./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-60.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-60.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh --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 e1357d444372cb240879d52665bbb1bc7c8a774ef50fd6fb938c499d379831d6 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 14:47:37,423 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 14:47:37,488 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 14:47:37,494 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 14:47:37,494 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 14:47:37,521 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 14:47:37,521 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 14:47:37,522 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 14:47:37,523 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 14:47:37,523 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 14:47:37,524 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 14:47:37,524 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 14:47:37,525 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 14:47:37,525 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 14:47:37,526 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 14:47:37,526 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 14:47:37,527 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 14:47:37,527 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 14:47:37,528 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 14:47:37,528 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 14:47:37,529 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 14:47:37,529 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 14:47:37,530 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 14:47:37,530 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 14:47:37,531 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 14:47:37,531 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 14:47:37,532 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 14:47:37,532 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 14:47:37,533 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 14:47:37,533 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 14:47:37,534 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 14:47:37,534 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 14:47:37,534 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 14:47:37,535 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 14:47:37,535 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 14:47:37,536 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 14:47:37,536 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 14:47:37,536 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:47:37,536 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 14:47:37,537 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 14:47:37,537 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 14:47:37,537 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 14:47:37,537 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 14:47:37,538 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 14:47:37,538 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 14:47:37,538 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 14:47:37,538 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 14:47:37,538 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1357d444372cb240879d52665bbb1bc7c8a774ef50fd6fb938c499d379831d6 [2023-12-02 14:47:37,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 14:47:37,793 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 14:47:37,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 14:47:37,797 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 14:47:37,797 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 14:47:37,798 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-60.i [2023-12-02 14:47:40,680 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 14:47:40,862 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 14:47:40,863 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-60.i [2023-12-02 14:47:40,872 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/data/519e30ad4/5178edee3b6842bca2f4775adaadfc27/FLAG12722869f [2023-12-02 14:47:40,887 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/data/519e30ad4/5178edee3b6842bca2f4775adaadfc27 [2023-12-02 14:47:40,890 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 14:47:40,892 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 14:47:40,893 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 14:47:40,894 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 14:47:40,899 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 14:47:40,900 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:47:40" (1/1) ... [2023-12-02 14:47:40,901 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b11fdde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:47:40, skipping insertion in model container [2023-12-02 14:47:40,902 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:47:40" (1/1) ... [2023-12-02 14:47:40,928 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 14:47:41,074 WARN L240 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_9c28c0cb-74b0-43fe-ac69-e99618406091/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-60.i[915,928] [2023-12-02 14:47:41,101 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:47:41,115 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 14:47:41,129 WARN L240 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_9c28c0cb-74b0-43fe-ac69-e99618406091/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-60.i[915,928] [2023-12-02 14:47:41,142 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:47:41,158 INFO L206 MainTranslator]: Completed translation [2023-12-02 14:47:41,159 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:47:41 WrapperNode [2023-12-02 14:47:41,159 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 14:47:41,160 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 14:47:41,161 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 14:47:41,161 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 14:47:41,169 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:47:41" (1/1) ... [2023-12-02 14:47:41,177 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:47:41" (1/1) ... [2023-12-02 14:47:41,205 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 113 [2023-12-02 14:47:41,205 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 14:47:41,206 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 14:47:41,206 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 14:47:41,207 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 14:47:41,216 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:47:41" (1/1) ... [2023-12-02 14:47:41,216 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:47:41" (1/1) ... [2023-12-02 14:47:41,218 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:47:41" (1/1) ... [2023-12-02 14:47:41,219 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:47:41" (1/1) ... [2023-12-02 14:47:41,223 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:47:41" (1/1) ... [2023-12-02 14:47:41,227 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:47:41" (1/1) ... [2023-12-02 14:47:41,229 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:47:41" (1/1) ... [2023-12-02 14:47:41,230 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:47:41" (1/1) ... [2023-12-02 14:47:41,232 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 14:47:41,233 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 14:47:41,233 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 14:47:41,234 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 14:47:41,234 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:47:41" (1/1) ... [2023-12-02 14:47:41,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:47:41,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:47:41,264 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 14:47:41,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 14:47:41,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 14:47:41,298 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 14:47:41,298 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 14:47:41,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 14:47:41,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 14:47:41,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 