./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_4+newton_2_3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/gcd_4+newton_2_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a8b52922fdfe93dd417523e4e63c80c50c6631dbe5ff22aa1a5e25c09a617278 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:23:41,623 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:23:41,752 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 05:23:41,764 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:23:41,764 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:23:41,813 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:23:41,815 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:23:41,815 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:23:41,816 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:23:41,816 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:23:41,816 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:23:41,817 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:23:41,818 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:23:41,818 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:23:41,818 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:23:41,818 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:23:41,818 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:23:41,819 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:23:41,819 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:23:41,820 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:23:41,820 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:23:41,820 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:23:41,821 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:23:41,821 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:23:41,821 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:23:41,821 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:23:41,821 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:23:41,822 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:23:41,822 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:23:41,822 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:23:41,822 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:23:41,822 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:23:41,823 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:23:41,823 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:23:41,823 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:23:41,823 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:23:41,824 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:23:41,824 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:23:41,825 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:23:41,825 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:23:41,825 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:23:41,825 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:23:41,825 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:23:41,825 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:23:41,826 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:23:41,826 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:23:41,826 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:23:41,826 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E 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 -> Taipan 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 -> a8b52922fdfe93dd417523e4e63c80c50c6631dbe5ff22aa1a5e25c09a617278 [2024-11-14 05:23:42,220 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:23:42,230 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:23:42,233 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:23:42,235 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:23:42,235 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:23:42,237 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/combinations/gcd_4+newton_2_3.i Unable to find full path for "g++" [2024-11-14 05:23:44,614 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:23:44,962 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:23:44,963 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/sv-benchmarks/c/combinations/gcd_4+newton_2_3.i [2024-11-14 05:23:44,979 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/data/492ff5734/96bb8e1916714fe795c3f6dd01bff1e3/FLAGfbe506ec3 [2024-11-14 05:23:45,009 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/data/492ff5734/96bb8e1916714fe795c3f6dd01bff1e3 [2024-11-14 05:23:45,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:23:45,017 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:23:45,020 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:23:45,020 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:23:45,027 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:23:45,028 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:23:45" (1/1) ... [2024-11-14 05:23:45,028 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38b02cca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:23:45, skipping insertion in model container [2024-11-14 05:23:45,029 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:23:45" (1/1) ... [2024-11-14 05:23:45,056 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:23:45,297 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_06f4371e-5923-4219-8740-c90b3c12862f/sv-benchmarks/c/combinations/gcd_4+newton_2_3.i[1224,1237] [2024-11-14 05:23:45,350 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_06f4371e-5923-4219-8740-c90b3c12862f/sv-benchmarks/c/combinations/gcd_4+newton_2_3.i[2827,2840] [2024-11-14 05:23:45,356 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:23:45,375 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:23:45,392 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_06f4371e-5923-4219-8740-c90b3c12862f/sv-benchmarks/c/combinations/gcd_4+newton_2_3.i[1224,1237] [2024-11-14 05:23:45,419 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_06f4371e-5923-4219-8740-c90b3c12862f/sv-benchmarks/c/combinations/gcd_4+newton_2_3.i[2827,2840] [2024-11-14 05:23:45,425 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:23:45,449 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:23:45,452 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:23:45 WrapperNode [2024-11-14 05:23:45,452 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:23:45,454 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:23:45,454 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:23:45,454 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:23:45,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:23:45" (1/1) ... [2024-11-14 05:23:45,477 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:23:45" (1/1) ... [2024-11-14 05:23:45,508 INFO L138 Inliner]: procedures = 27, calls = 26, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 78 [2024-11-14 05:23:45,508 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:23:45,509 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:23:45,509 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:23:45,509 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:23:45,516 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:23:45" (1/1) ... [2024-11-14 05:23:45,516 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:23:45" (1/1) ... [2024-11-14 05:23:45,519 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:23:45" (1/1) ... [2024-11-14 05:23:45,519 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:23:45" (1/1) ... [2024-11-14 05:23:45,532 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:23:45" (1/1) ... [2024-11-14 05:23:45,540 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:23:45" (1/1) ... [2024-11-14 05:23:45,541 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:23:45" (1/1) ... [2024-11-14 05:23:45,543 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:23:45" (1/1) ... [2024-11-14 05:23:45,545 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:23:45,546 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:23:45,546 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:23:45,546 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:23:45,547 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:23:45" (1/1) ... [2024-11-14 05:23:45,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:23:45,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:23:45,587 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:23:45,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:23:45,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:23:45,618 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-11-14 05:23:45,618 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-11-14 05:23:45,618 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-14 05:23:45,618 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-14 05:23:45,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:23:45,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:23:45,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:23:45,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 05:23:45,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 05:23:45,691 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:23:45,693 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:23:45,921 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-14 05:23:45,921 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:23:46,009 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:23:46,009 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:23:46,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:23:46 BoogieIcfgContainer [2024-11-14 05:23:46,010 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:23:46,013 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:23:46,014 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:23:46,020 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:23:46,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:23:45" (1/3) ... [2024-11-14 05:23:46,021 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b497223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:23:46, skipping insertion in model container [2024-11-14 05:23:46,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:23:45" (2/3) ... [2024-11-14 05:23:46,021 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b497223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:23:46, skipping insertion in model container [2024-11-14 05:23:46,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:23:46" (3/3) ... [2024-11-14 05:23:46,023 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_4+newton_2_3.i [2024-11-14 05:23:46,043 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:23:46,045 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG gcd_4+newton_2_3.i that has 4 procedures, 31 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2024-11-14 05:23:46,115 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:23:46,129 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=FINITE_AUTOMATA, 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;@275ac75, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:23:46,130 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-14 05:23:46,135 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 20 states have internal predecessors, (25), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 05:23:46,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-14 05:23:46,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:23:46,144 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:23:46,144 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:23:46,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:23:46,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1499858615, now seen corresponding path program 1 times [2024-11-14 05:23:46,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:23:46,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399271015] [2024-11-14 05:23:46,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:23:46,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:23:46,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:23:46,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:23:46,522 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:23:46,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399271015] [2024-11-14 05:23:46,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399271015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:23:46,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:23:46,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:23:46,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688631829] [2024-11-14 05:23:46,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:23:46,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:23:46,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:23:46,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:23:46,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:23:46,556 INFO L87 Difference]: Start difference. First operand has 31 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 20 states have internal predecessors, (25), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:23:46,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:23:46,657 INFO L93 Difference]: Finished difference Result 46 states and 60 transitions. [2024-11-14 05:23:46,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:23:46,660 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-14 05:23:46,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:23:46,667 INFO L225 Difference]: With dead ends: 46 [2024-11-14 05:23:46,668 INFO L226 Difference]: Without dead ends: 28 [2024-11-14 05:23:46,672 INFO L431 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 [2024-11-14 05:23:46,675 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 1 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:23:46,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 49 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:23:46,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-14 05:23:46,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2024-11-14 05:23:46,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 15 states have (on average 1.2) internal successors, (18), 17 states have internal predecessors, (18), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 05:23:46,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2024-11-14 05:23:46,730 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 8 [2024-11-14 05:23:46,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:23:46,730 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2024-11-14 05:23:46,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:23:46,731 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2024-11-14 05:23:46,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-14 05:23:46,733 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:23:46,733 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:23:46,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:23:46,734 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:23:46,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:23:46,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1052207882, now seen corresponding path program 1 times [2024-11-14 05:23:46,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:23:46,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139487272] [2024-11-14 05:23:46,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:23:46,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:23:46,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:23:46,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:23:46,948 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:23:46,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139487272] [2024-11-14 05:23:46,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139487272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:23:46,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:23:46,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:23:46,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111705915] [2024-11-14 05:23:46,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:23:46,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:23:46,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:23:46,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:23:46,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:23:46,954 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:23:47,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:23:47,002 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2024-11-14 05:23:47,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:23:47,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-14 05:23:47,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:23:47,004 INFO L225 Difference]: With dead ends: 38 [2024-11-14 05:23:47,004 INFO L226 Difference]: Without dead ends: 28 [2024-11-14 05:23:47,005 INFO L431 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 [2024-11-14 05:23:47,006 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:23:47,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:23:47,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-14 05:23:47,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-11-14 05:23:47,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 16 states have (on average 1.1875) internal successors, (19), 18 states have internal predecessors, (19), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 05:23:47,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2024-11-14 05:23:47,023 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 9 [2024-11-14 05:23:47,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:23:47,023 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2024-11-14 05:23:47,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:23:47,024 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2024-11-14 05:23:47,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-14 05:23:47,025 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:23:47,025 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:23:47,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 05:23:47,025 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:23:47,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:23:47,028 INFO L85 PathProgramCache]: Analyzing trace with hash 265503436, now seen corresponding path program 1 times [2024-11-14 05:23:47,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:23:47,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538049787] [2024-11-14 05:23:47,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:23:47,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:23:47,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:23:47,299 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:23:47,299 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:23:47,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538049787] [2024-11-14 05:23:47,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538049787] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:23:47,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780807545] [2024-11-14 05:23:47,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:23:47,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:23:47,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:23:47,302 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:23:47,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 05:23:47,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:23:47,397 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 05:23:47,402 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:23:47,491 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:23:47,492 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:23:47,582 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:23:47,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780807545] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:23:47,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2111575175] [2024-11-14 05:23:47,608 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2024-11-14 05:23:47,608 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:23:47,612 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:23:47,617 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:23:47,617 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:23:48,343 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 48 for LOIs [2024-11-14 05:23:48,451 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:23:49,230 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '312#(and (<= 1 |#StackHeapBarrier|) (= |__VERIFIER_assert_#in~cond| 0) (exists ((|v_ULTIMATE.start_main1_~g~0#1_BEFORE_CALL_1| Int)) (and (not (= (mod 63 |v_ULTIMATE.start_main1_~g~0#1_BEFORE_CALL_1|) 0)) (<= 0 (+ |v_ULTIMATE.start_main1_~g~0#1_BEFORE_CALL_1| 2147483648)) (<= |v_ULTIMATE.start_main1_~g~0#1_BEFORE_CALL_1| 2147483647))))' at error location [2024-11-14 05:23:49,232 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:23:49,232 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:23:49,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-14 05:23:49,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048709265] [2024-11-14 05:23:49,233 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:23:49,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 05:23:49,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:23:49,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 05:23:49,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2024-11-14 05:23:49,237 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:23:49,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:23:49,362 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2024-11-14 05:23:49,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:23:49,363 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-14 05:23:49,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:23:49,364 INFO L225 Difference]: With dead ends: 40 [2024-11-14 05:23:49,364 INFO L226 Difference]: Without dead ends: 30 [2024-11-14 05:23:49,364 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2024-11-14 05:23:49,365 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:23:49,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:23:49,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-14 05:23:49,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-11-14 05:23:49,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 20 states have internal predecessors, (21), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 05:23:49,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2024-11-14 05:23:49,379 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 10 [2024-11-14 05:23:49,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:23:49,379 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2024-11-14 05:23:49,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:23:49,380 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2024-11-14 05:23:49,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-14 05:23:49,381 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:23:49,382 INFO L215 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:23:49,404 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 05:23:49,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:23:49,587 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:23:49,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:23:49,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1765072908, now seen corresponding path program 2 times [2024-11-14 05:23:49,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:23:49,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055207035] [2024-11-14 05:23:49,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:23:49,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:23:49,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:23:50,002 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:23:50,002 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:23:50,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055207035] [2024-11-14 05:23:50,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055207035] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:23:50,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536610703] [2024-11-14 05:23:50,003 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 05:23:50,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:23:50,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:23:50,005 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:23:50,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 05:23:50,091 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-14 05:23:50,091 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:23:50,093 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-14 05:23:50,094 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:23:50,187 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:23:50,187 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:23:50,594 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:23:50,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536610703] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:23:50,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1265142454] [2024-11-14 05:23:50,599 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2024-11-14 05:23:50,599 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:23:50,600 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:23:50,600 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:23:50,601 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:23:50,919 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 29 for LOIs [2024-11-14 05:23:50,973 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:23:51,621 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '512#(and (exists ((|v_ULTIMATE.start_main1_~g~0#1_BEFORE_CALL_2| Int)) (and (<= |v_ULTIMATE.start_main1_~g~0#1_BEFORE_CALL_2| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main1_~g~0#1_BEFORE_CALL_2| 2147483648)) (not (= (mod 63 |v_ULTIMATE.start_main1_~g~0#1_BEFORE_CALL_2|) 0)))) (<= 1 |#StackHeapBarrier|) (= |__VERIFIER_assert_#in~cond| 0))' at error location [2024-11-14 05:23:51,621 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:23:51,621 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:23:51,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2024-11-14 05:23:51,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616303251] [2024-11-14 05:23:51,622 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:23:51,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-14 05:23:51,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:23:51,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-14 05:23:51,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=324, Unknown=0, NotChecked=0, Total=420 [2024-11-14 05:23:51,626 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 14 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:23:51,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:23:51,745 INFO L93 Difference]: Finished difference Result 41 states and 47 transitions. [2024-11-14 05:23:51,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:23:51,745 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-14 05:23:51,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:23:51,746 INFO L225 Difference]: With dead ends: 41 [2024-11-14 05:23:51,747 INFO L226 Difference]: Without dead ends: 31 [2024-11-14 05:23:51,747 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=111, Invalid=351, Unknown=0, NotChecked=0, Total=462 [2024-11-14 05:23:51,749 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:23:51,751 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 133 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:23:51,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-14 05:23:51,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-11-14 05:23:51,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 21 states have internal predecessors, (22), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 05:23:51,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2024-11-14 05:23:51,763 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 12 [2024-11-14 05:23:51,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:23:51,763 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2024-11-14 05:23:51,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:23:51,763 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2024-11-14 05:23:51,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-14 05:23:51,764 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:23:51,764 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:23:51,789 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 05:23:51,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:23:51,970 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:23:51,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:23:51,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1701862006, now seen corresponding path program 3 times [2024-11-14 05:23:51,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:23:51,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120965107] [2024-11-14 05:23:51,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:23:51,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:23:51,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:23:52,315 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:23:52,316 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:23:52,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120965107] [2024-11-14 05:23:52,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120965107] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:23:52,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1483221297] [2024-11-14 05:23:52,316 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 05:23:52,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:23:52,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:23:52,319 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:23:52,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 05:23:52,388 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 05:23:52,388 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 05:23:52,390 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-14 05:23:52,391 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:23:52,498 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:23:52,498 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:23:53,004 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:23:53,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1483221297] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:23:53,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1418556344] [2024-11-14 05:23:53,007 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2024-11-14 05:23:53,007 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:23:53,008 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:23:53,008 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:23:53,008 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:23:53,244 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 29 for LOIs [2024-11-14 05:23:53,274 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:23:53,919 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '723#(and (<= 1 |#StackHeapBarrier|) (= |__VERIFIER_assert_#in~cond| 0) (exists ((|v_ULTIMATE.start_main1_~g~0#1_BEFORE_CALL_3| Int)) (and (<= |v_ULTIMATE.start_main1_~g~0#1_BEFORE_CALL_3| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main1_~g~0#1_BEFORE_CALL_3| 2147483648)) (not (= (mod 63 |v_ULTIMATE.start_main1_~g~0#1_BEFORE_CALL_3|) 0)))))' at error location [2024-11-14 05:23:53,919 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:23:53,919 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:23:53,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2024-11-14 05:23:53,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821991336] [2024-11-14 05:23:53,920 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 05:23:53,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-14 05:23:53,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:23:53,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-14 05:23:53,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=452, Unknown=0, NotChecked=0, Total=552 [2024-11-14 05:23:53,925 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand has 17 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 17 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:23:54,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:23:54,301 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2024-11-14 05:23:54,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 05:23:54,302 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 17 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-14 05:23:54,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:23:54,305 INFO L225 Difference]: With dead ends: 46 [2024-11-14 05:23:54,306 INFO L226 Difference]: Without dead ends: 36 [2024-11-14 05:23:54,307 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=157, Invalid=655, Unknown=0, NotChecked=0, Total=812 [2024-11-14 05:23:54,309 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:23:54,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 221 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:23:54,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-14 05:23:54,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-11-14 05:23:54,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 26 states have internal predecessors, (28), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 05:23:54,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2024-11-14 05:23:54,325 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 13 [2024-11-14 05:23:54,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:23:54,325 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2024-11-14 05:23:54,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 17 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:23:54,326 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2024-11-14 05:23:54,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-14 05:23:54,327 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:23:54,328 INFO L215 NwaCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:23:54,352 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-14 05:23:54,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:23:54,532 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:23:54,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:23:54,533 INFO L85 PathProgramCache]: Analyzing trace with hash -257675956, now seen corresponding path program 4 times [2024-11-14 05:23:54,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:23:54,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011873509] [2024-11-14 05:23:54,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:23:54,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:23:54,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:23:54,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1378892816] [2024-11-14 05:23:54,579 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 05:23:54,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:23:54,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:23:54,582 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:23:54,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 05:23:54,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:23:54,645 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-14 05:23:54,647 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:23:54,881 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:23:54,881 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:24:11,836 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:24:11,837 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:24:11,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011873509] [2024-11-14 05:24:11,837 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-14 05:24:11,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378892816] [2024-11-14 05:24:11,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378892816] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:24:11,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [187357155] [2024-11-14 05:24:11,840 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2024-11-14 05:24:11,841 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:24:11,841 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:24:11,841 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:24:11,842 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:24:12,000 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 29 for LOIs [2024-11-14 05:24:12,021 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:24:12,769 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '973#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main1_~g~0#1_BEFORE_CALL_5| Int)) (and (<= 0 (+ |v_ULTIMATE.start_main1_~g~0#1_BEFORE_CALL_5| 2147483648)) (<= |v_ULTIMATE.start_main1_~g~0#1_BEFORE_CALL_5| 2147483647) (not (= (mod 63 |v_ULTIMATE.start_main1_~g~0#1_BEFORE_CALL_5|) 0)))) (= |__VERIFIER_assert_#in~cond| 0))' at error location [2024-11-14 05:24:12,769 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 05:24:12,769 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-14 05:24:12,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2024-11-14 05:24:12,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962212741] [2024-11-14 05:24:12,770 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-14 05:24:12,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-14 05:24:12,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:24:12,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-14 05:24:12,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=705, Unknown=1, NotChecked=0, Total=812 [2024-11-14 05:24:12,773 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand has 22 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:24:13,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:13,239 INFO L93 Difference]: Finished difference Result 50 states and 56 transitions. [2024-11-14 05:24:13,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 05:24:13,242 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-14 05:24:13,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:13,243 INFO L225 Difference]: With dead ends: 50 [2024-11-14 05:24:13,243 INFO L226 Difference]: Without dead ends: 33 [2024-11-14 05:24:13,243 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=112, Invalid=757, Unknown=1, NotChecked=0, Total=870 [2024-11-14 05:24:13,244 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 3 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:13,244 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 305 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 05:24:13,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-11-14 05:24:13,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2024-11-14 05:24:13,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 23 states have internal predecessors, (23), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 05:24:13,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2024-11-14 05:24:13,251 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 14 [2024-11-14 05:24:13,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:13,251 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2024-11-14 05:24:13,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:24:13,251 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2024-11-14 05:24:13,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-14 05:24:13,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:13,252 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:13,265 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-14 05:24:13,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-14 05:24:13,453 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:24:13,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:13,453 INFO L85 PathProgramCache]: Analyzing trace with hash -488905903, now seen corresponding path program 1 times [2024-11-14 05:24:13,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:24:13,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889665357] [2024-11-14 05:24:13,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:13,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:24:13,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:24:13,461 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 05:24:13,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:24:13,485 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 05:24:13,486 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 05:24:13,487 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-11-14 05:24:13,489 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-11-14 05:24:13,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 05:24:13,493 INFO L407 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1] [2024-11-14 05:24:13,518 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 05:24:13,525 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:24:13 BoogieIcfgContainer [2024-11-14 05:24:13,526 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 05:24:13,526 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 05:24:13,527 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 05:24:13,527 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 05:24:13,528 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:23:46" (3/4) ... [2024-11-14 05:24:13,530 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 05:24:13,531 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 05:24:13,533 INFO L158 Benchmark]: Toolchain (without parser) took 28516.29ms. Allocated memory was 142.6MB in the beginning and 243.3MB in the end (delta: 100.7MB). Free memory was 116.4MB in the beginning and 106.9MB in the end (delta: 9.5MB). Peak memory consumption was 106.0MB. Max. memory is 16.1GB. [2024-11-14 05:24:13,533 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 117.4MB. Free memory is still 74.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:24:13,534 INFO L158 Benchmark]: CACSL2BoogieTranslator took 432.87ms. Allocated memory is still 142.6MB. Free memory was 116.0MB in the beginning and 104.0MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:24:13,534 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.60ms. Allocated memory is still 142.6MB. Free memory was 104.0MB in the beginning and 102.6MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:24:13,534 INFO L158 Benchmark]: Boogie Preprocessor took 36.05ms. Allocated memory is still 142.6MB. Free memory was 102.6MB in the beginning and 101.9MB in the end (delta: 775.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:24:13,535 INFO L158 Benchmark]: RCFGBuilder took 464.39ms. Allocated memory is still 142.6MB. Free memory was 101.9MB in the beginning and 85.5MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 05:24:13,535 INFO L158 Benchmark]: TraceAbstraction took 27512.54ms. Allocated memory was 142.6MB in the beginning and 243.3MB in the end (delta: 100.7MB). Free memory was 84.7MB in the beginning and 106.9MB in the end (delta: -22.2MB). Peak memory consumption was 72.5MB. Max. memory is 16.1GB. [2024-11-14 05:24:13,536 INFO L158 Benchmark]: Witness Printer took 5.10ms. Allocated memory is still 243.3MB. Free memory was 106.9MB in the beginning and 106.9MB in the end (delta: 31.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:24:13,537 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 117.4MB. Free memory is still 74.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 432.87ms. Allocated memory is still 142.6MB. Free memory was 116.0MB in the beginning and 104.0MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.60ms. Allocated memory is still 142.6MB. Free memory was 104.0MB in the beginning and 102.6MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.05ms. Allocated memory is still 142.6MB. Free memory was 102.6MB in the beginning and 101.9MB in the end (delta: 775.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 464.39ms. Allocated memory is still 142.6MB. Free memory was 101.9MB in the beginning and 85.5MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 27512.54ms. Allocated memory was 142.6MB in the beginning and 243.3MB in the end (delta: 100.7MB). Free memory was 84.7MB in the beginning and 106.9MB in the end (delta: -22.2MB). Peak memory consumption was 72.5MB. Max. memory is 16.1GB. * Witness Printer took 5.10ms. Allocated memory is still 243.3MB. Free memory was 106.9MB in the beginning and 106.9MB in the end (delta: 31.4kB). 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: 109]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 98, overapproximation of someBinaryDOUBLEComparisonOperation at line 108, overapproximation of someBinaryArithmeticFLOAToperation at line 100, overapproximation of someBinaryArithmeticFLOAToperation at line 92, overapproximation of someBinaryArithmeticFLOAToperation at line 87, overapproximation of someBinaryArithmeticFLOAToperation at line 102. Possible FailurePath: [L115] COND FALSE !(__VERIFIER_nondet_int()) [L118] CALL main2() [L97] float IN = __VERIFIER_nondet_float(); [L98] CALL assume_abort_if_not(IN > -0.6f && IN < 0.6f) [L82] COND FALSE !(!cond) [L98] RET assume_abort_if_not(IN > -0.6f && IN < 0.6f) [L100] CALL, EXPR f(IN) VAL [\old(x)=109] [L87] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L100] RET, EXPR f(IN) VAL [IN=109] [L100] CALL, EXPR fp(IN) VAL [\old(x)=109] [L92] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L100] RET, EXPR fp(IN) VAL [IN=109] [L100] float x = IN - f(IN)/fp(IN); [L102] CALL, EXPR f(x) VAL [\old(x)=110] [L87] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L102] RET, EXPR f(x) VAL [IN=109, x=110] [L102] CALL, EXPR fp(x) VAL [\old(x)=110] [L92] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L102] RET, EXPR fp(x) VAL [IN=109, x=110] [L102] x = x - f(x)/fp(x) [L108] COND TRUE !(x < 0.1) VAL [IN=109] [L109] reach_error() VAL [IN=109] - UnprovableResult [Line: 27]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 31 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 27.4s, OverallIterations: 7, TraceHistogramMax: 5, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 843 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 706 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 470 IncrementalHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 137 mSDtfsCounter, 470 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 171 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 573 ImplicationChecksByTransitivity, 13.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=5, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 19.8s InterpolantComputationTime, 133 NumberOfCodeBlocks, 133 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 137 ConstructedInterpolants, 0 QuantifiedInterpolants, 1869 SizeOfPredicates, 11 NumberOfNonLiveVariables, 282 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 13 InterpolantComputations, 2 PerfectInterpolantSequences, 0/81 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-14 05:24:13,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/gcd_4+newton_2_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a8b52922fdfe93dd417523e4e63c80c50c6631dbe5ff22aa1a5e25c09a617278 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:24:16,212 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:24:16,335 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-14 05:24:16,341 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:24:16,341 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:24:16,368 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:24:16,369 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:24:16,369 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:24:16,370 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:24:16,370 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:24:16,370 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:24:16,370 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:24:16,370 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:24:16,370 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:24:16,370 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:24:16,370 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:24:16,371 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:24:16,371 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:24:16,371 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:24:16,371 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:24:16,371 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:24:16,371 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:24:16,371 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:24:16,371 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:24:16,371 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 05:24:16,372 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 05:24:16,372 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:24:16,372 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 05:24:16,372 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:24:16,372 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:24:16,372 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:24:16,372 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:24:16,373 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 05:24:16,373 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:24:16,373 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:24:16,373 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:24:16,373 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:24:16,374 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:24:16,374 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:24:16,374 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 05:24:16,374 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 05:24:16,374 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:24:16,374 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:24:16,375 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E 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 -> Taipan 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 -> a8b52922fdfe93dd417523e4e63c80c50c6631dbe5ff22aa1a5e25c09a617278 [2024-11-14 05:24:16,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:24:16,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:24:16,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:24:16,736 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:24:16,736 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:24:16,737 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/combinations/gcd_4+newton_2_3.i Unable to find full path for "g++" [2024-11-14 05:24:18,715 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:24:18,995 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:24:18,998 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/sv-benchmarks/c/combinations/gcd_4+newton_2_3.i [2024-11-14 05:24:19,012 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/data/20ebec581/7835ad7319704ca492d0b2f968454fae/FLAGbef4fcded [2024-11-14 05:24:19,299 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/data/20ebec581/7835ad7319704ca492d0b2f968454fae [2024-11-14 05:24:19,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:24:19,304 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:24:19,306 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:24:19,306 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:24:19,310 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:24:19,311 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:24:19" (1/1) ... [2024-11-14 05:24:19,314 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1de04e6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:19, skipping insertion in model container [2024-11-14 05:24:19,314 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:24:19" (1/1) ... [2024-11-14 05:24:19,331 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:24:19,512 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_06f4371e-5923-4219-8740-c90b3c12862f/sv-benchmarks/c/combinations/gcd_4+newton_2_3.i[1224,1237] [2024-11-14 05:24:19,559 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_06f4371e-5923-4219-8740-c90b3c12862f/sv-benchmarks/c/combinations/gcd_4+newton_2_3.i[2827,2840] [2024-11-14 05:24:19,565 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:24:19,586 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:24:19,602 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_06f4371e-5923-4219-8740-c90b3c12862f/sv-benchmarks/c/combinations/gcd_4+newton_2_3.i[1224,1237] [2024-11-14 05:24:19,620 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_06f4371e-5923-4219-8740-c90b3c12862f/sv-benchmarks/c/combinations/gcd_4+newton_2_3.i[2827,2840] [2024-11-14 05:24:19,621 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:24:19,647 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:24:19,647 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:19 WrapperNode [2024-11-14 05:24:19,648 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:24:19,649 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:24:19,650 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:24:19,651 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:24:19,659 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:19" (1/1) ... [2024-11-14 05:24:19,677 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:19" (1/1) ... [2024-11-14 05:24:19,702 INFO L138 Inliner]: procedures = 28, calls = 26, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 75 [2024-11-14 05:24:19,703 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:24:19,705 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:24:19,705 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:24:19,705 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:24:19,714 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:19" (1/1) ... [2024-11-14 05:24:19,715 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:19" (1/1) ... [2024-11-14 05:24:19,719 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:19" (1/1) ... [2024-11-14 05:24:19,721 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:19" (1/1) ... [2024-11-14 05:24:19,735 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:19" (1/1) ... [2024-11-14 05:24:19,743 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:19" (1/1) ... [2024-11-14 05:24:19,747 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:19" (1/1) ... [2024-11-14 05:24:19,748 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:19" (1/1) ... [2024-11-14 05:24:19,751 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:24:19,752 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:24:19,752 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:24:19,752 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:24:19,753 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:19" (1/1) ... [2024-11-14 05:24:19,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:24:19,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:24:19,790 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:24:19,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:24:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:24:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 05:24:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-11-14 05:24:19,820 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-11-14 05:24:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-14 05:24:19,820 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-14 05:24:19,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:24:19,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:24:19,821 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-14 05:24:19,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-14 05:24:19,916 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:24:19,917 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:24:26,939 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-14 05:24:26,939 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:24:26,951 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:24:26,952 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:24:26,952 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:24:26 BoogieIcfgContainer [2024-11-14 05:24:26,952 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:24:26,956 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:24:26,956 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:24:26,962 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:24:26,962 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:24:19" (1/3) ... [2024-11-14 05:24:26,963 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48a0b4c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:24:26, skipping insertion in model container [2024-11-14 05:24:26,964 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:24:19" (2/3) ... [2024-11-14 05:24:26,964 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48a0b4c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:24:26, skipping insertion in model container [2024-11-14 05:24:26,964 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:24:26" (3/3) ... [2024-11-14 05:24:26,966 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_4+newton_2_3.i [2024-11-14 05:24:26,984 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:24:26,986 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG gcd_4+newton_2_3.i that has 4 procedures, 43 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2024-11-14 05:24:27,064 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:24:27,083 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=FINITE_AUTOMATA, 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;@29083841, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:24:27,083 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-14 05:24:27,087 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 30 states have (on average 1.4) internal successors, (42), 32 states have internal predecessors, (42), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-14 05:24:27,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-14 05:24:27,095 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:27,096 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:27,097 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:24:27,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:27,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1781433865, now seen corresponding path program 1 times [2024-11-14 05:24:27,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:24:27,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [815372208] [2024-11-14 05:24:27,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:27,117 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:24:27,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:24:27,121 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:24:27,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-14 05:24:27,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:27,341 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:24:27,350 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:24:27,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:24:27,487 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:24:27,488 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:24:27,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [815372208] [2024-11-14 05:24:27,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [815372208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:27,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:24:27,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:24:27,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008831793] [2024-11-14 05:24:27,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:27,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:24:27,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:24:27,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:24:27,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:24:27,528 INFO L87 Difference]: Start difference. First operand has 43 states, 30 states have (on average 1.4) internal successors, (42), 32 states have internal predecessors, (42), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:24:27,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:27,657 INFO L93 Difference]: Finished difference Result 84 states and 113 transitions. [2024-11-14 05:24:27,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:24:27,663 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-14 05:24:27,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:27,671 INFO L225 Difference]: With dead ends: 84 [2024-11-14 05:24:27,672 INFO L226 Difference]: Without dead ends: 39 [2024-11-14 05:24:27,675 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:24:27,679 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 7 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:27,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 86 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:24:27,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-14 05:24:27,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2024-11-14 05:24:27,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 26 states have internal predecessors, (29), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 05:24:27,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2024-11-14 05:24:27,723 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 11 [2024-11-14 05:24:27,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:27,723 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions. [2024-11-14 05:24:27,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:24:27,724 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2024-11-14 05:24:27,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-14 05:24:27,726 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:27,726 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:27,733 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-14 05:24:27,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:24:27,931 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:24:27,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:27,932 INFO L85 PathProgramCache]: Analyzing trace with hash -503460697, now seen corresponding path program 1 times [2024-11-14 05:24:27,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:24:27,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [779143606] [2024-11-14 05:24:27,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:27,936 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:24:27,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:24:27,939 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:24:27,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-14 05:24:28,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:28,082 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:24:28,086 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:24:28,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:24:28,190 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:24:28,190 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:24:28,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [779143606] [2024-11-14 05:24:28,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [779143606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:28,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:24:28,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:24:28,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90384251] [2024-11-14 05:24:28,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:28,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:24:28,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:24:28,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:24:28,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:24:28,194 INFO L87 Difference]: Start difference. First operand 36 states and 42 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:24:28,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:28,313 INFO L93 Difference]: Finished difference Result 52 states and 63 transitions. [2024-11-14 05:24:28,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:24:28,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-14 05:24:28,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:28,315 INFO L225 Difference]: With dead ends: 52 [2024-11-14 05:24:28,315 INFO L226 Difference]: Without dead ends: 38 [2024-11-14 05:24:28,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:24:28,318 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 4 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:28,319 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 69 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:24:28,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-14 05:24:28,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-14 05:24:28,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 28 states have internal predecessors, (31), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 05:24:28,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2024-11-14 05:24:28,337 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 13 [2024-11-14 05:24:28,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:28,338 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2024-11-14 05:24:28,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:24:28,338 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2024-11-14 05:24:28,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-14 05:24:28,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:28,340 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:28,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-14 05:24:28,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:24:28,542 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:24:28,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:28,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1727486596, now seen corresponding path program 1 times [2024-11-14 05:24:28,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:24:28,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1166238651] [2024-11-14 05:24:28,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:28,543 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:24:28,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:24:28,546 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:24:28,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-14 05:24:28,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:28,690 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:24:28,694 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:24:29,007 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:24:29,008 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:24:29,008 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:24:29,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1166238651] [2024-11-14 05:24:29,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1166238651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:24:29,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:24:29,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:24:29,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641949259] [2024-11-14 05:24:29,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:24:29,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:24:29,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:24:29,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:24:29,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:24:29,011 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:24:29,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:29,138 INFO L93 Difference]: Finished difference Result 53 states and 63 transitions. [2024-11-14 05:24:29,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:24:29,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-14 05:24:29,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:29,140 INFO L225 Difference]: With dead ends: 53 [2024-11-14 05:24:29,140 INFO L226 Difference]: Without dead ends: 40 [2024-11-14 05:24:29,141 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:24:29,142 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 0 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:29,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 67 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:24:29,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-14 05:24:29,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2024-11-14 05:24:29,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 30 states have internal predecessors, (33), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 05:24:29,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2024-11-14 05:24:29,152 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 15 [2024-11-14 05:24:29,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:29,152 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2024-11-14 05:24:29,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:24:29,152 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2024-11-14 05:24:29,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-14 05:24:29,153 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:29,154 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:29,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-14 05:24:29,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:24:29,355 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:24:29,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:29,355 INFO L85 PathProgramCache]: Analyzing trace with hash -2123850399, now seen corresponding path program 1 times [2024-11-14 05:24:29,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:24:29,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2048890833] [2024-11-14 05:24:29,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:29,356 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:24:29,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:24:29,358 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:24:29,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-14 05:24:29,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:29,488 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 05:24:29,491 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:24:29,924 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:24:29,924 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:24:30,276 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:24:30,279 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:24:30,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2048890833] [2024-11-14 05:24:30,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2048890833] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:24:30,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [992397604] [2024-11-14 05:24:30,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:30,280 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 05:24:30,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 05:24:30,293 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 05:24:30,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-14 05:24:30,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:30,504 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 05:24:30,507 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:24:30,798 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:24:30,799 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:24:30,959 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:24:30,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [992397604] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:24:30,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976937736] [2024-11-14 05:24:30,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:30,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:24:30,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:24:30,963 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:24:30,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 05:24:31,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:24:31,053 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 05:24:31,058 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:24:31,478 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:24:31,479 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:24:32,024 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:24:32,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1976937736] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:24:32,025 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 05:24:32,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 5, 5] total 10 [2024-11-14 05:24:32,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158968134] [2024-11-14 05:24:32,026 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 05:24:32,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-14 05:24:32,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:24:32,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-14 05:24:32,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-14 05:24:32,028 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand has 10 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:24:32,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:24:32,759 INFO L93 Difference]: Finished difference Result 60 states and 73 transitions. [2024-11-14 05:24:32,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 05:24:32,760 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-11-14 05:24:32,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:24:32,762 INFO L225 Difference]: With dead ends: 60 [2024-11-14 05:24:32,762 INFO L226 Difference]: Without dead ends: 47 [2024-11-14 05:24:32,763 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-11-14 05:24:32,764 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 7 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:24:32,764 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 254 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 05:24:32,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-11-14 05:24:32,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2024-11-14 05:24:32,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 35 states have internal predecessors, (38), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 05:24:32,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2024-11-14 05:24:32,776 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 17 [2024-11-14 05:24:32,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:24:32,776 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2024-11-14 05:24:32,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 05:24:32,776 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2024-11-14 05:24:32,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-14 05:24:32,777 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:24:32,778 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:24:32,808 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-14 05:24:32,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-14 05:24:33,188 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-11-14 05:24:33,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 05:24:33,387 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:24:33,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:24:33,387 INFO L85 PathProgramCache]: Analyzing trace with hash 549276279, now seen corresponding path program 1 times [2024-11-14 05:24:33,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:24:33,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1416734561] [2024-11-14 05:24:33,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:24:33,392 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:24:33,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:24:33,394 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:24:33,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06f4371e-5923-4219-8740-c90b3c12862f/bin/utaipan-verify-sOmjnqqW8E/mathsat -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