26), 8 states have return successors, (26), 23 states have call predecessors, (26), 26 states have call successors, (26) [2024-12-02 08:16:23,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 548 transitions. [2024-12-02 08:16:23,929 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 548 transitions. Word has length 138 [2024-12-02 08:16:23,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:16:23,930 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 548 transitions. [2024-12-02 08:16:23,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:16:23,930 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 548 transitions. [2024-12-02 08:16:23,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-12-02 08:16:23,931 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:16:23,932 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:16:23,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-02 08:16:24,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:16:24,132 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:16:24,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:16:24,133 INFO L85 PathProgramCache]: Analyzing trace with hash 947171300, now seen corresponding path program 1 times [2024-12-02 08:16:24,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:16:24,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1925384187] [2024-12-02 08:16:24,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:16:24,133 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 [2024-12-02 08:16:24,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:16:24,134 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-02 08:16:24,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-02 08:16:24,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:16:24,747 INFO L256 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-12-02 08:16:24,753 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:16:24,955 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 [2024-12-02 08:16:25,327 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 [2024-12-02 08:16:25,835 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:16:25,835 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 140 treesize of output 67 [2024-12-02 08:16:26,099 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:16:26,099 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 140 treesize of output 67 [2024-12-02 08:16:26,454 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:16:26,454 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 140 treesize of output 67 [2024-12-02 08:16:26,720 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:16:26,720 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 157 treesize of output 80 [2024-12-02 08:16:26,871 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:16:26,872 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 146 treesize of output 83 [2024-12-02 08:16:27,029 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:16:27,029 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 150 treesize of output 83 [2024-12-02 08:16:27,274 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:16:27,274 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 185 treesize of output 65 [2024-12-02 08:16:27,406 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 32 proven. 180 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-12-02 08:16:27,406 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:16:27,891 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 08:16:27,891 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:16:27,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1925384187] [2024-12-02 08:16:27,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1925384187] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:16:27,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:16:27,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14] total 18 [2024-12-02 08:16:27,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654296941] [2024-12-02 08:16:27,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:16:27,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:16:27,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:16:27,892 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:16:27,892 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2024-12-02 08:16:27,893 INFO L87 Difference]: Start difference. First operand 415 states and 548 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:16:30,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:16:30,256 INFO L93 Difference]: Finished difference Result 936 states and 1230 transitions. [2024-12-02 08:16:30,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:16:30,257 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 138 [2024-12-02 08:16:30,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:16:30,259 INFO L225 Difference]: With dead ends: 936 [2024-12-02 08:16:30,259 INFO L226 Difference]: Without dead ends: 524 [2024-12-02 08:16:30,259 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2024-12-02 08:16:30,260 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 91 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:16:30,260 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 335 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 08:16:30,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2024-12-02 08:16:30,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 259. [2024-12-02 08:16:30,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 237 states have (on average 1.2869198312236287) internal successors, (305), 238 states have internal predecessors, (305), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 08:16:30,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 337 transitions. [2024-12-02 08:16:30,274 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 337 transitions. Word has length 138 [2024-12-02 08:16:30,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:16:30,275 INFO L471 AbstractCegarLoop]: Abstraction has 259 states and 337 transitions. [2024-12-02 08:16:30,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:16:30,275 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 337 transitions. [2024-12-02 08:16:30,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-12-02 08:16:30,275 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:16:30,276 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:16:30,285 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-02 08:16:30,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:16:30,476 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:16:30,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:16:30,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1205336738, now seen corresponding path program 1 times [2024-12-02 08:16:30,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:16:30,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [643287291] [2024-12-02 08:16:30,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:16:30,477 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 [2024-12-02 08:16:30,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:16:30,478 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-02 08:16:30,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-02 08:16:31,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:16:31,017 INFO L256 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-12-02 08:16:31,022 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:16:31,249 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 [2024-12-02 08:16:31,498 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 80 treesize of output 34 [2024-12-02 08:16:31,622 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 80 treesize of output 34 [2024-12-02 08:16:31,781 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 80 treesize of output 34 [2024-12-02 08:16:31,867 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 153 treesize of output 67 [2024-12-02 08:16:31,947 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:16:31,948 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 127 treesize of output 58 [2024-12-02 08:16:32,042 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:16:32,043 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 131 treesize of output 58 [2024-12-02 08:16:32,267 