./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-79.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/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_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-79.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/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_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/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 af3efeeaacc64cb7477cce5de730b96d7cb2077214786b6ce63a98322017b054 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 12:43:47,489 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 12:43:47,550 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 12:43:47,554 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 12:43:47,555 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 12:43:47,579 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 12:43:47,580 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 12:43:47,581 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 12:43:47,581 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 12:43:47,582 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 12:43:47,582 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 12:43:47,583 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 12:43:47,583 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 12:43:47,584 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 12:43:47,584 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 12:43:47,585 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 12:43:47,585 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 12:43:47,586 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 12:43:47,586 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 12:43:47,587 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 12:43:47,587 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 12:43:47,591 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 12:43:47,591 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 12:43:47,592 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 12:43:47,592 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 12:43:47,593 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 12:43:47,593 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 12:43:47,593 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 12:43:47,594 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 12:43:47,594 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 12:43:47,594 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 12:43:47,595 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 12:43:47,595 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 12:43:47,595 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 12:43:47,596 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 12:43:47,596 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 12:43:47,596 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 12:43:47,596 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:43:47,596 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 12:43:47,597 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 12:43:47,597 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 12:43:47,597 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 12:43:47,597 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 12:43:47,598 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 12:43:47,598 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 12:43:47,598 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 12:43:47,598 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 12:43:47,598 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_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af3efeeaacc64cb7477cce5de730b96d7cb2077214786b6ce63a98322017b054 [2023-12-02 12:43:47,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 12:43:47,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 12:43:47,853 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 12:43:47,854 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 12:43:47,854 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 12:43:47,855 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-79.i [2023-12-02 12:43:50,659 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 12:43:50,827 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 12:43:50,827 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-79.i [2023-12-02 12:43:50,835 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/bin/utaipan-verify-nQ1chXbOIh/data/51f773c3d/58181f5a00df46e5b95882322a36dd6c/FLAG423e430bb [2023-12-02 12:43:50,846 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/bin/utaipan-verify-nQ1chXbOIh/data/51f773c3d/58181f5a00df46e5b95882322a36dd6c [2023-12-02 12:43:50,848 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 12:43:50,849 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 12:43:50,850 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 12:43:50,850 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 12:43:50,855 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 12:43:50,856 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:43:50" (1/1) ... [2023-12-02 12:43:50,857 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@165b6bd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:50, skipping insertion in model container [2023-12-02 12:43:50,858 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:43:50" (1/1) ... [2023-12-02 12:43:50,884 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 12:43:51,028 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_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-79.i[917,930] [2023-12-02 12:43:51,064 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:43:51,076 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 12:43:51,089 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_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-79.i[917,930] [2023-12-02 12:43:51,107 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:43:51,124 INFO L206 MainTranslator]: Completed translation [2023-12-02 12:43:51,125 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:51 WrapperNode [2023-12-02 12:43:51,125 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 12:43:51,126 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 12:43:51,126 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 12:43:51,127 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 12:43:51,134 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:51" (1/1) ... [2023-12-02 12:43:51,143 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:51" (1/1) ... [2023-12-02 12:43:51,171 INFO L138 Inliner]: procedures = 26, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 111 [2023-12-02 12:43:51,171 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 12:43:51,172 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 12:43:51,172 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 12:43:51,172 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 12:43:51,182 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:51" (1/1) ... [2023-12-02 12:43:51,182 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:51" (1/1) ... [2023-12-02 12:43:51,185 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:51" (1/1) ... [2023-12-02 12:43:51,186 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:51" (1/1) ... [2023-12-02 12:43:51,192 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:51" (1/1) ... [2023-12-02 12:43:51,197 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:51" (1/1) ... [2023-12-02 12:43:51,199 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:51" (1/1) ... [2023-12-02 12:43:51,201 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:51" (1/1) ... [2023-12-02 12:43:51,204 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 12:43:51,205 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 