14:47:41,372 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 14:47:41,374 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 14:47:41,585 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 14:47:41,738 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 14:47:41,739 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 14:47:41,740 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:47:41 BoogieIcfgContainer [2023-12-02 14:47:41,741 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 14:47:41,744 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 14:47:41,744 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 14:47:41,746 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 14:47:41,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:47:40" (1/3) ... [2023-12-02 14:47:41,747 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1212f384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:47:41, skipping insertion in model container [2023-12-02 14:47:41,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:47:41" (2/3) ... [2023-12-02 14:47:41,748 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1212f384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:47:41, skipping insertion in model container [2023-12-02 14:47:41,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:47:41" (3/3) ... [2023-12-02 14:47:41,749 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-60.i [2023-12-02 14:47:41,764 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 14:47:41,765 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 14:47:41,809 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 14:47:41,815 INFO L357 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, mHoare=true, 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;@1b5b6e9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 14:47:41,816 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 14:47:41,819 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-02 14:47:41,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-02 14:47:41,827 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:47:41,828 INFO L195 NwaCegarLoop]: trace histogram [12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:47:41,828 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:47:41,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:47:41,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1622266987, now seen corresponding path program 1 times [2023-12-02 14:47:41,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:47:41,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39917308] [2023-12-02 14:47:41,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:47:41,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:47:42,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 14:47:42,065 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 14:47:42,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 14:47:42,180 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 14:47:42,182 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 14:47:42,183 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 14:47:42,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 14:47:42,189 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 14:47:42,193 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 14:47:42,237 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:47:42 BoogieIcfgContainer [2023-12-02 14:47:42,237 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 14:47:42,238 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 14:47:42,238 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 14:47:42,239 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 14:47:42,239 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:47:41" (3/4) ... [2023-12-02 14:47:42,241 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 14:47:42,243 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 14:47:42,244 INFO L158 Benchmark]: Toolchain (without parser) took 1351.77ms. Allocated memory was 155.2MB in the beginning and 203.4MB in the end (delta: 48.2MB). Free memory was 108.3MB in the beginning and 161.1MB in the end (delta: -52.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 14:47:42,244 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 155.2MB. Free memory is still 129.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 14:47:42,245 INFO L158 Benchmark]: CACSL2BoogieTranslator took 266.13ms. Allocated memory is still 155.2MB. Free memory was 108.0MB in the beginning and 96.9MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-12-02 14:47:42,246 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.35ms. Allocated memory is still 155.2MB. Free memory was 96.9MB in the beginning and 94.7MB in the end (delta: 2.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 14:47:42,246 INFO L158 Benchmark]: Boogie Preprocessor took 26.17ms. Allocated memory is still 155.2MB. Free memory was 94.7MB in the beginning and 93.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 14:47:42,247 INFO L158 Benchmark]: RCFGBuilder took 507.56ms. Allocated memory is still 155.2MB. Free memory was 93.4MB in the beginning and 65.0MB in the end (delta: 28.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-12-02 14:47:42,248 INFO L158 Benchmark]: TraceAbstraction took 493.76ms. Allocated memory was 155.2MB in the beginning and 203.4MB in the end (delta: 48.2MB). Free memory was 64.3MB in the beginning and 161.1MB in the end (delta: -96.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 14:47:42,248 INFO L158 Benchmark]: Witness Printer took 4.65ms. Allocated memory is still 203.4MB. Free memory is still 161.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 14:47:42,252 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 155.2MB. Free memory is still 129.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 266.13ms. Allocated memory is still 155.2MB. Free memory was 108.0MB in the beginning and 96.9MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.35ms. Allocated memory is still 155.2MB. Free memory was 96.9MB in the beginning and 94.7MB in the end (delta: 2.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.17ms. Allocated memory is still 155.2MB. Free memory was 94.7MB in the beginning and 93.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 507.56ms. Allocated memory is still 155.2MB. Free memory was 93.4MB in the beginning and 65.0MB in the end (delta: 28.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 493.76ms. Allocated memory was 155.2MB in the beginning and 203.4MB in the end (delta: 48.2MB). Free memory was 64.3MB in the beginning and 161.1MB in the end (delta: -96.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.65ms. Allocated memory is still 203.4MB. Free memory is still 161.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 37. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = 1; [L23] unsigned char var_1_2 = 1; [L24] unsigned char var_1_3 = 1; [L25] unsigned char var_1_4 = 0; [L26] signed char var_1_5 = 4; [L27] signed char var_1_6 = -5; [L28] signed char var_1_7 = 2; [L29] signed char var_1_8 = -32; [L68] isInitial = 1 [L69] FCALL initially() [L70] COND TRUE 1 [L71] FCALL updateLastVariables() [L72] CALL updateVariables() [L42] var_1_2 = __VERIFIER_nondet_uchar() [L43] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_3=1, var_1_4=0, var_1_5=4, var_1_6=-5, var_1_7=2, var_1_8=-32] [L20] COND FALSE !(!cond) [L43] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_1=1, var_1_3=1, var_1_4=0, var_1_5=4, var_1_6=-5, var_1_7=2, var_1_8=-32] [L44] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_2=0, var_1_3=1, var_1_4=0, var_1_5=4, var_1_6=-5, var_1_7=2, var_1_8=-32] [L20] COND FALSE !(!cond) [L44] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_1=1, var_1_2=0, var_1_3=1, var_1_4=0, var_1_5=4, var_1_6=-5, var_1_7=2, var_1_8=-32] [L45] var_1_3 = __VERIFIER_nondet_uchar() [L46] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_2=0, var_1_4=0, var_1_5=4, var_1_6=-5, var_1_7=2, var_1_8=-32] [L20] COND FALSE !(!cond) [L46] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_1=1, var_1_2=0, var_1_4=0, var_1_5=4, var_1_6=-5, var_1_7=2, var_1_8=-32] [L47] CALL assume_abort_if_not(var_1_3 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=4, var_1_6=-5, var_1_7=2, var_1_8=-32] [L20] COND FALSE !(!cond) [L47] RET assume_abort_if_not(var_1_3 <= 1) VAL [isInitial=1, var_1_1=1, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=4, var_1_6=-5, var_1_7=2, var_1_8=-32] [L48] var_1_4 = __VERIFIER_nondet_uchar() [L49] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=4, var_1_6=-5, var_1_7=2, var_1_8=-32] [L20] COND FALSE !