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:16:32,267 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 166 treesize of output 58 [2024-12-02 08:16:32,466 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 180 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-12-02 08:16:32,466 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:16:32,982 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:16:32,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [643287291] [2024-12-02 08:16:32,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [643287291] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:16:32,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1289564284] [2024-12-02 08:16:32,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:16:32,982 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 08:16:32,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 08:16:32,984 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 08:16:32,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2024-12-02 08:16:34,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:16:34,841 INFO L256 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-12-02 08:16:34,847 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:16:35,037 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 [2024-12-02 08:16:35,619 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 17 [2024-12-02 08:16:35,856 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 17 [2024-12-02 08:16:36,069 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 17 [2024-12-02 08:16:36,283 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 17 [2024-12-02 08:16:36,431 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 17 [2024-12-02 08:16:36,605 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 17 [2024-12-02 08:16:36,652 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:16:36,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 44 [2024-12-02 08:16:36,815 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:16:36,815 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 6 case distinctions, treesize of input 49 treesize of output 46 [2024-12-02 08:16:36,935 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:16:36,936 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 6 case distinctions, treesize of input 49 treesize of output 46 [2024-12-02 08:16:37,049 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:16:37,049 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 42 treesize of output 22 [2024-12-02 08:16:37,136 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 169 proven. 27 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-12-02 08:16:37,136 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:16:37,893 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 12 proven. 27 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-12-02 08:16:37,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1289564284] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:16:37,893 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:16:37,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 7] total 26 [2024-12-02 08:16:37,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167608498] [2024-12-02 08:16:37,893 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:16:37,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-12-02 08:16:37,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:16:37,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-12-02 08:16:37,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=823, Unknown=0, NotChecked=0, Total=930 [2024-12-02 08:16:37,895 INFO L87 Difference]: Start difference. First operand 259 states and 337 transitions. Second operand has 26 states, 24 states have (on average 8.416666666666666) internal successors, (202), 25 states have internal predecessors, (202), 8 states have call successors, (42), 6 states have call predecessors, (42), 7 states have return successors, (42), 6 states have call predecessors, (42), 8 states have call successors, (42) [2024-12-02 08:16:38,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:16:42,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:16:58,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:17:04,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:17:04,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:17:04,621 INFO L93 Difference]: Finished difference Result 890 states and 1157 transitions. [2024-12-02 08:17:04,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-12-02 08:17:04,621 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 8.416666666666666) internal successors, (202), 25 states have internal predecessors, (202), 8 states have call successors, (42), 6 states have call predecessors, (42), 7 states have return successors, (42), 6 states have call predecessors, (42), 8 states have call successors, (42) Word has length 138 [2024-12-02 08:17:04,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:17:04,623 INFO L225 Difference]: With dead ends: 890 [2024-12-02 08:17:04,623 INFO L226 Difference]: Without dead ends: 634 [2024-12-02 08:17:04,624 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 498 GetRequests, 420 SyntacticMatches, 3 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1304 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=945, Invalid=4907, Unknown=0, NotChecked=0, Total=5852 [2024-12-02 08:17:04,625 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 843 mSDsluCounter, 889 mSDsCounter, 0 mSdLazyCounter, 2182 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 843 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 2302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 2182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:17:04,625 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [843 Valid, 972 Invalid, 2302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 2182 Invalid, 0 Unknown, 0 Unchecked, 21.0s Time] [2024-12-02 08:17:04,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2024-12-02 08:17:04,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 465. [2024-12-02 08:17:04,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 410 states have (on average 1.273170731707317) internal successors, (522), 413 states have internal predecessors, (522), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (39), 36 states have call predecessors, (39), 39 states have call successors, (39) [2024-12-02 08:17:04,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 600 transitions. [2024-12-02 08:17:04,685 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 600 transitions. Word has length 138 [2024-12-02 08:17:04,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:17:04,685 INFO L471 AbstractCegarLoop]: Abstraction has 465 states and 600 transitions. [2024-12-02 08:17:04,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 8.416666666666666) internal successors, (202), 25 states have internal predecessors, (202), 8 states have call successors, (42), 6 states have call predecessors, (42), 7 states have return successors, (42), 6 states have call predecessors, (42), 8 states have call successors, (42) [2024-12-02 08:17:04,685 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 600 transitions. [2024-12-02 08:17:04,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-12-02 08:17:04,687 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:17:04,687 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:17:04,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2024-12-02 08:17:04,895 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-02 08:17:05,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:17:05,087 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:17:05,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:17:05,088 INFO L85 PathProgramCache]: Analyzing trace with hash -493577266, now seen corresponding path program 1 times [2024-12-02 08:17:05,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:17:05,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1386028948] [2024-12-02 08:17:05,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:17:05,088 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 [2024-12-02 08:17:05,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:17:05,090 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-02 