12:43:51,205 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 12:43:51,205 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 12:43:51,206 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:51" (1/1) ... [2023-12-02 12:43:51,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:43:51,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:43:51,236 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 12:43:51,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 12:43:51,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 12:43:51,266 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 12:43:51,266 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 12:43:51,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 12:43:51,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 12:43:51,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 12:43:51,333 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 12:43:51,335 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 12:43:51,535 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 12:43:51,691 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 12:43:51,691 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 12:43:51,693 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:43:51 BoogieIcfgContainer [2023-12-02 12:43:51,693 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 12:43:51,696 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 12:43:51,696 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 12:43:51,699 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 12:43:51,699 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:43:50" (1/3) ... [2023-12-02 12:43:51,700 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79c00daa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:43:51, skipping insertion in model container [2023-12-02 12:43:51,700 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:51" (2/3) ... [2023-12-02 12:43:51,700 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79c00daa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:43:51, skipping insertion in model container [2023-12-02 12:43:51,701 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:43:51" (3/3) ... [2023-12-02 12:43:51,702 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-79.i [2023-12-02 12:43:51,741 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 12:43:51,741 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 12:43:51,794 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 12:43:51,800 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;@45bda0bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 12:43:51,800 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 12:43:51,804 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-02 12:43:51,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-02 12:43:51,812 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:43:51,813 INFO L195 NwaCegarLoop]: trace histogram [11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:43:51,813 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:43:51,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:43:51,818 INFO L85 PathProgramCache]: Analyzing trace with hash -298228617, now seen corresponding path program 1 times [2023-12-02 12:43:51,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:43:51,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122835701] [2023-12-02 12:43:51,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:43:51,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:43:51,961 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 12:43:51,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1978988998] [2023-12-02 12:43:51,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:43:51,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 12:43:51,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:43:51,966 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 12:43:51,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 12:43:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 12:43:52,112 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 12:43:52,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 12:43:52,210 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 12:43:52,212 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 12:43:52,214 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 12:43:52,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 12:43:52,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-02 12:43:52,420 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 12:43:52,423 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 12:43:52,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:43:52 BoogieIcfgContainer [2023-12-02 12:43:52,465 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 12:43:52,465 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 12:43:52,466 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 12:43:52,466 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 12:43:52,466 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:43:51" (3/4) ... [2023-12-02 12:43:52,468 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 12:43:52,470 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 12:43:52,471 INFO L158 Benchmark]: Toolchain (without parser) took 1621.34ms. Allocated memory was 140.5MB in the beginning and 199.2MB in the end (delta: 58.7MB). Free memory was 98.1MB in the beginning and 144.3MB in the end (delta: -46.2MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2023-12-02 12:43:52,472 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 140.5MB. Free memory was 112.3MB in the beginning and 112.3MB in the end (delta: 28.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 12:43:52,472 INFO L158 Benchmark]: CACSL2BoogieTranslator took 275.22ms. Allocated memory is still 140.5MB. Free memory was 97.6MB in the beginning and 86.0MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 12:43:52,473 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.27ms. Allocated memory is still 140.5MB. Free memory was 86.0MB in the beginning and 83.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 12:43:52,473 INFO L158 Benchmark]: Boogie Preprocessor took 32.28ms. Allocated memory is still 140.5MB. Free memory was 83.4MB in the beginning and 82.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 12:43:52,474 INFO L158 Benchmark]: RCFGBuilder took 488.17ms. Allocated memory is still 140.5MB. Free memory was 81.8MB in the beginning and 53.0MB in the end (delta: 28.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-12-02 12:43:52,475 INFO L158 Benchmark]: TraceAbstraction took 769.03ms. Allocated memory was 140.5MB in the beginning and 199.2MB in the end (delta: 58.7MB). Free memory was 52.4MB in the beginning and 145.4MB in the end (delta: -92.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 12:43:52,475 INFO L158 Benchmark]: Witness Printer took 4.38ms. Allocated memory is still 199.2MB. Free memory was 145.4MB in the beginning and 144.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 12:43:52,479 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 140.5MB. Free memory was 112.3MB in the beginning and 112.3MB in the end (delta: 28.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 275.22ms. Allocated memory is still 140.5MB. Free memory was 97.6MB in the beginning and 86.0MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.27ms. Allocated memory is still 140.5MB. Free memory was 86.0MB in the beginning and 83.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.28ms. Allocated memory is still 140.5MB. Free memory was 83.4MB in the beginning and 82.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 488.17ms. Allocated memory is still 140.5MB. Free memory was 81.8MB in the beginning and 53.0MB in the end (delta: 28.