./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-3.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_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 642101326caa2098c0a839a00c9bcfc0200d095adff71c7c8d2e655beccf37a7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:00:45,633 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:00:45,690 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 11:00:45,695 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:00:45,695 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:00:45,717 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:00:45,717 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:00:45,718 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:00:45,718 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:00:45,718 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:00:45,719 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:00:45,719 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:00:45,719 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:00:45,719 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:00:45,719 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:00:45,719 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:00:45,719 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:00:45,720 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:00:45,720 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:00:45,720 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:00:45,720 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:00:45,720 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:00:45,720 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:00:45,720 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:00:45,720 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:00:45,720 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:00:45,720 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:00:45,720 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:00:45,720 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:00:45,721 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:00:45,721 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:00:45,721 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:00:45,721 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:00:45,721 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:00:45,721 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:00:45,721 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:00:45,721 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:00:45,721 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:00:45,721 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:00:45,722 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:00:45,722 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:00:45,722 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:00:45,722 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:00:45,722 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:00:45,722 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:00:45,722 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:00:45,722 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:00:45,722 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:00:45,722 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_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 642101326caa2098c0a839a00c9bcfc0200d095adff71c7c8d2e655beccf37a7 [2024-12-02 11:00:45,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:00:45,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:00:45,962 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:00:45,963 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:00:45,964 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:00:45,965 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-3.i [2024-12-02 11:00:48,815 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/data/c5871443b/b0a4def25ad0484ebd173533a459cd6f/FLAGe7ce60937 [2024-12-02 11:00:49,014 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:00:49,014 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-3.i [2024-12-02 11:00:49,021 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/data/c5871443b/b0a4def25ad0484ebd173533a459cd6f/FLAGe7ce60937 [2024-12-02 11:00:49,362 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/data/c5871443b/b0a4def25ad0484ebd173533a459cd6f [2024-12-02 11:00:49,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:00:49,365 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:00:49,366 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:00:49,366 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:00:49,369 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:00:49,370 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:00:49" (1/1) ... [2024-12-02 11:00:49,370 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68b72305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:49, skipping insertion in model container [2024-12-02 11:00:49,371 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:00:49" (1/1) ... [2024-12-02 11:00:49,383 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:00:49,478 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_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-3.i[912,925] [2024-12-02 11:00:49,523 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:00:49,532 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:00:49,542 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_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-3.i[912,925] [2024-12-02 11:00:49,561 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:00:49,575 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:00:49,576 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:49 WrapperNode [2024-12-02 11:00:49,576 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:00:49,577 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:00:49,577 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:00:49,577 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:00:49,582 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:49" (1/1) ... [2024-12-02 11:00:49,590 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:49" (1/1) ... [2024-12-02 11:00:49,616 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 147 [2024-12-02 11:00:49,616 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:00:49,617 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:00:49,617 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:00:49,617 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:00:49,626 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:49" (1/1) ... [2024-12-02 11:00:49,626 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:49" (1/1) ... [2024-12-02 11:00:49,628 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:49" (1/1) ... [2024-12-02 11:00:49,646 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 11:00:49,646 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:49" (1/1) ... [2024-12-02 11:00:49,647 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:49" (1/1) ... [2024-12-02 11:00:49,655 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:49" (1/1) ... [2024-12-02 11:00:49,656 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:49" (1/1) ... [2024-12-02 11:00:49,660 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:49" (1/1) ... [2024-12-02 11:00:49,663 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:49" (1/1) ... [2024-12-02 11:00:49,664 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:49" (1/1) ... [2024-12-02 11:00:49,669 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:00:49,669 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:00:49,670 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:00:49,670 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:00:49,671 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:49" (1/1) ... [2024-12-02 11:00:49,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:00:49,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:00:49,697 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:00:49,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:00:49,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:00:49,718 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 11:00:49,718 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 11:00:49,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:00:49,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:00:49,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:00:49,776 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:00:49,778 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:00:50,086 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-12-02 11:00:50,086 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:00:50,095 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:00:50,095 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 11:00:50,095 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:00:50 BoogieIcfgContainer [2024-12-02 11:00:50,095 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:00:50,098 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:00:50,098 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:00:50,102 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:00:50,102 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:00:49" (1/3) ... [2024-12-02 11:00:50,102 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2431bf48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:00:50, skipping insertion in model container [2024-12-02 11:00:50,103 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:49" (2/3) ... [2024-12-02 11:00:50,103 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2431bf48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:00:50, skipping insertion in model container [2024-12-02 11:00:50,103 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:00:50" (3/3) ... [2024-12-02 11:00:50,104 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_normal_file-3.i [2024-12-02 11:00:50,116 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:00:50,118 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_normal_file-3.i that has 2 procedures, 71 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 11:00:50,169 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:00:50,180 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;@50a298f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:00:50,180 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 11:00:50,184 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 53 states have (on average 1.509433962264151) internal successors, (80), 54 states have internal predecessors, (80), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 11:00:50,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-12-02 11:00:50,192 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:00:50,193 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:00:50,194 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:00:50,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:00:50,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1623939, now seen corresponding path program 1 times [2024-12-02 11:00:50,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:00:50,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107276964] [2024-12-02 11:00:50,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:00:50,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:00:50,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:00:50,426 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-12-02 11:00:50,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:00:50,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107276964] [2024-12-02 11:00:50,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107276964] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:00:50,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969101256] [2024-12-02 11:00:50,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:00:50,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:00:50,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:00:50,432 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:00:50,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 11:00:50,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:00:50,550 INFO L256 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 11:00:50,557 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:00:50,580 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-12-02 11:00:50,580 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:00:50,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [969101256] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:00:50,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:00:50,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 11:00:50,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153135569] [2024-12-02 11:00:50,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:00:50,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 11:00:50,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:00:50,605 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 11:00:50,605 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:00:50,608 INFO L87 Difference]: Start difference. First operand has 71 states, 53 states have (on average 1.509433962264151) internal successors, (80), 54 states have internal predecessors, (80), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 11:00:50,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:00:50,632 INFO L93 Difference]: Finished difference Result 135 states and 229 transitions. [2024-12-02 11:00:50,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 11:00:50,634 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 105 [2024-12-02 11:00:50,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:00:50,640 INFO L225 Difference]: With dead ends: 135 [2024-12-02 11:00:50,640 INFO L226 Difference]: Without dead ends: 67 [2024-12-02 11:00:50,643 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:00:50,646 INFO L435 NwaCegarLoop]: 102 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, 102 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:00:50,647 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:00:50,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2024-12-02 11:00:50,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2024-12-02 11:00:50,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 50 states have (on average 1.44) internal successors, (72), 50 states have internal predecessors, (72), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 11:00:50,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 102 transitions. [2024-12-02 11:00:50,684 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 102 transitions. Word has length 105 [2024-12-02 11:00:50,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:00:50,685 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 102 transitions. [2024-12-02 11:00:50,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 11:00:50,685 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 102 transitions. [2024-12-02 11:00:50,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-12-02 11:00:50,688 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:00:50,688 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:00:50,699 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 11:00:50,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 11:00:50,889 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:00:50,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:00:50,890 INFO L85 PathProgramCache]: Analyzing trace with hash -662991041, now seen corresponding path program 1 times [2024-12-02 11:00:50,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:00:50,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974578303] [2024-12-02 11:00:50,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:00:50,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:00:50,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:00:51,222 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 11:00:51,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:00:51,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974578303] [2024-12-02 11:00:51,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974578303] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:00:51,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:00:51,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:00:51,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979689341] [2024-12-02 11:00:51,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:00:51,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:00:51,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:00:51,224 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:00:51,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:00:51,224 INFO L87 Difference]: Start difference. First operand 67 states and 102 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 11:00:51,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:00:51,291 INFO L93 Difference]: Finished difference Result 195 states and 300 transitions. [2024-12-02 11:00:51,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:00:51,291 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 105 [2024-12-02 11:00:51,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:00:51,293 INFO L225 Difference]: With dead ends: 195 [2024-12-02 11:00:51,293 INFO L226 Difference]: Without dead ends: 131 [2024-12-02 11:00:51,293 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:00:51,294 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 61 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:00:51,294 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 179 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:00:51,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-12-02 11:00:51,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 129. [2024-12-02 11:00:51,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 96 states have (on average 1.4166666666666667) internal successors, (136), 96 states have internal predecessors, (136), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 11:00:51,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 196 transitions. [2024-12-02 11:00:51,316 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 196 transitions. Word has length 105 [2024-12-02 11:00:51,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:00:51,317 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 196 transitions. [2024-12-02 11:00:51,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 11:00:51,317 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 196 transitions. [2024-12-02 11:00:51,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 11:00:51,318 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:00:51,319 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:00:51,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 11:00:51,319 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:00:51,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:00:51,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1292298218, now seen corresponding path program 1 times [2024-12-02 11:00:51,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:00:51,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183708975] [2024-12-02 11:00:51,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:00:51,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:00:51,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:00:51,454 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 11:00:51,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:00:51,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183708975] [2024-12-02 11:00:51,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183708975] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:00:51,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:00:51,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:00:51,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899603173] [2024-12-02 11:00:51,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:00:51,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:00:51,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:00:51,456 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:00:51,456 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:00:51,456 INFO L87 Difference]: Start difference. First operand 129 states and 196 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 11:00:51,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:00:51,553 INFO L93 Difference]: Finished difference Result 373 states and 572 transitions. [2024-12-02 11:00:51,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:00:51,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 106 [2024-12-02 11:00:51,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:00:51,556 INFO L225 Difference]: With dead ends: 373 [2024-12-02 11:00:51,556 INFO L226 Difference]: Without dead ends: 247 [2024-12-02 11:00:51,557 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:00:51,558 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 86 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:00:51,559 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 257 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:00:51,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2024-12-02 11:00:51,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 245. [2024-12-02 11:00:51,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 180 states have (on average 1.4) internal successors, (252), 180 states have internal predecessors, (252), 60 states have call successors, (60), 4 states have call predecessors, (60), 4 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-12-02 11:00:51,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 372 transitions. [2024-12-02 11:00:51,591 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 372 transitions. Word has length 106 [2024-12-02 11:00:51,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:00:51,592 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 372 transitions. [2024-12-02 11:00:51,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 11:00:51,592 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 372 transitions. [2024-12-02 11:00:51,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 11:00:51,594 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:00:51,595 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:00:51,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 11:00:51,595 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:00:51,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:00:51,596 INFO L85 PathProgramCache]: Analyzing trace with hash 257019204, now seen corresponding path program 1 times [2024-12-02 11:00:51,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:00:51,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931420457] [2024-12-02 11:00:51,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:00:51,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:00:51,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:00:51,676 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 11:00:51,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:00:51,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931420457] [2024-12-02 11:00:51,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931420457] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:00:51,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:00:51,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:00:51,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388764380] [2024-12-02 11:00:51,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:00:51,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:00:51,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:00:51,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:00:51,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:00:51,678 INFO L87 Difference]: Start difference. First operand 245 states and 372 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 11:00:51,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:00:51,741 INFO L93 Difference]: Finished difference Result 605 states and 914 transitions. [2024-12-02 11:00:51,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:00:51,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 106 [2024-12-02 11:00:51,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:00:51,745 INFO L225 Difference]: With dead ends: 605 [2024-12-02 11:00:51,745 INFO L226 Difference]: Without dead ends: 363 [2024-12-02 11:00:51,746 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:00:51,747 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 43 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:00:51,748 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 216 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:00:51,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-12-02 11:00:51,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 281. [2024-12-02 11:00:51,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 216 states have (on average 1.4074074074074074) internal successors, (304), 216 states have internal predecessors, (304), 60 states have call successors, (60), 4 states have call predecessors, (60), 4 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-12-02 11:00:51,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 424 transitions. [2024-12-02 11:00:51,778 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 424 transitions. Word has length 106 [2024-12-02 11:00:51,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:00:51,779 INFO L471 AbstractCegarLoop]: Abstraction has 281 states and 424 transitions. [2024-12-02 11:00:51,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 11:00:51,779 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 424 transitions. [2024-12-02 11:00:51,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 11:00:51,781 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:00:51,781 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:00:51,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 11:00:51,781 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:00:51,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:00:51,782 INFO L85 PathProgramCache]: Analyzing trace with hash -453972667, now seen corresponding path program 1 times [2024-12-02 11:00:51,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:00:51,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513112514] [2024-12-02 11:00:51,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:00:51,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:00:51,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:00:52,922 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-12-02 11:00:52,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:00:52,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513112514] [2024-12-02 11:00:52,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513112514] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:00:52,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:00:52,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:00:52,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132456964] [2024-12-02 11:00:52,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:00:52,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:00:52,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:00:52,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:00:52,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:00:52,924 INFO L87 Difference]: Start difference. First operand 281 states and 424 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 11:00:53,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:00:53,930 INFO L93 Difference]: Finished difference Result 857 states and 1248 transitions. [2024-12-02 11:00:53,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 11:00:53,931 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 107 [2024-12-02 11:00:53,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:00:53,936 INFO L225 Difference]: With dead ends: 857 [2024-12-02 11:00:53,936 INFO L226 Difference]: Without dead ends: 579 [2024-12-02 11:00:53,937 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2024-12-02 11:00:53,938 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 253 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:00:53,938 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 329 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:00:53,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2024-12-02 11:00:54,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 351. [2024-12-02 11:00:54,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 282 states have (on average 1.4219858156028369) internal successors, (401), 282 states have internal predecessors, (401), 60 states have call successors, (60), 8 states have call predecessors, (60), 8 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-12-02 11:00:54,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 521 transitions. [2024-12-02 11:00:54,007 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 521 transitions. Word has length 107 [2024-12-02 11:00:54,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:00:54,008 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 521 transitions. [2024-12-02 11:00:54,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 11:00:54,008 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 521 transitions. [2024-12-02 11:00:54,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 11:00:54,009 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:00:54,010 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:00:54,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 11:00:54,010 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:00:54,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:00:54,010 INFO L85 PathProgramCache]: Analyzing trace with hash -2042320569, now seen corresponding path program 1 times [2024-12-02 11:00:54,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:00:54,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145700640] [2024-12-02 11:00:54,011 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:00:54,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:00:54,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:00:54,160 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 11:00:54,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:00:54,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145700640] [2024-12-02 11:00:54,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145700640] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:00:54,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:00:54,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:00:54,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197390946] [2024-12-02 11:00:54,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:00:54,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:00:54,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:00:54,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:00:54,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:00:54,163 INFO L87 Difference]: Start difference. First operand 351 states and 521 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 11:00:54,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:00:54,276 INFO L93 Difference]: Finished difference Result 851 states and 1264 transitions. [2024-12-02 11:00:54,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:00:54,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 107 [2024-12-02 11:00:54,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:00:54,280 INFO L225 Difference]: With dead ends: 851 [2024-12-02 11:00:54,280 INFO L226 Difference]: Without dead ends: 503 [2024-12-02 11:00:54,281 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:00:54,282 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 62 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:00:54,282 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 209 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:00:54,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2024-12-02 11:00:54,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 501. [2024-12-02 11:00:54,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 398 states have (on average 1.4095477386934674) internal successors, (561), 398 states have internal predecessors, (561), 90 states have call successors, (90), 12 states have call predecessors, (90), 12 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2024-12-02 11:00:54,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 741 transitions. [2024-12-02 11:00:54,342 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 741 transitions. Word has length 107 [2024-12-02 11:00:54,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:00:54,342 INFO L471 AbstractCegarLoop]: Abstraction has 501 states and 741 transitions. [2024-12-02 11:00:54,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 11:00:54,343 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 741 transitions. [2024-12-02 11:00:54,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 11:00:54,344 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:00:54,344 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:00:54,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 11:00:54,344 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:00:54,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:00:54,345 INFO L85 PathProgramCache]: Analyzing trace with hash 66668527, now seen corresponding path program 1 times [2024-12-02 11:00:54,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:00:54,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591427957] [2024-12-02 11:00:54,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:00:54,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:00:54,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:00:54,619 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 11:00:54,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:00:54,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591427957] [2024-12-02 11:00:54,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591427957] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:00:54,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:00:54,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:00:54,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030451353] [2024-12-02 11:00:54,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:00:54,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:00:54,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:00:54,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:00:54,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:00:54,620 INFO L87 Difference]: Start difference. First operand 501 states and 741 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 11:00:55,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:00:55,122 INFO L93 Difference]: Finished difference Result 1409 states and 2091 transitions. [2024-12-02 11:00:55,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:00:55,123 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 107 [2024-12-02 11:00:55,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:00:55,130 INFO L225 Difference]: With dead ends: 1409 [2024-12-02 11:00:55,130 INFO L226 Difference]: Without dead ends: 1159 [2024-12-02 11:00:55,131 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:00:55,132 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 298 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:00:55,132 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 470 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 11:00:55,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2024-12-02 11:00:55,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1143. [2024-12-02 11:00:55,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1143 states, 904 states have (on average 1.413716814159292) internal successors, (1278), 904 states have internal predecessors, (1278), 210 states have call successors, (210), 28 states have call predecessors, (210), 28 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2024-12-02 11:00:55,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1143 states to 1143 states and 1698 transitions. [2024-12-02 11:00:55,257 INFO L78 Accepts]: Start accepts. Automaton has 1143 states and 1698 transitions. Word has length 107 [2024-12-02 11:00:55,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:00:55,258 INFO L471 AbstractCegarLoop]: Abstraction has 1143 states and 1698 transitions. [2024-12-02 11:00:55,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 11:00:55,258 INFO L276 IsEmpty]: Start isEmpty. Operand 1143 states and 1698 transitions. [2024-12-02 11:00:55,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 11:00:55,260 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:00:55,260 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:00:55,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 11:00:55,260 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:00:55,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:00:55,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1351691309, now seen corresponding path program 1 times [2024-12-02 11:00:55,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:00:55,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311658511] [2024-12-02 11:00:55,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:00:55,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:00:55,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:00:55,587 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 11:00:55,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:00:55,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311658511] [2024-12-02 11:00:55,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311658511] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:00:55,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:00:55,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 11:00:55,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187149156] [2024-12-02 11:00:55,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:00:55,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 11:00:55,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:00:55,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 11:00:55,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:00:55,588 INFO L87 Difference]: Start difference. First operand 1143 states and 1698 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 11:00:56,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:00:56,117 INFO L93 Difference]: Finished difference Result 2305 states and 3417 transitions. [2024-12-02 11:00:56,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 11:00:56,118 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 108 [2024-12-02 11:00:56,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:00:56,125 INFO L225 Difference]: With dead ends: 2305 [2024-12-02 11:00:56,125 INFO L226 Difference]: Without dead ends: 1165 [2024-12-02 11:00:56,127 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:00:56,128 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 367 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:00:56,128 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 464 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 11:00:56,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1165 states. [2024-12-02 11:00:56,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1165 to 1145. [2024-12-02 11:00:56,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1145 states, 906 states have (on average 1.4094922737306843) internal successors, (1277), 906 states have internal predecessors, (1277), 210 states have call successors, (210), 28 states have call predecessors, (210), 28 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2024-12-02 11:00:56,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1145 states to 1145 states and 1697 transitions. [2024-12-02 11:00:56,236 INFO L78 Accepts]: Start accepts. Automaton has 1145 states and 1697 transitions. Word has length 108 [2024-12-02 11:00:56,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:00:56,237 INFO L471 AbstractCegarLoop]: Abstraction has 1145 states and 1697 transitions. [2024-12-02 11:00:56,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 11:00:56,237 INFO L276 IsEmpty]: Start isEmpty. Operand 1145 states and 1697 transitions. [2024-12-02 11:00:56,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 11:00:56,238 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:00:56,239 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:00:56,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 11:00:56,239 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:00:56,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:00:56,239 INFO L85 PathProgramCache]: Analyzing trace with hash 685923855, now seen corresponding path program 1 times [2024-12-02 11:00:56,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:00:56,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105446178] [2024-12-02 11:00:56,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:00:56,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:00:56,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:00:56,987 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 87 proven. 21 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 11:00:56,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:00:56,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105446178] [2024-12-02 11:00:56,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105446178] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:00:56,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078844687] [2024-12-02 11:00:56,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:00:56,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:00:56,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:00:56,990 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:00:56,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 11:00:57,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:00:57,178 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 11:00:57,181 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:00:57,937 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 310 proven. 21 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2024-12-02 11:00:57,938 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:00:58,956 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 111 proven. 39 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2024-12-02 11:00:58,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2078844687] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:00:58,956 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:00:58,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 16, 15] total 35 [2024-12-02 11:00:58,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128078836] [2024-12-02 11:00:58,956 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:00:58,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-12-02 11:00:58,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:00:58,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-12-02 11:00:58,958 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=309, Invalid=881, Unknown=0, NotChecked=0, Total=1190 [2024-12-02 11:00:58,958 INFO L87 Difference]: Start difference. First operand 1145 states and 1697 transitions. Second operand has 35 states, 34 states have (on average 3.0) internal successors, (102), 33 states have internal predecessors, (102), 10 states have call successors, (32), 5 states have call predecessors, (32), 12 states have return successors, (33), 12 states have call predecessors, (33), 10 states have call successors, (33) [2024-12-02 11:01:00,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:01:00,327 INFO L93 Difference]: Finished difference Result 2139 states and 3046 transitions. [2024-12-02 11:01:00,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-12-02 11:01:00,327 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 3.0) internal successors, (102), 33 states have internal predecessors, (102), 10 states have call successors, (32), 5 states have call predecessors, (32), 12 states have return successors, (33), 12 states have call predecessors, (33), 10 states have call successors, (33) Word has length 108 [2024-12-02 11:01:00,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:01:00,332 INFO L225 Difference]: With dead ends: 2139 [2024-12-02 11:01:00,332 INFO L226 Difference]: Without dead ends: 1297 [2024-12-02 11:01:00,334 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 197 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 875 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1097, Invalid=2563, Unknown=0, NotChecked=0, Total=3660 [2024-12-02 11:01:00,335 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 440 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:01:00,335 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 445 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:01:00,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1297 states. [2024-12-02 11:01:00,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1297 to 527. [2024-12-02 11:01:00,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 406 states have (on average 1.3226600985221675) internal successors, (537), 406 states have internal predecessors, (537), 90 states have call successors, (90), 30 states have call predecessors, (90), 30 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2024-12-02 11:01:00,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 717 transitions. [2024-12-02 11:01:00,410 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 717 transitions. Word has length 108 [2024-12-02 11:01:00,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:01:00,410 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 717 transitions. [2024-12-02 11:01:00,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 3.0) internal successors, (102), 33 states have internal predecessors, (102), 10 states have call successors, (32), 5 states have call predecessors, (32), 12 states have return successors, (33), 12 states have call predecessors, (33), 10 states have call successors, (33) [2024-12-02 11:01:00,410 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 717 transitions. [2024-12-02 11:01:00,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 11:01:00,411 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:01:00,411 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:01:00,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 11:01:00,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-12-02 11:01:00,612 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:01:00,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:01:00,613 INFO L85 PathProgramCache]: Analyzing trace with hash 206212576, now seen corresponding path program 1 times [2024-12-02 11:01:00,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:01:00,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408214294] [2024-12-02 11:01:00,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:01:00,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:01:00,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:01:00,742 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 11:01:00,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:01:00,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408214294] [2024-12-02 11:01:00,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408214294] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:01:00,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:01:00,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:01:00,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424055437] [2024-12-02 11:01:00,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:01:00,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:01:00,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:01:00,744 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:01:00,744 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:01:00,744 INFO L87 Difference]: Start difference. First operand 527 states and 717 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 11:01:01,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:01:01,049 INFO L93 Difference]: Finished difference Result 1356 states and 1873 transitions. [2024-12-02 11:01:01,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:01:01,049 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 108 [2024-12-02 11:01:01,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:01:01,054 INFO L225 Difference]: With dead ends: 1356 [2024-12-02 11:01:01,054 INFO L226 Difference]: Without dead ends: 1091 [2024-12-02 11:01:01,055 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:01:01,055 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 177 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:01:01,056 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 366 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:01:01,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1091 states. [2024-12-02 11:01:01,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1091 to 955. [2024-12-02 11:01:01,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 955 states, 754 states have (on average 1.343501326259947) internal successors, (1013), 754 states have internal predecessors, (1013), 150 states have call successors, (150), 50 states have call predecessors, (150), 50 states have return successors, (150), 150 states have call predecessors, (150), 150 states have call successors, (150) [2024-12-02 11:01:01,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 955 states to 955 states and 1313 transitions. [2024-12-02 11:01:01,198 INFO L78 Accepts]: Start accepts. Automaton has 955 states and 1313 transitions. Word has length 108 [2024-12-02 11:01:01,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:01:01,199 INFO L471 AbstractCegarLoop]: Abstraction has 955 states and 1313 transitions. [2024-12-02 11:01:01,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 11:01:01,199 INFO L276 IsEmpty]: Start isEmpty. Operand 955 states and 1313 transitions. [2024-12-02 11:01:01,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 11:01:01,200 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:01:01,200 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:01:01,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 11:01:01,200 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:01:01,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:01:01,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1387213154, now seen corresponding path program 1 times [2024-12-02 11:01:01,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:01:01,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159698682] [2024-12-02 11:01:01,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:01:01,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:01:01,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 11:01:01,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1056670686] [2024-12-02 11:01:01,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:01:01,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:01:01,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:01:01,238 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:01:01,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 11:01:01,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:01:01,333 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:01:01,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:01:01,418 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 11:01:01,418 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 11:01:01,419 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 11:01:01,429 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 11:01:01,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-12-02 11:01:01,623 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:01:01,674 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 11:01:01,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 11:01:01 BoogieIcfgContainer [2024-12-02 11:01:01,677 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 11:01:01,677 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 11:01:01,677 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 11:01:01,677 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 11:01:01,678 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:00:50" (3/4) ... [2024-12-02 11:01:01,680 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 11:01:01,681 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 11:01:01,681 INFO L158 Benchmark]: Toolchain (without parser) took 12316.31ms. Allocated memory was 142.6MB in the beginning and 377.5MB in the end (delta: 234.9MB). Free memory was 115.7MB in the beginning and 289.6MB in the end (delta: -173.9MB). Peak memory consumption was 61.1MB. Max. memory is 16.1GB. [2024-12-02 11:01:01,681 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:01:01,682 INFO L158 Benchmark]: CACSL2BoogieTranslator took 210.52ms. Allocated memory is still 142.6MB. Free memory was 115.7MB in the beginning and 101.7MB in the end (delta: 13.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 11:01:01,682 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.68ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 98.3MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:01:01,682 INFO L158 Benchmark]: Boogie Preprocessor took 52.07ms. Allocated memory is still 142.6MB. Free memory was 98.3MB in the beginning and 93.6MB in the end (delta: 4.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:01:01,682 INFO L158 Benchmark]: RCFGBuilder took 425.94ms. Allocated memory is still 142.6MB. Free memory was 93.6MB in the beginning and 71.8MB in the end (delta: 21.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 11:01:01,683 INFO L158 Benchmark]: TraceAbstraction took 11579.09ms. Allocated memory was 142.6MB in the beginning and 377.5MB in the end (delta: 234.9MB). Free memory was 71.2MB in the beginning and 289.6MB in the end (delta: -218.5MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. [2024-12-02 11:01:01,683 INFO L158 Benchmark]: Witness Printer took 3.46ms. Allocated memory is still 377.5MB. Free memory was 289.6MB in the beginning and 289.6MB in the end (delta: 49.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:01:01,684 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 210.52ms. Allocated memory is still 142.6MB. Free memory was 115.7MB in the beginning and 101.7MB in the end (delta: 13.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.68ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 98.3MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 52.07ms. Allocated memory is still 142.6MB. Free memory was 98.3MB in the beginning and 93.6MB in the end (delta: 4.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 425.94ms. Allocated memory is still 142.6MB. Free memory was 93.6MB in the beginning and 71.8MB in the end (delta: 21.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 11579.09ms. Allocated memory was 142.6MB in the beginning and 377.5MB in the end (delta: 234.9MB). Free memory was 71.2MB in the beginning and 289.6MB in the end (delta: -218.5MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. * Witness Printer took 3.46ms. Allocated memory is still 377.5MB. Free memory was 289.6MB in the beginning and 289.6MB in the end (delta: 49.2kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 80, overapproximation of someBinaryDOUBLEComparisonOperation at line 75, overapproximation of someBinaryDOUBLEComparisonOperation at line 82, overapproximation of someBinaryDOUBLEComparisonOperation at line 117, overapproximation of someBinaryDOUBLEComparisonOperation at line 101, overapproximation of someBinaryDOUBLEComparisonOperation at line 102, overapproximation of someBinaryDOUBLEComparisonOperation at line 56, overapproximation of someBinaryDOUBLEComparisonOperation at line 117, overapproximation of someBinaryDOUBLEComparisonOperation at line 104, overapproximation of someBinaryDOUBLEComparisonOperation at line 64. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = -64; [L23] unsigned char var_1_3 = 1; [L24] signed char var_1_5 = -32; [L25] unsigned short int var_1_6 = 256; [L26] unsigned long int var_1_10 = 256; [L27] double var_1_12 = 8.2; [L28] signed char var_1_13 = 16; [L29] signed char var_1_14 = 10; [L30] double var_1_15 = 199.125; [L31] double var_1_16 = 9.4; [L32] double var_1_17 = 9999999999999.6; [L33] unsigned char var_1_20 = 32; [L34] unsigned char var_1_21 = 128; [L35] unsigned char var_1_22 = 64; [L36] unsigned long int var_1_23 = 64; [L37] unsigned long int last_1_var_1_10 = 256; [L38] unsigned char last_1_var_1_20 = 32; VAL [isInitial=0, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=16, var_1_14=10, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=1, var_1_5=-32, var_1_6=256] [L121] isInitial = 1 [L122] FCALL initially() [L124] CALL updateLastVariables() [L113] last_1_var_1_10 = var_1_10 [L114] last_1_var_1_20 = var_1_20 VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=16, var_1_14=10, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=1, var_1_5=-32, var_1_6=256] [L124] RET updateLastVariables() [L125] CALL updateVariables() [L88] var_1_3 = __VERIFIER_nondet_uchar() [L89] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=16, var_1_14=10, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_5=-32, var_1_6=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=16, var_1_14=10, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_5=-32, var_1_6=256] [L89] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=16, var_1_14=10, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_5=-32, var_1_6=256] [L90] CALL assume_abort_if_not(var_1_3 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=16, var_1_14=10, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=-32, var_1_6=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=16, var_1_14=10, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=-32, var_1_6=256] [L90] RET assume_abort_if_not(var_1_3 <= 1) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=16, var_1_14=10, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=-32, var_1_6=256] [L91] var_1_5 = __VERIFIER_nondet_char() [L92] CALL assume_abort_if_not(var_1_5 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=16, var_1_14=10, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=16, var_1_14=10, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L92] RET assume_abort_if_not(var_1_5 >= -127) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=16, var_1_14=10, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L93] CALL assume_abort_if_not(var_1_5 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=16, var_1_14=10, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=16, var_1_14=10, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L93] RET assume_abort_if_not(var_1_5 <= 126) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=16, var_1_14=10, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L94] var_1_13 = __VERIFIER_nondet_char() [L95] CALL assume_abort_if_not(var_1_13 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=-1, var_1_14=10, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=-1, var_1_14=10, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L95] RET assume_abort_if_not(var_1_13 >= -1) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=-1, var_1_14=10, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L96] CALL assume_abort_if_not(var_1_13 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=-1, var_1_14=10, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=-1, var_1_14=10, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L96] RET assume_abort_if_not(var_1_13 <= 127) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=-1, var_1_14=10, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L97] var_1_14 = __VERIFIER_nondet_char() [L98] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=-1, var_1_14=119, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=-1, var_1_14=119, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L98] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=-1, var_1_14=119, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L99] CALL assume_abort_if_not(var_1_14 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=-1, var_1_14=119, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=-1, var_1_14=119, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L99] RET assume_abort_if_not(var_1_14 <= 127) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=-1, var_1_14=119, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L100] var_1_15 = __VERIFIER_nondet_double() [L101] CALL assume_abort_if_not((var_1_15 >= -922337.2036854776000e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854776000e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=-1, var_1_14=119, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=-1, var_1_14=119, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L101] RET assume_abort_if_not((var_1_15 >= -922337.2036854776000e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854776000e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=-1, var_1_14=119, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L102] CALL assume_abort_if_not(var_1_15 != 0.0F) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=-1, var_1_14=119, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=-1, var_1_14=119, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L102] RET assume_abort_if_not(var_1_15 != 0.0F) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=-1, var_1_14=119, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L103] var_1_16 = __VERIFIER_nondet_double() [L104] CALL assume_abort_if_not((var_1_16 >= -922337.2036854765600e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=-1, var_1_14=119, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=-1, var_1_14=119, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L104] RET assume_abort_if_not((var_1_16 >= -922337.2036854765600e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=-1, var_1_14=119, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L105] var_1_21 = __VERIFIER_nondet_uchar() [L106] CALL assume_abort_if_not(var_1_21 >= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=-1, var_1_14=119, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=127, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=-1, var_1_14=119, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=127, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L106] RET assume_abort_if_not(var_1_21 >= 127) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=-1, var_1_14=119, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=127, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L107] CALL assume_abort_if_not(var_1_21 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=-1, var_1_14=119, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=127, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=-1, var_1_14=119, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=127, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L107] RET assume_abort_if_not(var_1_21 <= 254) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=-1, var_1_14=119, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=127, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L108] var_1_22 = __VERIFIER_nondet_uchar() [L109] CALL assume_abort_if_not(var_1_22 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=-1, var_1_14=119, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=127, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=-1, var_1_14=119, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=127, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L109] RET assume_abort_if_not(var_1_22 >= 0) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=-1, var_1_14=119, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=127, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L110] CALL assume_abort_if_not(var_1_22 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=-1, var_1_14=119, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=127, var_1_22=0, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=-1, var_1_14=119, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=127, var_1_22=0, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L110] RET assume_abort_if_not(var_1_22 <= 127) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=-1, var_1_14=119, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=127, var_1_22=0, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L125] RET updateVariables() [L126] CALL step() [L42] COND FALSE !(\read(var_1_3)) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=-1, var_1_14=119, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=127, var_1_22=0, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L47] signed long int stepLocal_2 = var_1_5 * var_1_13; VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, stepLocal_2=-8, var_1_10=256, var_1_12=41/5, var_1_13=-1, var_1_14=119, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=127, var_1_22=0, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L48] COND TRUE stepLocal_2 > last_1_var_1_10 [L49] var_1_20 = ((((((((var_1_21 - var_1_14)) > ((var_1_22 + 8))) ? ((var_1_21 - var_1_14)) : ((var_1_22 + 8)))) < 0 ) ? -(((((var_1_21 - var_1_14)) > ((var_1_22 + 8))) ? ((var_1_21 - var_1_14)) : ((var_1_22 + 8)))) : (((((var_1_21 - var_1_14)) > ((var_1_22 + 8))) ? ((var_1_21 - var_1_14)) : ((var_1_22 + 8)))))) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=-1, var_1_14=119, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=8, var_1_21=127, var_1_22=0, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L51] COND FALSE !((((((var_1_14 - var_1_20)) < (var_1_5)) ? ((var_1_14 - var_1_20)) : (var_1_5))) < var_1_20) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=-1, var_1_14=119, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=8, var_1_21=127, var_1_22=0, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L56] unsigned char stepLocal_1 = var_1_17 <= var_1_17; VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, stepLocal_1=0, var_1_10=256, var_1_12=41/5, var_1_13=-1, var_1_14=119, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=8, var_1_21=127, var_1_22=0, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L57] COND FALSE !(stepLocal_1 || var_1_3) [L62] var_1_12 = var_1_16 VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=2, var_1_13=-1, var_1_14=119, var_1_16=2, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=8, var_1_21=127, var_1_22=0, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L64] COND FALSE !(99999.8f < var_1_17) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=2, var_1_13=-1, var_1_14=119, var_1_16=2, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=8, var_1_21=127, var_1_22=0, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L75] COND FALSE !((var_1_17 + var_1_12) <= var_1_17) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=2, var_1_13=-1, var_1_14=119, var_1_16=2, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=8, var_1_21=127, var_1_22=0, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L80] EXPR var_1_6 ^ var_1_20 VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=2, var_1_13=-1, var_1_14=119, var_1_16=2, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=8, var_1_21=127, var_1_22=0, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L80] unsigned long int stepLocal_0 = (var_1_6 ^ var_1_20) + var_1_23; [L81] COND TRUE var_1_20 <= stepLocal_0 VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=2, var_1_13=-1, var_1_14=119, var_1_16=2, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=8, var_1_21=127, var_1_22=0, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L82] COND FALSE !(var_1_12 == var_1_12) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=2, var_1_13=-1, var_1_14=119, var_1_16=2, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=8, var_1_21=127, var_1_22=0, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L126] RET step() [L127] CALL, EXPR property() [L117] EXPR (((99999.8f < var_1_17) ? ((! var_1_3) ? ((var_1_17 >= (var_1_17 / 2.5f)) ? (var_1_3 ? (var_1_1 == ((signed char) var_1_5)) : (var_1_1 == ((signed char) var_1_5))) : 1) : 1) : 1) && (var_1_3 ? (((last_1_var_1_10 + (var_1_5 + last_1_var_1_20)) >= last_1_var_1_20) ? (var_1_6 == ((unsigned short int) last_1_var_1_20)) : 1) : 1)) && ((var_1_20 <= ((var_1_6 ^ var_1_20) + var_1_23)) ? ((var_1_12 == var_1_12) ? (var_1_10 == ((unsigned long int) 0u)) : 1) : 1) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=2, var_1_13=-1, var_1_14=119, var_1_16=2, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=8, var_1_21=127, var_1_22=0, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L117-L118] return (((((((99999.8f < var_1_17) ? ((! var_1_3) ? ((var_1_17 >= (var_1_17 / 2.5f)) ? (var_1_3 ? (var_1_1 == ((signed char) var_1_5)) : (var_1_1 == ((signed char) var_1_5))) : 1) : 1) : 1) && (var_1_3 ? (((last_1_var_1_10 + (var_1_5 + last_1_var_1_20)) >= last_1_var_1_20) ? (var_1_6 == ((unsigned short int) last_1_var_1_20)) : 1) : 1)) && ((var_1_20 <= ((var_1_6 ^ var_1_20) + var_1_23)) ? ((var_1_12 == var_1_12) ? (var_1_10 == ((unsigned long int) 0u)) : 1) : 1)) && (((var_1_17 <= var_1_17) || var_1_3) ? (((var_1_17 / var_1_15) > 25.25) ? (var_1_12 == ((double) 128.5)) : 1) : (var_1_12 == ((double) var_1_16)))) && (((((((var_1_14 - var_1_20)) < (var_1_5)) ? ((var_1_14 - var_1_20)) : (var_1_5))) < var_1_20) ? (var_1_3 ? (var_1_17 == ((double) 128.1)) : 1) : 1)) && (((var_1_5 * var_1_13) > last_1_var_1_10) ? (var_1_20 == ((unsigned char) ((((((((var_1_21 - var_1_14)) > ((var_1_22 + 8))) ? ((var_1_21 - var_1_14)) : ((var_1_22 + 8)))) < 0 ) ? -(((((var_1_21 - var_1_14)) > ((var_1_22 + 8))) ? ((var_1_21 - var_1_14)) : ((var_1_22 + 8)))) : (((((var_1_21 - var_1_14)) > ((var_1_22 + 8))) ? ((var_1_21 - var_1_14)) : ((var_1_22 + 8)))))))) : 1)) && (((var_1_17 + var_1_12) <= var_1_17) ? ((var_1_6 >= var_1_6) ? (var_1_23 == ((unsigned long int) var_1_20)) : 1) : 1) ; [L127] RET, EXPR property() [L127] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=2, var_1_13=-1, var_1_14=119, var_1_16=2, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=8, var_1_21=127, var_1_22=0, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] [L19] reach_error() VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=2, var_1_13=-1, var_1_14=119, var_1_16=2, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=8, var_1_21=127, var_1_22=0, var_1_23=64, var_1_3=0, var_1_5=8, var_1_6=256] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 71 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.5s, OverallIterations: 11, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1793 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1787 mSDsluCounter, 3037 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1952 mSDsCounter, 545 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1483 IncrementalHoareTripleChecker+Invalid, 2028 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 545 mSolverCounterUnsat, 1085 mSDtfsCounter, 1483 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 439 GetRequests, 332 SyntacticMatches, 1 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 942 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1145occurred in iteration=8, InterpolantAutomatonStates: 77, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 10 MinimizatonAttempts, 1258 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 1498 NumberOfCodeBlocks, 1498 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1375 ConstructedInterpolants, 0 QuantifiedInterpolants, 5492 SizeOfPredicates, 6 NumberOfNonLiveVariables, 506 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 13 InterpolantComputations, 9 PerfectInterpolantSequences, 5351/5460 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-02 11:01:01,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 642101326caa2098c0a839a00c9bcfc0200d095adff71c7c8d2e655beccf37a7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:01:03,598 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:01:03,680 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 11:01:03,685 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:01:03,686 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:01:03,708 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:01:03,709 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:01:03,709 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:01:03,709 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:01:03,709 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:01:03,709 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:01:03,709 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:01:03,710 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:01:03,710 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:01:03,710 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:01:03,710 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:01:03,710 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:01:03,710 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:01:03,710 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:01:03,710 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:01:03,710 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:01:03,710 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:01:03,711 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:01:03,711 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 11:01:03,711 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 11:01:03,711 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 11:01:03,711 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:01:03,711 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:01:03,711 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:01:03,711 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:01:03,711 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:01:03,711 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:01:03,711 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:01:03,711 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:01:03,711 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:01:03,712 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:01:03,712 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:01:03,712 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:01:03,712 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:01:03,712 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:01:03,712 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:01:03,712 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:01:03,712 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:01:03,712 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:01:03,712 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 11:01:03,712 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 11:01:03,712 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:01:03,713 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:01:03,713 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:01:03,713 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:01:03,713 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_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 642101326caa2098c0a839a00c9bcfc0200d095adff71c7c8d2e655beccf37a7 [2024-12-02 11:01:03,946 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:01:03,952 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:01:03,954 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:01:03,955 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:01:03,956 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:01:03,957 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-3.i [2024-12-02 11:01:06,563 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/data/7a688cf6a/533977c05a854fcf867a3f6e5675bad3/FLAG74d9b5fbb [2024-12-02 11:01:06,754 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:01:06,755 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-3.i [2024-12-02 11:01:06,763 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/data/7a688cf6a/533977c05a854fcf867a3f6e5675bad3/FLAG74d9b5fbb [2024-12-02 11:01:07,119 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/data/7a688cf6a/533977c05a854fcf867a3f6e5675bad3 [2024-12-02 11:01:07,121 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:01:07,122 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:01:07,122 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:01:07,123 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:01:07,125 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:01:07,126 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:01:07" (1/1) ... [2024-12-02 11:01:07,126 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25a5858a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:07, skipping insertion in model container [2024-12-02 11:01:07,127 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:01:07" (1/1) ... [2024-12-02 11:01:07,138 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:01:07,252 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_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-3.i[912,925] [2024-12-02 11:01:07,298 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:01:07,309 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:01:07,316 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_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-3.i[912,925] [2024-12-02 11:01:07,333 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:01:07,350 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:01:07,350 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:07 WrapperNode [2024-12-02 11:01:07,350 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:01:07,351 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:01:07,351 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:01:07,351 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:01:07,358 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:07" (1/1) ... [2024-12-02 11:01:07,367 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:07" (1/1) ... [2024-12-02 11:01:07,387 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 118 [2024-12-02 11:01:07,388 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:01:07,388 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:01:07,388 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:01:07,388 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:01:07,395 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:07" (1/1) ... [2024-12-02 11:01:07,395 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:07" (1/1) ... [2024-12-02 11:01:07,399 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:07" (1/1) ... [2024-12-02 11:01:07,409 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 11:01:07,410 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:07" (1/1) ... [2024-12-02 11:01:07,410 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:07" (1/1) ... [2024-12-02 11:01:07,418 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:07" (1/1) ... [2024-12-02 11:01:07,419 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:07" (1/1) ... [2024-12-02 11:01:07,423 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:07" (1/1) ... [2024-12-02 11:01:07,425 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:07" (1/1) ... [2024-12-02 11:01:07,426 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:07" (1/1) ... [2024-12-02 11:01:07,429 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:01:07,430 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:01:07,430 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:01:07,430 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:01:07,431 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:07" (1/1) ... [2024-12-02 11:01:07,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:01:07,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:01:07,457 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:01:07,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:01:07,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:01:07,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 11:01:07,478 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 11:01:07,478 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 11:01:07,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:01:07,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:01:07,534 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:01:07,536 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:01:21,734 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-12-02 11:01:21,734 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:01:21,741 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:01:21,742 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 11:01:21,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:01:21 BoogieIcfgContainer [2024-12-02 11:01:21,742 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:01:21,743 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:01:21,743 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:01:21,747 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:01:21,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:01:07" (1/3) ... [2024-12-02 11:01:21,748 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f4c3ac5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:01:21, skipping insertion in model container [2024-12-02 11:01:21,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:01:07" (2/3) ... [2024-12-02 11:01:21,748 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f4c3ac5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:01:21, skipping insertion in model container [2024-12-02 11:01:21,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:01:21" (3/3) ... [2024-12-02 11:01:21,749 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_normal_file-3.i [2024-12-02 11:01:21,759 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:01:21,760 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_normal_file-3.i that has 2 procedures, 60 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 11:01:21,793 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:01:21,800 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;@5ac11899, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:01:21,801 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 11:01:21,803 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 42 states have (on average 1.4761904761904763) internal successors, (62), 43 states have internal predecessors, (62), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 11:01:21,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-12-02 11:01:21,809 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:01:21,810 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:01:21,810 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:01:21,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:01:21,814 INFO L85 PathProgramCache]: Analyzing trace with hash 990176220, now seen corresponding path program 1 times [2024-12-02 11:01:21,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:01:21,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1966543722] [2024-12-02 11:01:21,821 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:01:21,822 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 11:01:21,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:01:21,824 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 11:01:21,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-12-02 11:01:22,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:01:22,831 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 11:01:22,835 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:01:22,857 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2024-12-02 11:01:22,857 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:01:22,858 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:01:22,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1966543722] [2024-12-02 11:01:22,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1966543722] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:01:22,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:01:22,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 11:01:22,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440690328] [2024-12-02 11:01:22,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:01:22,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 11:01:22,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:01:22,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 11:01:22,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:01:22,877 INFO L87 Difference]: Start difference. First operand has 60 states, 42 states have (on average 1.4761904761904763) internal successors, (62), 43 states have internal predecessors, (62), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 11:01:22,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:01:22,893 INFO L93 Difference]: Finished difference Result 113 states and 193 transitions. [2024-12-02 11:01:22,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 11:01:22,894 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 102 [2024-12-02 11:01:22,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:01:22,898 INFO L225 Difference]: With dead ends: 113 [2024-12-02 11:01:22,899 INFO L226 Difference]: Without dead ends: 56 [2024-12-02 11:01:22,901 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:01:22,903 INFO L435 NwaCegarLoop]: 84 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, 84 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:01:22,903 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:01:22,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-12-02 11:01:22,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2024-12-02 11:01:22,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 39 states have internal predecessors, (54), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 11:01:22,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 84 transitions. [2024-12-02 11:01:22,929 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 84 transitions. Word has length 102 [2024-12-02 11:01:22,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:01:22,929 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 84 transitions. [2024-12-02 11:01:22,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 11:01:22,929 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 84 transitions. [2024-12-02 11:01:22,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-12-02 11:01:22,931 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:01:22,931 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:01:22,946 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-12-02 11:01:23,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 11:01:23,132 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:01:23,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:01:23,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1728304218, now seen corresponding path program 1 times [2024-12-02 11:01:23,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:01:23,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [375972166] [2024-12-02 11:01:23,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:01:23,134 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 11:01:23,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:01:23,136 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 11:01:23,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-12-02 11:01:24,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:01:24,172 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 11:01:24,177 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:01:25,954 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 11:01:25,955 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:01:25,955 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:01:25,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [375972166] [2024-12-02 11:01:25,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [375972166] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:01:25,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:01:25,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:01:25,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167017644] [2024-12-02 11:01:25,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:01:25,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:01:25,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:01:25,958 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:01:25,958 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:01:25,958 INFO L87 Difference]: Start difference. First operand 56 states and 84 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 11:01:30,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:01:34,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:01:37,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.52s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:01:42,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:01:46,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:01:50,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:01:54,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:01:58,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:02:02,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:02:06,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:02:06,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:02:06,525 INFO L93 Difference]: Finished difference Result 162 states and 246 transitions. [2024-12-02 11:02:06,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:02:06,613 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 102 [2024-12-02 11:02:06,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:02:06,614 INFO L225 Difference]: With dead ends: 162 [2024-12-02 11:02:06,615 INFO L226 Difference]: Without dead ends: 109 [2024-12-02 11:02:06,615 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:02:06,616 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 30 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:02:06,616 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 247 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 8 Unknown, 0 Unchecked, 40.5s Time] [2024-12-02 11:02:06,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-12-02 11:02:06,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 107. [2024-12-02 11:02:06,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 74 states have (on average 1.364864864864865) internal successors, (101), 74 states have internal predecessors, (101), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 11:02:06,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 161 transitions. [2024-12-02 11:02:06,637 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 161 transitions. Word has length 102 [2024-12-02 11:02:06,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:02:06,637 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 161 transitions. [2024-12-02 11:02:06,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 11:02:06,638 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 161 transitions. [2024-12-02 11:02:06,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-12-02 11:02:06,639 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:02:06,639 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:02:06,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-12-02 11:02:06,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 11:02:06,840 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:02:06,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:02:06,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1759076794, now seen corresponding path program 1 times [2024-12-02 11:02:06,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:02:06,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [546712033] [2024-12-02 11:02:06,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:02:06,841 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 11:02:06,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:02:06,843 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 11:02:06,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-12-02 11:02:07,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:02:07,801 INFO L256 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 11:02:07,804 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:02:07,905 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 11:02:07,906 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:02:07,906 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:02:07,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [546712033] [2024-12-02 11:02:07,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [546712033] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:02:07,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:02:07,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:02:07,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037032811] [2024-12-02 11:02:07,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:02:07,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:02:07,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:02:07,908 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:02:07,908 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:02:07,908 INFO L87 Difference]: Start difference. First operand 107 states and 161 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 11:02:12,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:02:16,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:02:16,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:02:16,383 INFO L93 Difference]: Finished difference Result 253 states and 380 transitions. [2024-12-02 11:02:16,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:02:16,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 103 [2024-12-02 11:02:16,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:02:16,386 INFO L225 Difference]: With dead ends: 253 [2024-12-02 11:02:16,386 INFO L226 Difference]: Without dead ends: 149 [2024-12-02 11:02:16,387 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:02:16,388 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 28 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:02:16,388 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 148 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 14 Invalid, 2 Unknown, 0 Unchecked, 8.5s Time] [2024-12-02 11:02:16,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-12-02 11:02:16,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 125. [2024-12-02 11:02:16,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 92 states have (on average 1.358695652173913) internal successors, (125), 92 states have internal predecessors, (125), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 11:02:16,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 185 transitions. [2024-12-02 11:02:16,407 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 185 transitions. Word has length 103 [2024-12-02 11:02:16,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:02:16,408 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 185 transitions. [2024-12-02 11:02:16,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 11:02:16,408 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 185 transitions. [2024-12-02 11:02:16,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-12-02 11:02:16,409 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:02:16,410 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:02:16,425 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-12-02 11:02:16,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 11:02:16,610 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:02:16,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:02:16,611 INFO L85 PathProgramCache]: Analyzing trace with hash 166944915, now seen corresponding path program 1 times [2024-12-02 11:02:16,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:02:16,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1505801132] [2024-12-02 11:02:16,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:02:16,611 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 11:02:16,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:02:16,613 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 11:02:16,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-12-02 11:02:17,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:02:17,570 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 11:02:17,573 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:02:19,234 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 11:02:19,235 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:02:19,235 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:02:19,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1505801132] [2024-12-02 11:02:19,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1505801132] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:02:19,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:02:19,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:02:19,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023382359] [2024-12-02 11:02:19,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:02:19,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:02:19,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:02:19,236 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:02:19,236 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:02:19,237 INFO L87 Difference]: Start difference. First operand 125 states and 185 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 11:02:21,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:02:26,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:02:28,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.64s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:02:32,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.70s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:02:37,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:02:39,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.86s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:02:41,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:02:46,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:02:50,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:02:54,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:02:58,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:03:02,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:03:02,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:03:02,572 INFO L93 Difference]: Finished difference Result 185 states and 274 transitions. [2024-12-02 11:03:02,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:03:02,573 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 104 [2024-12-02 11:03:02,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:03:02,574 INFO L225 Difference]: With dead ends: 185 [2024-12-02 11:03:02,574 INFO L226 Difference]: Without dead ends: 123 [2024-12-02 11:03:02,575 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:03:02,575 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 72 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 31 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:03:02,575 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 314 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 63 Invalid, 7 Unknown, 0 Unchecked, 43.2s Time] [2024-12-02 11:03:02,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-12-02 11:03:02,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 117. [2024-12-02 11:03:02,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 84 states have (on average 1.3095238095238095) internal successors, (110), 84 states have internal predecessors, (110), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-12-02 11:03:02,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 170 transitions. [2024-12-02 11:03:02,591 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 170 transitions. Word has length 104 [2024-12-02 11:03:02,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:03:02,591 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 170 transitions. [2024-12-02 11:03:02,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 11:03:02,592 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 170 transitions. [2024-12-02 11:03:02,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-12-02 11:03:02,594 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:03:02,594 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:03:02,613 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-12-02 11:03:02,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 11:03:02,794 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:03:02,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:03:02,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1351477019, now seen corresponding path program 1 times [2024-12-02 11:03:02,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:03:02,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [582557282] [2024-12-02 11:03:02,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:03:02,795 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 11:03:02,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:03:02,797 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 11:03:02,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-12-02 11:03:03,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:03:03,749 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 11:03:03,753 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:03:07,672 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 11:03:07,672 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:03:07,673 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:03:07,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [582557282] [2024-12-02 11:03:07,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [582557282] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:03:07,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:03:07,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:03:07,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266901133] [2024-12-02 11:03:07,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:03:07,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:03:07,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:03:07,674 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:03:07,674 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:03:07,675 INFO L87 Difference]: Start difference. First operand 117 states and 170 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 11:03:13,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:03:17,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:03:21,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:03:25,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:03:29,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:03:33,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:03:37,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:03:41,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:03:45,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:03:49,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:03:53,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:03:57,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:04:01,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:04:05,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:04:09,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:04:13,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:04:19,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:04:23,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:04:27,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:04:31,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:04:31,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:04:31,321 INFO L93 Difference]: Finished difference Result 665 states and 964 transitions. [2024-12-02 11:04:31,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 11:04:31,322 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 105 [2024-12-02 11:04:31,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:04:31,325 INFO L225 Difference]: With dead ends: 665 [2024-12-02 11:04:31,325 INFO L226 Difference]: Without dead ends: 551 [2024-12-02 11:04:31,325 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-12-02 11:04:31,326 INFO L435 NwaCegarLoop]: 220 mSDtfsCounter, 186 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 31 mSolverCounterUnsat, 20 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 82.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 20 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 83.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:04:31,326 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 645 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 233 Invalid, 20 Unknown, 0 Unchecked, 83.0s Time] [2024-12-02 11:04:31,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-12-02 11:04:31,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 447. [2024-12-02 11:04:31,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 318 states have (on average 1.3144654088050314) internal successors, (418), 318 states have internal predecessors, (418), 120 states have call successors, (120), 8 states have call predecessors, (120), 8 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2024-12-02 11:04:31,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 658 transitions. [2024-12-02 11:04:31,389 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 658 transitions. Word has length 105 [2024-12-02 11:04:31,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:04:31,390 INFO L471 AbstractCegarLoop]: Abstraction has 447 states and 658 transitions. [2024-12-02 11:04:31,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 11:04:31,390 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 658 transitions. [2024-12-02 11:04:31,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-12-02 11:04:31,392 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:04:31,392 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:04:31,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2024-12-02 11:04:31,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 11:04:31,593 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:04:31,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:04:31,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1922421923, now seen corresponding path program 1 times [2024-12-02 11:04:31,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:04:31,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [445066042] [2024-12-02 11:04:31,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:04:31,594 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 11:04:31,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:04:31,595 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 11:04:31,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-12-02 11:04:32,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:04:32,537 INFO L256 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 11:04:32,539 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:04:35,638 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 11:04:35,638 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:04:35,638 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:04:35,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [445066042] [2024-12-02 11:04:35,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [445066042] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:04:35,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:04:35,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:04:35,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927428299] [2024-12-02 11:04:35,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:04:35,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:04:35,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:04:35,640 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:04:35,640 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:04:35,640 INFO L87 Difference]: Start difference. First operand 447 states and 658 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 11:04:40,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:04:44,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:04:48,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:04:52,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:04:56,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:04:56,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:04:56,619 INFO L93 Difference]: Finished difference Result 1268 states and 1854 transitions. [2024-12-02 11:04:56,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:04:56,707 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 105 [2024-12-02 11:04:56,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:04:56,711 INFO L225 Difference]: With dead ends: 1268 [2024-12-02 11:04:56,711 INFO L226 Difference]: Without dead ends: 824 [2024-12-02 11:04:56,712 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:04:56,712 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 80 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 31 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.8s IncrementalHoareTripleChecker+Time [2024-12-02 11:04:56,713 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 238 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 25 Invalid, 5 Unknown, 0 Unchecked, 20.8s Time] [2024-12-02 11:04:56,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2024-12-02 11:04:56,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 718. [2024-12-02 11:04:56,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 718 states, 509 states have (on average 1.3025540275049117) internal successors, (663), 509 states have internal predecessors, (663), 195 states have call successors, (195), 13 states have call predecessors, (195), 13 states have return successors, (195), 195 states have call predecessors, (195), 195 states have call successors, (195) [2024-12-02 11:04:56,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 1053 transitions. [2024-12-02 11:04:56,801 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 1053 transitions. Word has length 105 [2024-12-02 11:04:56,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:04:56,802 INFO L471 AbstractCegarLoop]: Abstraction has 718 states and 1053 transitions. [2024-12-02 11:04:56,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 11:04:56,802 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 1053 transitions. [2024-12-02 11:04:56,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 11:04:56,803 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:04:56,803 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:04:56,826 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-12-02 11:04:57,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 11:04:57,004 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:04:57,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:04:57,004 INFO L85 PathProgramCache]: Analyzing trace with hash -2065537145, now seen corresponding path program 1 times [2024-12-02 11:04:57,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:04:57,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [701346045] [2024-12-02 11:04:57,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:04:57,005 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 11:04:57,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:04:57,006 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 11:04:57,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-12-02 11:04:57,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:04:57,926 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 11:04:57,928 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:05:01,417 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 11:05:01,418 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:05:01,418 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:05:01,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [701346045] [2024-12-02 11:05:01,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [701346045] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:05:01,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:05:01,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:05:01,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134989028] [2024-12-02 11:05:01,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:05:01,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:05:01,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:05:01,419 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:05:01,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:05:01,419 INFO L87 Difference]: Start difference. First operand 718 states and 1053 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 11:05:05,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:05:09,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:05:13,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:05:17,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 11:05:17,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:05:17,972 INFO L93 Difference]: Finished difference Result 1549 states and 2272 transitions. [2024-12-02 11:05:18,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:05:18,061 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 106 [2024-12-02 11:05:18,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:05:18,066 INFO L225 Difference]: With dead ends: 1549 [2024-12-02 11:05:18,066 INFO L226 Difference]: Without dead ends: 834 [2024-12-02 11:05:18,068 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:05:18,069 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 20 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:05:18,069 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 251 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 4 Unknown, 0 Unchecked, 16.4s Time] [2024-12-02 11:05:18,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2024-12-02 11:05:18,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 559. [2024-12-02 11:05:18,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 398 states have (on average 1.3015075376884422) internal successors, (518), 398 states have internal predecessors, (518), 150 states have call successors, (150), 10 states have call predecessors, (150), 10 states have return successors, (150), 150 states have call predecessors, (150), 150 states have call successors, (150) [2024-12-02 11:05:18,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 818 transitions. [2024-12-02 11:05:18,133 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 818 transitions. Word has length 106 [2024-12-02 11:05:18,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:05:18,133 INFO L471 AbstractCegarLoop]: Abstraction has 559 states and 818 transitions. [2024-12-02 11:05:18,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 11:05:18,133 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 818 transitions. [2024-12-02 11:05:18,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 11:05:18,134 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:05:18,135 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:05:18,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-12-02 11:05:18,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 11:05:18,335 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:05:18,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:05:18,336 INFO L85 PathProgramCache]: Analyzing trace with hash 820172171, now seen corresponding path program 1 times [2024-12-02 11:05:18,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:05:18,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2017064640] [2024-12-02 11:05:18,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:05:18,336 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 11:05:18,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:05:18,338 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 11:05:18,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-12-02 11:05:19,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:05:19,264 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 11:05:19,265 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:05:19,434 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-12-02 11:05:19,434 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:05:19,434 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:05:19,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2017064640] [2024-12-02 11:05:19,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2017064640] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:05:19,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:05:19,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:05:19,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550993340] [2024-12-02 11:05:19,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:05:19,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:05:19,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:05:19,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:05:19,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:05:19,435 INFO L87 Difference]: Start difference. First operand 559 states and 818 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 11:05:24,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 11:05:28,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 11:05:28,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:05:28,797 INFO L93 Difference]: Finished difference Result 1576 states and 2308 transitions. [2024-12-02 11:05:28,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:05:28,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 106 [2024-12-02 11:05:28,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:05:28,930 INFO L225 Difference]: With dead ends: 1576 [2024-12-02 11:05:28,930 INFO L226 Difference]: Without dead ends: 1020 [2024-12-02 11:05:28,932 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:05:28,933 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 71 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:05:28,933 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 209 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 2 Unknown, 0 Unchecked, 9.3s Time] [2024-12-02 11:05:28,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2024-12-02 11:05:29,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 1010. [2024-12-02 11:05:29,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1010 states, 721 states have (on average 1.2954230235783635) internal successors, (934), 721 states have internal predecessors, (934), 270 states have call successors, (270), 18 states have call predecessors, (270), 18 states have return successors, (270), 270 states have call predecessors, (270), 270 states have call successors, (270) [2024-12-02 11:05:29,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1010 states to 1010 states and 1474 transitions. [2024-12-02 11:05:29,031 INFO L78 Accepts]: Start accepts. Automaton has 1010 states and 1474 transitions. Word has length 106 [2024-12-02 11:05:29,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:05:29,031 INFO L471 AbstractCegarLoop]: Abstraction has 1010 states and 1474 transitions. [2024-12-02 11:05:29,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-12-02 11:05:29,031 INFO L276 IsEmpty]: Start isEmpty. Operand 1010 states and 1474 transitions. [2024-12-02 11:05:29,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 11:05:29,032 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:05:29,033 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:05:29,056 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-12-02 11:05:29,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 11:05:29,233 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:05:29,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:05:29,234 INFO L85 PathProgramCache]: Analyzing trace with hash 818325129, now seen corresponding path program 1 times [2024-12-02 11:05:29,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:05:29,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2106775206] [2024-12-02 11:05:29,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:05:29,234 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 11:05:29,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:05:29,236 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 11:05:29,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a82d8a3-1da7-4417-b3c8-9e6f5a0d0009/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-12-02 11:05:30,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:05:30,266 INFO L256 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 11:05:30,269 INFO L279 TraceCheckSpWp]: Computing forward predicates...