08:17:05,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-02 08:17:05,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:17:05,598 INFO L256 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-12-02 08:17:05,603 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:17:05,809 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 [2024-12-02 08:17:06,066 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 80 treesize of output 34 [2024-12-02 08:17:06,169 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 80 treesize of output 34 [2024-12-02 08:17:06,304 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 80 treesize of output 34 [2024-12-02 08:17:06,533 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 131 treesize of output 67 [2024-12-02 08:17:06,651 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:17:06,651 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 153 treesize of output 58 [2024-12-02 08:17:06,672 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:17:06,672 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 127 treesize of output 58 [2024-12-02 08:17:06,764 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:17:06,764 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 131 treesize of output 58 [2024-12-02 08:17:06,949 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:17:06,949 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 166 treesize of output 58 [2024-12-02 08:17:07,204 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 192 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-12-02 08:17:07,205 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:17:07,760 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:17:07,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1386028948] [2024-12-02 08:17:07,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1386028948] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:17:07,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1071012767] [2024-12-02 08:17:07,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:17:07,760 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-02 08:17:07,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/cvc4 [2024-12-02 08:17:07,762 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-02 08:17:07,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2024-12-02 08:17:12,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:17:12,884 INFO L256 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 91 conjuncts are in the unsatisfiable core [2024-12-02 08:17:12,894 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:17:13,003 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 [2024-12-02 08:17:15,319 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 62 treesize of output 30 [2024-12-02 08:17:19,078 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:17:19,079 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 1 case distinctions, treesize of input 108 treesize of output 59 [2024-12-02 08:17:19,707 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:17:19,708 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 1 case distinctions, treesize of input 108 treesize of output 59 [2024-12-02 08:17:20,292 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:17:20,292 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 1 case distinctions, treesize of input 108 treesize of output 59 [2024-12-02 08:17:20,910 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 108 treesize of output 59 [2024-12-02 08:17:23,429 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:17:23,430 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 156 treesize of output 90 [2024-12-02 08:17:24,109 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:17:24,109 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 156 treesize of output 90 [2024-12-02 08:17:25,052 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:17:25,052 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 156 treesize of output 90 [2024-12-02 08:17:27,396 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:17:27,397 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 216 treesize of output 126 [2024-12-02 08:17:28,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 36 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 236 treesize of output 155 [2024-12-02 08:17:29,239 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:17:29,239 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 306 treesize of output 187 [2024-12-02 08:17:47,171 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:17:47,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 236 treesize of output 153 [2024-12-02 08:18:20,363 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:18:20,363 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 284 treesize of output 124 [2024-12-02 08:18:26,739 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 172 proven. 72 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-12-02 08:18:26,739 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:19:53,062 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 08:19:53,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1071012767] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:19:53,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:19:53,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [13, 36] total 54 [2024-12-02 08:19:53,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926981844] [2024-12-02 08:19:53,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:19:53,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 08:19:53,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:19:53,064 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 08:19:53,064 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=403, Invalid=2899, Unknown=4, NotChecked=0, Total=3306 [2024-12-02 08:19:53,065 INFO L87 Difference]: Start difference. First operand 465 states and 600 transitions. Second operand has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:20:17,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 08:20:22,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 08:20:26,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 08:20:27,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 08:20:31,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 08:20:35,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 08:20:39,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 08:20:43,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 08:20:47,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 08:20:56,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 08:21:37,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 08:21:40,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 08:22:22,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 08:22:26,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 08:22:42,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-02 08:22:47,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:22:47,565 INFO L93 Difference]: Finished difference Result 1102 states and 1414 transitions. [2024-12-02 08:22:47,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 08:22:47,566 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 138 [2024-12-02 08:22:47,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:22:47,568 INFO L225 Difference]: With dead ends: 1102 [2024-12-02 08:22:47,568 INFO L226 Difference]: Without dead ends: 655 [2024-12-02 08:22:47,570 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 452 GetRequests, 389 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1062 ImplicationChecksByTransitivity, 152.9s TimeCoverageRelationStatistics Valid=462, Invalid=3565, Unknown=5, NotChecked=0, Total=4032 [2024-12-02 08:22:47,570 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 292 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 72 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 149.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 992 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 152.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:22:47,570 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 992 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 712 Invalid, 9 Unknown, 0 Unchecked, 152.3s Time] [2024-12-02 08:22:47,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2024-12-02 08:22:47,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 579. [2024-12-02 08:22:47,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 512 states have (on average 1.26953125) internal successors, (650), 516 states have internal predecessors, (650), 47 states have call successors, (47), 19 states have call predecessors, (47), 19 states have return successors, (47), 43 states have call predecessors, (47), 47 states have call successors, (47) [2024-12-02 08:22:47,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 744 transitions. [2024-12-02 08:22:47,640 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 744 transitions. Word has length 138 [2024-12-02 08:22:47,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:22:47,640 INFO L471 AbstractCegarLoop]: Abstraction has 579 states and 744 transitions. [2024-12-02 08:22:47,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:22:47,640 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 744 transitions. [2024-12-02 08:22:47,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-12-02 08:22:47,642 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:22:47,642 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:22:47,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-02 08:22:47,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2024-12-02 08:22:48,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/cvc4 --incremental --print-success --lang smt [2024-12-02 08:22:48,043 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:22:48,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:22:48,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1773440944, now seen corresponding path program 1 times [2024-12-02 08:22:48,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:22:48,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1038130135] [2024-12-02 08:22:48,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:22:48,044 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 [2024-12-02 08:22:48,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:22:48,045 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-02 08:22:48,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-02 08:22:48,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:22:48,599 INFO L256 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-12-02 08:22:48,604 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:22:49,583 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 19 treesize of output 1 [2024-12-02 08:22:50,423 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 80 treesize of output 34 [2024-12-02 08:22:50,730 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 80 treesize of output 34 [2024-12-02 08:22:51,128 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 80 treesize of output 34 [2024-12-02 08:22:52,046 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:22:52,047 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 131 treesize of output 58 [2024-12-02 08:22:52,512 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:22:52,512 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 156 treesize of output 79 [2024-12-02 08:22:52,828 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:22:52,828 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 145 treesize of output 82 [2024-12-02 08:22:53,223 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:22:53,224 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 149 treesize of output 82 [2024-12-02 08:22:53,626 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:22:53,626 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 184 treesize of output 64 [2024-12-02 08:22:53,947 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 192 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-12-02 08:22:53,947 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:22:55,950 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 08:22:55,951 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:22:55,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1038130135] [2024-12-02 08:22:55,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1038130135] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:22:55,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:22:55,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 17 [2024-12-02 08:22:55,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051277628] [2024-12-02 08:22:55,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:22:55,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:22:55,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:22:55,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:22:55,952 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:22:55,953 INFO L87 Difference]: Start difference. First operand 579 states and 744 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:23:01,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:23:01,996 INFO L93 Difference]: Finished difference Result 1324 states and 1697 transitions. [2024-12-02 08:23:01,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:23:01,998 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 138 [2024-12-02 08:23:01,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:23:02,000 INFO L225 Difference]: With dead ends: 1324 [2024-12-02 08:23:02,000 INFO L226 Difference]: Without dead ends: 763 [2024-12-02 08:23:02,001 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2024-12-02 08:23:02,001 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 94 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:23:02,001 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 400 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-12-02 08:23:02,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2024-12-02 08:23:02,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 619. [2024-12-02 08:23:02,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 552 states have (on average 1.2717391304347827) internal successors, (702), 556 states have internal predecessors, (702), 47 states have call successors, (47), 19 states have call predecessors, (47), 19 states have return successors, (47), 43 states have call predecessors, (47), 47 states have call successors, (47) [2024-12-02 08:23:02,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 796 transitions. [2024-12-02 08:23:02,049 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 796 transitions. Word has length 138 [2024-12-02 08:23:02,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:23:02,049 INFO L471 AbstractCegarLoop]: Abstraction has 619 states and 796 transitions. [2024-12-02 08:23:02,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:23:02,049 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 796 transitions. [2024-12-02 08:23:02,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-12-02 08:23:02,050 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:23:02,050 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:23:02,059 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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)] Ended with exit code 0 [2024-12-02 08:23:02,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:23:02,251 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:23:02,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:23:02,251 INFO L85 PathProgramCache]: Analyzing trace with hash 2093553559, now seen corresponding path program 1 times [2024-12-02 08:23:02,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:23:02,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [426167601] [2024-12-02 08:23:02,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:23:02,252 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 [2024-12-02 08:23:02,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:23:02,253 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-02 08:23:02,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-02 08:23:02,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:23:02,765 INFO L256 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-12-02 08:23:02,770 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:23:02,784 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 [2024-12-02 08:23:03,062 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 [2024-12-02 08:23:03,261 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 25 treesize of output 24 [2024-12-02 08:23:03,718 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:23:03,718 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 40 treesize of output 27 [2024-12-02 08:23:04,007 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:23:04,007 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 40 treesize of output 27 [2024-12-02 08:23:04,305 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:23:04,305 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 40 treesize of output 27 [2024-12-02 08:23:04,694 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:23:04,694 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 40 treesize of output 27 [2024-12-02 08:23:05,192 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:23:05,192 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 40 treesize of output 27 [2024-12-02 08:23:05,307 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:23:05,307 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 62 treesize of output 27 [2024-12-02 08:23:05,530 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:23:05,531 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 53 treesize of output 52 [2024-12-02 08:23:05,937 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:23:05,938 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 63 treesize of output 56 [2024-12-02 08:23:06,270 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:23:06,271 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 74 treesize of output 36 [2024-12-02 08:23:06,951 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-12-02 08:23:06,951 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:23:06,951 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:23:06,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [426167601] [2024-12-02 08:23:06,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [426167601] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:23:06,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:23:06,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 08:23:06,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708205993] [2024-12-02 08:23:06,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:23:06,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 08:23:06,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:23:06,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 08:23:06,952 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:23:06,953 INFO L87 Difference]: Start difference. First operand 619 states and 796 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 08:23:09,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 08:23:23,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:23:23,919 INFO L93 Difference]: Finished difference Result 1560 states and 2010 transitions. [2024-12-02 08:23:23,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:23:23,920 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 138 [2024-12-02 08:23:23,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:23:23,922 INFO L225 Difference]: With dead ends: 1560 [2024-12-02 08:23:23,923 INFO L226 Difference]: Without dead ends: 959 [2024-12-02 08:23:23,923 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:23:23,924 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 203 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:23:23,924 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 516 Invalid, 850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 838 Invalid, 0 Unknown, 0 Unchecked, 16.4s Time] [2024-12-02 08:23:23,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2024-12-02 08:23:23,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 707. [2024-12-02 08:23:23,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 707 states, 640 states have (on average 1.28125) internal successors, (820), 644 states have internal predecessors, (820), 47 states have call successors, (47), 19 states have call predecessors, (47), 19 states have return successors, (47), 43 states have call predecessors, (47), 47 states have call successors, (47) [2024-12-02 08:23:23,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 914 transitions. [2024-12-02 08:23:23,999 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 914 transitions. Word has length 138 [2024-12-02 08:23:23,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:23:23,999 INFO L471 AbstractCegarLoop]: Abstraction has 707 states and 914 transitions. [2024-12-02 08:23:24,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 10 states have internal predecessors, (77), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 08:23:24,000 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 914 transitions. [2024-12-02 08:23:24,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-12-02 08:23:24,001 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:23:24,001 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:23:24,012 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-02 08:23:24,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:23:24,202 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:23:24,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:23:24,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1072485205, now seen corresponding path program 1 times [2024-12-02 08:23:24,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:23:24,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [348058316] [2024-12-02 08:23:24,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:23:24,203 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 [2024-12-02 08:23:24,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:23:24,204 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-02 08:23:24,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-02 08:23:24,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:23:24,727 INFO L256 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-12-02 08:23:24,732 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:23:24,763 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 [2024-12-02 08:23:25,417 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 36 treesize of output 29 [2024-12-02 08:23:26,109 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:23:26,109 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 35 treesize of output 37 [2024-12-02 08:23:27,018 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:23:27,019 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 50 treesize of output 40 [2024-12-02 08:23:27,592 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:23:27,592 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 50 treesize of output 40 [2024-12-02 08:23:28,156 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:23:28,157 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 50 treesize of output 40 [2024-12-02 08:23:28,892 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:23:28,893 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 50 treesize of output 40 [2024-12-02 08:23:29,846 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:23:29,846 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 50 treesize of output 40 [2024-12-02 08:23:30,048 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:23:30,048 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 75 treesize of output 52 [2024-12-02 08:23:31,104 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:23:31,105 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 92 treesize of output 76 [2024-12-02 08:23:34,204 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:23:34,205 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 133 treesize of output 99 [2024-12-02 08:23:37,073 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 211 proven. 