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 769.03ms. Allocated memory was 140.5MB in the beginning and 199.2MB in the end (delta: 58.7MB). Free memory was 52.4MB in the beginning and 145.4MB in the end (delta: -92.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.38ms. Allocated memory is still 199.2MB. Free memory was 145.4MB in the beginning and 144.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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 someBinaryDOUBLEComparisonOperation at line 39, overapproximation of someBinaryFLOATComparisonOperation at line 79, overapproximation of shiftRight at line 38. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = -16; [L23] signed char var_1_3 = 0; [L24] signed char var_1_4 = 64; [L25] signed char var_1_5 = 64; [L26] signed long int var_1_6 = -64; [L27] double var_1_8 = 32.5; [L28] double var_1_9 = 1.6; [L29] unsigned short int var_1_10 = 32; [L30] float var_1_11 = 15.5; [L31] unsigned char var_1_12 = 0; [L32] unsigned char var_1_13 = 0; [L33] unsigned short int last_1_var_1_10 = 32; [L92] isInitial = 1 [L93] FCALL initially() [L94] COND TRUE 1 [L95] CALL updateLastVariables() [L85] last_1_var_1_10 = var_1_10 [L95] RET updateLastVariables() [L96] CALL updateVariables() [L65] var_1_3 = __VERIFIER_nondet_char() [L66] CALL assume_abort_if_not(var_1_3 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=15, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_3 >= -63) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=15, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L67] CALL assume_abort_if_not(var_1_3 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=15, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_3 <= 63) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=15, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L68] var_1_4 = __VERIFIER_nondet_char() [L69] CALL assume_abort_if_not(var_1_4 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=15, var_1_4=-1, var_1_5=64, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_4 >= -1) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=15, var_1_4=-1, var_1_5=64, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L70] CALL assume_abort_if_not(var_1_4 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=15, var_1_4=-1, var_1_5=64, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_4 <= 126) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=15, var_1_4=-1, var_1_5=64, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L71] var_1_5 = __VERIFIER_nondet_char() [L72] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=15, var_1_4=-1, var_1_5=1, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=15, var_1_4=-1, var_1_5=1, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L73] CALL assume_abort_if_not(var_1_5 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=15, var_1_4=-1, var_1_5=1, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_5 <= 126) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=15, var_1_4=-1, var_1_5=1, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L74] var_1_8 = __VERIFIER_nondet_double() [L75] CALL assume_abort_if_not((var_1_8 >= -922337.2036854776000e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=15, var_1_4=-1, var_1_5=1, var_1_6=-64, var_1_9=8/5] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not((var_1_8 >= -922337.2036854776000e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=15, var_1_4=-1, var_1_5=1, var_1_6=-64, var_1_9=8/5] [L76] var_1_9 = __VERIFIER_nondet_double() [L77] CALL assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=15, var_1_4=-1, var_1_5=1, var_1_6=-64] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=15, var_1_4=-1, var_1_5=1, var_1_6=-64] [L78] var_1_11 = __VERIFIER_nondet_float() [L79] CALL assume_abort_if_not((var_1_11 >= -922337.2036854776000e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854776000e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=15, var_1_4=-1, var_1_5=1, var_1_6=-64] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not((var_1_11 >= -922337.2036854776000e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854776000e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=15, var_1_4=-1, var_1_5=1, var_1_6=-64] [L80] var_1_13 = __VERIFIER_nondet_uchar() [L81] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_12=0, var_1_1=-16, var_1_3=15, var_1_4=-1, var_1_5=1, var_1_6=-64] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_12=0, var_1_1=-16, var_1_3=15, var_1_4=-1, var_1_5=1, var_1_6=-64] [L82] CALL assume_abort_if_not(var_1_13 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=15, var_1_4=-1, var_1_5=1, var_1_6=-64] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_13 <= 0) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=15, var_1_4=-1, var_1_5=1, var_1_6=-64] [L96] RET updateVariables() [L97] CALL step() [L37] signed long int stepLocal_0 = (((var_1_5) > (last_1_var_1_10)) ? (var_1_5) : (last_1_var_1_10)); [L38] EXPR last_1_var_1_10 >> var_1_3 [L38] COND TRUE stepLocal_0 <= (var_1_4 * (last_1_var_1_10 >> var_1_3)) [L39] COND TRUE (- var_1_8) >= var_1_9 [L40] var_1_6 = var_1_4 [L47] signed long int stepLocal_1 = var_1_5 + var_1_6; [L48] COND TRUE var_1_11 < var_1_9 [L49] COND TRUE stepLocal_1 <= (~ (var_1_6 % -32)) [L50] var_1_10 = var_1_5 [L55] var_1_12 = var_1_13 [L56] COND TRUE ! var_1_12 [L57] COND TRUE ! var_1_12 [L58] var_1_1 = (var_1_3 + -32) [L97] RET step() [L98] CALL, EXPR property() [L88] EXPR ((! var_1_12) ? ((! var_1_12) ? (var_1_1 == ((signed char) (var_1_3 + -32))) : (var_1_1 == ((signed char) (var_1_4 - ((((var_1_5) < (16)) ? (var_1_5) : (16))))))) : 1) && ((((((var_1_5) > (last_1_var_1_10)) ? (var_1_5) : (last_1_var_1_10))) <= (var_1_4 * (last_1_var_1_10 >> var_1_3))) ? (((- var_1_8) >= var_1_9) ? (var_1_6 == ((signed long int) var_1_4)) : (var_1_6 == ((signed long int) var_1_5))) : (var_1_6 == ((signed long int) var_1_5))) [L88] EXPR last_1_var_1_10 >> var_1_3 [L88] EXPR ((! var_1_12) ? ((! var_1_12) ? (var_1_1 == ((signed char) (var_1_3 + -32))) : (var_1_1 == ((signed char) (var_1_4 - ((((var_1_5) < (16)) ? (var_1_5) : (16))))))) : 1) && ((((((var_1_5) > (last_1_var_1_10)) ? (var_1_5) : (last_1_var_1_10))) <= (var_1_4 * (last_1_var_1_10 >> var_1_3))) ? (((- var_1_8) >= var_1_9) ? (var_1_6 == ((signed long int) var_1_4)) : (var_1_6 == ((signed long int) var_1_5))) : (var_1_6 == ((signed long int) var_1_5))) [L88-L89] return ((((! var_1_12) ? ((! var_1_12) ? (var_1_1 == ((signed char) (var_1_3 + -32))) : (var_1_1 == ((signed char) (var_1_4 - ((((var_1_5) < (16)) ? (var_1_5) : (16))))))) : 1) && ((((((var_1_5) > (last_1_var_1_10)) ? (var_1_5) : (last_1_var_1_10))) <= (var_1_4 * (last_1_var_1_10 >> var_1_3))) ? (((- var_1_8) >= var_1_9) ? (var_1_6 == ((signed long int) var_1_4)) : (var_1_6 == ((signed long int) var_1_5))) : (var_1_6 == ((signed long int) var_1_5)))) && ((var_1_11 < var_1_9) ? (((var_1_5 + var_1_6) <= (~ (var_1_6 % -32))) ? (var_1_10 == ((unsigned short int) var_1_5)) : (var_1_10 == ((unsigned short int) var_1_5))) : 1)) && (var_1_12 == ((unsigned char) var_1_13)) ; [L98] RET, EXPR property() [L98] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=32, var_1_10=1, var_1_12=0, var_1_13=0, var_1_1=-17, var_1_3=15, var_1_4=-1, var_1_5=1, var_1_6=-1] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=32, var_1_10=1, var_1_12=0, var_1_13=0, var_1_1=-17, var_1_3=15, var_1_4=-1, var_1_5=1, var_1_6=-1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 11, 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, 44 NumberOfCodeBlocks, 44 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 12:43:52,498 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/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_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-79.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/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_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/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 af3efeeaacc64cb7477cce5de730b96d7cb2077214786b6ce63a98322017b054 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 12:43:54,467 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 12:43:54,542 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 12:43:54,547 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 12:43:54,548 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 12:43:54,576 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 12:43:54,576 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 12:43:54,577 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 12:43:54,578 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 12:43:54,578 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 12:43:54,579 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 12:43:54,579 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 12:43:54,580 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 12:43:54,580 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 12:43:54,581 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 12:43:54,581 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 12:43:54,582 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 12:43:54,582 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 12:43:54,583 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 12:43:54,583 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 12:43:54,584 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 12:43:54,584 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 12:43:54,585 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 12:43:54,585 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 12:43:54,585 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 12:43:54,586 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 12:43:54,586 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 12:43:54,586 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 12:43:54,587 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 12:43:54,587 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 12:43:54,587 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 12:43:54,588 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 12:43:54,588 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 12:43:54,588 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 12:43:54,588 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:43:54,589 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 12:43:54,589 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 12:43:54,589 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 12:43:54,589 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 12:43:54,589 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 12:43:54,590 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 12:43:54,590 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 12:43:54,590 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 12:43:54,590 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 12:43:54,590 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_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af3efeeaacc64cb7477cce5de730b96d7cb2077214786b6ce63a98322017b054 [2023-12-02 12:43:54,884 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 12:43:54,904 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 12:43:54,907 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 12:43:54,908 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 12:43:54,908 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 12:43:54,910 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-79.i [2023-12-02 12:43:57,621 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 12:43:57,829 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 12:43:57,830 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-79.i [2023-12-02 12:43:57,838 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/bin/utaipan-verify-nQ1chXbOIh/data/8c709f72d/2145212d83534d5fa3b1335a4001915e/FLAG7220b8fa1 [2023-12-02 12:43:57,851 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/bin/utaipan-verify-nQ1chXbOIh/data/8c709f72d/2145212d83534d5fa3b1335a4001915e [2023-12-02 12:43:57,854 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 12:43:57,856 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 12:43:57,857 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 12:43:57,857 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 12:43:57,862 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 12:43:57,863 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:43:57" (1/1) ... [2023-12-02 12:43:57,864 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c73aa7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:57, skipping insertion in model container [2023-12-02 12:43:57,864 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:43:57" (1/1) ... [2023-12-02 12:43:57,891 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 12:43:58,043 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_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-79.i[917,930] [2023-12-02 12:43:58,080 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:43:58,096 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 12:43:58,109 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_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-79.i[917,930] [2023-12-02 12:43:58,131 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:43:58,150 INFO L206 MainTranslator]: Completed translation [2023-12-02 12:43:58,151 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:58 WrapperNode [2023-12-02 12:43:58,151 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 12:43:58,152 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 12:43:58,152 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 12:43:58,152 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 12:43:58,160 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:58" (1/1) ... [2023-12-02 12:43:58,172 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:58" (1/1) ... [2023-12-02 12:43:58,198 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 95 [2023-12-02 12:43:58,198 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 12:43:58,199 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 12:43:58,200 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 12:43:58,200 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 12:43:58,210 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:58" (1/1) ... [2023-12-02 12:43:58,210 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:58" (1/1) ... [2023-12-02 12:43:58,215 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:58" (1/1) ... [2023-12-02 12:43:58,215 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:58" (1/1) ... [2023-12-02 12:43:58,237 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:58" (1/1) ... [2023-12-02 12:43:58,249 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:58" (1/1) ... [2023-12-02 12:43:58,251 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:58" (1/1) ... [2023-12-02 12:43:58,259 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:58" (1/1) ... [2023-12-02 12:43:58,277 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 12:43:58,278 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 12:43:58,278 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 12:43:58,278 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 12:43:58,279 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:58" (1/1) ... [2023-12-02 12:43:58,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:43:58,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:43:58,318 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 12:43:58,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 12:43:58,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 12:43:58,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 12:43:58,349 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 12:43:58,350 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 12:43:58,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 12:43:58,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 12:43:58,425 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 12:43:58,427 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 12:43:58,971 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 12:43:59,019 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 12:43:59,019 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 12:43:59,019 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:43:59 BoogieIcfgContainer [2023-12-02 12:43:59,020 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 12:43:59,022 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 12:43:59,022 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 12:43:59,025 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 12:43:59,025 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:43:57" (1/3) ... [2023-12-02 12:43:59,025 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39be599d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:43:59, skipping insertion in model container [2023-12-02 12:43:59,026 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:43:58" (2/3) ... [2023-12-02 12:43:59,026 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39be599d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:43:59, skipping insertion in model container [2023-12-02 12:43:59,026 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:43:59" (3/3) ... [2023-12-02 12:43:59,028 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-79.i [2023-12-02 12:43:59,042 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 12:43:59,043 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 12:43:59,095 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 12:43:59,103 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;@5e2ed891, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 12:43:59,103 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 12:43:59,107 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 25 states have (on average 1.44) internal successors, (36), 26 states have internal predecessors, (36), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-02 12:43:59,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-02 12:43:59,119 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:43:59,119 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:43:59,120 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:43:59,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:43:59,126 INFO L85 PathProgramCache]: Analyzing trace with hash -175552722, now seen corresponding path program 1 times [2023-12-02 12:43:59,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 12:43:59,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1779512039] [2023-12-02 12:43:59,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:43:59,141 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 12:43:59,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 12:43:59,143 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/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 12:43:59,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/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 12:43:59,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:43:59,293 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 12:43:59,300 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:43:59,332 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2023-12-02 12:43:59,332 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 12:43:59,333 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 12:43:59,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1779512039] [2023-12-02 12:43:59,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1779512039] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:43:59,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:43:59,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 12:43:59,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078508871] [2023-12-02 12:43:59,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:43:59,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 12:43:59,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 12:43:59,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 12:43:59,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 12:43:59,370 INFO L87 Difference]: Start difference. First operand has 39 states, 25 states have (on average 1.44) internal successors, (36), 26 states have internal predecessors, (36), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 12:43:59,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:43:59,500 INFO L93 Difference]: Finished difference Result 75 states and 125 transitions. [2023-12-02 12:43:59,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 12:43:59,507 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 72 [2023-12-02 12:43:59,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:43:59,514 INFO L225 Difference]: With dead ends: 75 [2023-12-02 12:43:59,514 INFO L226 Difference]: Without dead ends: 37 [2023-12-02 12:43:59,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 71 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 12:43:59,521 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 12:43:59,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 12:43:59,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-12-02 12:43:59,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2023-12-02 12:43:59,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 24 states have internal predecessors, (31), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-02 12:43:59,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 53 transitions. [2023-12-02 12:43:59,559 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 53 transitions. Word has length 72 [2023-12-02 12:43:59,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:43:59,559 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 53 transitions. [2023-12-02 12:43:59,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 12:43:59,560 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 53 transitions. [2023-12-02 12:43:59,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-02 12:43:59,564 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:43:59,564 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:43:59,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/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 12:43:59,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/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 12:43:59,767 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:43:59,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:43:59,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1376222668, now seen corresponding path program 1 times [2023-12-02 12:43:59,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 12:43:59,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1695045664] [2023-12-02 12:43:59,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:43:59,769 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 12:43:59,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 12:43:59,770 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/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 12:43:59,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/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 12:43:59,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:43:59,906 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 12:43:59,911 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:44:00,029 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-12-02 12:44:00,030 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 12:44:00,030 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 12:44:00,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1695045664] [2023-12-02 12:44:00,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1695045664] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:44:00,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:44:00,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 12:44:00,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941652665] [2023-12-02 12:44:00,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:44:00,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 12:44:00,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 12:44:00,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 12:44:00,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 12:44:00,034 INFO L87 Difference]: Start difference. First operand 37 states and 53 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, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-02 12:44:00,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:44:00,449 INFO L93 Difference]: Finished difference Result 79 states and 110 transitions. [2023-12-02 12:44:00,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 12:44:00,454 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, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 72 [2023-12-02 12:44:00,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:44:00,456 INFO L225 Difference]: With dead ends: 79 [2023-12-02 12:44:00,456 INFO L226 Difference]: Without dead ends: 43 [2023-12-02 12:44:00,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-12-02 12:44:00,459 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 63 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 12:44:00,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 74 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 12:44:00,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-12-02 12:44:00,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2023-12-02 12:44:00,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-02 12:44:00,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 54 transitions. [2023-12-02 12:44:00,471 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 54 transitions. Word has length 72 [2023-12-02 12:44:00,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:44:00,472 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 54 transitions. [2023-12-02 12:44:00,472 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, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-02 12:44:00,472 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 54 transitions. [2023-12-02 12:44:00,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-02 12:44:00,474 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:44:00,474 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:44:00,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/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 12:44:00,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/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 12:44:00,675 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:44:00,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:44:00,676 INFO L85 PathProgramCache]: Analyzing trace with hash 277611940, now seen corresponding path program 1 times [2023-12-02 12:44:00,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 12:44:00,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2026806963] [2023-12-02 12:44:00,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:44:00,677 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 12:44:00,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 12:44:00,678 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/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 12:44:00,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/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 12:44:00,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:44:00,780 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 12:44:00,786 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:45:55,176 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 114 proven. 18 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-12-02 12:45:55,176 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 12:48:10,288 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-12-02 12:48:10,288 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 12:48:10,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2026806963] [2023-12-02 12:48:10,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2026806963] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-02 12:48:10,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 12:48:10,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 19 [2023-12-02 12:48:10,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891267250] [2023-12-02 12:48:10,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:48:10,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 12:48:10,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 12:48:10,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 12:48:10,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=263, Unknown=1, NotChecked=0, Total=342 [2023-12-02 12:48:10,291 INFO L87 Difference]: Start difference. First operand 41 states and 54 transitions. Second operand has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-02 12:48:42,379 WARN L293 SmtUtils]: Spent 5.37s on a formula simplification. DAG size of input: 116 DAG size of output: 115 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 12:48:55,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:48:55,012 INFO L93 Difference]: Finished difference Result 53 states and 68 transitions. [2023-12-02 12:48:55,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 12:48:55,020 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 73 [2023-12-02 12:48:55,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:48:55,022 INFO L225 Difference]: With dead ends: 53 [2023-12-02 12:48:55,022 INFO L226 Difference]: Without dead ends: 51 [2023-12-02 12:48:55,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 59.4s TimeCoverageRelationStatistics Valid=120, Invalid=477, Unknown=3, NotChecked=0, Total=600 [2023-12-02 12:48:55,024 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 37 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2023-12-02 12:48:55,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 181 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 119 Invalid, 2 Unknown, 0 Unchecked, 11.6s Time] [2023-12-02 12:48:55,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-12-02 12:48:55,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 49. [2023-12-02 12:48:55,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 35 states have (on average 1.2) internal successors, (42), 35 states have internal predecessors, (42), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-02 12:48:55,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 64 transitions. [2023-12-02 12:48:55,032 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 64 transitions. Word has length 73 [2023-12-02 12:48:55,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:48:55,033 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 64 transitions. [2023-12-02 12:48:55,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-02 12:48:55,033 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 64 transitions. [2023-12-02 12:48:55,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-02 12:48:55,034 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:48:55,035 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:48:55,038 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/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 12:48:55,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/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 12:48:55,235 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:48:55,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:48:55,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1793910214, now seen corresponding path program 1 times [2023-12-02 12:48:55,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 12:48:55,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1685248651] [2023-12-02 12:48:55,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:48:55,237 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 12:48:55,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 12:48:55,238 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/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 12:48:55,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/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 12:48:55,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:48:55,322 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-02 12:48:55,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 12:49:48,849 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 114 proven. 18 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-12-02 12:49:48,849 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 12:52:06,509 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-12-02 12:52:06,510 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 12:52:06,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1685248651] [2023-12-02 12:52:06,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1685248651] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-02 12:52:06,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 12:52:06,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [13] total 21 [2023-12-02 12:52:06,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862418594] [2023-12-02 12:52:06,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:52:06,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 12:52:06,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 12:52:06,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 12:52:06,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2023-12-02 12:52:06,512 INFO L87 Difference]: Start difference. First operand 49 states and 64 transitions. Second operand has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-02 12:52:59,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:52:59,419 INFO L93 Difference]: Finished difference Result 52 states and 67 transitions. [2023-12-02 12:52:59,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 12:52:59,434 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 74 [2023-12-02 12:52:59,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:52:59,435 INFO L225 Difference]: With dead ends: 52 [2023-12-02 12:52:59,435 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 12:52:59,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 59.1s TimeCoverageRelationStatistics Valid=148, Invalid=601, Unknown=7, NotChecked=0, Total=756 [2023-12-02 12:52:59,438 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 32 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2023-12-02 12:52:59,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 199 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 163 Invalid, 1 Unknown, 0 Unchecked, 16.5s Time] [2023-12-02 12:52:59,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 12:52:59,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 12:52:59,440 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 12:52:59,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 12:52:59,440 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 74 [2023-12-02 12:52:59,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:52:59,440 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 12:52:59,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-02 12:52:59,441 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 12:52:59,441 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 12:52:59,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 12:52:59,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/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)] Ended with exit code 0 [2023-12-02 12:52:59,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/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 12:52:59,646 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 12:53:06,622 WARN L293 SmtUtils]: Spent 6.92s on a formula simplification. DAG size of input: 111 DAG size of output: 8 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-12-02 12:53:06,684 INFO L899 garLoopResultBuilder]: For program point L56(lines 56 62) no Hoare annotation was computed. [2023-12-02 12:53:06,684 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-02 12:53:06,684 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-02 12:53:06,684 INFO L895 garLoopResultBuilder]: At program point L81(line 81) the Hoare annotation is: (bvsle ((_ zero_extend 24) ~var_1_12~0) (_ bv0 32)) [2023-12-02 12:53:06,684 INFO L895 garLoopResultBuilder]: At program point L81-1(line 81) the Hoare annotation is: (bvsle ((_ zero_extend 24) ~var_1_12~0) (_ bv0 32)) [2023-12-02 12:53:06,684 INFO L899 garLoopResultBuilder]: For program point L48(lines 48 54) no Hoare annotation was computed. [2023-12-02 12:53:06,685 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-02 12:53:06,685 INFO L899 garLoopResultBuilder]: For program point L48-1(lines 48 54) no Hoare annotation was computed. [2023-12-02 12:53:06,685 INFO L895 garLoopResultBuilder]: At program point L77(line 77) the Hoare annotation is: (and (bvsle ((_ zero_extend 24) ~var_1_13~0) (_ bv0 32)) (bvsle ((_ zero_extend 24) ~var_1_12~0) (_ bv0 32))) [2023-12-02 12:53:06,685 INFO L899 garLoopResultBuilder]: For program point L77-1(line 77) no Hoare annotation was computed. [2023-12-02 12:53:06,685 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2023-12-02 12:53:06,685 INFO L895 garLoopResultBuilder]: At program point L69(line 69) the Hoare annotation is: (and (bvsle ((_ zero_extend 24) ~var_1_13~0) (_ bv0 32)) (bvsle ((_ zero_extend 24) ~var_1_12~0) (_ bv0 32))) [2023-12-02 12:53:06,686 INFO L895 garLoopResultBuilder]: At program point L69-1(line 69) the Hoare annotation is: (and (bvsle ((_ zero_extend 24) ~var_1_13~0) (_ bv0 32)) (bvsle ((_ zero_extend 24) ~var_1_12~0) (_ bv0 32))) [2023-12-02 12:53:06,686 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 63) no Hoare annotation was computed. [2023-12-02 12:53:06,686 INFO L895 garLoopResultBuilder]: At program point L94-2(lines 94 100) the Hoare annotation is: (and (bvsle ((_ zero_extend 24) ~var_1_13~0) (_ bv0 32)) (bvsle ((_ zero_extend 24) ~var_1_12~0) (_ bv0 32))) [2023-12-02 12:53:06,686 INFO L899 garLoopResultBuilder]: For program point L94-3(lines 94 100) no Hoare annotation was computed. [2023-12-02 12:53:06,686 INFO L899 garLoopResultBuilder]: For program point L57(lines 57 61) no Hoare annotation was computed. [2023-12-02 12:53:06,686 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-02 12:53:06,686 INFO L899 garLoopResultBuilder]: For program point L82(lines 64 83) no Hoare annotation was computed. [2023-12-02 12:53:06,687 INFO L899 garLoopResultBuilder]: For program point L49(lines 49 53) no Hoare annotation was computed. [2023-12-02 12:53:06,687 INFO L899 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2023-12-02 12:53:06,687 INFO L895 garLoopResultBuilder]: At program point L66(line 66) the Hoare annotation is: (and (bvsle ((_ zero_extend 24) ~var_1_13~0) (_ bv0 32)) (bvsle ((_ zero_extend 24) ~var_1_12~0) (_ bv0 32))) [2023-12-02 12:53:06,687 INFO L895 garLoopResultBuilder]: At program point L66-1(line 66) the Hoare annotation is: (and (bvsle ((_ zero_extend 24) ~var_1_13~0) (_ bv0 32)) (bvsle ((_ zero_extend 24) ~var_1_12~0) (_ bv0 32))) [2023-12-02 12:53:06,687 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 12:53:06,687 INFO L895 garLoopResultBuilder]: At program point L79(line 79) the Hoare annotation is: (and (bvsle ((_ zero_extend 24) ~var_1_13~0) (_ bv0 32)) (bvsle ((_ zero_extend 24) ~var_1_12~0) (_ bv0 32))) [2023-12-02 12:53:06,687 INFO L899 garLoopResultBuilder]: For program point L79-1(line 79) no Hoare annotation was computed. [2023-12-02 12:53:06,688 INFO L895 garLoopResultBuilder]: At program point L75(line 75) the Hoare annotation is: (and (bvsle ((_ zero_extend 24) ~var_1_13~0) (_ bv0 32)) (bvsle ((_ zero_extend 24) ~var_1_12~0) (_ bv0 32))) [2023-12-02 12:53:06,688 INFO L899 garLoopResultBuilder]: For program point L75-1(line 75) no Hoare annotation was computed. [2023-12-02 12:53:06,688 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 12:53:06,688 INFO L899 garLoopResultBuilder]: For program point L38(lines 38 46) no Hoare annotation was computed. [2023-12-02 12:53:06,688 INFO L899 garLoopResultBuilder]: For program point L38-1(lines 38 46) no Hoare annotation was computed. [2023-12-02 12:53:06,688 INFO L899 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2023-12-02 12:53:06,688 INFO L895 garLoopResultBuilder]: At program point L72(line 72) the Hoare annotation is: (and (bvsle ((_ zero_extend 24) ~var_1_13~0) (_ bv0 32)) (bvsle ((_ zero_extend 24) ~var_1_12~0) (_ bv0 32))) [2023-12-02 12:53:06,688 INFO L895 garLoopResultBuilder]: At program point L72-1(line 72) the Hoare annotation is: (and (bvsle ((_ zero_extend 24) ~var_1_13~0) (_ bv0 32)) (bvsle ((_ zero_extend 24) ~var_1_12~0) (_ bv0 32))) [2023-12-02 12:53:06,689 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 43) no Hoare annotation was computed. [2023-12-02 12:53:06,689 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-02 12:53:06,689 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-12-02 12:53:06,689 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-12-02 12:53:06,689 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-02 12:53:06,693 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-02 12:53:06,695 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 12:53:06,704 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:53:06 BoogieIcfgContainer [2023-12-02 12:53:06,704 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 12:53:06,705 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 12:53:06,705 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 12:53:06,705 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 12:53:06,706 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:43:59" (3/4) ... [2023-12-02 12:53:06,708 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 12:53:06,711 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-12-02 12:53:06,716 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-12-02 12:53:06,717 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-12-02 12:53:06,717 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 12:53:06,717 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 12:53:06,819 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 12:53:06,819 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 12:53:06,819 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 12:53:06,820 INFO L158 Benchmark]: Toolchain (without parser) took 548964.19ms. Allocated memory was 77.6MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 54.0MB in the beginning and 1.5GB in the end (delta: -1.5GB). Peak memory consumption was 958.7MB. Max. memory is 16.1GB. [2023-12-02 12:53:06,820 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 77.6MB. Free memory is still 53.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 12:53:06,820 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.29ms. Allocated memory is still 77.6MB. Free memory was 53.8MB in the beginning and 40.9MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 12:53:06,821 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.69ms. Allocated memory is still 77.6MB. Free memory was 40.9MB in the beginning and 39.0MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 12:53:06,821 INFO L158 Benchmark]: Boogie Preprocessor took 77.93ms. Allocated memory is still 77.6MB. Free memory was 39.0MB in the beginning and 56.9MB in the end (delta: -17.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-12-02 12:53:06,821 INFO L158 Benchmark]: RCFGBuilder took 741.81ms. Allocated memory is still 77.6MB. Free memory was 56.6MB in the beginning and 38.9MB in the end (delta: 17.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 12:53:06,822 INFO L158 Benchmark]: TraceAbstraction took 547682.40ms. Allocated memory was 77.6MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 38.3MB in the beginning and 593.5MB in the end (delta: -555.2MB). Peak memory consumption was 936.5MB. Max. memory is 16.1GB. [2023-12-02 12:53:06,822 INFO L158 Benchmark]: Witness Printer took 114.12ms. Allocated memory is still 1.6GB. Free memory was 593.5MB in the beginning and 1.5GB in the end (delta: -929.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-12-02 12:53:06,824 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 77.6MB. Free memory is still 53.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 294.29ms. Allocated memory is still 77.6MB. Free memory was 53.8MB in the beginning and 40.9MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.69ms. Allocated memory is still 77.6MB. Free memory was 40.9MB in the beginning and 39.0MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 77.93ms. Allocated memory is still 77.6MB. Free memory was 39.0MB in the beginning and 56.9MB in the end (delta: -17.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 741.81ms. Allocated memory is still 77.6MB. Free memory was 56.6MB in the beginning and 38.9MB in the end (delta: 17.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 547682.40ms. Allocated memory was 77.6MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 38.3MB in the beginning and 593.5MB in the end (delta: -555.2MB). Peak memory consumption was 936.5MB. Max. memory is 16.1GB. * Witness Printer took 114.12ms. Allocated memory is still 1.6GB. Free memory was 593.5MB in the beginning and 1.5GB in the end (delta: -929.6MB). Peak memory consumption was 6.3MB. 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, 39 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 547.6s, OverallIterations: 4, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 98.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 134 SdHoareTripleChecker+Valid, 28.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 132 mSDsluCounter, 504 SdHoareTripleChecker+Invalid, 27.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 341 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 367 IncrementalHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 163 mSDtfsCounter, 367 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 452 GetRequests, 393 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 118.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=3, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 45 PreInvPairs, 59 NumberOfFragments, 99 HoareAnnotationTreeSize, 45 FomulaSimplifications, 188 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 1214 FormulaSimplificationTreeSizeReductionInter, 7.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 440.9s InterpolantComputationTime, 291 NumberOfCodeBlocks, 291 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 432 ConstructedInterpolants, 8 QuantifiedInterpolants, 4768 SizeOfPredicates, 51 NumberOfNonLiveVariables, 497 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 1284/1320 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: 94]: Loop Invariant Derived loop invariant: ((var_1_13 <= 0) && (var_1_12 <= 0)) RESULT: Ultimate proved your program to be correct! [2023-12-02 12:53:07,035 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2023-12-02 12:53:07,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea0ca1bf-593e-45bd-baeb-2605a95a75d5/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE