./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-1.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_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 318749465d360586bbf5c93b0a7c91860553b05314b1354647f65a52d19907b5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:26:17,131 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:26:17,232 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:26:17,241 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:26:17,241 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:26:17,284 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:26:17,285 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:26:17,286 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:26:17,286 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:26:17,286 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:26:17,287 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:26:17,288 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:26:17,288 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:26:17,288 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:26:17,289 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:26:17,289 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:26:17,290 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:26:17,290 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:26:17,290 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:26:17,290 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:26:17,290 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:26:17,290 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:26:17,290 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:26:17,290 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:26:17,291 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:26:17,291 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:26:17,291 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:26:17,291 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:26:17,291 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:26:17,291 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:26:17,291 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:26:17,291 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:26:17,292 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:26:17,293 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:26:17,293 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:26:17,293 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:26:17,293 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:26:17,293 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:26:17,293 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:26:17,293 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:26:17,294 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:26:17,294 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:26:17,294 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:26:17,294 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:26:17,294 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:26:17,294 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:26:17,294 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:26:17,295 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:26:17,295 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_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 318749465d360586bbf5c93b0a7c91860553b05314b1354647f65a52d19907b5 [2024-11-28 03:26:17,615 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:26:17,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:26:17,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:26:17,638 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:26:17,639 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:26:17,642 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-1.i [2024-11-28 03:26:20,708 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/data/992b30fe6/0bc87e01d0a14466b7a088ed8808eae8/FLAG47ad51fcf [2024-11-28 03:26:21,009 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:26:21,014 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-1.i [2024-11-28 03:26:21,044 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/data/992b30fe6/0bc87e01d0a14466b7a088ed8808eae8/FLAG47ad51fcf [2024-11-28 03:26:21,076 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/data/992b30fe6/0bc87e01d0a14466b7a088ed8808eae8 [2024-11-28 03:26:21,079 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:26:21,081 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:26:21,083 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:26:21,083 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:26:21,091 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:26:21,092 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:26:21" (1/1) ... [2024-11-28 03:26:21,093 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a4a366 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:21, skipping insertion in model container [2024-11-28 03:26:21,093 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:26:21" (1/1) ... [2024-11-28 03:26:21,122 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:26:21,314 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_5ca487a6-c5b5-49af-989d-89ecfe772b06/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-1.i[915,928] [2024-11-28 03:26:21,400 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:26:21,411 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:26:21,429 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_5ca487a6-c5b5-49af-989d-89ecfe772b06/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-1.i[915,928] [2024-11-28 03:26:21,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:26:21,541 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:26:21,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:21 WrapperNode [2024-11-28 03:26:21,543 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:26:21,545 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:26:21,545 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:26:21,545 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:26:21,555 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:21" (1/1) ... [2024-11-28 03:26:21,570 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:21" (1/1) ... [2024-11-28 03:26:21,639 INFO L138 Inliner]: procedures = 30, calls = 153, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 483 [2024-11-28 03:26:21,640 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:26:21,641 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:26:21,641 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:26:21,641 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:26:21,655 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:21" (1/1) ... [2024-11-28 03:26:21,655 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:21" (1/1) ... [2024-11-28 03:26:21,666 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:21" (1/1) ... [2024-11-28 03:26:21,679 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-28 03:26:21,683 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:21" (1/1) ... [2024-11-28 03:26:21,683 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:21" (1/1) ... [2024-11-28 03:26:21,716 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:21" (1/1) ... [2024-11-28 03:26:21,717 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:21" (1/1) ... [2024-11-28 03:26:21,723 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:21" (1/1) ... [2024-11-28 03:26:21,729 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:21" (1/1) ... [2024-11-28 03:26:21,731 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:21" (1/1) ... [2024-11-28 03:26:21,740 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:26:21,744 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:26:21,746 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:26:21,746 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:26:21,747 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:21" (1/1) ... [2024-11-28 03:26:21,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:26:21,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:21,786 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:26:21,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:26:21,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:26:21,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-28 03:26:21,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-28 03:26:21,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-28 03:26:21,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-28 03:26:21,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-28 03:26:21,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-28 03:26:21,825 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:26:21,825 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:26:21,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 03:26:21,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:26:21,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:26:21,935 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:26:21,937 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:26:22,763 INFO L? ?]: Removed 127 outVars from TransFormulas that were not future-live. [2024-11-28 03:26:22,763 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:26:22,786 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:26:22,787 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:26:22,787 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:26:22 BoogieIcfgContainer [2024-11-28 03:26:22,788 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:26:22,792 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:26:22,793 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:26:22,800 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:26:22,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:26:21" (1/3) ... [2024-11-28 03:26:22,802 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e368c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:26:22, skipping insertion in model container [2024-11-28 03:26:22,802 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:21" (2/3) ... [2024-11-28 03:26:22,804 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e368c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:26:22, skipping insertion in model container [2024-11-28 03:26:22,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:26:22" (3/3) ... [2024-11-28 03:26:22,805 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-1.i [2024-11-28 03:26:22,847 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:26:22,849 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-1.i that has 2 procedures, 109 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:26:22,923 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:26:22,940 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;@3ad01cc6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:26:22,940 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:26:22,947 INFO L276 IsEmpty]: Start isEmpty. Operand has 109 states, 92 states have (on average 1.423913043478261) internal successors, (131), 93 states have internal predecessors, (131), 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) [2024-11-28 03:26:22,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-28 03:26:22,965 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:22,966 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] [2024-11-28 03:26:22,966 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:26:22,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:22,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1308387142, now seen corresponding path program 1 times [2024-11-28 03:26:22,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:22,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903635504] [2024-11-28 03:26:22,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:22,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:23,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:23,488 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-11-28 03:26:23,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:26:23,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903635504] [2024-11-28 03:26:23,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903635504] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:26:23,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [612955162] [2024-11-28 03:26:23,490 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:23,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:23,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:23,501 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:26:23,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:26:23,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:23,886 INFO L256 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:26:23,897 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:23,945 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-11-28 03:26:23,945 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:26:23,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [612955162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:26:23,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:26:23,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 03:26:23,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366635818] [2024-11-28 03:26:23,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:26:23,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:26:23,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:26:23,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:26:23,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:26:23,995 INFO L87 Difference]: Start difference. First operand has 109 states, 92 states have (on average 1.423913043478261) internal successors, (131), 93 states have internal predecessors, (131), 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 30.0) internal successors, (60), 2 states have internal predecessors, (60), 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) [2024-11-28 03:26:24,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:24,049 INFO L93 Difference]: Finished difference Result 211 states and 326 transitions. [2024-11-28 03:26:24,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:26:24,054 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (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 125 [2024-11-28 03:26:24,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:24,066 INFO L225 Difference]: With dead ends: 211 [2024-11-28 03:26:24,066 INFO L226 Difference]: Without dead ends: 105 [2024-11-28 03:26:24,072 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:26:24,078 INFO L435 NwaCegarLoop]: 152 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, 152 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:24,079 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:26:24,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-11-28 03:26:24,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2024-11-28 03:26:24,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 89 states have (on average 1.3932584269662922) internal successors, (124), 89 states have internal predecessors, (124), 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) [2024-11-28 03:26:24,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 152 transitions. [2024-11-28 03:26:24,151 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 152 transitions. Word has length 125 [2024-11-28 03:26:24,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:24,151 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 152 transitions. [2024-11-28 03:26:24,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (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) [2024-11-28 03:26:24,152 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 152 transitions. [2024-11-28 03:26:24,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-28 03:26:24,156 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:24,157 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] [2024-11-28 03:26:24,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 03:26:24,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 03:26:24,358 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:26:24,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:24,359 INFO L85 PathProgramCache]: Analyzing trace with hash 765665310, now seen corresponding path program 1 times [2024-11-28 03:26:24,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:24,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124129814] [2024-11-28 03:26:24,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:24,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:24,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:25,001 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:26:25,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:26:25,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124129814] [2024-11-28 03:26:25,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124129814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:26:25,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:26:25,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:26:25,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216060389] [2024-11-28 03:26:25,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:26:25,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:26:25,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:26:25,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:26:25,007 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:26:25,008 INFO L87 Difference]: Start difference. First operand 105 states and 152 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-28 03:26:25,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:25,096 INFO L93 Difference]: Finished difference Result 209 states and 304 transitions. [2024-11-28 03:26:25,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:26:25,096 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 125 [2024-11-28 03:26:25,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:25,098 INFO L225 Difference]: With dead ends: 209 [2024-11-28 03:26:25,098 INFO L226 Difference]: Without dead ends: 107 [2024-11-28 03:26:25,099 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:26:25,103 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 0 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:25,103 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 439 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:26:25,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-28 03:26:25,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2024-11-28 03:26:25,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 91 states have (on average 1.3846153846153846) internal successors, (126), 91 states have internal predecessors, (126), 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) [2024-11-28 03:26:25,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 154 transitions. [2024-11-28 03:26:25,132 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 154 transitions. Word has length 125 [2024-11-28 03:26:25,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:25,133 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 154 transitions. [2024-11-28 03:26:25,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-28 03:26:25,134 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 154 transitions. [2024-11-28 03:26:25,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-28 03:26:25,136 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:25,136 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] [2024-11-28 03:26:25,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:26:25,141 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:26:25,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:25,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1662593312, now seen corresponding path program 1 times [2024-11-28 03:26:25,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:25,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636536587] [2024-11-28 03:26:25,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:25,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:25,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:25,647 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:26:25,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:26:25,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636536587] [2024-11-28 03:26:25,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636536587] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:26:25,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:26:25,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:26:25,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453105678] [2024-11-28 03:26:25,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:26:25,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:26:25,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:26:25,655 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:26:25,655 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:26:25,655 INFO L87 Difference]: Start difference. First operand 107 states and 154 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-11-28 03:26:25,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:25,735 INFO L93 Difference]: Finished difference Result 214 states and 309 transitions. [2024-11-28 03:26:25,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:26:25,736 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 125 [2024-11-28 03:26:25,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:25,740 INFO L225 Difference]: With dead ends: 214 [2024-11-28 03:26:25,742 INFO L226 Difference]: Without dead ends: 110 [2024-11-28 03:26:25,743 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:26:25,744 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 1 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:25,747 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 436 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:26:25,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-28 03:26:25,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 109. [2024-11-28 03:26:25,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 93 states have (on average 1.3763440860215055) internal successors, (128), 93 states have internal predecessors, (128), 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) [2024-11-28 03:26:25,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 156 transitions. [2024-11-28 03:26:25,772 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 156 transitions. Word has length 125 [2024-11-28 03:26:25,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:25,773 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 156 transitions. [2024-11-28 03:26:25,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-11-28 03:26:25,773 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 156 transitions. [2024-11-28 03:26:25,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-28 03:26:25,779 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:25,779 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] [2024-11-28 03:26:25,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:26:25,781 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:26:25,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:25,782 INFO L85 PathProgramCache]: Analyzing trace with hash 112414050, now seen corresponding path program 1 times [2024-11-28 03:26:25,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:25,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370917412] [2024-11-28 03:26:25,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:25,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:25,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:26,157 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:26:26,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:26:26,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370917412] [2024-11-28 03:26:26,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370917412] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:26:26,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:26:26,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:26:26,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761668250] [2024-11-28 03:26:26,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:26:26,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:26:26,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:26:26,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:26:26,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:26:26,164 INFO L87 Difference]: Start difference. First operand 109 states and 156 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-11-28 03:26:26,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:26,215 INFO L93 Difference]: Finished difference Result 218 states and 313 transitions. [2024-11-28 03:26:26,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:26:26,217 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 125 [2024-11-28 03:26:26,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:26,218 INFO L225 Difference]: With dead ends: 218 [2024-11-28 03:26:26,219 INFO L226 Difference]: Without dead ends: 112 [2024-11-28 03:26:26,219 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:26:26,223 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 1 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 439 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 [2024-11-28 03:26:26,223 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 439 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:26:26,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-28 03:26:26,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 111. [2024-11-28 03:26:26,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 95 states have (on average 1.368421052631579) internal successors, (130), 95 states have internal predecessors, (130), 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) [2024-11-28 03:26:26,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 158 transitions. [2024-11-28 03:26:26,245 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 158 transitions. Word has length 125 [2024-11-28 03:26:26,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:26,246 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 158 transitions. [2024-11-28 03:26:26,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-11-28 03:26:26,246 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 158 transitions. [2024-11-28 03:26:26,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-28 03:26:26,252 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:26,253 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] [2024-11-28 03:26:26,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:26:26,253 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:26:26,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:26,254 INFO L85 PathProgramCache]: Analyzing trace with hash 114261092, now seen corresponding path program 1 times [2024-11-28 03:26:26,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:26,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726080866] [2024-11-28 03:26:26,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:26,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:26,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:28,456 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:26:28,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:26:28,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726080866] [2024-11-28 03:26:28,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726080866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:26:28,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:26:28,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:26:28,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137666237] [2024-11-28 03:26:28,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:26:28,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:26:28,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:26:28,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:26:28,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:26:28,460 INFO L87 Difference]: Start difference. First operand 111 states and 158 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-28 03:26:29,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:29,387 INFO L93 Difference]: Finished difference Result 300 states and 427 transitions. [2024-11-28 03:26:29,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:26:29,388 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (14), 1 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 125 [2024-11-28 03:26:29,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:29,390 INFO L225 Difference]: With dead ends: 300 [2024-11-28 03:26:29,390 INFO L226 Difference]: Without dead ends: 192 [2024-11-28 03:26:29,391 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:26:29,391 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 100 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:29,393 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 608 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:26:29,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-11-28 03:26:29,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 189. [2024-11-28 03:26:29,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 169 states have (on average 1.3905325443786982) internal successors, (235), 170 states have internal predecessors, (235), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 03:26:29,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 269 transitions. [2024-11-28 03:26:29,426 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 269 transitions. Word has length 125 [2024-11-28 03:26:29,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:29,428 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 269 transitions. [2024-11-28 03:26:29,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-28 03:26:29,429 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 269 transitions. [2024-11-28 03:26:29,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-28 03:26:29,433 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:29,433 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] [2024-11-28 03:26:29,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:26:29,433 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:26:29,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:29,437 INFO L85 PathProgramCache]: Analyzing trace with hash 254809702, now seen corresponding path program 1 times [2024-11-28 03:26:29,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:29,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299055838] [2024-11-28 03:26:29,437 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:29,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:29,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:30,811 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 21 proven. 18 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-28 03:26:30,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:26:30,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299055838] [2024-11-28 03:26:30,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299055838] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:26:30,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482870487] [2024-11-28 03:26:30,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:30,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:30,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:30,815 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:26:30,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:26:31,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:31,181 INFO L256 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 03:26:31,189 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:31,336 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 29 treesize of output 13 [2024-11-28 03:26:31,396 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 29 treesize of output 13 [2024-11-28 03:26:31,493 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 13 [2024-11-28 03:26:31,522 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:26:31,522 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 31 treesize of output 33 [2024-11-28 03:26:31,586 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:26:31,587 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 46 treesize of output 36 [2024-11-28 03:26:31,642 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:26:31,642 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 12 [2024-11-28 03:26:31,650 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 195 proven. 18 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2024-11-28 03:26:31,650 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:26:32,047 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 21 proven. 18 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-28 03:26:32,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [482870487] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:26:32,048 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:26:32,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 7] total 12 [2024-11-28 03:26:32,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678413187] [2024-11-28 03:26:32,048 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:26:32,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:26:32,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:26:32,055 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:26:32,055 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:26:32,056 INFO L87 Difference]: Start difference. First operand 189 states and 269 transitions. Second operand has 12 states, 9 states have (on average 8.222222222222221) internal successors, (74), 12 states have internal predecessors, (74), 5 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (22), 2 states have call predecessors, (22), 5 states have call successors, (22) [2024-11-28 03:26:33,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:33,449 INFO L93 Difference]: Finished difference Result 424 states and 597 transitions. [2024-11-28 03:26:33,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:26:33,450 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 8.222222222222221) internal successors, (74), 12 states have internal predecessors, (74), 5 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (22), 2 states have call predecessors, (22), 5 states have call successors, (22) Word has length 125 [2024-11-28 03:26:33,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:33,453 INFO L225 Difference]: With dead ends: 424 [2024-11-28 03:26:33,457 INFO L226 Difference]: Without dead ends: 238 [2024-11-28 03:26:33,458 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 245 SyntacticMatches, 6 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2024-11-28 03:26:33,459 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 385 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:33,461 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 406 Invalid, 764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 03:26:33,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2024-11-28 03:26:33,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 233. [2024-11-28 03:26:33,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 203 states have (on average 1.3596059113300492) internal successors, (276), 205 states have internal predecessors, (276), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (24), 22 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-28 03:26:33,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 324 transitions. [2024-11-28 03:26:33,500 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 324 transitions. Word has length 125 [2024-11-28 03:26:33,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:33,500 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 324 transitions. [2024-11-28 03:26:33,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 8.222222222222221) internal successors, (74), 12 states have internal predecessors, (74), 5 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (22), 2 states have call predecessors, (22), 5 states have call successors, (22) [2024-11-28 03:26:33,501 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 324 transitions. [2024-11-28 03:26:33,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-28 03:26:33,502 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:33,503 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] [2024-11-28 03:26:33,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 03:26:33,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:33,704 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:26:33,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:33,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1434134040, now seen corresponding path program 1 times [2024-11-28 03:26:33,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:33,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373635202] [2024-11-28 03:26:33,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:33,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:33,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:26:33,845 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:26:33,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:26:33,997 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:26:33,998 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:26:33,999 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 03:26:34,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:26:34,005 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:34,067 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:26:34,071 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:26:34 BoogieIcfgContainer [2024-11-28 03:26:34,071 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:26:34,072 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:26:34,072 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:26:34,073 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:26:34,073 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:26:22" (3/4) ... [2024-11-28 03:26:34,076 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 03:26:34,077 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:26:34,078 INFO L158 Benchmark]: Toolchain (without parser) took 12997.20ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 119.1MB in the beginning and 173.8MB in the end (delta: -54.7MB). Peak memory consumption was 228.5MB. Max. memory is 16.1GB. [2024-11-28 03:26:34,079 INFO L158 Benchmark]: CDTParser took 1.08ms. Allocated memory is still 142.6MB. Free memory is still 80.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:26:34,079 INFO L158 Benchmark]: CACSL2BoogieTranslator took 461.08ms. Allocated memory is still 142.6MB. Free memory was 118.8MB in the beginning and 103.1MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:26:34,080 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.15ms. Allocated memory is still 142.6MB. Free memory was 102.8MB in the beginning and 99.2MB in the end (delta: 3.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:26:34,080 INFO L158 Benchmark]: Boogie Preprocessor took 103.07ms. Allocated memory is still 142.6MB. Free memory was 99.2MB in the beginning and 96.1MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:26:34,080 INFO L158 Benchmark]: RCFGBuilder took 1043.40ms. Allocated memory is still 142.6MB. Free memory was 95.9MB in the beginning and 64.6MB in the end (delta: 31.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 03:26:34,081 INFO L158 Benchmark]: TraceAbstraction took 11279.19ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 63.9MB in the beginning and 178.1MB in the end (delta: -114.1MB). Peak memory consumption was 169.7MB. Max. memory is 16.1GB. [2024-11-28 03:26:34,081 INFO L158 Benchmark]: Witness Printer took 5.41ms. Allocated memory is still 427.8MB. Free memory was 178.1MB in the beginning and 173.8MB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:26:34,083 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.08ms. Allocated memory is still 142.6MB. Free memory is still 80.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 461.08ms. Allocated memory is still 142.6MB. Free memory was 118.8MB in the beginning and 103.1MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.15ms. Allocated memory is still 142.6MB. Free memory was 102.8MB in the beginning and 99.2MB in the end (delta: 3.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 103.07ms. Allocated memory is still 142.6MB. Free memory was 99.2MB in the beginning and 96.1MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1043.40ms. Allocated memory is still 142.6MB. Free memory was 95.9MB in the beginning and 64.6MB in the end (delta: 31.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 11279.19ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 63.9MB in the beginning and 178.1MB in the end (delta: -114.1MB). Peak memory consumption was 169.7MB. Max. memory is 16.1GB. * Witness Printer took 5.41ms. Allocated memory is still 427.8MB. Free memory was 178.1MB in the beginning and 173.8MB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. 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 89, overapproximation of someBinaryFLOATComparisonOperation at line 57, overapproximation of someBinaryFLOATComparisonOperation at line 91, overapproximation of someBinaryFLOATComparisonOperation at line 115, overapproximation of someBinaryFLOATComparisonOperation at line 115, overapproximation of someBinaryFLOATComparisonOperation at line 91, overapproximation of someBinaryFLOATComparisonOperation at line 93, overapproximation of someBinaryFLOATComparisonOperation at line 89, overapproximation of someBinaryFLOATComparisonOperation at line 93, overapproximation of someBinaryFLOATComparisonOperation at line 115, overapproximation of someUnaryFLOAToperation at line 115. Possible FailurePath: [L37] unsigned char isInitial = 0; [L38-L52] struct WrapperStruct00 WrapperStruct00 = { 5.5, 10.375, 127.5, 256.2, 1, 5, 1, 32, 2, 16, 50, 100000000, 2 }; [L53] unsigned long int last_1_WrapperStruct00_var_1_12 = 16; VAL [WrapperStruct00={4:0}, isInitial=0, last_1_WrapperStruct00_var_1_12=16] [L119] isInitial = 1 [L120] FCALL initially() [L122] CALL updateLastVariables() [L112] EXPR WrapperStruct00.var_1_12 [L112] last_1_WrapperStruct00_var_1_12 = WrapperStruct00.var_1_12 [L122] RET updateLastVariables() [L123] CALL updateVariables() [L88] WrapperStruct00.var_1_2 = __VERIFIER_nondet_float() [L89] EXPR WrapperStruct00.var_1_2 [L89] EXPR WrapperStruct00.var_1_2 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_2 <= -1.0e-20F [L89] EXPR WrapperStruct00.var_1_2 [L89] EXPR WrapperStruct00.var_1_2 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_2 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L89] EXPR (WrapperStruct00.var_1_2 >= -922337.2036854776000e+13F && 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, last_1_WrapperStruct00_var_1_12=16] [L89] CALL assume_abort_if_not((WrapperStruct00.var_1_2 >= -922337.2036854776000e+13F && 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, last_1_WrapperStruct00_var_1_12=16] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L89] RET assume_abort_if_not((WrapperStruct00.var_1_2 >= -922337.2036854776000e+13F && 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, last_1_WrapperStruct00_var_1_12=16] [L90] WrapperStruct00.var_1_3 = __VERIFIER_nondet_float() [L91] EXPR WrapperStruct00.var_1_3 [L91] EXPR WrapperStruct00.var_1_3 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_3 <= -1.0e-20F [L91] EXPR WrapperStruct00.var_1_3 [L91] EXPR WrapperStruct00.var_1_3 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_3 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L91] EXPR (WrapperStruct00.var_1_3 >= -922337.2036854776000e+13F && 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, last_1_WrapperStruct00_var_1_12=16] [L91] CALL assume_abort_if_not((WrapperStruct00.var_1_3 >= -922337.2036854776000e+13F && 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, last_1_WrapperStruct00_var_1_12=16] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L91] RET assume_abort_if_not((WrapperStruct00.var_1_3 >= -922337.2036854776000e+13F && 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, last_1_WrapperStruct00_var_1_12=16] [L92] WrapperStruct00.var_1_4 = __VERIFIER_nondet_float() [L93] EXPR WrapperStruct00.var_1_4 [L93] EXPR WrapperStruct00.var_1_4 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_4 <= -1.0e-20F [L93] EXPR WrapperStruct00.var_1_4 [L93] EXPR WrapperStruct00.var_1_4 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_4 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L93] EXPR (WrapperStruct00.var_1_4 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_4 <= -1.0e-20F) || (WrapperStruct00.var_1_4 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_4 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L93] CALL assume_abort_if_not((WrapperStruct00.var_1_4 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_4 <= -1.0e-20F) || (WrapperStruct00.var_1_4 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_4 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L93] RET assume_abort_if_not((WrapperStruct00.var_1_4 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_4 <= -1.0e-20F) || (WrapperStruct00.var_1_4 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_4 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L94] WrapperStruct00.var_1_5 = __VERIFIER_nondet_uchar() [L95] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L95] CALL assume_abort_if_not(WrapperStruct00.var_1_5 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L95] RET assume_abort_if_not(WrapperStruct00.var_1_5 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L96] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L96] CALL assume_abort_if_not(WrapperStruct00.var_1_5 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L96] RET assume_abort_if_not(WrapperStruct00.var_1_5 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L97] WrapperStruct00.var_1_7 = __VERIFIER_nondet_uchar() [L98] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L98] CALL assume_abort_if_not(WrapperStruct00.var_1_7 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L98] RET assume_abort_if_not(WrapperStruct00.var_1_7 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L99] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L99] CALL assume_abort_if_not(WrapperStruct00.var_1_7 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L99] RET assume_abort_if_not(WrapperStruct00.var_1_7 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L100] WrapperStruct00.var_1_10 = __VERIFIER_nondet_long() [L101] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L101] CALL assume_abort_if_not(WrapperStruct00.var_1_10 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L101] RET assume_abort_if_not(WrapperStruct00.var_1_10 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L102] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L102] CALL assume_abort_if_not(WrapperStruct00.var_1_10 <= 1073741823) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L102] RET assume_abort_if_not(WrapperStruct00.var_1_10 <= 1073741823) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L103] WrapperStruct00.var_1_11 = __VERIFIER_nondet_long() [L104] EXPR WrapperStruct00.var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L104] CALL assume_abort_if_not(WrapperStruct00.var_1_11 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L104] RET assume_abort_if_not(WrapperStruct00.var_1_11 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L105] EXPR WrapperStruct00.var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L105] CALL assume_abort_if_not(WrapperStruct00.var_1_11 <= 1073741823) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L105] RET assume_abort_if_not(WrapperStruct00.var_1_11 <= 1073741823) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L106] WrapperStruct00.var_1_13 = __VERIFIER_nondet_uchar() [L107] EXPR WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L107] CALL assume_abort_if_not(WrapperStruct00.var_1_13 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L107] RET assume_abort_if_not(WrapperStruct00.var_1_13 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L108] EXPR WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L108] CALL assume_abort_if_not(WrapperStruct00.var_1_13 <= 255) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L108] RET assume_abort_if_not(WrapperStruct00.var_1_13 <= 255) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L109] EXPR WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L109] CALL assume_abort_if_not(WrapperStruct00.var_1_13 != 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L109] RET assume_abort_if_not(WrapperStruct00.var_1_13 != 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L123] RET updateVariables() [L124] CALL step() [L57] EXPR WrapperStruct00.var_1_2 [L57] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L57] COND FALSE !(WrapperStruct00.var_1_2 <= (- WrapperStruct00.var_1_3)) [L60] WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L60] COND FALSE !(WrapperStruct00.var_1_5) [L63] EXPR WrapperStruct00.var_1_4 [L63] WrapperStruct00.var_1_1 = WrapperStruct00.var_1_4 [L66] EXPR WrapperStruct00.var_1_13 [L66] WrapperStruct00.var_1_16 = WrapperStruct00.var_1_13 [L67] EXPR WrapperStruct00.var_1_7 [L67] unsigned char stepLocal_0 = WrapperStruct00.var_1_7; [L68] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16, stepLocal_0=-768] [L68] COND FALSE !(WrapperStruct00.var_1_5 || stepLocal_0) [L71] EXPR WrapperStruct00.var_1_10 [L71] EXPR WrapperStruct00.var_1_11 [L71] WrapperStruct00.var_1_6 = ((WrapperStruct00.var_1_10 + WrapperStruct00.var_1_11) - 4) [L73] EXPR WrapperStruct00.var_1_11 [L73] signed long int stepLocal_3 = WrapperStruct00.var_1_11; [L74] EXPR WrapperStruct00.var_1_16 [L74] EXPR WrapperStruct00.var_1_11 [L74] signed long int stepLocal_2 = WrapperStruct00.var_1_16 + WrapperStruct00.var_1_11; [L75] EXPR WrapperStruct00.var_1_11 [L75] EXPR WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16, stepLocal_2=1, stepLocal_3=0] [L75] EXPR WrapperStruct00.var_1_11 << WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16, stepLocal_2=1, stepLocal_3=0] [L75] signed long int stepLocal_1 = WrapperStruct00.var_1_11 << WrapperStruct00.var_1_16; [L76] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16, stepLocal_1=0, stepLocal_2=1, stepLocal_3=0] [L76] EXPR ((WrapperStruct00.var_1_10) < 0 ) ? -(WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_10) [L76] EXPR WrapperStruct00.var_1_10 [L76] EXPR ((WrapperStruct00.var_1_10) < 0 ) ? -(WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_10) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16, stepLocal_1=0, stepLocal_2=1, stepLocal_3=0] [L76] COND FALSE !(stepLocal_1 != ((((WrapperStruct00.var_1_10) < 0 ) ? -(WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_10)))) [L85] EXPR WrapperStruct00.var_1_16 [L85] WrapperStruct00.var_1_15 = WrapperStruct00.var_1_16 [L124] RET step() [L125] CALL, EXPR property() [L115] EXPR WrapperStruct00.var_1_2 [L115] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L115] EXPR (WrapperStruct00.var_1_2 <= (- WrapperStruct00.var_1_3)) ? (WrapperStruct00.var_1_1 == ((float) ((((WrapperStruct00.var_1_4) < 0 ) ? -(WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_4))))) : (WrapperStruct00.var_1_5 ? (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_4)) : (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_4))) [L115] EXPR WrapperStruct00.var_1_1 [L115] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L115] EXPR ((WrapperStruct00.var_1_4) < 0 ) ? -(WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_4) [L115] EXPR WrapperStruct00.var_1_4 [L115] EXPR ((WrapperStruct00.var_1_4) < 0 ) ? -(WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_4) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L115] EXPR (WrapperStruct00.var_1_2 <= (- WrapperStruct00.var_1_3)) ? (WrapperStruct00.var_1_1 == ((float) ((((WrapperStruct00.var_1_4) < 0 ) ? -(WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_4))))) : (WrapperStruct00.var_1_5 ? (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_4)) : (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_4))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L115] EXPR ((WrapperStruct00.var_1_2 <= (- WrapperStruct00.var_1_3)) ? (WrapperStruct00.var_1_1 == ((float) ((((WrapperStruct00.var_1_4) < 0 ) ? -(WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_4))))) : (WrapperStruct00.var_1_5 ? (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_4)) : (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_4)))) && ((WrapperStruct00.var_1_5 || WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_6 == ((signed long int) ((((WrapperStruct00.var_1_16) > (WrapperStruct00.var_1_16)) ? (WrapperStruct00.var_1_16) : (WrapperStruct00.var_1_16))))) : (WrapperStruct00.var_1_6 == ((signed long int) ((WrapperStruct00.var_1_10 + WrapperStruct00.var_1_11) - 4)))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L115] EXPR (((WrapperStruct00.var_1_2 <= (- WrapperStruct00.var_1_3)) ? (WrapperStruct00.var_1_1 == ((float) ((((WrapperStruct00.var_1_4) < 0 ) ? -(WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_4))))) : (WrapperStruct00.var_1_5 ? (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_4)) : (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_4)))) && ((WrapperStruct00.var_1_5 || WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_6 == ((signed long int) ((((WrapperStruct00.var_1_16) > (WrapperStruct00.var_1_16)) ? (WrapperStruct00.var_1_16) : (WrapperStruct00.var_1_16))))) : (WrapperStruct00.var_1_6 == ((signed long int) ((WrapperStruct00.var_1_10 + WrapperStruct00.var_1_11) - 4))))) && (((WrapperStruct00.var_1_11 << WrapperStruct00.var_1_16) != ((((WrapperStruct00.var_1_10) < 0 ) ? -(WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_10)))) ? (((WrapperStruct00.var_1_16 % WrapperStruct00.var_1_13) >= WrapperStruct00.var_1_11) ? (((WrapperStruct00.var_1_16 + WrapperStruct00.var_1_11) > (last_1_WrapperStruct00_var_1_12 * WrapperStruct00.var_1_16)) ? (WrapperStruct00.var_1_12 == ((unsigned long int) WrapperStruct00.var_1_13)) : (WrapperStruct00.var_1_12 == ((unsigned long int) WrapperStruct00.var_1_10))) : 1) : 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L115] EXPR ((((WrapperStruct00.var_1_2 <= (- WrapperStruct00.var_1_3)) ? (WrapperStruct00.var_1_1 == ((float) ((((WrapperStruct00.var_1_4) < 0 ) ? -(WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_4))))) : (WrapperStruct00.var_1_5 ? (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_4)) : (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_4)))) && ((WrapperStruct00.var_1_5 || WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_6 == ((signed long int) ((((WrapperStruct00.var_1_16) > (WrapperStruct00.var_1_16)) ? (WrapperStruct00.var_1_16) : (WrapperStruct00.var_1_16))))) : (WrapperStruct00.var_1_6 == ((signed long int) ((WrapperStruct00.var_1_10 + WrapperStruct00.var_1_11) - 4))))) && (((WrapperStruct00.var_1_11 << WrapperStruct00.var_1_16) != ((((WrapperStruct00.var_1_10) < 0 ) ? -(WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_10)))) ? (((WrapperStruct00.var_1_16 % WrapperStruct00.var_1_13) >= WrapperStruct00.var_1_11) ? (((WrapperStruct00.var_1_16 + WrapperStruct00.var_1_11) > (last_1_WrapperStruct00_var_1_12 * WrapperStruct00.var_1_16)) ? (WrapperStruct00.var_1_12 == ((unsigned long int) WrapperStruct00.var_1_13)) : (WrapperStruct00.var_1_12 == ((unsigned long int) WrapperStruct00.var_1_10))) : 1) : 1)) && (WrapperStruct00.var_1_15 == ((signed long int) WrapperStruct00.var_1_16)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L115] EXPR (((((WrapperStruct00.var_1_2 <= (- WrapperStruct00.var_1_3)) ? (WrapperStruct00.var_1_1 == ((float) ((((WrapperStruct00.var_1_4) < 0 ) ? -(WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_4))))) : (WrapperStruct00.var_1_5 ? (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_4)) : (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_4)))) && ((WrapperStruct00.var_1_5 || WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_6 == ((signed long int) ((((WrapperStruct00.var_1_16) > (WrapperStruct00.var_1_16)) ? (WrapperStruct00.var_1_16) : (WrapperStruct00.var_1_16))))) : (WrapperStruct00.var_1_6 == ((signed long int) ((WrapperStruct00.var_1_10 + WrapperStruct00.var_1_11) - 4))))) && (((WrapperStruct00.var_1_11 << WrapperStruct00.var_1_16) != ((((WrapperStruct00.var_1_10) < 0 ) ? -(WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_10)))) ? (((WrapperStruct00.var_1_16 % WrapperStruct00.var_1_13) >= WrapperStruct00.var_1_11) ? (((WrapperStruct00.var_1_16 + WrapperStruct00.var_1_11) > (last_1_WrapperStruct00_var_1_12 * WrapperStruct00.var_1_16)) ? (WrapperStruct00.var_1_12 == ((unsigned long int) WrapperStruct00.var_1_13)) : (WrapperStruct00.var_1_12 == ((unsigned long int) WrapperStruct00.var_1_10))) : 1) : 1)) && (WrapperStruct00.var_1_15 == ((signed long int) WrapperStruct00.var_1_16))) && (WrapperStruct00.var_1_16 == ((signed short int) WrapperStruct00.var_1_13)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L115-L116] return (((((WrapperStruct00.var_1_2 <= (- WrapperStruct00.var_1_3)) ? (WrapperStruct00.var_1_1 == ((float) ((((WrapperStruct00.var_1_4) < 0 ) ? -(WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_4))))) : (WrapperStruct00.var_1_5 ? (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_4)) : (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_4)))) && ((WrapperStruct00.var_1_5 || WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_6 == ((signed long int) ((((WrapperStruct00.var_1_16) > (WrapperStruct00.var_1_16)) ? (WrapperStruct00.var_1_16) : (WrapperStruct00.var_1_16))))) : (WrapperStruct00.var_1_6 == ((signed long int) ((WrapperStruct00.var_1_10 + WrapperStruct00.var_1_11) - 4))))) && (((WrapperStruct00.var_1_11 << WrapperStruct00.var_1_16) != ((((WrapperStruct00.var_1_10) < 0 ) ? -(WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_10)))) ? (((WrapperStruct00.var_1_16 % WrapperStruct00.var_1_13) >= WrapperStruct00.var_1_11) ? (((WrapperStruct00.var_1_16 + WrapperStruct00.var_1_11) > (last_1_WrapperStruct00_var_1_12 * WrapperStruct00.var_1_16)) ? (WrapperStruct00.var_1_12 == ((unsigned long int) WrapperStruct00.var_1_13)) : (WrapperStruct00.var_1_12 == ((unsigned long int) WrapperStruct00.var_1_10))) : 1) : 1)) && (WrapperStruct00.var_1_15 == ((signed long int) WrapperStruct00.var_1_16))) && (WrapperStruct00.var_1_16 == ((signed short int) WrapperStruct00.var_1_13)) ; [L125] RET, EXPR property() [L125] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16] [L19] reach_error() VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=16] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 109 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.1s, OverallIterations: 7, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 503 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 487 mSDsluCounter, 2480 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1627 mSDsCounter, 89 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1136 IncrementalHoareTripleChecker+Invalid, 1225 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 89 mSolverCounterUnsat, 853 mSDtfsCounter, 1136 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 421 GetRequests, 386 SyntacticMatches, 6 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=233occurred in iteration=6, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 10 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 1125 NumberOfCodeBlocks, 1125 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1116 ConstructedInterpolants, 0 QuantifiedInterpolants, 2038 SizeOfPredicates, 4 NumberOfNonLiveVariables, 931 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 3196/3276 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-28 03:26:34,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/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_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 318749465d360586bbf5c93b0a7c91860553b05314b1354647f65a52d19907b5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:26:37,416 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:26:37,539 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-28 03:26:37,546 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:26:37,547 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:26:37,599 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:26:37,600 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:26:37,601 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:26:37,602 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:26:37,603 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:26:37,603 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:26:37,604 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:26:37,604 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:26:37,604 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:26:37,604 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:26:37,604 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:26:37,605 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:26:37,607 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:26:37,607 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:26:37,607 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:26:37,607 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:26:37,607 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:26:37,607 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:26:37,607 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 03:26:37,607 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 03:26:37,608 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 03:26:37,608 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:26:37,608 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:26:37,608 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:26:37,608 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:26:37,608 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:26:37,608 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:26:37,608 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:26:37,608 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:26:37,608 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:26:37,609 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:26:37,609 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:26:37,609 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:26:37,609 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:26:37,609 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:26:37,609 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:26:37,609 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:26:37,609 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:26:37,609 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:26:37,609 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 03:26:37,611 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 03:26:37,611 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:26:37,611 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:26:37,612 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:26:37,612 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:26:37,612 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_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 318749465d360586bbf5c93b0a7c91860553b05314b1354647f65a52d19907b5 [2024-11-28 03:26:38,050 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:26:38,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:26:38,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:26:38,065 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:26:38,065 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:26:38,067 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-1.i [2024-11-28 03:26:41,526 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/data/9c96462c7/494412859acd488eba17dd96087e43f9/FLAG566ef7c51 [2024-11-28 03:26:41,790 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:26:41,791 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-1.i [2024-11-28 03:26:41,799 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/data/9c96462c7/494412859acd488eba17dd96087e43f9/FLAG566ef7c51 [2024-11-28 03:26:41,816 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/data/9c96462c7/494412859acd488eba17dd96087e43f9 [2024-11-28 03:26:41,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:26:41,821 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:26:41,822 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:26:41,823 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:26:41,828 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:26:41,829 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:26:41" (1/1) ... [2024-11-28 03:26:41,830 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7aa183f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:41, skipping insertion in model container [2024-11-28 03:26:41,831 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:26:41" (1/1) ... [2024-11-28 03:26:41,854 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:26:42,054 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_5ca487a6-c5b5-49af-989d-89ecfe772b06/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-1.i[915,928] [2024-11-28 03:26:42,131 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:26:42,150 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:26:42,165 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_5ca487a6-c5b5-49af-989d-89ecfe772b06/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-1.i[915,928] [2024-11-28 03:26:42,267 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:26:42,314 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:26:42,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:42 WrapperNode [2024-11-28 03:26:42,316 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:26:42,317 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:26:42,320 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:26:42,320 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:26:42,330 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:42" (1/1) ... [2024-11-28 03:26:42,365 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:42" (1/1) ... [2024-11-28 03:26:42,433 INFO L138 Inliner]: procedures = 37, calls = 153, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 467 [2024-11-28 03:26:42,434 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:26:42,438 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:26:42,439 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:26:42,439 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:26:42,455 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:42" (1/1) ... [2024-11-28 03:26:42,456 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:42" (1/1) ... [2024-11-28 03:26:42,474 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:42" (1/1) ... [2024-11-28 03:26:42,507 INFO L175 MemorySlicer]: Split 128 memory accesses to 2 slices as follows [2, 126]. 98 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 31 writes are split as follows [0, 31]. [2024-11-28 03:26:42,509 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:42" (1/1) ... [2024-11-28 03:26:42,509 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:42" (1/1) ... [2024-11-28 03:26:42,559 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:42" (1/1) ... [2024-11-28 03:26:42,560 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:42" (1/1) ... [2024-11-28 03:26:42,565 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:42" (1/1) ... [2024-11-28 03:26:42,573 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:42" (1/1) ... [2024-11-28 03:26:42,579 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:42" (1/1) ... [2024-11-28 03:26:42,591 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:26:42,596 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:26:42,596 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:26:42,597 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:26:42,598 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:42" (1/1) ... [2024-11-28 03:26:42,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:26:42,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:42,641 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:26:42,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:26:42,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:26:42,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-28 03:26:42,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-28 03:26:42,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 03:26:42,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 03:26:42,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-28 03:26:42,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-28 03:26:42,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-28 03:26:42,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-28 03:26:42,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-11-28 03:26:42,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-11-28 03:26:42,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-11-28 03:26:42,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-11-28 03:26:42,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-28 03:26:42,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-28 03:26:42,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#0 [2024-11-28 03:26:42,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#1 [2024-11-28 03:26:42,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2024-11-28 03:26:42,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2024-11-28 03:26:42,686 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:26:42,686 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:26:42,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#0 [2024-11-28 03:26:42,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#1 [2024-11-28 03:26:42,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:26:42,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:26:42,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-28 03:26:42,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-28 03:26:42,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-11-28 03:26:42,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-11-28 03:26:42,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-28 03:26:42,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-28 03:26:42,905 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:26:42,907 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:26:44,117 INFO L? ?]: Removed 123 outVars from TransFormulas that were not future-live. [2024-11-28 03:26:44,117 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:26:44,132 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:26:44,133 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:26:44,133 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:26:44 BoogieIcfgContainer [2024-11-28 03:26:44,134 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:26:44,136 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:26:44,136 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:26:44,143 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:26:44,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:26:41" (1/3) ... [2024-11-28 03:26:44,144 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49d52483 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:26:44, skipping insertion in model container [2024-11-28 03:26:44,144 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:42" (2/3) ... [2024-11-28 03:26:44,145 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49d52483 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:26:44, skipping insertion in model container [2024-11-28 03:26:44,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:26:44" (3/3) ... [2024-11-28 03:26:44,147 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-1.i [2024-11-28 03:26:44,164 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:26:44,166 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-1.i that has 2 procedures, 103 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:26:44,232 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:26:44,245 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;@4c2f1385, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:26:44,246 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:26:44,251 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 86 states have (on average 1.430232558139535) internal successors, (123), 87 states have internal predecessors, (123), 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) [2024-11-28 03:26:44,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-28 03:26:44,269 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:44,270 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] [2024-11-28 03:26:44,271 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:26:44,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:44,278 INFO L85 PathProgramCache]: Analyzing trace with hash 504420253, now seen corresponding path program 1 times [2024-11-28 03:26:44,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:26:44,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1146874681] [2024-11-28 03:26:44,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:44,294 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:26:44,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:26:44,299 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:26:44,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-28 03:26:44,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:44,842 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:26:44,852 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:44,921 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2024-11-28 03:26:44,921 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:26:44,922 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:26:44,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1146874681] [2024-11-28 03:26:44,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1146874681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:26:44,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:26:44,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:26:44,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083201385] [2024-11-28 03:26:44,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:26:44,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:26:44,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:26:44,969 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:26:44,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:26:44,973 INFO L87 Difference]: Start difference. First operand has 103 states, 86 states have (on average 1.430232558139535) internal successors, (123), 87 states have internal predecessors, (123), 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 30.0) internal successors, (60), 2 states have internal predecessors, (60), 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) [2024-11-28 03:26:45,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:45,015 INFO L93 Difference]: Finished difference Result 199 states and 310 transitions. [2024-11-28 03:26:45,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:26:45,017 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (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 123 [2024-11-28 03:26:45,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:45,025 INFO L225 Difference]: With dead ends: 199 [2024-11-28 03:26:45,025 INFO L226 Difference]: Without dead ends: 99 [2024-11-28 03:26:45,029 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:26:45,032 INFO L435 NwaCegarLoop]: 144 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, 144 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:45,033 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:26:45,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-28 03:26:45,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-11-28 03:26:45,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 83 states have (on average 1.3975903614457832) internal successors, (116), 83 states have internal predecessors, (116), 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) [2024-11-28 03:26:45,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 144 transitions. [2024-11-28 03:26:45,081 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 144 transitions. Word has length 123 [2024-11-28 03:26:45,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:45,082 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 144 transitions. [2024-11-28 03:26:45,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (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) [2024-11-28 03:26:45,082 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 144 transitions. [2024-11-28 03:26:45,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-28 03:26:45,087 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:45,088 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] [2024-11-28 03:26:45,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-28 03:26:45,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:26:45,289 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:26:45,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:45,289 INFO L85 PathProgramCache]: Analyzing trace with hash 222291573, now seen corresponding path program 1 times [2024-11-28 03:26:45,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:26:45,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1093297213] [2024-11-28 03:26:45,290 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:45,290 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:26:45,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:26:45,294 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:26:45,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-28 03:26:45,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:45,779 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:26:45,785 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:45,876 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:26:45,876 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:26:45,876 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:26:45,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1093297213] [2024-11-28 03:26:45,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1093297213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:26:45,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:26:45,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:26:45,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100434532] [2024-11-28 03:26:45,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:26:45,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:26:45,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:26:45,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:26:45,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:26:45,885 INFO L87 Difference]: Start difference. First operand 99 states and 144 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (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) [2024-11-28 03:26:46,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:46,039 INFO L93 Difference]: Finished difference Result 200 states and 292 transitions. [2024-11-28 03:26:46,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:26:46,043 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (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 123 [2024-11-28 03:26:46,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:46,048 INFO L225 Difference]: With dead ends: 200 [2024-11-28 03:26:46,049 INFO L226 Difference]: Without dead ends: 104 [2024-11-28 03:26:46,049 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:26:46,050 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 1 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:46,051 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 540 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:26:46,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-28 03:26:46,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 103. [2024-11-28 03:26:46,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 87 states have (on average 1.3793103448275863) internal successors, (120), 87 states have internal predecessors, (120), 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) [2024-11-28 03:26:46,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 148 transitions. [2024-11-28 03:26:46,080 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 148 transitions. Word has length 123 [2024-11-28 03:26:46,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:46,085 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 148 transitions. [2024-11-28 03:26:46,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (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) [2024-11-28 03:26:46,087 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 148 transitions. [2024-11-28 03:26:46,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-28 03:26:46,092 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:46,092 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] [2024-11-28 03:26:46,102 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-28 03:26:46,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:26:46,293 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:26:46,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:46,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1997298935, now seen corresponding path program 1 times [2024-11-28 03:26:46,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:26:46,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [676174588] [2024-11-28 03:26:46,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:46,295 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:26:46,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:26:46,300 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:26:46,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-28 03:26:46,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:46,751 INFO L256 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:26:46,755 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:46,814 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:26:46,816 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:26:46,816 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:26:46,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [676174588] [2024-11-28 03:26:46,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [676174588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:26:46,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:26:46,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:26:46,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128937752] [2024-11-28 03:26:46,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:26:46,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:26:46,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:26:46,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:26:46,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:26:46,818 INFO L87 Difference]: Start difference. First operand 103 states and 148 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 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) [2024-11-28 03:26:46,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:46,924 INFO L93 Difference]: Finished difference Result 206 states and 297 transitions. [2024-11-28 03:26:46,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:26:46,925 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 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 123 [2024-11-28 03:26:46,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:46,927 INFO L225 Difference]: With dead ends: 206 [2024-11-28 03:26:46,927 INFO L226 Difference]: Without dead ends: 106 [2024-11-28 03:26:46,927 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:26:46,928 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 1 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:46,929 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 669 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:26:46,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-28 03:26:46,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 105. [2024-11-28 03:26:46,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 89 states have (on average 1.3707865168539326) internal successors, (122), 89 states have internal predecessors, (122), 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) [2024-11-28 03:26:46,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 150 transitions. [2024-11-28 03:26:46,938 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 150 transitions. Word has length 123 [2024-11-28 03:26:46,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:46,939 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 150 transitions. [2024-11-28 03:26:46,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 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) [2024-11-28 03:26:46,939 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 150 transitions. [2024-11-28 03:26:46,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-28 03:26:46,941 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:46,941 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] [2024-11-28 03:26:46,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-28 03:26:47,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:26:47,142 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:26:47,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:47,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1999145977, now seen corresponding path program 1 times [2024-11-28 03:26:47,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:26:47,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1860182582] [2024-11-28 03:26:47,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:47,144 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:26:47,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:26:47,150 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:26:47,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-28 03:26:47,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:47,553 INFO L256 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 03:26:47,561 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:47,603 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-28 03:26:47,882 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2024-11-28 03:26:48,065 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2024-11-28 03:26:48,243 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2024-11-28 03:26:48,405 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2024-11-28 03:26:48,730 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 48 treesize of output 24 [2024-11-28 03:26:48,800 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 43 treesize of output 19 [2024-11-28 03:26:48,842 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 180 proven. 27 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-11-28 03:26:48,842 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:26:49,048 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:26:49,048 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:26:49,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1860182582] [2024-11-28 03:26:49,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1860182582] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:26:49,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:26:49,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2024-11-28 03:26:49,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283879396] [2024-11-28 03:26:49,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:26:49,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:26:49,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:26:49,050 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:26:49,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:26:49,051 INFO L87 Difference]: Start difference. First operand 105 states and 150 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (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) [2024-11-28 03:26:49,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:49,918 INFO L93 Difference]: Finished difference Result 282 states and 403 transitions. [2024-11-28 03:26:49,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:26:49,921 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (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 123 [2024-11-28 03:26:49,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:49,926 INFO L225 Difference]: With dead ends: 282 [2024-11-28 03:26:49,926 INFO L226 Difference]: Without dead ends: 180 [2024-11-28 03:26:49,927 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 230 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:26:49,927 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 92 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:49,928 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 441 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:26:49,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-11-28 03:26:49,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 177. [2024-11-28 03:26:49,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 157 states have (on average 1.394904458598726) internal successors, (219), 158 states have internal predecessors, (219), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-28 03:26:49,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 253 transitions. [2024-11-28 03:26:49,961 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 253 transitions. Word has length 123 [2024-11-28 03:26:49,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:49,961 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 253 transitions. [2024-11-28 03:26:49,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (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) [2024-11-28 03:26:49,962 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 253 transitions. [2024-11-28 03:26:49,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-28 03:26:49,966 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:49,966 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] [2024-11-28 03:26:49,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-28 03:26:50,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:26:50,167 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:26:50,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:50,167 INFO L85 PathProgramCache]: Analyzing trace with hash 193707643, now seen corresponding path program 1 times [2024-11-28 03:26:50,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:26:50,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1438134594] [2024-11-28 03:26:50,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:50,168 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:26:50,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:26:50,171 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:26:50,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-28 03:26:50,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:50,508 INFO L256 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 03:26:50,514 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:50,526 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 03:26:50,622 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 29 treesize of output 13 [2024-11-28 03:26:50,679 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 24 treesize of output 23 [2024-11-28 03:26:51,020 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:26:51,021 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 26 [2024-11-28 03:26:51,052 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:26:51,052 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 38 [2024-11-28 03:26:51,143 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:26:51,143 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 66 treesize of output 63 [2024-11-28 03:26:51,299 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:26:51,299 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 72 treesize of output 24 [2024-11-28 03:26:51,336 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 231 proven. 18 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2024-11-28 03:26:51,336 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:26:51,749 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 21 proven. 18 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-28 03:26:51,749 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:26:51,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1438134594] [2024-11-28 03:26:51,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1438134594] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:26:51,749 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:26:51,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 13 [2024-11-28 03:26:51,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298596830] [2024-11-28 03:26:51,750 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:26:51,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:26:51,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:26:51,752 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:26:51,752 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:26:51,753 INFO L87 Difference]: Start difference. First operand 177 states and 253 transitions. Second operand has 13 states, 11 states have (on average 7.181818181818182) internal successors, (79), 13 states have internal predecessors, (79), 5 states have call successors, (21), 3 states have call predecessors, (21), 5 states have return successors, (21), 3 states have call predecessors, (21), 5 states have call successors, (21) [2024-11-28 03:26:57,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:57,894 INFO L93 Difference]: Finished difference Result 483 states and 680 transitions. [2024-11-28 03:26:57,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-28 03:26:57,896 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 7.181818181818182) internal successors, (79), 13 states have internal predecessors, (79), 5 states have call successors, (21), 3 states have call predecessors, (21), 5 states have return successors, (21), 3 states have call predecessors, (21), 5 states have call successors, (21) Word has length 123 [2024-11-28 03:26:57,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:57,901 INFO L225 Difference]: With dead ends: 483 [2024-11-28 03:26:57,901 INFO L226 Difference]: Without dead ends: 309 [2024-11-28 03:26:57,902 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 232 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=204, Invalid=498, Unknown=0, NotChecked=0, Total=702 [2024-11-28 03:26:57,904 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 645 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:57,904 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [667 Valid, 421 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-11-28 03:26:57,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2024-11-28 03:26:57,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 223. [2024-11-28 03:26:57,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 192 states have (on average 1.359375) internal successors, (261), 194 states have internal predecessors, (261), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 22 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-28 03:26:57,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 309 transitions. [2024-11-28 03:26:57,943 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 309 transitions. Word has length 123 [2024-11-28 03:26:57,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:57,944 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 309 transitions. [2024-11-28 03:26:57,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 7.181818181818182) internal successors, (79), 13 states have internal predecessors, (79), 5 states have call successors, (21), 3 states have call predecessors, (21), 5 states have return successors, (21), 3 states have call predecessors, (21), 5 states have call successors, (21) [2024-11-28 03:26:57,944 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 309 transitions. [2024-11-28 03:26:57,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-28 03:26:57,947 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:57,947 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] [2024-11-28 03:26:57,960 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-28 03:26:58,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:26:58,148 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:26:58,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:58,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1495236099, now seen corresponding path program 1 times [2024-11-28 03:26:58,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:26:58,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [11477219] [2024-11-28 03:26:58,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:58,149 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:26:58,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:26:58,151 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:26:58,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-28 03:26:58,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:58,561 INFO L256 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-28 03:26:58,567 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:58,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 03:26:59,010 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 34 [2024-11-28 03:26:59,658 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:26:59,658 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 [2024-11-28 03:26:59,858 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:26:59,858 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 [2024-11-28 03:27:00,149 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:27:00,149 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 140 treesize of output 67 [2024-11-28 03:27:00,486 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:27:00,486 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 [2024-11-28 03:27:00,815 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:27:00,815 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 [2024-11-28 03:27:01,142 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:27:01,143 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 135 treesize of output 77 [2024-11-28 03:27:01,870 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:27:01,870 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 185 treesize of output 71 [2024-11-28 03:27:01,991 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 120 proven. 52 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-11-28 03:27:01,991 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:27:16,561 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:27:16,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [11477219] [2024-11-28 03:27:16,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [11477219] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:27:16,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [297640631] [2024-11-28 03:27:16,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:27:16,562 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 03:27:16,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 03:27:16,564 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 03:27:16,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-28 03:27:17,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:27:17,871 INFO L256 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-28 03:27:17,878 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:27:18,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-28 03:27:20,161 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 [2024-11-28 03:27:22,610 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:27:22,610 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 [2024-11-28 03:27:23,283 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:27:23,284 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 109 treesize of output 71 [2024-11-28 03:27:24,750 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:27:24,751 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 120 treesize of output 74 [2024-11-28 03:27:25,807 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:27:25,808 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 120 treesize of output 74 [2024-11-28 03:27:26,931 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:27:26,931 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 120 treesize of output 74 [2024-11-28 03:27:27,944 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:27:27,945 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 117 treesize of output 82 [2024-11-28 03:27:30,294 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:27:30,294 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 155 treesize of output 75 [2024-11-28 03:27:30,570 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 184 proven. 52 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-28 03:27:30,570 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:27:58,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [297640631] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:27:58,320 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:27:58,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 23 [2024-11-28 03:27:58,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164166594] [2024-11-28 03:27:58,321 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:27:58,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-28 03:27:58,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:27:58,323 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-28 03:27:58,323 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=728, Unknown=0, NotChecked=0, Total=870 [2024-11-28 03:27:58,324 INFO L87 Difference]: Start difference. First operand 223 states and 309 transitions. Second operand has 24 states, 24 states have (on average 4.291666666666667) internal successors, (103), 23 states have internal predecessors, (103), 7 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) [2024-11-28 03:28:31,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:28:31,846 INFO L93 Difference]: Finished difference Result 765 states and 1048 transitions. [2024-11-28 03:28:31,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:28:31,847 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.291666666666667) internal successors, (103), 23 states have internal predecessors, (103), 7 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) Word has length 123 [2024-11-28 03:28:31,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:28:31,851 INFO L225 Difference]: With dead ends: 765 [2024-11-28 03:28:31,851 INFO L226 Difference]: Without dead ends: 579 [2024-11-28 03:28:31,853 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 436 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 59.4s TimeCoverageRelationStatistics Valid=258, Invalid=1148, Unknown=0, NotChecked=0, Total=1406 [2024-11-28 03:28:31,854 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 519 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 1739 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 887 SdHoareTripleChecker+Invalid, 1816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:28:31,856 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 887 Invalid, 1816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1739 Invalid, 0 Unknown, 0 Unchecked, 19.2s Time] [2024-11-28 03:28:31,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2024-11-28 03:28:31,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 353. [2024-11-28 03:28:31,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 288 states have (on average 1.3333333333333333) internal successors, (384), 293 states have internal predecessors, (384), 50 states have call successors, (50), 14 states have call predecessors, (50), 14 states have return successors, (50), 45 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-28 03:28:31,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 484 transitions. [2024-11-28 03:28:31,913 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 484 transitions. Word has length 123 [2024-11-28 03:28:31,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:28:31,913 INFO L471 AbstractCegarLoop]: Abstraction has 353 states and 484 transitions. [2024-11-28 03:28:31,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.291666666666667) internal successors, (103), 23 states have internal predecessors, (103), 7 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) [2024-11-28 03:28:31,914 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 484 transitions. [2024-11-28 03:28:31,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-28 03:28:31,916 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:28:31,916 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] [2024-11-28 03:28:31,931 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2024-11-28 03:28:32,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2024-11-28 03:28:32,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:28:32,317 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:28:32,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:28:32,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1761146623, now seen corresponding path program 1 times [2024-11-28 03:28:32,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:28:32,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1229496130] [2024-11-28 03:28:32,318 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:28:32,318 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:28:32,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:28:32,320 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:28:32,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-28 03:28:32,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:28:32,588 INFO L256 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:28:32,590 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:28:32,682 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 03:28:32,682 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:28:32,682 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:28:32,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1229496130] [2024-11-28 03:28:32,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1229496130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:28:32,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:28:32,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:28:32,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609107110] [2024-11-28 03:28:32,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:28:32,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:28:32,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:28:32,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:28:32,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:28:32,684 INFO L87 Difference]: Start difference. First operand 353 states and 484 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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) [2024-11-28 03:28:32,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:28:32,872 INFO L93 Difference]: Finished difference Result 684 states and 936 transitions. [2024-11-28 03:28:32,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:28:32,875 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 123 [2024-11-28 03:28:32,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:28:32,877 INFO L225 Difference]: With dead ends: 684 [2024-11-28 03:28:32,877 INFO L226 Difference]: Without dead ends: 359 [2024-11-28 03:28:32,878 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:28:32,879 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 0 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:28:32,879 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 415 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:28:32,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-11-28 03:28:32,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2024-11-28 03:28:32,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 294 states have (on average 1.316326530612245) internal successors, (387), 299 states have internal predecessors, (387), 50 states have call successors, (50), 14 states have call predecessors, (50), 14 states have return successors, (50), 45 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-28 03:28:32,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 487 transitions. [2024-11-28 03:28:32,926 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 487 transitions. Word has length 123 [2024-11-28 03:28:32,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:28:32,926 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 487 transitions. [2024-11-28 03:28:32,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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) [2024-11-28 03:28:32,926 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 487 transitions. [2024-11-28 03:28:32,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-28 03:28:32,929 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:28:32,929 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] [2024-11-28 03:28:32,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-11-28 03:28:33,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:28:33,129 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:28:33,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:28:33,130 INFO L85 PathProgramCache]: Analyzing trace with hash 957255483, now seen corresponding path program 1 times [2024-11-28 03:28:33,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:28:33,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1824630431] [2024-11-28 03:28:33,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:28:33,131 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:28:33,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:28:33,132 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:28:33,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-28 03:28:33,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:28:33,388 INFO L256 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:28:33,395 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:28:33,485 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:28:33,485 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:28:33,485 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:28:33,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1824630431] [2024-11-28 03:28:33,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1824630431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:28:33,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:28:33,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:28:33,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418919705] [2024-11-28 03:28:33,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:28:33,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:28:33,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:28:33,486 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:28:33,486 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:28:33,487 INFO L87 Difference]: Start difference. First operand 359 states and 487 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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) [2024-11-28 03:28:33,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:28:33,662 INFO L93 Difference]: Finished difference Result 685 states and 929 transitions. [2024-11-28 03:28:33,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:28:33,663 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 123 [2024-11-28 03:28:33,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:28:33,666 INFO L225 Difference]: With dead ends: 685 [2024-11-28 03:28:33,666 INFO L226 Difference]: Without dead ends: 359 [2024-11-28 03:28:33,667 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:28:33,668 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 0 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:28:33,668 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 416 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:28:33,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-11-28 03:28:33,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2024-11-28 03:28:33,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 294 states have (on average 1.3061224489795917) internal successors, (384), 299 states have internal predecessors, (384), 50 states have call successors, (50), 14 states have call predecessors, (50), 14 states have return successors, (50), 45 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-28 03:28:33,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 484 transitions. [2024-11-28 03:28:33,716 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 484 transitions. Word has length 123 [2024-11-28 03:28:33,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:28:33,717 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 484 transitions. [2024-11-28 03:28:33,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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) [2024-11-28 03:28:33,717 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 484 transitions. [2024-11-28 03:28:33,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-28 03:28:33,719 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:28:33,719 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] [2024-11-28 03:28:33,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-28 03:28:33,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:28:33,920 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:28:33,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:28:33,921 INFO L85 PathProgramCache]: Analyzing trace with hash 42581858, now seen corresponding path program 1 times [2024-11-28 03:28:33,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:28:33,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [523723028] [2024-11-28 03:28:33,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:28:33,921 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:28:33,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:28:33,923 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:28:33,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-28 03:28:34,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:28:34,347 INFO L256 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-28 03:28:34,354 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:28:34,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 03:28:34,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-28 03:28:34,666 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-28 03:28:34,893 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-28 03:28:35,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-28 03:28:35,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-28 03:28:35,908 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:28:35,908 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 101 treesize of output 62 [2024-11-28 03:28:36,081 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:28:36,081 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 108 treesize of output 78 [2024-11-28 03:28:36,344 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:28:36,344 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 132 treesize of output 112 [2024-11-28 03:28:37,298 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:28:37,298 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 148 treesize of output 115 [2024-11-28 03:28:38,018 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:28:38,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 178 treesize of output 64 [2024-11-28 03:28:38,742 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-11-28 03:28:38,743 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:28:38,743 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:28:38,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [523723028] [2024-11-28 03:28:38,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [523723028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:28:38,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:28:38,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-28 03:28:38,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931380957] [2024-11-28 03:28:38,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:28:38,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:28:38,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:28:38,744 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:28:38,744 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:28:38,746 INFO L87 Difference]: Start difference. First operand 359 states and 484 transitions. Second operand has 12 states, 12 states have (on average 5.0) internal successors, (60), 12 states have internal predecessors, (60), 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) [2024-11-28 03:28:50,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.60s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:28:57,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:28:57,930 INFO L93 Difference]: Finished difference Result 841 states and 1127 transitions. [2024-11-28 03:28:57,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:28:57,931 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.0) internal successors, (60), 12 states have internal predecessors, (60), 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 124 [2024-11-28 03:28:57,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:28:57,935 INFO L225 Difference]: With dead ends: 841 [2024-11-28 03:28:57,935 INFO L226 Difference]: Without dead ends: 544 [2024-11-28 03:28:57,936 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:28:57,937 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 452 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 50 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:28:57,937 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 591 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 754 Invalid, 1 Unknown, 0 Unchecked, 18.3s Time] [2024-11-28 03:28:57,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2024-11-28 03:28:57,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 460. [2024-11-28 03:28:57,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 387 states have (on average 1.317829457364341) internal successors, (510), 395 states have internal predecessors, (510), 55 states have call successors, (55), 17 states have call predecessors, (55), 17 states have return successors, (55), 47 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-28 03:28:57,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 620 transitions. [2024-11-28 03:28:57,999 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 620 transitions. Word has length 124 [2024-11-28 03:28:57,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:28:57,999 INFO L471 AbstractCegarLoop]: Abstraction has 460 states and 620 transitions. [2024-11-28 03:28:57,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.0) internal successors, (60), 12 states have internal predecessors, (60), 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) [2024-11-28 03:28:58,000 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 620 transitions. [2024-11-28 03:28:58,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-28 03:28:58,001 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:28:58,001 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] [2024-11-28 03:28:58,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-11-28 03:28:58,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:28:58,202 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:28:58,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:28:58,203 INFO L85 PathProgramCache]: Analyzing trace with hash 2124926155, now seen corresponding path program 1 times [2024-11-28 03:28:58,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:28:58,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [301233885] [2024-11-28 03:28:58,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:28:58,203 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 [2024-11-28 03:28:58,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:28:58,205 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:28:58,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-28 03:28:58,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:28:58,552 INFO L256 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-28 03:28:58,557 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:28:58,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-28 03:28:59,193 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2024-11-28 03:28:59,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2024-11-28 03:29:00,107 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2024-11-28 03:29:00,511 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 [2024-11-28 03:29:01,691 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:29:01,692 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 47 treesize of output 32 [2024-11-28 03:29:01,879 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 54 treesize of output 44 [2024-11-28 03:29:02,149 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:29:02,150 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 72 treesize of output 78 [2024-11-28 03:29:02,847 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:29:02,848 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 88 treesize of output 81 [2024-11-28 03:29:03,362 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 252 proven. 27 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-28 03:29:03,362 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:29:04,176 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:29:04,176 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:29:04,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [301233885] [2024-11-28 03:29:04,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [301233885] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:29:04,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:29:04,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 13 [2024-11-28 03:29:04,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174961497] [2024-11-28 03:29:04,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:29:04,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:29:04,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:29:04,178 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:29:04,178 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:29:04,178 INFO L87 Difference]: Start difference. First operand 460 states and 620 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (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) [2024-11-28 03:29:06,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:29:06,609 INFO L93 Difference]: Finished difference Result 1042 states and 1403 transitions. [2024-11-28 03:29:06,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:29:06,610 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (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 124 [2024-11-28 03:29:06,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:29:06,614 INFO L225 Difference]: With dead ends: 1042 [2024-11-28 03:29:06,614 INFO L226 Difference]: Without dead ends: 644 [2024-11-28 03:29:06,615 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 232 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:29:06,616 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 156 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:29:06,617 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 346 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-28 03:29:06,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2024-11-28 03:29:06,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 538. [2024-11-28 03:29:06,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 459 states have (on average 1.3224400871459694) internal successors, (607), 469 states have internal predecessors, (607), 59 states have call successors, (59), 19 states have call predecessors, (59), 19 states have return successors, (59), 49 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-28 03:29:06,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 725 transitions. [2024-11-28 03:29:06,711 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 725 transitions. Word has length 124 [2024-11-28 03:29:06,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:29:06,712 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 725 transitions. [2024-11-28 03:29:06,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (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) [2024-11-28 03:29:06,712 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 725 transitions. [2024-11-28 03:29:06,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-28 03:29:06,713 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:29:06,714 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] [2024-11-28 03:29:06,722 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-11-28 03:29:06,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:29:06,914 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:29:06,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:29:06,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1113808905, now seen corresponding path program 1 times [2024-11-28 03:29:06,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:29:06,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [493167301] [2024-11-28 03:29:06,916 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:06,916 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:29:06,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:29:06,918 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:29:06,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-28 03:29:07,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:07,279 INFO L256 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-28 03:29:07,285 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:29:07,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 03:29:08,542 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 34 [2024-11-28 03:29:10,164 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:29:10,165 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 [2024-11-28 03:29:10,809 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:29:10,809 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 [2024-11-28 03:29:11,638 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:29:11,638 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 [2024-11-28 03:29:12,611 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:29:12,612 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 [2024-11-28 03:29:13,441 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:29:13,442 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 [2024-11-28 03:29:14,284 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:29:14,284 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 135 treesize of output 77 [2024-11-28 03:29:16,551 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:29:16,551 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 146 treesize of output 80 [2024-11-28 03:29:16,652 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:29:16,652 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 153 treesize of output 92 [2024-11-28 03:29:17,042 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:29:17,043 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 172 treesize of output 127 [2024-11-28 03:29:17,942 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:29:17,942 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 188 treesize of output 130 [2024-11-28 03:29:18,104 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:29:18,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 223 treesize of output 85 [2024-11-28 03:29:18,498 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 120 proven. 52 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-11-28 03:29:18,498 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:29:39,921 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:29:39,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [493167301] [2024-11-28 03:29:39,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [493167301] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:29:39,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1199994952] [2024-11-28 03:29:39,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:29:39,922 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 03:29:39,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 03:29:39,924 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 03:29:39,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-11-28 03:29:41,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:29:41,303 INFO L256 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-28 03:29:41,310 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:29:41,798 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-28 03:29:43,926 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 [2024-11-28 03:29:46,410 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:29:46,410 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 [2024-11-28 03:29:47,139 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:29:47,140 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 109 treesize of output 71 [2024-11-28 03:29:48,686 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:29:48,686 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 120 treesize of output 74 [2024-11-28 03:29:49,897 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:29:49,897 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 120 treesize of output 74 [2024-11-28 03:29:51,038 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:29:51,038 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 120 treesize of output 74 [2024-11-28 03:29:52,229 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:29:52,229 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 117 treesize of output 82 [2024-11-28 03:29:55,212 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:29:55,213 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 128 treesize of output 85 [2024-11-28 03:29:55,356 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:29:55,356 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 131 treesize of output 95 [2024-11-28 03:29:55,989 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:29:55,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 146 treesize of output 124 [2024-11-28 03:29:57,294 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:29:57,295 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 158 treesize of output 127 [2024-11-28 03:29:57,477 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:29:57,478 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 185 treesize of output 89 [2024-11-28 03:29:57,780 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 184 proven. 52 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-28 03:29:57,780 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:30:19,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1199994952] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:30:19,907 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:30:19,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 27 [2024-11-28 03:30:19,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805637506] [2024-11-28 03:30:19,907 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:30:19,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-28 03:30:19,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:30:19,908 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-28 03:30:19,908 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=933, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 03:30:19,909 INFO L87 Difference]: Start difference. First operand 538 states and 725 transitions. Second operand has 28 states, 28 states have (on average 4.071428571428571) internal successors, (114), 27 states have internal predecessors, (114), 7 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) [2024-11-28 03:31:07,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:31:07,436 INFO L93 Difference]: Finished difference Result 1437 states and 1946 transitions. [2024-11-28 03:31:07,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 03:31:07,437 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.071428571428571) internal successors, (114), 27 states have internal predecessors, (114), 7 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) Word has length 124 [2024-11-28 03:31:07,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:31:07,443 INFO L225 Difference]: With dead ends: 1437 [2024-11-28 03:31:07,443 INFO L226 Difference]: Without dead ends: 961 [2024-11-28 03:31:07,445 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 481 GetRequests, 436 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 566 ImplicationChecksByTransitivity, 73.3s TimeCoverageRelationStatistics Valid=381, Invalid=1598, Unknown=1, NotChecked=0, Total=1980 [2024-11-28 03:31:07,446 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 1110 mSDsluCounter, 799 mSDsCounter, 0 mSdLazyCounter, 1728 mSolverCounterSat, 163 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1110 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 1894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 1728 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:31:07,447 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1110 Valid, 876 Invalid, 1894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 1728 Invalid, 3 Unknown, 0 Unchecked, 22.7s Time] [2024-11-28 03:31:07,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2024-11-28 03:31:07,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 581. [2024-11-28 03:31:07,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 502 states have (on average 1.3286852589641434) internal successors, (667), 512 states have internal predecessors, (667), 59 states have call successors, (59), 19 states have call predecessors, (59), 19 states have return successors, (59), 49 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-28 03:31:07,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 785 transitions. [2024-11-28 03:31:07,541 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 785 transitions. Word has length 124 [2024-11-28 03:31:07,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:31:07,542 INFO L471 AbstractCegarLoop]: Abstraction has 581 states and 785 transitions. [2024-11-28 03:31:07,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.071428571428571) internal successors, (114), 27 states have internal predecessors, (114), 7 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) [2024-11-28 03:31:07,542 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 785 transitions. [2024-11-28 03:31:07,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-28 03:31:07,544 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:31:07,544 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] [2024-11-28 03:31:07,551 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2024-11-28 03:31:07,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-11-28 03:31:07,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:31:07,945 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:31:07,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:31:07,945 INFO L85 PathProgramCache]: Analyzing trace with hash -91431648, now seen corresponding path program 1 times [2024-11-28 03:31:07,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:31:07,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [709392442] [2024-11-28 03:31:07,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:31:07,946 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:31:07,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:31:07,948 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:31:07,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-11-28 03:31:08,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:31:08,441 INFO L256 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 03:31:08,447 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:31:08,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 03:31:10,126 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 [2024-11-28 03:31:10,761 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 [2024-11-28 03:31:11,390 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 [2024-11-28 03:31:12,028 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 [2024-11-28 03:31:12,752 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 [2024-11-28 03:31:13,853 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 88 treesize of output 34 [2024-11-28 03:31:14,101 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-28 03:31:14,102 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:31:14,102 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:31:14,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [709392442] [2024-11-28 03:31:14,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [709392442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:31:14,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:31:14,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:31:14,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072792906] [2024-11-28 03:31:14,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:31:14,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:31:14,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:31:14,103 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:31:14,103 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:31:14,104 INFO L87 Difference]: Start difference. First operand 581 states and 785 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 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) [2024-11-28 03:31:20,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:31:20,872 INFO L93 Difference]: Finished difference Result 1604 states and 2158 transitions. [2024-11-28 03:31:20,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:31:20,873 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 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 124 [2024-11-28 03:31:20,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:31:20,878 INFO L225 Difference]: With dead ends: 1604 [2024-11-28 03:31:20,879 INFO L226 Difference]: Without dead ends: 1085 [2024-11-28 03:31:20,880 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:31:20,880 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 203 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:31:20,881 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 363 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2024-11-28 03:31:20,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2024-11-28 03:31:21,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 882. [2024-11-28 03:31:21,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 745 states have (on average 1.3154362416107384) internal successors, (980), 764 states have internal predecessors, (980), 104 states have call successors, (104), 32 states have call predecessors, (104), 32 states have return successors, (104), 85 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-28 03:31:21,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1188 transitions. [2024-11-28 03:31:21,023 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1188 transitions. Word has length 124 [2024-11-28 03:31:21,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:31:21,024 INFO L471 AbstractCegarLoop]: Abstraction has 882 states and 1188 transitions. [2024-11-28 03:31:21,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 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) [2024-11-28 03:31:21,024 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1188 transitions. [2024-11-28 03:31:21,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-28 03:31:21,026 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:31:21,026 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] [2024-11-28 03:31:21,034 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-11-28 03:31:21,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:31:21,227 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:31:21,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:31:21,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1398574046, now seen corresponding path program 1 times [2024-11-28 03:31:21,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:31:21,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1232169151] [2024-11-28 03:31:21,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:31:21,228 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:31:21,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:31:21,230 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:31:21,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-11-28 03:31:21,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:31:21,513 INFO L256 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:31:21,515 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:31:21,609 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-28 03:31:21,609 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:31:21,609 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:31:21,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1232169151] [2024-11-28 03:31:21,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1232169151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:31:21,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:31:21,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:31:21,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849823838] [2024-11-28 03:31:21,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:31:21,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:31:21,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:31:21,610 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:31:21,610 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:31:21,610 INFO L87 Difference]: Start difference. First operand 882 states and 1188 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2024-11-28 03:31:21,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:31:21,832 INFO L93 Difference]: Finished difference Result 1703 states and 2290 transitions. [2024-11-28 03:31:21,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:31:21,833 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 124 [2024-11-28 03:31:21,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:31:21,837 INFO L225 Difference]: With dead ends: 1703 [2024-11-28 03:31:21,838 INFO L226 Difference]: Without dead ends: 882 [2024-11-28 03:31:21,839 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:31:21,840 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 0 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:31:21,840 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 415 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:31:21,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2024-11-28 03:31:22,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 882. [2024-11-28 03:31:22,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 745 states have (on average 1.3060402684563759) internal successors, (973), 764 states have internal predecessors, (973), 104 states have call successors, (104), 32 states have call predecessors, (104), 32 states have return successors, (104), 85 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-28 03:31:22,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1181 transitions. [2024-11-28 03:31:22,020 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1181 transitions. Word has length 124 [2024-11-28 03:31:22,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:31:22,020 INFO L471 AbstractCegarLoop]: Abstraction has 882 states and 1181 transitions. [2024-11-28 03:31:22,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2024-11-28 03:31:22,020 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1181 transitions. [2024-11-28 03:31:22,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-28 03:31:22,024 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:31:22,025 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] [2024-11-28 03:31:22,031 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-11-28 03:31:22,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:31:22,226 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:31:22,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:31:22,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1165336637, now seen corresponding path program 1 times [2024-11-28 03:31:22,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:31:22,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [165737008] [2024-11-28 03:31:22,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:31:22,227 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:31:22,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:31:22,229 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:31:22,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-11-28 03:31:22,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:31:22,608 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-28 03:31:22,614 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:31:22,714 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 03:31:23,853 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 80 treesize of output 34 [2024-11-28 03:31:26,210 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:31:26,211 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 138 treesize of output 65 [2024-11-28 03:31:26,899 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:31:26,899 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 133 treesize of output 75 [2024-11-28 03:31:28,340 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:31:28,340 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 148 treesize of output 78 [2024-11-28 03:31:29,405 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:31:29,406 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 148 treesize of output 78 [2024-11-28 03:31:30,476 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:31:30,476 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 148 treesize of output 78 [2024-11-28 03:31:31,511 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:31:31,511 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 148 treesize of output 78 [2024-11-28 03:31:34,203 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:31:34,204 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 138 treesize of output 72 [2024-11-28 03:31:34,311 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:31:34,311 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 93 [2024-11-28 03:31:34,842 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:31:34,843 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 169 treesize of output 127 [2024-11-28 03:31:35,962 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:31:35,963 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 185 treesize of output 130 [2024-11-28 03:31:36,111 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:31:36,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 220 treesize of output 76 [2024-11-28 03:31:36,526 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 56 proven. 88 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-28 03:31:36,527 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:31:38,040 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:31:38,040 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:31:38,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [165737008] [2024-11-28 03:31:38,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [165737008] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:31:38,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:31:38,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [19] total 23 [2024-11-28 03:31:38,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757749212] [2024-11-28 03:31:38,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:31:38,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:31:38,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:31:38,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:31:38,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:31:38,042 INFO L87 Difference]: Start difference. First operand 882 states and 1181 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 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) [2024-11-28 03:31:41,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:31:41,316 INFO L93 Difference]: Finished difference Result 1771 states and 2374 transitions. [2024-11-28 03:31:41,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:31:41,317 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 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 125 [2024-11-28 03:31:41,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:31:41,321 INFO L225 Difference]: With dead ends: 1771 [2024-11-28 03:31:41,321 INFO L226 Difference]: Without dead ends: 968 [2024-11-28 03:31:41,323 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=85, Invalid=467, Unknown=0, NotChecked=0, Total=552 [2024-11-28 03:31:41,324 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 51 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:31:41,324 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 456 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-28 03:31:41,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2024-11-28 03:31:41,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 898. [2024-11-28 03:31:41,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 898 states, 761 states have (on average 1.3022339027595269) internal successors, (991), 780 states have internal predecessors, (991), 104 states have call successors, (104), 32 states have call predecessors, (104), 32 states have return successors, (104), 85 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-28 03:31:41,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1199 transitions. [2024-11-28 03:31:41,457 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1199 transitions. Word has length 125 [2024-11-28 03:31:41,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:31:41,458 INFO L471 AbstractCegarLoop]: Abstraction has 898 states and 1199 transitions. [2024-11-28 03:31:41,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 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) [2024-11-28 03:31:41,458 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1199 transitions. [2024-11-28 03:31:41,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-28 03:31:41,460 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:31:41,460 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] [2024-11-28 03:31:41,470 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2024-11-28 03:31:41,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:31:41,661 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:31:41,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:31:41,661 INFO L85 PathProgramCache]: Analyzing trace with hash -94109590, now seen corresponding path program 1 times [2024-11-28 03:31:41,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:31:41,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1703896658] [2024-11-28 03:31:41,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:31:41,662 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:31:41,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:31:41,664 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:31:41,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-11-28 03:31:42,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:31:42,047 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-28 03:31:42,052 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:31:42,682 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 03:31:43,583 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 [2024-11-28 03:31:43,992 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 75 treesize of output 44 [2024-11-28 03:31:44,784 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:31:44,784 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 90 treesize of output 47 [2024-11-28 03:31:45,524 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:31:45,524 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 90 treesize of output 47 [2024-11-28 03:31:46,237 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:31:46,237 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 90 treesize of output 47 [2024-11-28 03:31:47,307 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:31:47,307 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 131 treesize of output 74 [2024-11-28 03:31:47,573 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:31:47,574 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 138 treesize of output 90 [2024-11-28 03:31:47,910 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:31:47,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 162 treesize of output 124 [2024-11-28 03:31:48,732 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:31:48,733 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 178 treesize of output 127 [2024-11-28 03:31:49,126 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:31:49,126 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 259 treesize of output 97 [2024-11-28 03:31:49,700 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 108 proven. 96 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2024-11-28 03:31:49,700 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:31:50,813 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:31:50,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1703896658] [2024-11-28 03:31:50,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1703896658] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:31:50,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1296696964] [2024-11-28 03:31:50,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:31:50,813 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 03:31:50,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 03:31:50,815 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 03:31:50,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2024-11-28 03:31:52,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:31:52,387 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-28 03:31:52,393 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:31:54,107 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-28 03:31:56,015 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 [2024-11-28 03:31:56,591 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 [2024-11-28 03:31:57,203 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 [2024-11-28 03:31:57,792 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 [2024-11-28 03:31:58,387 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 61 treesize of output 40 [2024-11-28 03:32:00,126 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:32:00,126 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 111 treesize of output 70 [2024-11-28 03:32:00,608 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:32:00,608 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 114 treesize of output 75 [2024-11-28 03:32:01,141 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:32:01,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 129 treesize of output 104 [2024-11-28 03:32:02,226 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:32:02,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 141 treesize of output 107 [2024-11-28 03:32:02,663 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:32:02,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 214 treesize of output 98 [2024-11-28 03:32:02,764 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 108 proven. 96 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2024-11-28 03:32:02,764 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:32:03,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1296696964] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:32:03,326 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:32:03,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 22 [2024-11-28 03:32:03,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065511761] [2024-11-28 03:32:03,327 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:32:03,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 03:32:03,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:32:03,328 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 03:32:03,328 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=596, Unknown=0, NotChecked=0, Total=702 [2024-11-28 03:32:03,329 INFO L87 Difference]: Start difference. First operand 898 states and 1199 transitions. Second operand has 23 states, 23 states have (on average 5.0) internal successors, (115), 22 states have internal predecessors, (115), 6 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28) [2024-11-28 03:32:24,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.17s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:32:29,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:32:34,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.59s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:32:38,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.72s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:32:41,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:32:51,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:51,820 INFO L93 Difference]: Finished difference Result 2034 states and 2685 transitions. [2024-11-28 03:32:51,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 03:32:51,821 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 5.0) internal successors, (115), 22 states have internal predecessors, (115), 6 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28) Word has length 125 [2024-11-28 03:32:51,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:51,827 INFO L225 Difference]: With dead ends: 2034 [2024-11-28 03:32:51,827 INFO L226 Difference]: Without dead ends: 1215 [2024-11-28 03:32:51,829 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 275 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=348, Invalid=1374, Unknown=0, NotChecked=0, Total=1722 [2024-11-28 03:32:51,830 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 763 mSDsluCounter, 1403 mSDsCounter, 0 mSdLazyCounter, 2292 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 1536 SdHoareTripleChecker+Invalid, 2405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 2292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:51,830 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [763 Valid, 1536 Invalid, 2405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 2292 Invalid, 0 Unknown, 0 Unchecked, 43.4s Time] [2024-11-28 03:32:51,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1215 states. [2024-11-28 03:32:51,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1215 to 771. [2024-11-28 03:32:51,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 650 states have (on average 1.2892307692307692) internal successors, (838), 662 states have internal predecessors, (838), 87 states have call successors, (87), 33 states have call predecessors, (87), 33 states have return successors, (87), 75 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-28 03:32:51,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 1012 transitions. [2024-11-28 03:32:51,963 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 1012 transitions. Word has length 125 [2024-11-28 03:32:51,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:51,963 INFO L471 AbstractCegarLoop]: Abstraction has 771 states and 1012 transitions. [2024-11-28 03:32:51,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.0) internal successors, (115), 22 states have internal predecessors, (115), 6 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28) [2024-11-28 03:32:51,964 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 1012 transitions. [2024-11-28 03:32:51,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-28 03:32:51,966 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:51,966 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] [2024-11-28 03:32:51,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2024-11-28 03:32:52,173 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2024-11-28 03:32:52,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 03:32:52,367 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:52,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:52,367 INFO L85 PathProgramCache]: Analyzing trace with hash -819698659, now seen corresponding path program 1 times [2024-11-28 03:32:52,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:32:52,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2136049443] [2024-11-28 03:32:52,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:52,368 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:32:52,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:32:52,370 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:32:52,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-11-28 03:32:52,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:52,670 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:32:52,672 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:32:52,689 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 22 treesize of output 22 [2024-11-28 03:32:52,748 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:32:52,748 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 39 treesize of output 15 [2024-11-28 03:32:52,846 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:32:52,846 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:32:52,847 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:32:52,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2136049443] [2024-11-28 03:32:52,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2136049443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:52,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:32:52,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:32:52,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967115648] [2024-11-28 03:32:52,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:52,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:32:52,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:32:52,848 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:32:52,848 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:32:52,849 INFO L87 Difference]: Start difference. First operand 771 states and 1012 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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) [2024-11-28 03:32:54,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:54,704 INFO L93 Difference]: Finished difference Result 1586 states and 2062 transitions. [2024-11-28 03:32:54,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:32:54,705 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 126 [2024-11-28 03:32:54,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:54,710 INFO L225 Difference]: With dead ends: 1586 [2024-11-28 03:32:54,710 INFO L226 Difference]: Without dead ends: 894 [2024-11-28 03:32:54,712 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:32:54,712 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 108 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:54,713 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 346 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-28 03:32:54,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2024-11-28 03:32:54,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 771. [2024-11-28 03:32:54,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 650 states have (on average 1.2769230769230768) internal successors, (830), 662 states have internal predecessors, (830), 87 states have call successors, (87), 33 states have call predecessors, (87), 33 states have return successors, (87), 75 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-28 03:32:54,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 1004 transitions. [2024-11-28 03:32:54,817 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 1004 transitions. Word has length 126 [2024-11-28 03:32:54,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:54,818 INFO L471 AbstractCegarLoop]: Abstraction has 771 states and 1004 transitions. [2024-11-28 03:32:54,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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) [2024-11-28 03:32:54,818 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 1004 transitions. [2024-11-28 03:32:54,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-28 03:32:54,820 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:54,821 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] [2024-11-28 03:32:54,829 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2024-11-28 03:32:55,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:32:55,021 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:55,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:55,022 INFO L85 PathProgramCache]: Analyzing trace with hash -600843941, now seen corresponding path program 1 times [2024-11-28 03:32:55,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:32:55,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2094678829] [2024-11-28 03:32:55,022 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:55,022 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:32:55,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:32:55,024 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:32:55,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-11-28 03:32:55,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:55,408 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-28 03:32:55,414 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:32:55,429 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 03:32:55,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 03:32:55,458 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-28 03:32:55,695 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-28 03:32:55,899 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-28 03:32:56,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-28 03:32:56,718 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:32:56,718 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 101 treesize of output 62 [2024-11-28 03:32:56,918 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:32:56,918 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 108 treesize of output 78 [2024-11-28 03:32:57,321 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:32:57,321 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 123 treesize of output 81 [2024-11-28 03:32:57,642 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:32:57,642 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 123 treesize of output 81 [2024-11-28 03:32:58,125 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:32:58,125 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 153 treesize of output 57 [2024-11-28 03:32:58,724 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 180 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-28 03:32:58,724 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:32:58,724 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:32:58,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2094678829] [2024-11-28 03:32:58,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2094678829] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:58,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:32:58,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 03:32:58,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604579434] [2024-11-28 03:32:58,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:58,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:32:58,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:32:58,726 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:32:58,726 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:32:58,726 INFO L87 Difference]: Start difference. First operand 771 states and 1004 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 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) [2024-11-28 03:33:11,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:11,160 INFO L93 Difference]: Finished difference Result 1605 states and 2091 transitions. [2024-11-28 03:33:11,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:33:11,161 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 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 126 [2024-11-28 03:33:11,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:11,166 INFO L225 Difference]: With dead ends: 1605 [2024-11-28 03:33:11,166 INFO L226 Difference]: Without dead ends: 913 [2024-11-28 03:33:11,167 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:33:11,168 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 166 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 868 mSolverCounterSat, 20 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 868 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:11,168 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 626 Invalid, 890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 868 Invalid, 2 Unknown, 0 Unchecked, 11.7s Time] [2024-11-28 03:33:11,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2024-11-28 03:33:11,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 771. [2024-11-28 03:33:11,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 650 states have (on average 1.2753846153846153) internal successors, (829), 662 states have internal predecessors, (829), 87 states have call successors, (87), 33 states have call predecessors, (87), 33 states have return successors, (87), 75 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-28 03:33:11,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 1003 transitions. [2024-11-28 03:33:11,313 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 1003 transitions. Word has length 126 [2024-11-28 03:33:11,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:11,314 INFO L471 AbstractCegarLoop]: Abstraction has 771 states and 1003 transitions. [2024-11-28 03:33:11,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 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) [2024-11-28 03:33:11,314 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 1003 transitions. [2024-11-28 03:33:11,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-28 03:33:11,316 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:11,316 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] [2024-11-28 03:33:11,325 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-11-28 03:33:11,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:33:11,517 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:11,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:11,517 INFO L85 PathProgramCache]: Analyzing trace with hash -81190938, now seen corresponding path program 1 times [2024-11-28 03:33:11,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:33:11,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1272891038] [2024-11-28 03:33:11,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:11,518 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:33:11,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:33:11,521 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:33:11,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-11-28 03:33:11,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:11,905 INFO L256 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-28 03:33:11,910 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:33:12,249 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 [2024-11-28 03:33:13,143 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 49 treesize of output 21 [2024-11-28 03:33:13,559 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 49 treesize of output 21 [2024-11-28 03:33:13,976 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 49 treesize of output 21 [2024-11-28 03:33:14,395 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 49 treesize of output 21 [2024-11-28 03:33:14,838 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 49 treesize of output 21 [2024-11-28 03:33:15,540 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 45 treesize of output 21 [2024-11-28 03:33:15,604 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:33:15,604 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 52 treesize of output 42 [2024-11-28 03:33:15,814 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:33:15,814 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 76 treesize of output 76 [2024-11-28 03:33:16,378 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:33:16,378 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 92 treesize of output 79 [2024-11-28 03:33:16,555 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:33:16,555 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 100 treesize of output 34 [2024-11-28 03:33:16,776 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 105 proven. 33 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2024-11-28 03:33:16,776 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:33:18,771 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 6 proven. 33 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-28 03:33:18,771 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:33:18,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1272891038] [2024-11-28 03:33:18,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1272891038] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:33:18,772 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:33:18,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 17 [2024-11-28 03:33:18,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352642438] [2024-11-28 03:33:18,772 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:33:18,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 03:33:18,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:33:18,773 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 03:33:18,773 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:33:18,774 INFO L87 Difference]: Start difference. First operand 771 states and 1003 transitions. Second operand has 17 states, 15 states have (on average 7.6) internal successors, (114), 17 states have internal predecessors, (114), 6 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 4 states have call predecessors, (28), 6 states have call successors, (28) [2024-11-28 03:33:40,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:40,958 INFO L93 Difference]: Finished difference Result 2343 states and 3030 transitions. [2024-11-28 03:33:40,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-28 03:33:40,959 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 7.6) internal successors, (114), 17 states have internal predecessors, (114), 6 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 4 states have call predecessors, (28), 6 states have call successors, (28) Word has length 126 [2024-11-28 03:33:40,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:40,964 INFO L225 Difference]: With dead ends: 2343 [2024-11-28 03:33:40,964 INFO L226 Difference]: Without dead ends: 1605 [2024-11-28 03:33:40,966 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=319, Invalid=871, Unknown=0, NotChecked=0, Total=1190 [2024-11-28 03:33:40,967 INFO L435 NwaCegarLoop]: 199 mSDtfsCounter, 424 mSDsluCounter, 820 mSDsCounter, 0 mSdLazyCounter, 1971 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 1019 SdHoareTripleChecker+Invalid, 2035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:40,967 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [443 Valid, 1019 Invalid, 2035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1971 Invalid, 0 Unknown, 0 Unchecked, 19.2s Time] [2024-11-28 03:33:40,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1605 states. [2024-11-28 03:33:41,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1605 to 836. [2024-11-28 03:33:41,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 684 states have (on average 1.2426900584795322) internal successors, (850), 693 states have internal predecessors, (850), 109 states have call successors, (109), 42 states have call predecessors, (109), 42 states have return successors, (109), 100 states have call predecessors, (109), 109 states have call successors, (109) [2024-11-28 03:33:41,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1068 transitions. [2024-11-28 03:33:41,139 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1068 transitions. Word has length 126 [2024-11-28 03:33:41,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:41,140 INFO L471 AbstractCegarLoop]: Abstraction has 836 states and 1068 transitions. [2024-11-28 03:33:41,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 7.6) internal successors, (114), 17 states have internal predecessors, (114), 6 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 4 states have call predecessors, (28), 6 states have call successors, (28) [2024-11-28 03:33:41,140 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1068 transitions. [2024-11-28 03:33:41,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-28 03:33:41,142 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:41,142 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] [2024-11-28 03:33:41,150 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2024-11-28 03:33:41,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:33:41,343 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:41,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:41,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1092308188, now seen corresponding path program 1 times [2024-11-28 03:33:41,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:33:41,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [444610197] [2024-11-28 03:33:41,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:41,344 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:33:41,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:33:41,345 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:33:41,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2024-11-28 03:33:41,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:41,752 INFO L256 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-28 03:33:41,758 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:33:42,077 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 03:33:43,305 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 73 treesize of output 42 [2024-11-28 03:33:44,071 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:33:44,072 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 83 treesize of output 55 [2024-11-28 03:33:45,089 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:33:45,090 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 98 treesize of output 58 [2024-11-28 03:33:45,889 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:33:45,889 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 98 treesize of output 58 [2024-11-28 03:33:46,657 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:33:46,657 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 98 treesize of output 58 [2024-11-28 03:33:48,398 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:33:48,398 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 139 treesize of output 85 [2024-11-28 03:33:48,783 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:33:48,784 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 146 treesize of output 101 [2024-11-28 03:33:49,242 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:33:49,242 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 170 treesize of output 135 [2024-11-28 03:33:50,311 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:33:50,311 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 186 treesize of output 138 [2024-11-28 03:33:51,282 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:33:51,282 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 215 treesize of output 77 [2024-11-28 03:33:52,201 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 83 proven. 129 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-28 03:33:52,201 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:33:54,215 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:33:54,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [444610197] [2024-11-28 03:33:54,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [444610197] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:33:54,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [661414789] [2024-11-28 03:33:54,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:54,216 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 03:33:54,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 03:33:54,218 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 03:33:54,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2024-11-28 03:33:55,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:55,990 INFO L256 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-28 03:33:55,996 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:33:57,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-28 03:34:01,116 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 59 treesize of output 38 [2024-11-28 03:34:02,729 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:34:02,730 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 70 treesize of output 41 [2024-11-28 03:34:03,798 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:34:03,798 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 70 treesize of output 41 [2024-11-28 03:34:04,833 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:34:04,834 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 70 treesize of output 41 [2024-11-28 03:34:05,941 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:34:05,942 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 70 treesize of output 41 [2024-11-28 03:34:09,342 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:34:09,343 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 109 treesize of output 68 [2024-11-28 03:34:10,131 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:34:10,131 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 112 treesize of output 80 [2024-11-28 03:34:10,959 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:34:10,959 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 130 treesize of output 108 [2024-11-28 03:34:12,491 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:34:12,491 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 142 treesize of output 111 [2024-11-28 03:34:14,020 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:34:14,020 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 193 treesize of output 85 [2024-11-28 03:34:14,473 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 107 proven. 33 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-28 03:34:14,473 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:34:17,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [661414789] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:34:17,270 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:34:17,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 34 [2024-11-28 03:34:17,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268612119] [2024-11-28 03:34:17,271 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:34:17,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-28 03:34:17,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:34:17,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-28 03:34:17,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=309, Invalid=1671, Unknown=0, NotChecked=0, Total=1980 [2024-11-28 03:34:17,273 INFO L87 Difference]: Start difference. First operand 836 states and 1068 transitions. Second operand has 35 states, 33 states have (on average 3.6363636363636362) internal successors, (120), 30 states have internal predecessors, (120), 7 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) [2024-11-28 03:34:49,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.49s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:34:53,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.99s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:35:14,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:35:15,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:35:15,306 INFO L93 Difference]: Finished difference Result 1917 states and 2437 transitions. [2024-11-28 03:35:15,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-28 03:35:15,308 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 33 states have (on average 3.6363636363636362) internal successors, (120), 30 states have internal predecessors, (120), 7 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) Word has length 126 [2024-11-28 03:35:15,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:35:15,312 INFO L225 Difference]: With dead ends: 1917 [2024-11-28 03:35:15,312 INFO L226 Difference]: Without dead ends: 1165 [2024-11-28 03:35:15,315 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 260 SyntacticMatches, 3 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1076 ImplicationChecksByTransitivity, 26.0s TimeCoverageRelationStatistics Valid=757, Invalid=3533, Unknown=0, NotChecked=0, Total=4290 [2024-11-28 03:35:15,316 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 725 mSDsluCounter, 1452 mSDsCounter, 0 mSdLazyCounter, 2756 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 1556 SdHoareTripleChecker+Invalid, 2857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 2756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:35:15,316 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 1556 Invalid, 2857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 2756 Invalid, 0 Unknown, 0 Unchecked, 47.8s Time] [2024-11-28 03:35:15,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1165 states. [2024-11-28 03:35:15,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1165 to 875. [2024-11-28 03:35:15,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 875 states, 718 states have (on average 1.2395543175487465) internal successors, (890), 726 states have internal predecessors, (890), 108 states have call successors, (108), 48 states have call predecessors, (108), 48 states have return successors, (108), 100 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-28 03:35:15,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1106 transitions. [2024-11-28 03:35:15,492 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1106 transitions. Word has length 126 [2024-11-28 03:35:15,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:35:15,493 INFO L471 AbstractCegarLoop]: Abstraction has 875 states and 1106 transitions. [2024-11-28 03:35:15,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 33 states have (on average 3.6363636363636362) internal successors, (120), 30 states have internal predecessors, (120), 7 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) [2024-11-28 03:35:15,493 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1106 transitions. [2024-11-28 03:35:15,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-28 03:35:15,495 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:35:15,495 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] [2024-11-28 03:35:15,505 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2024-11-28 03:35:15,705 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (24)] Ended with exit code 0 [2024-11-28 03:35:15,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 03:35:15,896 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:35:15,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:35:15,897 INFO L85 PathProgramCache]: Analyzing trace with hash 805188578, now seen corresponding path program 1 times [2024-11-28 03:35:15,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:35:15,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1711543085] [2024-11-28 03:35:15,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:35:15,897 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:35:15,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:35:15,899 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:35:15,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2024-11-28 03:35:16,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:35:16,266 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:35:16,268 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:35:16,541 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2024-11-28 03:35:16,541 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:35:16,542 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:35:16,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1711543085] [2024-11-28 03:35:16,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1711543085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:35:16,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:35:16,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:35:16,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656461558] [2024-11-28 03:35:16,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:35:16,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:35:16,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:35:16,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:35:16,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:35:16,544 INFO L87 Difference]: Start difference. First operand 875 states and 1106 transitions. Second operand has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-28 03:35:17,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:35:17,753 INFO L93 Difference]: Finished difference Result 1469 states and 1843 transitions. [2024-11-28 03:35:17,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:35:17,754 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 126 [2024-11-28 03:35:17,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:35:17,758 INFO L225 Difference]: With dead ends: 1469 [2024-11-28 03:35:17,758 INFO L226 Difference]: Without dead ends: 654 [2024-11-28 03:35:17,760 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:35:17,761 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 1 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:35:17,761 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 593 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:35:17,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2024-11-28 03:35:17,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 615. [2024-11-28 03:35:17,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 509 states have (on average 1.2337917485265226) internal successors, (628), 515 states have internal predecessors, (628), 70 states have call successors, (70), 35 states have call predecessors, (70), 35 states have return successors, (70), 64 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 03:35:17,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 768 transitions. [2024-11-28 03:35:17,936 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 768 transitions. Word has length 126 [2024-11-28 03:35:17,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:35:17,937 INFO L471 AbstractCegarLoop]: Abstraction has 615 states and 768 transitions. [2024-11-28 03:35:17,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-28 03:35:17,937 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 768 transitions. [2024-11-28 03:35:17,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-28 03:35:17,939 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:35:17,939 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] [2024-11-28 03:35:17,948 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2024-11-28 03:35:18,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:35:18,140 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:35:18,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:35:18,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1544209661, now seen corresponding path program 1 times [2024-11-28 03:35:18,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:35:18,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1174382070] [2024-11-28 03:35:18,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:35:18,142 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:35:18,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:35:18,145 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:35:18,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2024-11-28 03:35:18,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:35:18,644 INFO L256 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-28 03:35:18,652 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:35:18,831 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 03:35:19,994 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 [2024-11-28 03:35:22,477 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:35:22,477 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 138 treesize of output 65 [2024-11-28 03:35:23,181 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:35:23,182 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 138 treesize of output 65 [2024-11-28 03:35:24,120 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:35:24,121 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 133 treesize of output 75 [2024-11-28 03:35:25,578 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:35:25,578 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 148 treesize of output 78 [2024-11-28 03:35:26,755 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:35:26,756 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 148 treesize of output 78 [2024-11-28 03:35:27,916 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:35:27,916 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 148 treesize of output 78 [2024-11-28 03:35:30,850 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:35:30,851 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 137 treesize of output 71 [2024-11-28 03:35:30,995 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:35:30,996 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 144 treesize of output 92 [2024-11-28 03:35:31,593 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:35:31,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 168 treesize of output 126 [2024-11-28 03:35:32,764 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:35:32,765 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 184 treesize of output 129 [2024-11-28 03:35:32,916 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:35:32,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 219 treesize of output 75 [2024-11-28 03:35:33,363 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 120 proven. 88 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-28 03:35:33,363 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:35:34,941 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:35:34,941 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:35:34,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1174382070] [2024-11-28 03:35:34,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1174382070] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:35:34,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:35:34,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [19] total 23 [2024-11-28 03:35:34,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627683496] [2024-11-28 03:35:34,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:35:34,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:35:34,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:35:34,942 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:35:34,942 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:35:34,943 INFO L87 Difference]: Start difference. First operand 615 states and 768 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (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) [2024-11-28 03:35:38,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:35:38,709 INFO L93 Difference]: Finished difference Result 1218 states and 1529 transitions. [2024-11-28 03:35:38,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:35:38,710 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (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 126 [2024-11-28 03:35:38,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:35:38,713 INFO L225 Difference]: With dead ends: 1218 [2024-11-28 03:35:38,713 INFO L226 Difference]: Without dead ends: 681 [2024-11-28 03:35:38,714 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=85, Invalid=467, Unknown=0, NotChecked=0, Total=552 [2024-11-28 03:35:38,714 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 98 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:35:38,714 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 280 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-28 03:35:38,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2024-11-28 03:35:38,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 571. [2024-11-28 03:35:38,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 465 states have (on average 1.217204301075269) internal successors, (566), 471 states have internal predecessors, (566), 70 states have call successors, (70), 35 states have call predecessors, (70), 35 states have return successors, (70), 64 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 03:35:38,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 706 transitions. [2024-11-28 03:35:38,869 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 706 transitions. Word has length 126 [2024-11-28 03:35:38,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:35:38,869 INFO L471 AbstractCegarLoop]: Abstraction has 571 states and 706 transitions. [2024-11-28 03:35:38,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (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) [2024-11-28 03:35:38,869 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 706 transitions. [2024-11-28 03:35:38,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-28 03:35:38,870 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:35:38,871 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] [2024-11-28 03:35:38,881 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2024-11-28 03:35:39,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:35:39,071 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:35:39,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:35:39,072 INFO L85 PathProgramCache]: Analyzing trace with hash -340077382, now seen corresponding path program 1 times [2024-11-28 03:35:39,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:35:39,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [58005530] [2024-11-28 03:35:39,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:35:39,072 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:35:39,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:35:39,074 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:35:39,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2024-11-28 03:35:39,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:35:39,425 INFO L256 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:35:39,427 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:35:39,488 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:35:39,488 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:35:39,488 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:35:39,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [58005530] [2024-11-28 03:35:39,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [58005530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:35:39,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:35:39,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:35:39,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909887615] [2024-11-28 03:35:39,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:35:39,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:35:39,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:35:39,490 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:35:39,491 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:35:39,491 INFO L87 Difference]: Start difference. First operand 571 states and 706 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2024-11-28 03:35:39,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:35:39,770 INFO L93 Difference]: Finished difference Result 1066 states and 1321 transitions. [2024-11-28 03:35:39,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:35:39,771 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 127 [2024-11-28 03:35:39,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:35:39,775 INFO L225 Difference]: With dead ends: 1066 [2024-11-28 03:35:39,775 INFO L226 Difference]: Without dead ends: 573 [2024-11-28 03:35:39,777 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:35:39,778 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 0 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:35:39,779 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 273 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:35:39,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2024-11-28 03:35:39,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 573. [2024-11-28 03:35:39,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 467 states have (on average 1.2162740899357602) internal successors, (568), 473 states have internal predecessors, (568), 70 states have call successors, (70), 35 states have call predecessors, (70), 35 states have return successors, (70), 64 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-28 03:35:39,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 708 transitions. [2024-11-28 03:35:39,940 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 708 transitions. Word has length 127 [2024-11-28 03:35:39,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:35:39,941 INFO L471 AbstractCegarLoop]: Abstraction has 573 states and 708 transitions. [2024-11-28 03:35:39,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2024-11-28 03:35:39,941 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 708 transitions. [2024-11-28 03:35:39,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-28 03:35:39,943 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:35:39,943 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] [2024-11-28 03:35:39,951 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2024-11-28 03:35:40,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:35:40,144 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:35:40,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:35:40,144 INFO L85 PathProgramCache]: Analyzing trace with hash -926883396, now seen corresponding path program 1 times [2024-11-28 03:35:40,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:35:40,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1990463104] [2024-11-28 03:35:40,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:35:40,145 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:35:40,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:35:40,147 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:35:40,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2024-11-28 03:35:40,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:35:40,633 INFO L256 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-28 03:35:40,638 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:35:40,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 03:35:41,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 16 [2024-11-28 03:35:43,903 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:35:43,903 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 56 treesize of output 31 [2024-11-28 03:35:45,308 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:35:45,309 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 52 treesize of output 31 [2024-11-28 03:35:45,384 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:35:45,385 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 59 treesize of output 52 [2024-11-28 03:35:45,791 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:35:45,791 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 83 treesize of output 68 [2024-11-28 03:35:46,637 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:35:46,637 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 99 treesize of output 71 [2024-11-28 03:35:48,395 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 225 proven. 36 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-28 03:35:48,395 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:35:49,877 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:35:49,877 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:35:49,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1990463104] [2024-11-28 03:35:49,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1990463104] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:35:49,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:35:49,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [23] total 25 [2024-11-28 03:35:49,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967892112] [2024-11-28 03:35:49,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:35:49,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:35:49,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:35:49,879 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:35:49,879 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=506, Unknown=0, NotChecked=0, Total=600 [2024-11-28 03:35:49,879 INFO L87 Difference]: Start difference. First operand 573 states and 708 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 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) [2024-11-28 03:35:54,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:35:54,574 INFO L93 Difference]: Finished difference Result 1254 states and 1542 transitions. [2024-11-28 03:35:54,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:35:54,575 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 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 127 [2024-11-28 03:35:54,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:35:54,578 INFO L225 Difference]: With dead ends: 1254 [2024-11-28 03:35:54,578 INFO L226 Difference]: Without dead ends: 759 [2024-11-28 03:35:54,579 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=106, Invalid=650, Unknown=0, NotChecked=0, Total=756 [2024-11-28 03:35:54,579 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 87 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:35:54,580 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 633 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-28 03:35:54,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2024-11-28 03:35:54,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 652. [2024-11-28 03:35:54,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 540 states have (on average 1.2296296296296296) internal successors, (664), 547 states have internal predecessors, (664), 74 states have call successors, (74), 37 states have call predecessors, (74), 37 states have return successors, (74), 67 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-28 03:35:54,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 812 transitions. [2024-11-28 03:35:54,684 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 812 transitions. Word has length 127 [2024-11-28 03:35:54,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:35:54,685 INFO L471 AbstractCegarLoop]: Abstraction has 652 states and 812 transitions. [2024-11-28 03:35:54,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 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) [2024-11-28 03:35:54,685 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 812 transitions. [2024-11-28 03:35:54,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-28 03:35:54,691 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:35:54,691 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] [2024-11-28 03:35:54,697 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Ended with exit code 0 [2024-11-28 03:35:54,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:35:54,891 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:35:54,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:35:54,892 INFO L85 PathProgramCache]: Analyzing trace with hash -663686300, now seen corresponding path program 1 times [2024-11-28 03:35:54,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:35:54,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [171002628] [2024-11-28 03:35:54,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:35:54,892 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:35:54,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:35:54,894 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:35:54,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2024-11-28 03:35:55,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:35:55,344 INFO L256 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-28 03:35:55,349 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:35:55,738 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 03:35:56,993 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 78 treesize of output 32 [2024-11-28 03:35:57,400 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 73 treesize of output 42 [2024-11-28 03:35:58,209 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:35:58,210 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 88 treesize of output 45 [2024-11-28 03:35:58,846 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:35:58,846 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 88 treesize of output 45 [2024-11-28 03:35:59,487 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:35:59,488 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 83 treesize of output 55 [2024-11-28 03:36:01,191 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:36:01,191 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 139 treesize of output 85 [2024-11-28 03:36:01,556 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:36:01,557 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 92 [2024-11-28 03:36:01,991 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:36:01,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 170 treesize of output 126 [2024-11-28 03:36:02,993 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:36:02,993 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 186 treesize of output 129 [2024-11-28 03:36:03,806 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:36:03,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 267 treesize of output 99 [2024-11-28 03:36:04,403 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 155 proven. 129 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-28 03:36:04,403 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:36:05,528 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:36:05,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [171002628] [2024-11-28 03:36:05,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [171002628] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:36:05,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [66346479] [2024-11-28 03:36:05,528 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:36:05,528 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 03:36:05,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 03:36:05,530 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 03:36:05,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2024-11-28 03:36:07,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:36:07,397 INFO L256 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-28 03:36:07,403 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:36:09,229 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-28 03:36:12,392 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 59 treesize of output 38 [2024-11-28 03:36:13,599 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:36:13,600 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 67 treesize of output 49 [2024-11-28 03:36:14,994 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:36:14,994 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 78 treesize of output 52 [2024-11-28 03:36:15,955 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:36:15,956 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 78 treesize of output 52 [2024-11-28 03:36:16,913 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:36:16,913 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 75 treesize of output 60 [2024-11-28 03:36:19,610 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:36:19,610 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 125 treesize of output 90 [2024-11-28 03:36:20,333 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:36:20,334 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 10 case distinctions, treesize of input 128 treesize of output 95 [2024-11-28 03:36:21,120 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:36:21,120 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 143 treesize of output 124 [2024-11-28 03:36:22,686 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:36:22,686 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 155 treesize of output 127 [2024-11-28 03:36:23,248 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:36:23,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 228 treesize of output 104 [2024-11-28 03:36:23,355 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 155 proven. 129 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-28 03:36:23,355 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:36:23,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [66346479] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:36:23,922 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:36:23,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18] total 31 [2024-11-28 03:36:23,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808758026] [2024-11-28 03:36:23,922 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:36:23,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-28 03:36:23,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:36:23,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-28 03:36:23,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=1059, Unknown=0, NotChecked=0, Total=1260 [2024-11-28 03:36:23,924 INFO L87 Difference]: Start difference. First operand 652 states and 812 transitions. Second operand has 32 states, 30 states have (on average 4.366666666666666) internal successors, (131), 28 states have internal predecessors, (131), 10 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 9 states have call predecessors, (28), 10 states have call successors, (28) [2024-11-28 03:36:56,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:37:02,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.84s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:37:06,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:37:09,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:37:10,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:37:19,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:37:29,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:37:29,026 INFO L93 Difference]: Finished difference Result 1615 states and 2026 transitions. [2024-11-28 03:37:29,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-28 03:37:29,027 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 30 states have (on average 4.366666666666666) internal successors, (131), 28 states have internal predecessors, (131), 10 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 9 states have call predecessors, (28), 10 states have call successors, (28) Word has length 127 [2024-11-28 03:37:29,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:37:29,032 INFO L225 Difference]: With dead ends: 1615 [2024-11-28 03:37:29,032 INFO L226 Difference]: Without dead ends: 1028 [2024-11-28 03:37:29,034 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 269 SyntacticMatches, 4 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1089 ImplicationChecksByTransitivity, 20.3s TimeCoverageRelationStatistics Valid=871, Invalid=3551, Unknown=0, NotChecked=0, Total=4422 [2024-11-28 03:37:29,034 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 763 mSDsluCounter, 1664 mSDsCounter, 0 mSdLazyCounter, 3075 mSolverCounterSat, 124 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 1788 SdHoareTripleChecker+Invalid, 3200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 3075 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:37:29,035 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [763 Valid, 1788 Invalid, 3200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 3075 Invalid, 1 Unknown, 0 Unchecked, 54.7s Time] [2024-11-28 03:37:29,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2024-11-28 03:37:29,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 543. [2024-11-28 03:37:29,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 444 states have (on average 1.2207207207207207) internal successors, (542), 449 states have internal predecessors, (542), 65 states have call successors, (65), 33 states have call predecessors, (65), 33 states have return successors, (65), 60 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-28 03:37:29,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 672 transitions. [2024-11-28 03:37:29,180 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 672 transitions. Word has length 127 [2024-11-28 03:37:29,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:37:29,180 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 672 transitions. [2024-11-28 03:37:29,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 30 states have (on average 4.366666666666666) internal successors, (131), 28 states have internal predecessors, (131), 10 states have call successors, (28), 10 states have call predecessors, (28), 10 states have return successors, (28), 9 states have call predecessors, (28), 10 states have call successors, (28) [2024-11-28 03:37:29,180 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 672 transitions. [2024-11-28 03:37:29,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-28 03:37:29,182 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:37:29,182 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] [2024-11-28 03:37:29,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (30)] Ended with exit code 0 [2024-11-28 03:37:29,392 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2024-11-28 03:37:29,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:37:29,583 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:37:29,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:37:29,583 INFO L85 PathProgramCache]: Analyzing trace with hash -298533859, now seen corresponding path program 1 times [2024-11-28 03:37:29,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:37:29,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1960931777] [2024-11-28 03:37:29,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:37:29,584 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:37:29,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:37:29,586 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:37:29,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2024-11-28 03:37:30,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:37:30,066 INFO L256 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-28 03:37:30,072 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:37:30,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 03:37:31,975 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 78 treesize of output 32 [2024-11-28 03:37:32,644 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 78 treesize of output 32 [2024-11-28 03:37:33,297 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 78 treesize of output 32 [2024-11-28 03:37:33,947 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 78 treesize of output 32 [2024-11-28 03:37:34,597 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 78 treesize of output 32 [2024-11-28 03:37:36,157 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 119 treesize of output 59 [2024-11-28 03:37:36,398 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:37:36,398 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 126 treesize of output 75 [2024-11-28 03:37:36,850 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:37:36,850 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 141 treesize of output 78 [2024-11-28 03:37:37,168 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:37:37,168 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 141 treesize of output 78 [2024-11-28 03:37:37,684 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:37:37,685 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 170 treesize of output 62 [2024-11-28 03:37:38,484 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 107 proven. 33 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-28 03:37:38,484 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:37:40,690 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:37:40,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1960931777] [2024-11-28 03:37:40,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1960931777] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:37:40,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1996596674] [2024-11-28 03:37:40,690 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:37:40,690 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 03:37:40,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 03:37:40,692 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 03:37:40,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2024-11-28 03:37:42,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:37:42,979 INFO L256 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-28 03:37:42,985 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:37:44,388 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 15 treesize of output 1 [2024-11-28 03:37:49,479 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 [2024-11-28 03:37:50,298 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 [2024-11-28 03:37:51,111 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 [2024-11-28 03:37:51,945 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 [2024-11-28 03:37:52,820 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 59 treesize of output 38 [2024-11-28 03:37:56,527 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:37:56,527 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 109 treesize of output 68 [2024-11-28 03:37:57,265 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:37:57,266 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 112 treesize of output 73 [2024-11-28 03:37:58,480 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:37:58,481 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 123 treesize of output 76 [2024-11-28 03:37:59,013 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:37:59,014 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 123 treesize of output 76 [2024-11-28 03:38:00,223 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:38:00,223 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 174 treesize of output 78 [2024-11-28 03:38:00,621 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 203 proven. 33 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-28 03:38:00,622 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:38:03,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1996596674] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:38:03,000 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:38:03,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 20] total 33 [2024-11-28 03:38:03,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922048748] [2024-11-28 03:38:03,000 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:38:03,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-28 03:38:03,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:38:03,001 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-28 03:38:03,002 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=290, Invalid=1602, Unknown=0, NotChecked=0, Total=1892 [2024-11-28 03:38:03,003 INFO L87 Difference]: Start difference. First operand 543 states and 672 transitions. Second operand has 34 states, 32 states have (on average 3.875) internal successors, (124), 31 states have internal predecessors, (124), 7 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 5 states have call predecessors, (28), 7 states have call successors, (28) [2024-11-28 03:38:36,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:38:36,963 INFO L93 Difference]: Finished difference Result 1405 states and 1752 transitions. [2024-11-28 03:38:36,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-28 03:38:36,964 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 32 states have (on average 3.875) internal successors, (124), 31 states have internal predecessors, (124), 7 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 5 states have call predecessors, (28), 7 states have call successors, (28) Word has length 128 [2024-11-28 03:38:36,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:38:36,968 INFO L225 Difference]: With dead ends: 1405 [2024-11-28 03:38:36,968 INFO L226 Difference]: Without dead ends: 865 [2024-11-28 03:38:36,970 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 269 SyntacticMatches, 3 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1031 ImplicationChecksByTransitivity, 21.1s TimeCoverageRelationStatistics Valid=591, Invalid=3191, Unknown=0, NotChecked=0, Total=3782 [2024-11-28 03:38:36,971 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 386 mSDsluCounter, 1140 mSDsCounter, 0 mSdLazyCounter, 2629 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 1214 SdHoareTripleChecker+Invalid, 2705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 2629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:38:36,971 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 1214 Invalid, 2705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 2629 Invalid, 0 Unknown, 0 Unchecked, 27.4s Time] [2024-11-28 03:38:36,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-11-28 03:38:37,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 538. [2024-11-28 03:38:37,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 439 states have (on average 1.2209567198177675) internal successors, (536), 444 states have internal predecessors, (536), 65 states have call successors, (65), 33 states have call predecessors, (65), 33 states have return successors, (65), 60 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-28 03:38:37,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 666 transitions. [2024-11-28 03:38:37,115 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 666 transitions. Word has length 128 [2024-11-28 03:38:37,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:38:37,116 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 666 transitions. [2024-11-28 03:38:37,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 32 states have (on average 3.875) internal successors, (124), 31 states have internal predecessors, (124), 7 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 5 states have call predecessors, (28), 7 states have call successors, (28) [2024-11-28 03:38:37,116 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 666 transitions. [2024-11-28 03:38:37,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-28 03:38:37,121 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:38:37,121 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] [2024-11-28 03:38:37,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2024-11-28 03:38:37,330 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (32)] Ended with exit code 0 [2024-11-28 03:38:37,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 03:38:37,522 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:38:37,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:38:37,522 INFO L85 PathProgramCache]: Analyzing trace with hash -2139255617, now seen corresponding path program 1 times [2024-11-28 03:38:37,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:38:37,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1213634170] [2024-11-28 03:38:37,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:37,523 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:38:37,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:38:37,525 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:38:37,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2024-11-28 03:38:37,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:38:37,910 INFO L256 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:38:37,912 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:38:37,929 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 [2024-11-28 03:38:38,010 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:38:38,010 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:38:38,010 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:38:38,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1213634170] [2024-11-28 03:38:38,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1213634170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:38:38,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:38:38,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:38:38,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425359004] [2024-11-28 03:38:38,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:38:38,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:38:38,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:38:38,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:38:38,011 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:38:38,012 INFO L87 Difference]: Start difference. First operand 538 states and 666 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2024-11-28 03:38:38,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:38:38,237 INFO L93 Difference]: Finished difference Result 1073 states and 1329 transitions. [2024-11-28 03:38:38,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:38:38,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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 129 [2024-11-28 03:38:38,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:38:38,241 INFO L225 Difference]: With dead ends: 1073 [2024-11-28 03:38:38,241 INFO L226 Difference]: Without dead ends: 538 [2024-11-28 03:38:38,242 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:38:38,243 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 0 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:38:38,243 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 272 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:38:38,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2024-11-28 03:38:38,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2024-11-28 03:38:38,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 439 states have (on average 1.214123006833713) internal successors, (533), 444 states have internal predecessors, (533), 65 states have call successors, (65), 33 states have call predecessors, (65), 33 states have return successors, (65), 60 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-28 03:38:38,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 663 transitions. [2024-11-28 03:38:38,364 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 663 transitions. Word has length 129 [2024-11-28 03:38:38,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:38:38,364 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 663 transitions. [2024-11-28 03:38:38,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2024-11-28 03:38:38,365 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 663 transitions. [2024-11-28 03:38:38,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-28 03:38:38,366 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:38:38,366 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] [2024-11-28 03:38:38,381 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Ended with exit code 0 [2024-11-28 03:38:38,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:38:38,567 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:38:38,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:38:38,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1568905665, now seen corresponding path program 1 times [2024-11-28 03:38:38,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:38:38,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1609397344] [2024-11-28 03:38:38,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:38,568 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:38:38,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:38:38,571 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:38:38,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2024-11-28 03:38:39,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:38:39,057 INFO L256 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-28 03:38:39,062 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:38:39,080 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 03:38:39,416 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 [2024-11-28 03:38:39,932 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:38:39,932 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 [2024-11-28 03:38:40,330 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:38:40,330 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 [2024-11-28 03:38:40,739 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:38:40,739 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 [2024-11-28 03:38:41,977 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:38:41,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 41 [2024-11-28 03:38:42,065 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 54 treesize of output 53 [2024-11-28 03:38:42,350 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:38:42,351 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 72 treesize of output 87 [2024-11-28 03:38:43,035 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:38:43,035 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 88 treesize of output 90 [2024-11-28 03:38:43,843 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 237 proven. 27 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-28 03:38:43,844 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:38:44,794 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:38:44,794 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:38:44,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1609397344] [2024-11-28 03:38:44,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1609397344] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:38:44,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:38:44,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 13 [2024-11-28 03:38:44,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085641853] [2024-11-28 03:38:44,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:38:44,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:38:44,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:38:44,796 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:38:44,796 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:38:44,796 INFO L87 Difference]: Start difference. First operand 538 states and 663 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2024-11-28 03:38:47,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:38:47,713 INFO L93 Difference]: Finished difference Result 1156 states and 1420 transitions. [2024-11-28 03:38:47,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:38:47,714 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 129 [2024-11-28 03:38:47,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:38:47,717 INFO L225 Difference]: With dead ends: 1156 [2024-11-28 03:38:47,717 INFO L226 Difference]: Without dead ends: 621 [2024-11-28 03:38:47,718 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:38:47,718 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 73 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:38:47,718 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 409 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-28 03:38:47,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2024-11-28 03:38:47,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 537. [2024-11-28 03:38:47,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 438 states have (on average 1.2123287671232876) internal successors, (531), 443 states have internal predecessors, (531), 65 states have call successors, (65), 33 states have call predecessors, (65), 33 states have return successors, (65), 60 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-28 03:38:47,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 661 transitions. [2024-11-28 03:38:47,856 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 661 transitions. Word has length 129 [2024-11-28 03:38:47,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:38:47,856 INFO L471 AbstractCegarLoop]: Abstraction has 537 states and 661 transitions. [2024-11-28 03:38:47,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2024-11-28 03:38:47,857 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 661 transitions. [2024-11-28 03:38:47,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-28 03:38:47,858 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:38:47,858 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] [2024-11-28 03:38:47,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2024-11-28 03:38:48,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:38:48,059 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:38:48,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:38:48,060 INFO L85 PathProgramCache]: Analyzing trace with hash 289041987, now seen corresponding path program 1 times [2024-11-28 03:38:48,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:38:48,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [463297033] [2024-11-28 03:38:48,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:48,060 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:38:48,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:38:48,063 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:38:48,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2024-11-28 03:38:48,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:38:48,546 INFO L256 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 03:38:48,551 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:38:48,566 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 03:38:48,860 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 [2024-11-28 03:38:49,060 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 [2024-11-28 03:38:49,259 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 26 treesize of output 25 [2024-11-28 03:38:50,149 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:38:50,150 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 37 treesize of output 28 [2024-11-28 03:38:50,201 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 44 treesize of output 40 [2024-11-28 03:38:50,445 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:38:50,445 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 67 treesize of output 73 [2024-11-28 03:38:50,986 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:38:50,987 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 78 treesize of output 77 [2024-11-28 03:38:51,682 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 241 proven. 21 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-28 03:38:51,682 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:38:52,634 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:38:52,634 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:38:52,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [463297033] [2024-11-28 03:38:52,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [463297033] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:38:52,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:38:52,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 12 [2024-11-28 03:38:52,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002846282] [2024-11-28 03:38:52,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:38:52,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:38:52,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:38:52,636 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:38:52,636 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:38:52,636 INFO L87 Difference]: Start difference. First operand 537 states and 661 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2024-11-28 03:38:55,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:38:55,647 INFO L93 Difference]: Finished difference Result 1180 states and 1445 transitions. [2024-11-28 03:38:55,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:38:55,648 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 129 [2024-11-28 03:38:55,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:38:55,652 INFO L225 Difference]: With dead ends: 1180 [2024-11-28 03:38:55,652 INFO L226 Difference]: Without dead ends: 646 [2024-11-28 03:38:55,653 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:38:55,654 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 73 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:38:55,654 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 438 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-28 03:38:55,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2024-11-28 03:38:55,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 530. [2024-11-28 03:38:55,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 431 states have (on average 1.211136890951276) internal successors, (522), 436 states have internal predecessors, (522), 65 states have call successors, (65), 33 states have call predecessors, (65), 33 states have return successors, (65), 60 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-28 03:38:55,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 652 transitions. [2024-11-28 03:38:55,795 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 652 transitions. Word has length 129 [2024-11-28 03:38:55,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:38:55,796 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 652 transitions. [2024-11-28 03:38:55,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2024-11-28 03:38:55,796 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 652 transitions. [2024-11-28 03:38:55,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-28 03:38:55,797 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:38:55,797 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] [2024-11-28 03:38:55,803 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Ended with exit code 0 [2024-11-28 03:38:55,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:38:55,997 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:38:55,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:38:55,998 INFO L85 PathProgramCache]: Analyzing trace with hash -785819357, now seen corresponding path program 1 times [2024-11-28 03:38:55,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:38:55,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1796564498] [2024-11-28 03:38:55,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:55,998 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:38:55,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:38:56,000 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:38:56,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2024-11-28 03:38:56,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:38:56,499 INFO L256 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-28 03:38:56,505 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:38:56,529 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 03:38:56,854 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 [2024-11-28 03:38:57,599 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:38:57,599 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 [2024-11-28 03:38:58,002 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:38:58,003 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 [2024-11-28 03:38:58,405 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:38:58,405 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 37 treesize of output 39 [2024-11-28 03:38:59,709 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:38:59,710 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 48 treesize of output 42 [2024-11-28 03:38:59,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 54 [2024-11-28 03:39:00,674 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:39:00,675 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 93 treesize of output 68 [2024-11-28 03:39:01,111 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:39:01,112 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 93 treesize of output 68 [2024-11-28 03:39:02,620 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 254 proven. 45 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-28 03:39:02,620 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:39:04,227 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:39:04,227 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:39:04,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1796564498] [2024-11-28 03:39:04,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1796564498] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:39:04,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:39:04,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [15] total 18 [2024-11-28 03:39:04,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841229425] [2024-11-28 03:39:04,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:39:04,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:39:04,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:39:04,229 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:39:04,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:39:04,229 INFO L87 Difference]: Start difference. First operand 530 states and 652 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 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) [2024-11-28 03:39:07,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:39:07,617 INFO L93 Difference]: Finished difference Result 1180 states and 1451 transitions. [2024-11-28 03:39:07,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:39:07,618 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 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 129 [2024-11-28 03:39:07,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:39:07,621 INFO L225 Difference]: With dead ends: 1180 [2024-11-28 03:39:07,621 INFO L226 Difference]: Without dead ends: 653 [2024-11-28 03:39:07,622 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 240 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2024-11-28 03:39:07,623 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 224 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:39:07,623 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 419 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-28 03:39:07,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2024-11-28 03:39:07,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 375. [2024-11-28 03:39:07,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 294 states have (on average 1.1598639455782314) internal successors, (341), 295 states have internal predecessors, (341), 53 states have call successors, (53), 27 states have call predecessors, (53), 27 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-28 03:39:07,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 447 transitions. [2024-11-28 03:39:07,739 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 447 transitions. Word has length 129 [2024-11-28 03:39:07,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:39:07,739 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 447 transitions. [2024-11-28 03:39:07,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 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) [2024-11-28 03:39:07,740 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 447 transitions. [2024-11-28 03:39:07,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-28 03:39:07,740 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:39:07,741 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] [2024-11-28 03:39:07,748 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Ended with exit code 0 [2024-11-28 03:39:07,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:39:07,941 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:39:07,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:39:07,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1420500962, now seen corresponding path program 1 times [2024-11-28 03:39:07,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:39:07,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1622035815] [2024-11-28 03:39:07,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:39:07,942 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:39:07,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:39:07,944 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:39:07,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2024-11-28 03:39:08,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:39:08,464 INFO L256 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 03:39:08,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:39:08,487 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 03:39:08,877 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 29 treesize of output 13 [2024-11-28 03:39:09,078 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 29 treesize of output 13 [2024-11-28 03:39:09,431 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 13 [2024-11-28 03:39:09,464 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:39:09,464 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 32 treesize of output 34 [2024-11-28 03:39:09,624 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:39:09,625 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 56 treesize of output 59 [2024-11-28 03:39:10,039 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:39:10,039 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 72 treesize of output 62 [2024-11-28 03:39:10,714 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:39:10,714 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 62 treesize of output 20 [2024-11-28 03:39:10,832 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 195 proven. 18 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2024-11-28 03:39:10,832 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:39:12,436 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 21 proven. 18 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-28 03:39:12,436 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:39:12,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1622035815] [2024-11-28 03:39:12,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1622035815] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:39:12,437 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:39:12,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 12 [2024-11-28 03:39:12,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754611172] [2024-11-28 03:39:12,437 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:39:12,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:39:12,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:39:12,438 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:39:12,438 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:39:12,439 INFO L87 Difference]: Start difference. First operand 375 states and 447 transitions. Second operand has 12 states, 10 states have (on average 9.0) internal successors, (90), 12 states have internal predecessors, (90), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-28 03:39:23,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:39:23,255 INFO L93 Difference]: Finished difference Result 1114 states and 1310 transitions. [2024-11-28 03:39:23,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 03:39:23,257 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 9.0) internal successors, (90), 12 states have internal predecessors, (90), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) Word has length 130 [2024-11-28 03:39:23,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:39:23,262 INFO L225 Difference]: With dead ends: 1114 [2024-11-28 03:39:23,262 INFO L226 Difference]: Without dead ends: 742 [2024-11-28 03:39:23,263 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 247 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=159, Invalid=393, Unknown=0, NotChecked=0, Total=552 [2024-11-28 03:39:23,264 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 326 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 787 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:39:23,265 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 420 Invalid, 845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 787 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2024-11-28 03:39:23,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2024-11-28 03:39:23,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 375. [2024-11-28 03:39:23,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 294 states have (on average 1.1564625850340136) internal successors, (340), 295 states have internal predecessors, (340), 53 states have call successors, (53), 27 states have call predecessors, (53), 27 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-28 03:39:23,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 446 transitions. [2024-11-28 03:39:23,369 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 446 transitions. Word has length 130 [2024-11-28 03:39:23,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:39:23,370 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 446 transitions. [2024-11-28 03:39:23,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 9.0) internal successors, (90), 12 states have internal predecessors, (90), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (21), 2 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-28 03:39:23,370 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 446 transitions. [2024-11-28 03:39:23,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-28 03:39:23,371 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:39:23,371 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] [2024-11-28 03:39:23,382 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Ended with exit code 0 [2024-11-28 03:39:23,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:39:23,572 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:39:23,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:39:23,572 INFO L85 PathProgramCache]: Analyzing trace with hash -719436384, now seen corresponding path program 1 times [2024-11-28 03:39:23,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:39:23,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [151283816] [2024-11-28 03:39:23,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:39:23,573 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:39:23,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:39:23,578 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:39:23,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2024-11-28 03:39:24,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:39:24,136 INFO L256 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 03:39:24,141 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:39:24,163 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-28 03:39:25,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 20 [2024-11-28 03:39:25,098 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 45 treesize of output 32 [2024-11-28 03:39:25,307 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:39:25,307 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 66 [2024-11-28 03:39:25,831 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:39:25,831 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 87 treesize of output 80 [2024-11-28 03:39:27,970 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:39:27,970 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 130 treesize of output 52 [2024-11-28 03:39:28,407 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2024-11-28 03:39:28,407 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:39:28,407 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:39:28,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [151283816] [2024-11-28 03:39:28,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [151283816] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:39:28,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:39:28,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 03:39:28,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000203775] [2024-11-28 03:39:28,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:39:28,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:39:28,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:39:28,408 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:39:28,409 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:39:28,409 INFO L87 Difference]: Start difference. First operand 375 states and 446 transitions. Second operand has 13 states, 12 states have (on average 5.75) internal successors, (69), 13 states have internal predecessors, (69), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-28 03:39:47,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:39:47,268 INFO L93 Difference]: Finished difference Result 814 states and 945 transitions. [2024-11-28 03:39:47,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-28 03:39:47,269 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.75) internal successors, (69), 13 states have internal predecessors, (69), 3 states have call successors, (14), 2 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 130 [2024-11-28 03:39:47,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:39:47,273 INFO L225 Difference]: With dead ends: 814 [2024-11-28 03:39:47,273 INFO L226 Difference]: Without dead ends: 812 [2024-11-28 03:39:47,274 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=175, Invalid=695, Unknown=0, NotChecked=0, Total=870 [2024-11-28 03:39:47,274 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 258 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 1198 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 1241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1198 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:39:47,274 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 613 Invalid, 1241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1198 Invalid, 1 Unknown, 0 Unchecked, 15.8s Time] [2024-11-28 03:39:47,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2024-11-28 03:39:47,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 378. [2024-11-28 03:39:47,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 297 states have (on average 1.1548821548821548) internal successors, (343), 298 states have internal predecessors, (343), 53 states have call successors, (53), 27 states have call predecessors, (53), 27 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-28 03:39:47,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 449 transitions. [2024-11-28 03:39:47,434 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 449 transitions. Word has length 130 [2024-11-28 03:39:47,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:39:47,435 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 449 transitions. [2024-11-28 03:39:47,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.75) internal successors, (69), 13 states have internal predecessors, (69), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-28 03:39:47,435 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 449 transitions. [2024-11-28 03:39:47,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-28 03:39:47,436 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:39:47,436 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] [2024-11-28 03:39:47,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2024-11-28 03:39:47,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:39:47,637 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:39:47,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:39:47,638 INFO L85 PathProgramCache]: Analyzing trace with hash -717589342, now seen corresponding path program 1 times [2024-11-28 03:39:47,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:39:47,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1050160930] [2024-11-28 03:39:47,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:39:47,639 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:39:47,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:39:47,641 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:39:47,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2024-11-28 03:39:48,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:39:48,224 INFO L256 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 03:39:48,227 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:39:48,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 03:39:48,259 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 21 treesize of output 21 [2024-11-28 03:39:48,699 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:39:48,699 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:39:48,699 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:39:48,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1050160930] [2024-11-28 03:39:48,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1050160930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:39:48,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:39:48,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:39:48,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244379673] [2024-11-28 03:39:48,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:39:48,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:39:48,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:39:48,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:39:48,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:39:48,701 INFO L87 Difference]: Start difference. First operand 378 states and 449 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) [2024-11-28 03:39:51,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:39:51,732 INFO L93 Difference]: Finished difference Result 1020 states and 1204 transitions. [2024-11-28 03:39:51,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:39:51,733 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 [2024-11-28 03:39:51,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:39:51,736 INFO L225 Difference]: With dead ends: 1020 [2024-11-28 03:39:51,736 INFO L226 Difference]: Without dead ends: 645 [2024-11-28 03:39:51,737 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:39:51,737 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 96 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:39:51,737 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 532 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-28 03:39:51,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2024-11-28 03:39:51,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 378. [2024-11-28 03:39:51,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 297 states have (on average 1.1515151515151516) internal successors, (342), 298 states have internal predecessors, (342), 53 states have call successors, (53), 27 states have call predecessors, (53), 27 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-28 03:39:51,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 448 transitions. [2024-11-28 03:39:51,864 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 448 transitions. Word has length 130 [2024-11-28 03:39:51,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:39:51,865 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 448 transitions. [2024-11-28 03:39:51,865 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) [2024-11-28 03:39:51,865 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 448 transitions. [2024-11-28 03:39:51,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-28 03:39:51,867 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:39:51,867 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] [2024-11-28 03:39:51,877 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Ended with exit code 0 [2024-11-28 03:39:52,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:39:52,068 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:39:52,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:39:52,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1057418020, now seen corresponding path program 1 times [2024-11-28 03:39:52,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:39:52,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1521737250] [2024-11-28 03:39:52,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:39:52,070 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:39:52,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:39:52,072 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:39:52,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2024-11-28 03:39:52,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:39:52,552 INFO L256 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:39:52,553 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:39:52,724 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:39:52,724 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:39:52,724 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:39:52,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1521737250] [2024-11-28 03:39:52,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1521737250] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:39:52,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:39:52,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:39:52,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259734192] [2024-11-28 03:39:52,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:39:52,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:39:52,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:39:52,726 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:39:52,726 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:39:52,726 INFO L87 Difference]: Start difference. First operand 378 states and 448 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) [2024-11-28 03:39:53,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:39:53,044 INFO L93 Difference]: Finished difference Result 756 states and 897 transitions. [2024-11-28 03:39:53,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:39:53,045 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 [2024-11-28 03:39:53,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:39:53,047 INFO L225 Difference]: With dead ends: 756 [2024-11-28 03:39:53,047 INFO L226 Difference]: Without dead ends: 381 [2024-11-28 03:39:53,048 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:39:53,048 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 0 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:39:53,048 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 524 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:39:53,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2024-11-28 03:39:53,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2024-11-28 03:39:53,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 300 states have (on average 1.15) internal successors, (345), 301 states have internal predecessors, (345), 53 states have call successors, (53), 27 states have call predecessors, (53), 27 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-28 03:39:53,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 451 transitions. [2024-11-28 03:39:53,152 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 451 transitions. Word has length 130 [2024-11-28 03:39:53,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:39:53,152 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 451 transitions. [2024-11-28 03:39:53,152 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) [2024-11-28 03:39:53,153 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 451 transitions. [2024-11-28 03:39:53,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-28 03:39:53,154 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:39:53,155 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] [2024-11-28 03:39:53,164 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Ended with exit code 0 [2024-11-28 03:39:53,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:39:53,355 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:39:53,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:39:53,356 INFO L85 PathProgramCache]: Analyzing trace with hash -307506328, now seen corresponding path program 1 times [2024-11-28 03:39:53,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:39:53,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [482558151] [2024-11-28 03:39:53,356 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:39:53,356 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 [2024-11-28 03:39:53,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:39:53,359 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:39:53,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2024-11-28 03:39:53,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:39:53,943 INFO L256 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 03:39:53,946 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:39:53,969 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 22 treesize of output 22 [2024-11-28 03:39:54,170 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:39:54,170 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 36 [2024-11-28 03:39:54,400 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:39:54,400 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 55 treesize of output 39 [2024-11-28 03:39:54,911 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:39:54,911 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 20 [2024-11-28 03:39:55,405 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:39:55,405 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:39:55,406 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:39:55,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [482558151] [2024-11-28 03:39:55,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [482558151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:39:55,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:39:55,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 03:39:55,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834297195] [2024-11-28 03:39:55,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:39:55,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:39:55,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:39:55,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:39:55,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:39:55,407 INFO L87 Difference]: Start difference. First operand 381 states and 451 transitions. Second operand has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 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) [2024-11-28 03:40:05,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:40:05,173 INFO L93 Difference]: Finished difference Result 1202 states and 1408 transitions. [2024-11-28 03:40:05,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:40:05,174 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 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 131 [2024-11-28 03:40:05,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:40:05,177 INFO L225 Difference]: With dead ends: 1202 [2024-11-28 03:40:05,177 INFO L226 Difference]: Without dead ends: 824 [2024-11-28 03:40:05,178 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 121 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:40:05,179 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 186 mSDsluCounter, 1034 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 1237 SdHoareTripleChecker+Invalid, 904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:40:05,179 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 1237 Invalid, 904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2024-11-28 03:40:05,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2024-11-28 03:40:05,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 376. [2024-11-28 03:40:05,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 295 states have (on average 1.1491525423728814) internal successors, (339), 296 states have internal predecessors, (339), 53 states have call successors, (53), 27 states have call predecessors, (53), 27 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-28 03:40:05,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 445 transitions. [2024-11-28 03:40:05,319 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 445 transitions. Word has length 131 [2024-11-28 03:40:05,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:40:05,319 INFO L471 AbstractCegarLoop]: Abstraction has 376 states and 445 transitions. [2024-11-28 03:40:05,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 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) [2024-11-28 03:40:05,319 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 445 transitions. [2024-11-28 03:40:05,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 03:40:05,320 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:40:05,321 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] [2024-11-28 03:40:05,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Ended with exit code 0 [2024-11-28 03:40:05,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:40:05,521 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:40:05,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:40:05,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1915642386, now seen corresponding path program 1 times [2024-11-28 03:40:05,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:40:05,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [331113211] [2024-11-28 03:40:05,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:40:05,522 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:40:05,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:40:05,525 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:40:05,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2024-11-28 03:40:05,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:40:05,978 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:40:05,979 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:40:06,232 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:40:06,233 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:40:06,233 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:40:06,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [331113211] [2024-11-28 03:40:06,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [331113211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:40:06,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:40:06,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:40:06,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729088738] [2024-11-28 03:40:06,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:40:06,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:40:06,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:40:06,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:40:06,234 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:40:06,234 INFO L87 Difference]: Start difference. First operand 376 states and 445 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 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) [2024-11-28 03:40:06,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:40:06,620 INFO L93 Difference]: Finished difference Result 753 states and 892 transitions. [2024-11-28 03:40:06,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:40:06,621 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 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 [2024-11-28 03:40:06,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:40:06,624 INFO L225 Difference]: With dead ends: 753 [2024-11-28 03:40:06,624 INFO L226 Difference]: Without dead ends: 380 [2024-11-28 03:40:06,625 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:40:06,626 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 0 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:40:06,626 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 646 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:40:06,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2024-11-28 03:40:06,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 377. [2024-11-28 03:40:06,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 296 states have (on average 1.1486486486486487) internal successors, (340), 297 states have internal predecessors, (340), 53 states have call successors, (53), 27 states have call predecessors, (53), 27 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-28 03:40:06,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 446 transitions. [2024-11-28 03:40:06,814 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 446 transitions. Word has length 132 [2024-11-28 03:40:06,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:40:06,815 INFO L471 AbstractCegarLoop]: Abstraction has 377 states and 446 transitions. [2024-11-28 03:40:06,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 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) [2024-11-28 03:40:06,815 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 446 transitions. [2024-11-28 03:40:06,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-28 03:40:06,816 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:40:06,816 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] [2024-11-28 03:40:06,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2024-11-28 03:40:07,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:40:07,017 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:40:07,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:40:07,017 INFO L85 PathProgramCache]: Analyzing trace with hash 970959659, now seen corresponding path program 1 times [2024-11-28 03:40:07,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:40:07,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [612217139] [2024-11-28 03:40:07,018 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:40:07,018 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:40:07,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:40:07,023 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:40:07,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2024-11-28 03:40:07,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:40:07,657 INFO L256 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 03:40:07,660 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:40:07,676 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 03:40:07,934 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:40:07,934 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 45 treesize of output 35 [2024-11-28 03:40:08,330 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:40:08,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 18 [2024-11-28 03:40:08,486 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:40:08,486 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:40:08,486 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:40:08,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [612217139] [2024-11-28 03:40:08,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [612217139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:40:08,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:40:08,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:40:08,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849740844] [2024-11-28 03:40:08,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:40:08,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:40:08,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:40:08,487 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:40:08,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:40:08,488 INFO L87 Difference]: Start difference. First operand 377 states and 446 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 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) [2024-11-28 03:40:14,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:40:14,436 INFO L93 Difference]: Finished difference Result 949 states and 1113 transitions. [2024-11-28 03:40:14,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:40:14,438 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 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 [2024-11-28 03:40:14,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:40:14,441 INFO L225 Difference]: With dead ends: 949 [2024-11-28 03:40:14,441 INFO L226 Difference]: Without dead ends: 575 [2024-11-28 03:40:14,441 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:40:14,442 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 63 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:40:14,442 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 534 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2024-11-28 03:40:14,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2024-11-28 03:40:14,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 420. [2024-11-28 03:40:14,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 339 states have (on average 1.135693215339233) internal successors, (385), 340 states have internal predecessors, (385), 53 states have call successors, (53), 27 states have call predecessors, (53), 27 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-28 03:40:14,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 491 transitions. [2024-11-28 03:40:14,557 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 491 transitions. Word has length 134 [2024-11-28 03:40:14,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:40:14,557 INFO L471 AbstractCegarLoop]: Abstraction has 420 states and 491 transitions. [2024-11-28 03:40:14,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 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) [2024-11-28 03:40:14,557 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 491 transitions. [2024-11-28 03:40:14,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-28 03:40:14,558 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:40:14,558 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] [2024-11-28 03:40:14,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2024-11-28 03:40:14,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:40:14,759 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:40:14,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:40:14,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1796818747, now seen corresponding path program 1 times [2024-11-28 03:40:14,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:40:14,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1084627351] [2024-11-28 03:40:14,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:40:14,760 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:40:14,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:40:14,762 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:40:14,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca487a6-c5b5-49af-989d-89ecfe772b06/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2024-11-28 03:40:15,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:40:15,561 INFO L256 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-28 03:40:15,566 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:40:15,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:40:15,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:40:15,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:40:15,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:40:15,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:40:15,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:40:15,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:40:15,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:40:15,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:40:15,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:40:15,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:40:15,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:40:15,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 58 [2024-11-28 03:40:16,161 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:40:16,162 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 58 treesize of output 22 [2024-11-28 03:40:17,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 03:40:18,647 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 16 [2024-11-28 03:40:19,680 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 34 treesize of output 16 [2024-11-28 03:40:19,755 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:40:19,755 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 37 [2024-11-28 03:40:20,214 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:40:20,215 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 65 treesize of output 62 [2024-11-28 03:40:26,462 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:40:26,462 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 111 treesize of output 77 [2024-11-28 03:40:38,087 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 181 proven. 18 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2024-11-28 03:40:38,087 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:40:49,580 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 03:40:49,580 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:40:49,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1084627351] [2024-11-28 03:40:49,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1084627351] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:40:49,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:40:49,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17] total 23 [2024-11-28 03:40:49,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647378793] [2024-11-28 03:40:49,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:40:49,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:40:49,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:40:49,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:40:49,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:40:49,582 INFO L87 Difference]: Start difference. First operand 420 states and 491 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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)