(!cond) [L49] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_1=1, var_1_2=0, var_1_3=0, var_1_5=4, var_1_6=-5, var_1_7=2, var_1_8=-32] [L50] CALL assume_abort_if_not(var_1_4 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=4, var_1_6=-5, var_1_7=2, var_1_8=-32] [L20] COND FALSE !(!cond) [L50] RET assume_abort_if_not(var_1_4 <= 1) VAL [isInitial=1, var_1_1=1, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=4, var_1_6=-5, var_1_7=2, var_1_8=-32] [L51] var_1_5 = __VERIFIER_nondet_char() [L52] CALL assume_abort_if_not(var_1_5 >= -63) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=-1, var_1_6=-5, var_1_7=2, var_1_8=-32] [L20] COND FALSE !(!cond) [L52] RET assume_abort_if_not(var_1_5 >= -63) VAL [isInitial=1, var_1_1=1, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=-1, var_1_6=-5, var_1_7=2, var_1_8=-32] [L53] CALL assume_abort_if_not(var_1_5 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=-1, var_1_6=-5, var_1_7=2, var_1_8=-32] [L20] COND FALSE !(!cond) [L53] RET assume_abort_if_not(var_1_5 <= 63) VAL [isInitial=1, var_1_1=1, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=-1, var_1_6=-5, var_1_7=2, var_1_8=-32] [L54] var_1_6 = __VERIFIER_nondet_char() [L55] CALL assume_abort_if_not(var_1_6 >= -63) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=-1, var_1_6=63, var_1_7=2, var_1_8=-32] [L20] COND FALSE !(!cond) [L55] RET assume_abort_if_not(var_1_6 >= -63) VAL [isInitial=1, var_1_1=1, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=-1, var_1_6=63, var_1_7=2, var_1_8=-32] [L56] CALL assume_abort_if_not(var_1_6 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=-1, var_1_6=63, var_1_7=2, var_1_8=-32] [L20] COND FALSE !(!cond) [L56] RET assume_abort_if_not(var_1_6 <= 63) VAL [isInitial=1, var_1_1=1, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=-1, var_1_6=63, var_1_7=2, var_1_8=-32] [L57] var_1_7 = __VERIFIER_nondet_char() [L58] CALL assume_abort_if_not(var_1_7 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=-1, var_1_6=63, var_1_7=126, var_1_8=-32] [L20] COND FALSE !(!cond) [L58] RET assume_abort_if_not(var_1_7 >= -127) VAL [isInitial=1, var_1_1=1, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=-1, var_1_6=63, var_1_7=126, var_1_8=-32] [L59] CALL assume_abort_if_not(var_1_7 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=-1, var_1_6=63, var_1_7=126, var_1_8=-32] [L20] COND FALSE !(!cond) [L59] RET assume_abort_if_not(var_1_7 <= 126) VAL [isInitial=1, var_1_1=1, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=-1, var_1_6=63, var_1_7=126, var_1_8=-32] [L72] RET updateVariables() [L73] CALL step() [L33] COND FALSE !((var_1_2 || var_1_3) && var_1_4) [L36] signed char stepLocal_0 = var_1_5; [L37] EXPR (-100 + var_1_1) ^ var_1_1 [L37] COND FALSE !(stepLocal_0 > ((-100 + var_1_1) ^ var_1_1)) [L73] RET step() [L74] CALL, EXPR property() [L64] EXPR (((var_1_2 || var_1_3) && var_1_4) ? (var_1_1 == ((signed char) (((((var_1_5 + var_1_6)) < (var_1_7)) ? ((var_1_5 + var_1_6)) : (var_1_7))))) : 1) && ((var_1_5 > ((-100 + var_1_1) ^ var_1_1)) ? (var_1_8 == ((signed char) var_1_6)) : 1) [L64] EXPR (-100 + var_1_1) ^ var_1_1 [L64] EXPR (((var_1_2 || var_1_3) && var_1_4) ? (var_1_1 == ((signed char) (((((var_1_5 + var_1_6)) < (var_1_7)) ? ((var_1_5 + var_1_6)) : (var_1_7))))) : 1) && ((var_1_5 > ((-100 + var_1_1) ^ var_1_1)) ? (var_1_8 == ((signed char) var_1_6)) : 1) [L64-L65] return (((var_1_2 || var_1_3) && var_1_4) ? (var_1_1 == ((signed char) (((((var_1_5 + var_1_6)) < (var_1_7)) ? ((var_1_5 + var_1_6)) : (var_1_7))))) : 1) && ((var_1_5 > ((-100 + var_1_1) ^ var_1_1)) ? (var_1_8 == ((signed char) var_1_6)) : 1) ; [L74] RET, EXPR property() [L74] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_1=1, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=-1, var_1_6=63, var_1_7=126, var_1_8=-32] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_1=1, var_1_2=0, var_1_3=0, var_1_4=1, var_1_5=-1, var_1_6=63, var_1_7=126, var_1_8=-32] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 [2023-12-02 14:47:42,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-60.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh --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 e1357d444372cb240879d52665bbb1bc7c8a774ef50fd6fb938c499d379831d6 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 14:47:44,354 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 14:47:44,427 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 14:47:44,433 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 14:47:44,433 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 14:47:44,461 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 14:47:44,462 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 14:47:44,462 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 14:47:44,463 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 14:47:44,463 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 14:47:44,464 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 14:47:44,464 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 14:47:44,465 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 14:47:44,466 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 14:47:44,466 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 14:47:44,467 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 14:47:44,468 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 14:47:44,468 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 14:47:44,469 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 14:47:44,469 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 14:47:44,470 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 14:47:44,470 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 14:47:44,471 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 14:47:44,471 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 14:47:44,471 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 14:47:44,472 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 14:47:44,472 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 14:47:44,473 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 14:47:44,473 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 14:47:44,474 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 14:47:44,474 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 14:47:44,475 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 14:47:44,475 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 14:47:44,475 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 14:47:44,476 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:47:44,476 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 14:47:44,476 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 14:47:44,476 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 14:47:44,477 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 14:47:44,477 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 14:47:44,477 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 14:47:44,478 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 14:47:44,478 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 14:47:44,478 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 14:47:44,478 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1357d444372cb240879d52665bbb1bc7c8a774ef50fd6fb938c499d379831d6 [2023-12-02 14:47:44,768 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 14:47:44,790 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 14:47:44,793 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 14:47:44,794 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 14:47:44,795 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 14:47:44,796 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-60.i [2023-12-02 14:47:47,556 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 14:47:47,775 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 14:47:47,775 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-60.i [2023-12-02 14:47:47,784 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/data/df420c667/cd0b5379e0d14033abe1902cbf5e6351/FLAGeb64fa25c [2023-12-02 14:47:47,797 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/data/df420c667/cd0b5379e0d14033abe1902cbf5e6351 [2023-12-02 14:47:47,799 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 14:47:47,800 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 14:47:47,801 