33 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-12-02 08:23:37,073 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:23:39,292 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 08:23:39,292 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:23:39,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [348058316] [2024-12-02 08:23:39,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [348058316] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:23:39,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:23:39,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [17] total 23 [2024-12-02 08:23:39,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249732302] [2024-12-02 08:23:39,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:23:39,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:23:39,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:23:39,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:23:39,293 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2024-12-02 08:23:39,293 INFO L87 Difference]: Start difference. First operand 707 states and 914 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:23:41,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:23:42,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:23:52,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:23:52,127 INFO L93 Difference]: Finished difference Result 1924 states and 2469 transitions. [2024-12-02 08:23:52,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:23:52,129 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 138 [2024-12-02 08:23:52,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:23:52,133 INFO L225 Difference]: With dead ends: 1924 [2024-12-02 08:23:52,133 INFO L226 Difference]: Without dead ends: 1235 [2024-12-02 08:23:52,135 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 252 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=175, Invalid=475, Unknown=0, NotChecked=0, Total=650 [2024-12-02 08:23:52,135 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 151 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:23:52,135 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 729 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 12.1s Time] [2024-12-02 08:23:52,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1235 states. [2024-12-02 08:23:52,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1235 to 654. [2024-12-02 08:23:52,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 601 states have (on average 1.2795341098169717) internal successors, (769), 603 states have internal predecessors, (769), 37 states have call successors, (37), 15 states have call predecessors, (37), 15 states have return successors, (37), 35 states have call predecessors, (37), 37 states have call successors, (37) [2024-12-02 08:23:52,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 843 transitions. [2024-12-02 08:23:52,212 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 843 transitions. Word has length 138 [2024-12-02 08:23:52,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:23:52,212 INFO L471 AbstractCegarLoop]: Abstraction has 654 states and 843 transitions. [2024-12-02 08:23:52,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:23:52,212 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 843 transitions. [2024-12-02 08:23:52,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-12-02 08:23:52,214 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:23:52,214 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:23:52,225 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-02 08:23:52,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:23:52,414 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:23:52,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:23:52,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1291339923, now seen corresponding path program 1 times [2024-12-02 08:23:52,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:23:52,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1133589760] [2024-12-02 08:23:52,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:23:52,415 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 [2024-12-02 08:23:52,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:23:52,417 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-02 08:23:52,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-02 08:23:52,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:23:52,933 INFO L256 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 57 conjuncts are in the unsatisfiable core [2024-12-02 08:23:52,939 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:23:52,954 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 [2024-12-02 08:23:53,350 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 31 treesize of output 15 [2024-12-02 08:23:54,149 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:23:54,149 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 42 treesize of output 29 [2024-12-02 08:23:54,512 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:23:54,513 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 42 treesize of output 29 [2024-12-02 08:23:54,785 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:23:54,785 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 42 treesize of output 29 [2024-12-02 08:23:55,066 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:23:55,066 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 42 treesize of output 29 [2024-12-02 08:23:55,438 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:23:55,438 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 42 treesize of output 29 [2024-12-02 08:23:55,950 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:23:55,950 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 42 treesize of output 29 [2024-12-02 08:23:56,062 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:23:56,062 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 70 treesize of output 53 [2024-12-02 08:23:57,055 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:23:57,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 121 treesize of output 96 [2024-12-02 08:23:59,247 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:23:59,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 167 treesize of output 112 [2024-12-02 08:24:00,269 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 156 proven. 57 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2024-12-02 08:24:00,269 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:24:04,317 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 08:24:04,318 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:24:04,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1133589760] [2024-12-02 08:24:04,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1133589760] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:24:04,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:24:04,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [18] total 28 [2024-12-02 08:24:04,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892024052] [2024-12-02 08:24:04,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:24:04,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 08:24:04,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:24:04,319 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 08:24:04,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=622, Unknown=0, NotChecked=0, Total=756 [2024-12-02 08:24:04,320 INFO L87 Difference]: Start difference. First operand 654 states and 843 transitions. Second operand has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:24:23,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:24:23,264 INFO L93 Difference]: Finished difference Result 1777 states and 2281 transitions. [2024-12-02 08:24:23,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 08:24:23,266 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 138 [2024-12-02 08:24:23,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:24:23,268 INFO L225 Difference]: With dead ends: 1777 [2024-12-02 08:24:23,269 INFO L226 Difference]: Without dead ends: 1126 [2024-12-02 08:24:23,269 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=219, Invalid=1041, Unknown=0, NotChecked=0, Total=1260 [2024-12-02 08:24:23,270 INFO L435 NwaCegarLoop]: 183 mSDtfsCounter, 334 mSDsluCounter, 1067 mSDsCounter, 0 mSdLazyCounter, 1222 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 1259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:24:23,270 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 1250 Invalid, 1259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1222 Invalid, 0 Unknown, 0 Unchecked, 16.7s Time] [2024-12-02 08:24:23,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2024-12-02 08:24:23,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 708. [2024-12-02 08:24:23,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 655 states have (on average 1.283969465648855) internal successors, (841), 657 states have internal predecessors, (841), 37 states have call successors, (37), 15 states have call predecessors, (37), 15 states have return successors, (37), 35 states have call predecessors, (37), 37 states have call successors, (37) [2024-12-02 08:24:23,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 915 transitions. [2024-12-02 08:24:23,346 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 915 transitions. Word has length 138 [2024-12-02 08:24:23,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:24:23,346 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 915 transitions. [2024-12-02 08:24:23,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:24:23,346 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 915 transitions. [2024-12-02 08:24:23,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-12-02 08:24:23,348 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:24:23,348 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:24:23,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-02 08:24:23,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:24:23,549 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:24:23,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:24:23,549 INFO L85 PathProgramCache]: Analyzing trace with hash -2060865127, now seen corresponding path program 1 times [2024-12-02 08:24:23,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:24:23,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [352678417] [2024-12-02 08:24:23,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:24:23,550 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 [2024-12-02 08:24:23,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:24:23,551 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-02 08:24:23,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-02 08:24:24,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:24:24,115 INFO L256 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-12-02 08:24:24,119 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:24:24,148 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 [2024-12-02 08:24:24,490 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 08:24:24,669 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 08:24:24,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 08:24:24,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 08:24:25,143 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 08:24:25,333 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 08:24:25,581 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 08:24:25,640 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 53 treesize of output 15 [2024-12-02 08:24:26,039 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:24:26,039 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 56 treesize of output 55 [2024-12-02 08:24:27,475 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:24:27,475 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 112 treesize of output 75 [2024-12-02 08:24:27,670 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:24:27,671 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 123 treesize of output 53 [2024-12-02 08:24:33,822 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 105 proven. 33 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2024-12-02 08:24:33,822 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:24:39,201 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 08:24:39,201 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:24:39,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [352678417] [2024-12-02 08:24:39,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [352678417] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:24:39,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:24:39,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 19 [2024-12-02 08:24:39,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089811537] [2024-12-02 08:24:39,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:24:39,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:24:39,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:24:39,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:24:39,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2024-12-02 08:24:39,203 INFO L87 Difference]: Start difference. First operand 708 states and 915 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:24:48,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:24:48,429 INFO L93 Difference]: Finished difference Result 1835 states and 2357 transitions. [2024-12-02 08:24:48,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:24:48,430 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 138 [2024-12-02 08:24:48,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:24:48,433 INFO L225 Difference]: With dead ends: 1835 [2024-12-02 08:24:48,434 INFO L226 Difference]: Without dead ends: 1130 [2024-12-02 08:24:48,434 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 14.3s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2024-12-02 08:24:48,435 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 284 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2024-12-02 08:24:48,435 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 604 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2024-12-02 08:24:48,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1130 states. [2024-12-02 08:24:48,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1130 to 726. [2024-12-02 08:24:48,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 673 states have (on average 1.276374442793462) internal successors, (859), 675 states have internal predecessors, (859), 37 states have call successors, (37), 15 states have call predecessors, (37), 15 states have return successors, (37), 35 states have call predecessors, (37), 37 states have call successors, (37) [2024-12-02 08:24:48,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 933 transitions. [2024-12-02 08:24:48,495 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 933 transitions. Word has length 138 [2024-12-02 08:24:48,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:24:48,495 INFO L471 AbstractCegarLoop]: Abstraction has 726 states and 933 transitions. [2024-12-02 08:24:48,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:24:48,496 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 933 transitions. [2024-12-02 08:24:48,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-12-02 08:24:48,497 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:24:48,497 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:24:48,508 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-02 08:24:48,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:24:48,698 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:24:48,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:24:48,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1213033815, now seen corresponding path program 1 times [2024-12-02 08:24:48,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:24:48,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1687711270] [2024-12-02 08:24:48,699 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:24:48,699 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 [2024-12-02 08:24:48,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:24:48,700 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-02 08:24:48,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-02 08:24:49,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:24:49,210 INFO L256 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-12-02 08:24:49,214 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:24:49,227 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 [2024-12-02 08:24:49,241 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 [2024-12-02 08:24:49,254 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 [2024-12-02 08:24:49,267 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 [2024-12-02 08:24:49,281 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 [2024-12-02 08:24:49,294 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 [2024-12-02 08:24:49,308 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 44 treesize of output 22 [2024-12-02 08:24:49,465 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:24:49,465 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 40 treesize of output 45 [2024-12-02 08:24:49,701 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:24:49,701 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 55 treesize of output 48 [2024-12-02 08:24:49,925 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:24:49,925 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 55 treesize of output 23 [2024-12-02 08:24:50,258 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 08:24:50,258 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:24:50,259 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:24:50,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1687711270] [2024-12-02 08:24:50,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1687711270] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:24:50,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:24:50,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 08:24:50,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030014079] [2024-12-02 08:24:50,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:24:50,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 08:24:50,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:24:50,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 08:24:50,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:24:50,260 INFO L87 Difference]: Start difference. First operand 726 states and 933 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:24:51,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:24:54,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:24:55,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:25:03,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:25:03,533 INFO L93 Difference]: Finished difference Result 1738 states and 2216 transitions. [2024-12-02 08:25:03,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:25:03,534 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 138 [2024-12-02 08:25:03,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:25:03,536 INFO L225 Difference]: With dead ends: 1738 [2024-12-02 08:25:03,536 INFO L226 Difference]: Without dead ends: 1015 [2024-12-02 08:25:03,537 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:25:03,537 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 171 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 856 SdHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2024-12-02 08:25:03,537 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 856 Invalid, 830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 819 Invalid, 0 Unknown, 0 Unchecked, 12.8s Time] [2024-12-02 08:25:03,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2024-12-02 08:25:03,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 743. [2024-12-02 08:25:03,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 743 states, 682 states have (on average 1.2697947214076246) internal successors, (866), 685 states have internal predecessors, (866), 41 states have call successors, (41), 19 states have call predecessors, (41), 19 states have return successors, (41), 38 states have call predecessors, (41), 41 states have call successors, (41) [2024-12-02 08:25:03,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 948 transitions. [2024-12-02 08:25:03,595 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 948 transitions. Word has length 138 [2024-12-02 08:25:03,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:25:03,596 INFO L471 AbstractCegarLoop]: Abstraction has 743 states and 948 transitions. [2024-12-02 08:25:03,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 08:25:03,596 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 948 transitions. [2024-12-02 08:25:03,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-12-02 08:25:03,598 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:25:03,598 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:25:03,609 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-02 08:25:03,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:25:03,799 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:25:03,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:25:03,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1842010409, now seen corresponding path program 1 times [2024-12-02 08:25:03,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:25:03,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1222338903] [2024-12-02 08:25:03,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:25:03,800 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 [2024-12-02 08:25:03,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:25:03,801 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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) [2024-12-02 08:25:03,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a112be7c-d5d4-4d2e-a2c1-97ddc3ab3ec0/bin/uautomizer-verify-84ZbGMXZE1/mathsat -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 [2024-12-02 08:25:04,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:25:04,363 INFO L256 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-12-02 08:25:04,369 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:25:04,388 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 [2024-12-02 08:25:04,748 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-12-02 08:25:04,941 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 26 treesize of output 25 [2024-12-02 08:25:05,439 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:25:05,439 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 41 treesize of output 28 [2024-12-02 08:25:05,719 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:25:05,719 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 41 treesize of output 28 [2024-12-02 08:25:05,996 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:25:05,996 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 41 treesize of output 28 [2024-12-02 08:25:06,374 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:25:06,374 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 41 treesize of output 28 [2024-12-02 08:25:06,861 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:25:06,861 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 41 treesize of output 28 [2024-12-02 08:25:06,968 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:25:06,968 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 69 treesize of output 61 [2024-12-02 08:25:07,900 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:25:07,900 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 110 treesize of output 91 [2024-12-02 08:25:10,180 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:25:10,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 157 treesize of output 114 [2024-12-02 08:25:11,644 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 08:25:11,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 198 treesize of output 88 [2024-12-02 08:25:11,647 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 201 proven. 33 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-12-02 08:25:11,647 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:25:15,464 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 08:25:15,464 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:25:15,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1222338903] [2024-12-02 08:25:15,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1222338903] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:25:15,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:25:15,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [15] total 25 [2024-12-02 08:25:15,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710856018] [2024-12-02 08:25:15,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:25:15,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 08:25:15,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:25:15,465 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 08:25:15,466 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=483, Unknown=0, NotChecked=0, Total=600 [2024-12-02 08:25:15,466 INFO L87 Difference]: Start difference. First operand 743 states and 948 transitions. Second operand has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14)