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 14:47:47,802 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 14:47:47,805 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 14:47:47,806 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:47:47" (1/1) ... [2023-12-02 14:47:47,807 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a8ba084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:47:47, skipping insertion in model container [2023-12-02 14:47:47,807 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:47:47" (1/1) ... [2023-12-02 14:47:47,827 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 14:47:47,947 WARN L240 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_9c28c0cb-74b0-43fe-ac69-e99618406091/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-60.i[915,928] [2023-12-02 14:47:47,974 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:47:47,991 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 14:47:48,002 WARN L240 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_9c28c0cb-74b0-43fe-ac69-e99618406091/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-60.i[915,928] [2023-12-02 14:47:48,015 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:47:48,032 INFO L206 MainTranslator]: Completed translation [2023-12-02 14:47:48,032 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:47:48 WrapperNode [2023-12-02 14:47:48,032 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 14:47:48,033 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 14:47:48,033 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 14:47:48,034 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 14:47:48,039 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:47:48" (1/1) ... [2023-12-02 14:47:48,048 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:47:48" (1/1) ... [2023-12-02 14:47:48,070 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 77 [2023-12-02 14:47:48,070 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 14:47:48,071 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 14:47:48,072 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 14:47:48,072 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 14:47:48,079 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:47:48" (1/1) ... [2023-12-02 14:47:48,079 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:47:48" (1/1) ... [2023-12-02 14:47:48,082 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:47:48" (1/1) ... [2023-12-02 14:47:48,083 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:47:48" (1/1) ... [2023-12-02 14:47:48,091 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:47:48" (1/1) ... [2023-12-02 14:47:48,094 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:47:48" (1/1) ... [2023-12-02 14:47:48,097 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:47:48" (1/1) ... [2023-12-02 14:47:48,098 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:47:48" (1/1) ... [2023-12-02 14:47:48,102 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 14:47:48,103 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 14:47:48,103 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 14:47:48,103 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 14:47:48,104 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:47:48" (1/1) ... [2023-12-02 14:47:48,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:47:48,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:47:48,129 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 14:47:48,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 14:47:48,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 14:47:48,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 14:47:48,180 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 14:47:48,180 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 14:47:48,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 14:47:48,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 14:47:48,249 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 14:47:48,251 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 14:47:48,408 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 14:47:48,457 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 14:47:48,457 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 14:47:48,458 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:47:48 BoogieIcfgContainer [2023-12-02 14:47:48,458 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 14:47:48,460 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 14:47:48,461 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 14:47:48,464 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 14:47:48,464 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:47:47" (1/3) ... [2023-12-02 14:47:48,464 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@428e43dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:47:48, skipping insertion in model container [2023-12-02 14:47:48,465 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:47:48" (2/3) ... [2023-12-02 14:47:48,465 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@428e43dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:47:48, skipping insertion in model container [2023-12-02 14:47:48,466 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:47:48" (3/3) ... [2023-12-02 14:47:48,467 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-60.i [2023-12-02 14:47:48,481 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 14:47:48,481 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 14:47:48,521 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 14:47:48,526 INFO L357 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, mHoare=true, 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;@58c8a608, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 14:47:48,527 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 14:47:48,534 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 19 states have (on average 1.368421052631579) internal successors, (26), 20 states have internal predecessors, (26), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-02 14:47:48,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-02 14:47:48,545 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:47:48,545 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:47:48,546 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:47:48,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:47:48,551 INFO L85 PathProgramCache]: Analyzing trace with hash -238086645, now seen corresponding path program 1 times [2023-12-02 14:47:48,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:47:48,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [638666073] [2023-12-02 14:47:48,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:47:48,565 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 [2023-12-02 14:47:48,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:47:48,570 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 14:47:48,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 14:47:48,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:47:48,685 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 14:47:48,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:47:48,739 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2023-12-02 14:47:48,739 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:47:48,740 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:47:48,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [638666073] [2023-12-02 14:47:48,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [638666073] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:47:48,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:47:48,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 14:47:48,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312822500] [2023-12-02 14:47:48,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:47:48,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 14:47:48,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:47:48,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 14:47:48,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 14:47:48,779 INFO L87 Difference]: Start difference. First operand has 34 states, 19 states have (on average 1.368421052631579) internal successors, (26), 20 states have internal predecessors, (26), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-02 14:47:48,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:47:48,826 INFO L93 Difference]: Finished difference Result 65 states and 110 transitions. [2023-12-02 14:47:48,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 14:47:48,829 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) Word has length 74 [2023-12-02 14:47:48,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:47:48,836 INFO L225 Difference]: With dead ends: 65 [2023-12-02 14:47:48,836 INFO L226 Difference]: Without dead ends: 32 [2023-12-02 14:47:48,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 14:47:48,843 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:47:48,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:47:48,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-12-02 14:47:48,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-12-02 14:47:48,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-02 14:47:48,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 45 transitions. [2023-12-02 14:47:48,886 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 45 transitions. Word has length 74 [2023-12-02 14:47:48,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:47:48,887 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 45 transitions. [2023-12-02 14:47:48,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-02 14:47:48,888 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 45 transitions. [2023-12-02 14:47:48,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-02 14:47:48,891 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:47:48,892 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:47:48,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-02 14:47:49,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 14:47:49,094 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:47:49,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:47:49,095 INFO L85 PathProgramCache]: Analyzing trace with hash -2086146549, now seen corresponding path program 1 times [2023-12-02 14:47:49,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:47:49,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1552252654] [2023-12-02 14:47:49,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:47:49,096 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 [2023-12-02 14:47:49,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:47:49,097 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 14:47:49,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 14:47:49,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:47:49,179 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 14:47:49,185 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:47:50,376 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-02 14:47:50,376 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:47:50,376 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:47:50,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1552252654] [2023-12-02 14:47:50,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1552252654] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:47:50,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:47:50,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 14:47:50,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689167222] [2023-12-02 14:47:50,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:47:50,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 14:47:50,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:47:50,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 14:47:50,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 14:47:50,381 INFO L87 Difference]: Start difference. First operand 32 states and 45 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-02 14:47:50,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:47:50,663 INFO L93 Difference]: Finished difference Result 72 states and 96 transitions. [2023-12-02 14:47:50,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 14:47:50,664 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 74 [2023-12-02 14:47:50,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:47:50,666 INFO L225 Difference]: With dead ends: 72 [2023-12-02 14:47:50,667 INFO L226 Difference]: Without dead ends: 70 [2023-12-02 14:47:50,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-02 14:47:50,669 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 55 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 14:47:50,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 148 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 14:47:50,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-12-02 14:47:50,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 52. [2023-12-02 14:47:50,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 32 states have internal predecessors, (36), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-02 14:47:50,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 72 transitions. [2023-12-02 14:47:50,693 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 72 transitions. Word has length 74 [2023-12-02 14:47:50,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:47:50,694 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 72 transitions. [2023-12-02 14:47:50,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-02 14:47:50,695 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 72 transitions. [2023-12-02 14:47:50,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-02 14:47:50,696 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:47:50,697 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:47:50,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-02 14:47:50,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 14:47:50,898 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:47:50,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:47:50,899 INFO L85 PathProgramCache]: Analyzing trace with hash -2086086967, now seen corresponding path program 1 times [2023-12-02 14:47:50,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:47:50,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1452711266] [2023-12-02 14:47:50,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:47:50,900 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 [2023-12-02 14:47:50,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:47:50,901 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 14:47:50,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 14:47:50,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:47:50,971 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 14:47:50,977 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:47:52,363 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 150 proven. 24 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-12-02 14:47:52,364 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:47:53,803 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-02 14:47:53,803 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:47:53,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1452711266] [2023-12-02 14:47:53,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1452711266] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-02 14:47:53,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 14:47:53,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 16 [2023-12-02 14:47:53,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023057344] [2023-12-02 14:47:53,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:47:53,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 14:47:53,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:47:53,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 14:47:53,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2023-12-02 14:47:53,807 INFO L87 Difference]: Start difference. First operand 52 states and 72 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-02 14:47:54,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:47:54,854 INFO L93 Difference]: Finished difference Result 84 states and 113 transitions. [2023-12-02 14:47:54,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 14:47:54,855 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 74 [2023-12-02 14:47:54,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:47:54,859 INFO L225 Difference]: With dead ends: 84 [2023-12-02 14:47:54,859 INFO L226 Difference]: Without dead ends: 82 [2023-12-02 14:47:54,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2023-12-02 14:47:54,861 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 54 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-02 14:47:54,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 157 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-02 14:47:54,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2023-12-02 14:47:54,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 50. [2023-12-02 14:47:54,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 30 states have internal predecessors, (33), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-02 14:47:54,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 69 transitions. [2023-12-02 14:47:54,883 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 69 transitions. Word has length 74 [2023-12-02 14:47:54,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:47:54,884 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 69 transitions. [2023-12-02 14:47:54,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-02 14:47:54,884 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 69 transitions. [2023-12-02 14:47:54,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-02 14:47:54,886 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:47:54,886 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:47:54,889 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-02 14:47:55,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 14:47:55,087 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:47:55,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:47:55,088 INFO L85 PathProgramCache]: Analyzing trace with hash -2028888247, now seen corresponding path program 1 times [2023-12-02 14:47:55,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:47:55,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1455087323] [2023-12-02 14:47:55,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:47:55,090 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 [2023-12-02 14:47:55,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:47:55,091 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 14:47:55,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 14:47:55,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:47:55,155 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 14:47:55,159 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:47:55,696 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-02 14:47:55,697 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:47:55,697 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:47:55,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1455087323] [2023-12-02 14:47:55,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1455087323] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:47:55,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:47:55,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 14:47:55,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146656518] [2023-12-02 14:47:55,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:47:55,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 14:47:55,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:47:55,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 14:47:55,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 14:47:55,700 INFO L87 Difference]: Start difference. First operand 50 states and 69 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-02 14:47:55,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:47:55,777 INFO L93 Difference]: Finished difference Result 57 states and 76 transitions. [2023-12-02 14:47:55,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 14:47:55,778 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 74 [2023-12-02 14:47:55,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:47:55,779 INFO L225 Difference]: With dead ends: 57 [2023-12-02 14:47:55,779 INFO L226 Difference]: Without dead ends: 55 [2023-12-02 14:47:55,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-02 14:47:55,781 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 13 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 124 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 [2023-12-02 14:47:55,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 124 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:47:55,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-12-02 14:47:55,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 52. [2023-12-02 14:47:55,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 31 states have (on average 1.1290322580645162) internal successors, (35), 32 states have internal predecessors, (35), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-02 14:47:55,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2023-12-02 14:47:55,794 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 74 [2023-12-02 14:47:55,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:47:55,795 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions. [2023-12-02 14:47:55,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-02 14:47:55,795 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2023-12-02 14:47:55,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-02 14:47:55,797 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:47:55,797 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:47:55,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/mathsat -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)] Forceful destruction successful, exit code 0 [2023-12-02 14:47:55,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 14:47:55,999 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:47:56,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:47:56,000 INFO L85 PathProgramCache]: Analyzing trace with hash -2028828665, now seen corresponding path program 1 times [2023-12-02 14:47:56,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:47:56,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1024066881] [2023-12-02 14:47:56,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:47:56,001 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 14:47:56,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:47:56,002 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 14:47:56,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-02 14:47:56,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:47:56,060 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 14:47:56,063 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:47:56,250 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 143 proven. 15 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-12-02 14:47:56,250 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:47:56,461 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:47:56,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1024066881] [2023-12-02 14:47:56,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1024066881] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:47:56,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [40787010] [2023-12-02 14:47:56,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:47:56,462 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 14:47:56,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 14:47:56,478 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 14:47:56,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-02 14:47:56,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:47:56,564 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 14:47:56,566 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:47:56,741 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 143 proven. 15 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-12-02 14:47:56,741 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:47:56,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [40787010] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:47:56,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599872241] [2023-12-02 14:47:56,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:47:56,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:47:56,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:47:56,872 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:47:56,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-02 14:47:56,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:47:56,937 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 14:47:56,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:47:57,116 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 143 proven. 15 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-12-02 14:47:57,117 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:47:57,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599872241] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:47:57,243 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 14:47:57,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 6 [2023-12-02 14:47:57,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333873953] [2023-12-02 14:47:57,244 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 14:47:57,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 14:47:57,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:47:57,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 14:47:57,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-12-02 14:47:57,246 INFO L87 Difference]: Start difference. First operand 52 states and 71 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 14:47:57,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:47:57,467 INFO L93 Difference]: Finished difference Result 153 states and 208 transitions. [2023-12-02 14:47:57,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 14:47:57,468 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 74 [2023-12-02 14:47:57,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:47:57,470 INFO L225 Difference]: With dead ends: 153 [2023-12-02 14:47:57,471 INFO L226 Difference]: Without dead ends: 102 [2023-12-02 14:47:57,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2023-12-02 14:47:57,473 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 25 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:47:57,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 97 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:47:57,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-12-02 14:47:57,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 98. [2023-12-02 14:47:57,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 56 states have (on average 1.0892857142857142) internal successors, (61), 58 states have internal predecessors, (61), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 34 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-02 14:47:57,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 133 transitions. [2023-12-02 14:47:57,497 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 133 transitions. Word has length 74 [2023-12-02 14:47:57,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:47:57,498 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 133 transitions. [2023-12-02 14:47:57,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 14:47:57,498 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 133 transitions. [2023-12-02 14:47:57,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-02 14:47:57,501 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:47:57,501 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:47:57,503 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-02 14:47:57,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-02 14:47:57,904 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-02 14:47:58,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 14:47:58,103 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:47:58,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:47:58,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1940362940, now seen corresponding path program 1 times [2023-12-02 14:47:58,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 14:47:58,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [260005183] [2023-12-02 14:47:58,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:47:58,104 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 [2023-12-02 14:47:58,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 14:47:58,104 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 14:47:58,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-02 14:47:58,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:47:58,180 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 14:47:58,184 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:48:01,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 728 proven. 195 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2023-12-02 14:48:01,298 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:48:02,954 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1124 trivial. 0 not checked. [2023-12-02 14:48:02,954 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 14:48:02,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [260005183] [2023-12-02 14:48:02,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [260005183] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-02 14:48:02,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 14:48:02,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [17] total 21 [2023-12-02 14:48:02,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980623746] [2023-12-02 14:48:02,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:48:02,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 14:48:02,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 14:48:02,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 14:48:02,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2023-12-02 14:48:02,956 INFO L87 Difference]: Start difference. First operand 98 states and 133 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-02 14:48:04,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:48:04,177 INFO L93 Difference]: Finished difference Result 101 states and 136 transitions. [2023-12-02 14:48:04,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 14:48:04,177 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 147 [2023-12-02 14:48:04,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:48:04,178 INFO L225 Difference]: With dead ends: 101 [2023-12-02 14:48:04,178 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 14:48:04,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 272 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=98, Invalid=454, Unknown=0, NotChecked=0, Total=552 [2023-12-02 14:48:04,180 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 8 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-02 14:48:04,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 156 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-02 14:48:04,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 14:48:04,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 14:48:04,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 14:48:04,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 14:48:04,181 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 147 [2023-12-02 14:48:04,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:48:04,182 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 14:48:04,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-02 14:48:04,182 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 14:48:04,182 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 14:48:04,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 14:48:04,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-02 14:48:04,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 14:48:04,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 14:48:05,559 INFO L899 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2023-12-02 14:48:05,560 INFO L902 garLoopResultBuilder]: At program point L52(line 52) the Hoare annotation is: true [2023-12-02 14:48:05,560 INFO L902 garLoopResultBuilder]: At program point L52-1(line 52) the Hoare annotation is: true [2023-12-02 14:48:05,560 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-02 14:48:05,560 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-02 14:48:05,560 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-02 14:48:05,560 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2023-12-02 14:48:05,560 INFO L899 garLoopResultBuilder]: For program point L32(lines 32 40) no Hoare annotation was computed. [2023-12-02 14:48:05,560 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-02 14:48:05,560 INFO L899 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2023-12-02 14:48:05,561 INFO L902 garLoopResultBuilder]: At program point L49(line 49) the Hoare annotation is: true [2023-12-02 14:48:05,561 INFO L902 garLoopResultBuilder]: At program point L49-1(line 49) the Hoare annotation is: true [2023-12-02 14:48:05,561 INFO L899 garLoopResultBuilder]: For program point L37(lines 37 39) no Hoare annotation was computed. [2023-12-02 14:48:05,561 INFO L895 garLoopResultBuilder]: At program point L70-2(lines 70 76) the Hoare annotation is: (let ((.cse4 ((_ sign_extend 24) ~var_1_5~0)) (.cse1 ((_ sign_extend 24) ~var_1_1~0))) (or (let ((.cse3 (bvadd ((_ sign_extend 24) ~var_1_6~0) .cse4)) (.cse0 ((_ sign_extend 24) ~var_1_7~0))) (let ((.cse2 (bvslt .cse3 .cse0))) (and (or (= ((_ sign_extend 24) ((_ extract 7 0) .cse0)) .cse1) .cse2) (or (= ((_ sign_extend 24) ((_ extract 7 0) .cse3)) .cse1) (not .cse2))))) (and (= ~var_1_2~0 (_ bv0 8)) (= ~var_1_3~0 (_ bv0 8))) (= ~var_1_4~0 (_ bv0 8)) (bvsgt .cse4 (bvxor (bvadd (_ bv4294967196 32) .cse1) .cse1)))) [2023-12-02 14:48:05,561 INFO L899 garLoopResultBuilder]: For program point L70-3(lines 70 76) no Hoare annotation was computed. [2023-12-02 14:48:05,561 INFO L899 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2023-12-02 14:48:05,561 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 14:48:05,561 INFO L899 garLoopResultBuilder]: For program point L33-2(lines 33 35) no Hoare annotation was computed. [2023-12-02 14:48:05,562 INFO L902 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2023-12-02 14:48:05,562 INFO L902 garLoopResultBuilder]: At program point L58-1(line 58) the Hoare annotation is: true [2023-12-02 14:48:05,562 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2023-12-02 14:48:05,562 INFO L902 garLoopResultBuilder]: At program point L46(line 46) the Hoare annotation is: true [2023-12-02 14:48:05,562 INFO L902 garLoopResultBuilder]: At program point L46-1(line 46) the Hoare annotation is: true [2023-12-02 14:48:05,562 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 14:48:05,562 INFO L899 garLoopResultBuilder]: For program point L59(lines 41 60) no Hoare annotation was computed. [2023-12-02 14:48:05,562 INFO L902 garLoopResultBuilder]: At program point L55(line 55) the Hoare annotation is: true [2023-12-02 14:48:05,562 INFO L902 garLoopResultBuilder]: At program point L55-1(line 55) the Hoare annotation is: true [2023-12-02 14:48:05,563 INFO L899 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2023-12-02 14:48:05,563 INFO L902 garLoopResultBuilder]: At program point L43(line 43) the Hoare annotation is: true [2023-12-02 14:48:05,563 INFO L902 garLoopResultBuilder]: At program point L43-1(line 43) the Hoare annotation is: true [2023-12-02 14:48:05,563 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-02 14:48:05,563 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-12-02 14:48:05,563 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-12-02 14:48:05,563 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-02 14:48:05,566 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-02 14:48:05,568 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 14:48:05,577 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:48:05 BoogieIcfgContainer [2023-12-02 14:48:05,577 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 14:48:05,578 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 14:48:05,578 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 14:48:05,578 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 14:48:05,579 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:47:48" (3/4) ... [2023-12-02 14:48:05,581 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 14:48:05,584 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-12-02 14:48:05,589 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-12-02 14:48:05,589 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-12-02 14:48:05,590 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 14:48:05,590 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 14:48:05,669 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 14:48:05,670 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 14:48:05,670 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 14:48:05,671 INFO L158 Benchmark]: Toolchain (without parser) took 17870.80ms. Allocated memory was 86.0MB in the beginning and 182.5MB in the end (delta: 96.5MB). Free memory was 62.3MB in the beginning and 126.3MB in the end (delta: -64.1MB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB. [2023-12-02 14:48:05,672 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 65.0MB. Free memory was 40.9MB in the beginning and 40.8MB in the end (delta: 40.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 14:48:05,672 INFO L158 Benchmark]: CACSL2BoogieTranslator took 231.21ms. Allocated memory is still 86.0MB. Free memory was 62.0MB in the beginning and 50.2MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 14:48:05,672 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.46ms. Allocated memory is still 86.0MB. Free memory was 50.2MB in the beginning and 48.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 14:48:05,673 INFO L158 Benchmark]: Boogie Preprocessor took 30.44ms. Allocated memory is still 86.0MB. Free memory was 48.5MB in the beginning and 46.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 14:48:05,673 INFO L158 Benchmark]: RCFGBuilder took 355.31ms. Allocated memory is still 86.0MB. Free memory was 46.7MB in the beginning and 52.0MB in the end (delta: -5.3MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2023-12-02 14:48:05,674 INFO L158 Benchmark]: TraceAbstraction took 17116.56ms. Allocated memory was 86.0MB in the beginning and 182.5MB in the end (delta: 96.5MB). Free memory was 51.6MB in the beginning and 131.6MB in the end (delta: -79.9MB). Peak memory consumption was 97.1MB. Max. memory is 16.1GB. [2023-12-02 14:48:05,674 INFO L158 Benchmark]: Witness Printer took 93.06ms. Allocated memory is still 182.5MB. Free memory was 131.6MB in the beginning and 126.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 14:48:05,676 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 65.0MB. Free memory was 40.9MB in the beginning and 40.8MB in the end (delta: 40.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 231.21ms. Allocated memory is still 86.0MB. Free memory was 62.0MB in the beginning and 50.2MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.46ms. Allocated memory is still 86.0MB. Free memory was 50.2MB in the beginning and 48.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.44ms. Allocated memory is still 86.0MB. Free memory was 48.5MB in the beginning and 46.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 355.31ms. Allocated memory is still 86.0MB. Free memory was 46.7MB in the beginning and 52.0MB in the end (delta: -5.3MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. * TraceAbstraction took 17116.56ms. Allocated memory was 86.0MB in the beginning and 182.5MB in the end (delta: 96.5MB). Free memory was 51.6MB in the beginning and 131.6MB in the end (delta: -79.9MB). Peak memory consumption was 97.1MB. Max. memory is 16.1GB. * Witness Printer took 93.06ms. Allocated memory is still 182.5MB. Free memory was 131.6MB in the beginning and 126.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. 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 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17.1s, OverallIterations: 6, TraceHistogramMax: 24, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 161 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 155 mSDsluCounter, 724 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 450 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 348 IncrementalHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 274 mSDtfsCounter, 348 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 994 GetRequests, 933 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred 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, 57 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 79 PreInvPairs, 120 NumberOfFragments, 71 HoareAnnotationTreeSize, 79 FomulaSimplifications, 5958 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 14 FomulaSimplificationsInter, 3866 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 10.4s InterpolantComputationTime, 665 NumberOfCodeBlocks, 665 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 876 ConstructedInterpolants, 80 QuantifiedInterpolants, 4704 SizeOfPredicates, 77 NumberOfNonLiveVariables, 1088 ConjunctsInSsa, 68 ConjunctsInUnsatCore, 10 InterpolantComputations, 5 PerfectInterpolantSequences, 4104/4368 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: (((((((var_1_7 & 127) == var_1_1) || (((var_1_6 + var_1_5) % 4294967296) < var_1_7)) && (((((var_1_6 + var_1_5) % 4294967296) & 127) == var_1_1) || !((((var_1_6 + var_1_5) % 4294967296) < var_1_7)))) || ((var_1_2 == 0) && (var_1_3 == 0))) || (var_1_4 == 0)) || (var_1_5 > (((-100 + var_1_1) % 4294967296) ^ var_1_1))) RESULT: Ultimate proved your program to be correct! [2023-12-02 14:48:05,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c28c0cb-74b0-43fe-ac69-e99618406091/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE