./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-35.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-35.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ --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 0296c2c765da5a529e1bbaf319642b95a8aa6afdf63ae3123d19a38a95241bba --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:54:07,713 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:54:07,800 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:54:07,807 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:54:07,808 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:54:07,837 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:54:07,838 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:54:07,839 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:54:07,840 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:54:07,840 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:54:07,841 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:54:07,842 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:54:07,843 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:54:07,843 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:54:07,844 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:54:07,845 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:54:07,845 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:54:07,846 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:54:07,847 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:54:07,848 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:54:07,848 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:54:07,849 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:54:07,850 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:54:07,851 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:54:07,852 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:54:07,852 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:54:07,853 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:54:07,854 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:54:07,855 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:54:07,855 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:54:07,856 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:54:07,856 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:54:07,857 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:54:07,857 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:54:07,857 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:54:07,858 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:54:07,858 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:54:07,859 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:54:07,859 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:54:07,859 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:54:07,860 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:54:07,860 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:54:07,861 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:54:07,861 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:54:07,861 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:54:07,862 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_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0296c2c765da5a529e1bbaf319642b95a8aa6afdf63ae3123d19a38a95241bba [2023-11-19 04:54:08,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:54:08,214 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:54:08,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:54:08,218 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:54:08,222 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:54:08,225 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-35.i [2023-11-19 04:54:11,482 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:54:11,760 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:54:11,761 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-35.i [2023-11-19 04:54:11,778 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/data/1e3db8772/be2d16501fb54909ae0fd7f501d5ca43/FLAG7a6506b10 [2023-11-19 04:54:11,794 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/data/1e3db8772/be2d16501fb54909ae0fd7f501d5ca43 [2023-11-19 04:54:11,797 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:54:11,799 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:54:11,801 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:54:11,801 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:54:11,808 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:54:11,809 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:54:11" (1/1) ... [2023-11-19 04:54:11,810 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bb4dbc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:11, skipping insertion in model container [2023-11-19 04:54:11,811 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:54:11" (1/1) ... [2023-11-19 04:54:11,839 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:54:12,017 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_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-35.i[915,928] [2023-11-19 04:54:12,046 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:54:12,068 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:54:12,084 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_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-35.i[915,928] [2023-11-19 04:54:12,096 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:54:12,116 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:54:12,117 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:12 WrapperNode [2023-11-19 04:54:12,118 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:54:12,119 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:54:12,119 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:54:12,120 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:54:12,129 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:12" (1/1) ... [2023-11-19 04:54:12,139 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:12" (1/1) ... [2023-11-19 04:54:12,165 INFO L138 Inliner]: procedures = 26, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 62 [2023-11-19 04:54:12,166 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:54:12,167 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:54:12,167 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:54:12,167 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:54:12,179 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:12" (1/1) ... [2023-11-19 04:54:12,180 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:12" (1/1) ... [2023-11-19 04:54:12,193 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:12" (1/1) ... [2023-11-19 04:54:12,194 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:12" (1/1) ... [2023-11-19 04:54:12,199 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:12" (1/1) ... [2023-11-19 04:54:12,204 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:12" (1/1) ... [2023-11-19 04:54:12,205 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:12" (1/1) ... [2023-11-19 04:54:12,220 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:12" (1/1) ... [2023-11-19 04:54:12,223 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:54:12,225 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:54:12,225 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:54:12,225 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:54:12,226 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:12" (1/1) ... [2023-11-19 04:54:12,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:54:12,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:54:12,275 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:54:12,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:54:12,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:54:12,333 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:54:12,333 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:54:12,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:54:12,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:54:12,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:54:12,407 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:54:12,416 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:54:12,615 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:54:12,710 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:54:12,711 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:54:12,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:54:12 BoogieIcfgContainer [2023-11-19 04:54:12,719 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:54:12,723 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:54:12,723 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:54:12,727 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:54:12,728 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:54:11" (1/3) ... [2023-11-19 04:54:12,729 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57370d96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:54:12, skipping insertion in model container [2023-11-19 04:54:12,729 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:12" (2/3) ... [2023-11-19 04:54:12,730 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57370d96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:54:12, skipping insertion in model container [2023-11-19 04:54:12,730 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:54:12" (3/3) ... [2023-11-19 04:54:12,732 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-35.i [2023-11-19 04:54:12,757 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:54:12,758 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:54:12,850 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:54:12,861 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;@59488161, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:54:12,862 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:54:12,868 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-19 04:54:12,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-19 04:54:12,881 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:54:12,882 INFO L195 NwaCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:54:12,883 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:54:12,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:54:12,892 INFO L85 PathProgramCache]: Analyzing trace with hash -415994377, now seen corresponding path program 1 times [2023-11-19 04:54:12,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:54:12,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923496743] [2023-11-19 04:54:12,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:54:12,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:54:13,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:54:13,208 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:54:13,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:54:13,348 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 04:54:13,350 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:54:13,352 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 04:54:13,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:54:13,358 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 04:54:13,364 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:54:13,398 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:54:13 BoogieIcfgContainer [2023-11-19 04:54:13,398 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:54:13,399 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:54:13,399 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:54:13,399 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:54:13,400 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:54:12" (3/4) ... [2023-11-19 04:54:13,402 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:54:13,404 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:54:13,405 INFO L158 Benchmark]: Toolchain (without parser) took 1605.91ms. Allocated memory is still 188.7MB. Free memory was 147.7MB in the beginning and 97.7MB in the end (delta: 50.0MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2023-11-19 04:54:13,406 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 142.6MB. Free memory is still 82.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:54:13,407 INFO L158 Benchmark]: CACSL2BoogieTranslator took 317.01ms. Allocated memory is still 188.7MB. Free memory was 147.7MB in the beginning and 136.5MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 04:54:13,407 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.97ms. Allocated memory is still 188.7MB. Free memory was 136.5MB in the beginning and 135.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:54:13,411 INFO L158 Benchmark]: Boogie Preprocessor took 56.95ms. Allocated memory is still 188.7MB. Free memory was 135.0MB in the beginning and 133.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:54:13,412 INFO L158 Benchmark]: RCFGBuilder took 494.90ms. Allocated memory is still 188.7MB. Free memory was 133.8MB in the beginning and 118.2MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 04:54:13,413 INFO L158 Benchmark]: TraceAbstraction took 675.43ms. Allocated memory is still 188.7MB. Free memory was 117.6MB in the beginning and 98.2MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 04:54:13,415 INFO L158 Benchmark]: Witness Printer took 5.34ms. Allocated memory is still 188.7MB. Free memory was 98.2MB in the beginning and 97.7MB in the end (delta: 542.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:54:13,419 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 142.6MB. Free memory is still 82.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 317.01ms. Allocated memory is still 188.7MB. Free memory was 147.7MB in the beginning and 136.5MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.97ms. Allocated memory is still 188.7MB. Free memory was 136.5MB in the beginning and 135.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 56.95ms. Allocated memory is still 188.7MB. Free memory was 135.0MB in the beginning and 133.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 494.90ms. Allocated memory is still 188.7MB. Free memory was 133.8MB in the beginning and 118.2MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 675.43ms. Allocated memory is still 188.7MB. Free memory was 117.6MB in the beginning and 98.2MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 5.34ms. Allocated memory is still 188.7MB. Free memory was 98.2MB in the beginning and 97.7MB in the end (delta: 542.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 53. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = -2; [L23] signed char var_1_2 = 32; [L24] signed char var_1_3 = 2; [L25] signed char var_1_4 = 10; [L26] double var_1_5 = 4.4; [L57] isInitial = 1 [L58] FCALL initially() [L59] COND TRUE 1 [L60] FCALL updateLastVariables() [L61] CALL updateVariables() [L40] var_1_2 = __VERIFIER_nondet_char() [L41] CALL assume_abort_if_not(var_1_2 >= -128) VAL [\old(cond)=1, isInitial=1, var_1_1=-2, var_1_2=4, var_1_3=2, var_1_4=10, var_1_5=22/5] [L20] COND FALSE !(!cond) [L41] RET assume_abort_if_not(var_1_2 >= -128) VAL [isInitial=1, var_1_1=-2, var_1_2=4, var_1_3=2, var_1_4=10, var_1_5=22/5] [L42] CALL assume_abort_if_not(var_1_2 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_1=-2, var_1_2=4, var_1_3=2, var_1_4=10, var_1_5=22/5] [L20] COND FALSE !(!cond) [L42] RET assume_abort_if_not(var_1_2 <= 127) VAL [isInitial=1, var_1_1=-2, var_1_2=4, var_1_3=2, var_1_4=10, var_1_5=22/5] [L43] var_1_3 = __VERIFIER_nondet_char() [L44] CALL assume_abort_if_not(var_1_3 >= -128) VAL [\old(cond)=1, isInitial=1, var_1_1=-2, var_1_2=4, var_1_3=4, var_1_4=10, var_1_5=22/5] [L20] COND FALSE !(!cond) [L44] RET assume_abort_if_not(var_1_3 >= -128) VAL [isInitial=1, var_1_1=-2, var_1_2=4, var_1_3=4, var_1_4=10, var_1_5=22/5] [L45] CALL assume_abort_if_not(var_1_3 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_1=-2, var_1_2=4, var_1_3=4, var_1_4=10, var_1_5=22/5] [L20] COND FALSE !(!cond) [L45] RET assume_abort_if_not(var_1_3 <= 127) VAL [isInitial=1, var_1_1=-2, var_1_2=4, var_1_3=4, var_1_4=10, var_1_5=22/5] [L46] var_1_4 = __VERIFIER_nondet_char() [L47] CALL assume_abort_if_not(var_1_4 >= -128) VAL [\old(cond)=1, isInitial=1, var_1_1=-2, var_1_2=4, var_1_3=4, var_1_4=-6, var_1_5=22/5] [L20] COND FALSE !(!cond) [L47] RET assume_abort_if_not(var_1_4 >= -128) VAL [isInitial=1, var_1_1=-2, var_1_2=4, var_1_3=4, var_1_4=-6, var_1_5=22/5] [L48] CALL assume_abort_if_not(var_1_4 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_1=-2, var_1_2=4, var_1_3=4, var_1_4=-6, var_1_5=22/5] [L20] COND FALSE !(!cond) [L48] RET assume_abort_if_not(var_1_4 <= 127) VAL [isInitial=1, var_1_1=-2, var_1_2=4, var_1_3=4, var_1_4=-6, var_1_5=22/5] [L61] RET updateVariables() [L62] CALL step() [L30] COND FALSE !(var_1_2 != var_1_3) [L33] COND FALSE !(var_1_3 <= ((((var_1_2) < (var_1_4)) ? (var_1_2) : (var_1_4)))) [L37] var_1_5 = 9999.5 [L62] RET step() [L63] CALL, EXPR property() [L53-L54] return ((var_1_2 != var_1_3) ? (var_1_1 == ((signed short int) ((((var_1_2) < 0 ) ? -(var_1_2) : (var_1_2))))) : ((var_1_3 <= ((((var_1_2) < (var_1_4)) ? (var_1_2) : (var_1_4)))) ? (var_1_1 == ((signed short int) (var_1_3 + var_1_4))) : 1)) && (var_1_5 == ((double) 9999.5)) ; [L63] RET, EXPR property() [L63] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_1=-2, var_1_2=4, var_1_3=4, var_1_4=-6, var_1_5=19999/2] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_1=-2, var_1_2=4, var_1_3=4, var_1_4=-6, var_1_5=19999/2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 6, 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=18occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 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 [2023-11-19 04:54:13,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/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_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-35.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ --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 0296c2c765da5a529e1bbaf319642b95a8aa6afdf63ae3123d19a38a95241bba --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:54:16,289 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:54:16,432 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 04:54:16,440 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:54:16,441 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:54:16,484 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:54:16,485 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:54:16,486 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:54:16,487 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:54:16,492 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:54:16,493 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:54:16,493 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:54:16,494 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:54:16,496 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:54:16,496 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:54:16,497 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:54:16,498 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:54:16,499 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:54:16,499 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:54:16,500 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:54:16,501 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:54:16,501 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:54:16,502 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:54:16,502 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:54:16,503 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:54:16,503 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:54:16,504 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:54:16,504 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:54:16,505 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:54:16,505 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:54:16,507 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:54:16,507 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:54:16,507 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:54:16,508 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:54:16,508 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:54:16,508 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:54:16,509 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:54:16,509 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:54:16,509 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:54:16,510 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:54:16,511 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:54:16,511 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:54:16,511 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_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0296c2c765da5a529e1bbaf319642b95a8aa6afdf63ae3123d19a38a95241bba [2023-11-19 04:54:16,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:54:16,983 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:54:16,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:54:16,987 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:54:16,990 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:54:16,991 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-35.i [2023-11-19 04:54:20,449 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:54:20,721 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:54:20,722 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-35.i [2023-11-19 04:54:20,730 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/data/006949ed8/4c058c06489c4fe38a5f28c043426d9b/FLAG531cb3753 [2023-11-19 04:54:20,751 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/data/006949ed8/4c058c06489c4fe38a5f28c043426d9b [2023-11-19 04:54:20,757 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:54:20,758 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:54:20,762 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:54:20,762 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:54:20,767 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:54:20,768 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:54:20" (1/1) ... [2023-11-19 04:54:20,769 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56430dee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:20, skipping insertion in model container [2023-11-19 04:54:20,769 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:54:20" (1/1) ... [2023-11-19 04:54:20,795 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:54:20,989 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_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-35.i[915,928] [2023-11-19 04:54:21,035 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:54:21,050 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:54:21,076 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_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-35.i[915,928] [2023-11-19 04:54:21,086 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:54:21,107 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:54:21,107 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:21 WrapperNode [2023-11-19 04:54:21,107 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:54:21,108 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:54:21,109 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:54:21,109 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:54:21,116 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:21" (1/1) ... [2023-11-19 04:54:21,128 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:21" (1/1) ... [2023-11-19 04:54:21,161 INFO L138 Inliner]: procedures = 27, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 59 [2023-11-19 04:54:21,162 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:54:21,163 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:54:21,163 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:54:21,164 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:54:21,181 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:21" (1/1) ... [2023-11-19 04:54:21,182 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:21" (1/1) ... [2023-11-19 04:54:21,188 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:21" (1/1) ... [2023-11-19 04:54:21,188 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:21" (1/1) ... [2023-11-19 04:54:21,196 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:21" (1/1) ... [2023-11-19 04:54:21,199 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:21" (1/1) ... [2023-11-19 04:54:21,202 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:21" (1/1) ... [2023-11-19 04:54:21,203 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:21" (1/1) ... [2023-11-19 04:54:21,207 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:54:21,208 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:54:21,208 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:54:21,208 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:54:21,209 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:21" (1/1) ... [2023-11-19 04:54:21,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:54:21,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:54:21,245 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:54:21,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:54:21,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:54:21,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:54:21,283 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:54:21,283 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:54:21,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:54:21,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:54:21,360 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:54:21,363 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:54:21,534 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:54:21,542 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:54:21,542 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:54:21,546 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:54:21 BoogieIcfgContainer [2023-11-19 04:54:21,546 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:54:21,549 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:54:21,549 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:54:21,552 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:54:21,553 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:54:20" (1/3) ... [2023-11-19 04:54:21,554 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@370f342b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:54:21, skipping insertion in model container [2023-11-19 04:54:21,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:21" (2/3) ... [2023-11-19 04:54:21,556 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@370f342b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:54:21, skipping insertion in model container [2023-11-19 04:54:21,556 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:54:21" (3/3) ... [2023-11-19 04:54:21,557 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-35.i [2023-11-19 04:54:21,579 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:54:21,580 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:54:21,649 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:54:21,656 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;@1cd0c2d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:54:21,657 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:54:21,661 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 23 states have internal predecessors, (29), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-19 04:54:21,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-19 04:54:21,672 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:54:21,674 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:54:21,674 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:54:21,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:54:21,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1367758180, now seen corresponding path program 1 times [2023-11-19 04:54:21,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:54:21,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1611633988] [2023-11-19 04:54:21,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:54:21,701 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 [2023-11-19 04:54:21,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:54:21,706 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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) [2023-11-19 04:54:21,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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 [2023-11-19 04:54:21,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:54:21,880 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 04:54:21,890 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:54:28,308 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-19 04:54:28,308 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:54:28,309 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:54:28,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1611633988] [2023-11-19 04:54:28,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1611633988] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:54:28,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:54:28,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 04:54:28,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583639350] [2023-11-19 04:54:28,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:54:28,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 04:54:28,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:54:28,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 04:54:28,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 04:54:28,352 INFO L87 Difference]: Start difference. First operand has 31 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 23 states have internal predecessors, (29), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-19 04:54:28,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:54:28,697 INFO L93 Difference]: Finished difference Result 77 states and 121 transitions. [2023-11-19 04:54:28,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 04:54:28,701 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 44 [2023-11-19 04:54:28,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:54:28,711 INFO L225 Difference]: With dead ends: 77 [2023-11-19 04:54:28,712 INFO L226 Difference]: Without dead ends: 49 [2023-11-19 04:54:28,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-19 04:54:28,722 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 20 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:54:28,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 206 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 04:54:28,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-11-19 04:54:28,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 31. [2023-11-19 04:54:28,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 23 states have internal predecessors, (26), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-19 04:54:28,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2023-11-19 04:54:28,784 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 44 [2023-11-19 04:54:28,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:54:28,785 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2023-11-19 04:54:28,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-19 04:54:28,786 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2023-11-19 04:54:28,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-19 04:54:28,789 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:54:28,790 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:54:28,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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 [2023-11-19 04:54:29,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:54:29,000 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:54:29,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:54:29,001 INFO L85 PathProgramCache]: Analyzing trace with hash -2087216681, now seen corresponding path program 1 times [2023-11-19 04:54:29,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:54:29,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [928365932] [2023-11-19 04:54:29,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:54:29,003 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 [2023-11-19 04:54:29,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:54:29,005 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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) [2023-11-19 04:54:29,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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 [2023-11-19 04:54:29,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:54:29,091 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 04:54:29,095 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:54:33,196 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-19 04:54:33,197 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:54:33,197 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:54:33,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [928365932] [2023-11-19 04:54:33,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [928365932] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:54:33,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:54:33,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 04:54:33,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934048552] [2023-11-19 04:54:33,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:54:33,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 04:54:33,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:54:33,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 04:54:33,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-19 04:54:33,210 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-19 04:54:33,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:54:33,618 INFO L93 Difference]: Finished difference Result 60 states and 75 transitions. [2023-11-19 04:54:33,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 04:54:33,619 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 45 [2023-11-19 04:54:33,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:54:33,621 INFO L225 Difference]: With dead ends: 60 [2023-11-19 04:54:33,622 INFO L226 Difference]: Without dead ends: 58 [2023-11-19 04:54:33,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-11-19 04:54:33,624 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 28 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 04:54:33,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 241 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 04:54:33,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-11-19 04:54:33,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 31. [2023-11-19 04:54:33,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 23 states have internal predecessors, (26), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-19 04:54:33,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2023-11-19 04:54:33,640 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 45 [2023-11-19 04:54:33,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:54:33,641 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2023-11-19 04:54:33,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-19 04:54:33,641 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2023-11-19 04:54:33,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-19 04:54:33,646 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:54:33,647 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:54:33,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-19 04:54:33,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:54:33,852 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:54:33,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:54:33,853 INFO L85 PathProgramCache]: Analyzing trace with hash -2029958379, now seen corresponding path program 1 times [2023-11-19 04:54:33,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:54:33,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1234310646] [2023-11-19 04:54:33,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:54:33,854 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 [2023-11-19 04:54:33,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:54:33,855 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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) [2023-11-19 04:54:33,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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 [2023-11-19 04:54:33,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:54:33,922 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 04:54:33,926 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:54:37,043 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-19 04:54:37,043 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:54:37,045 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:54:37,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1234310646] [2023-11-19 04:54:37,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1234310646] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:54:37,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:54:37,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 04:54:37,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055056490] [2023-11-19 04:54:37,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:54:37,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 04:54:37,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:54:37,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 04:54:37,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-19 04:54:37,056 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-19 04:54:37,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:54:37,329 INFO L93 Difference]: Finished difference Result 58 states and 73 transitions. [2023-11-19 04:54:37,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 04:54:37,330 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 45 [2023-11-19 04:54:37,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:54:37,331 INFO L225 Difference]: With dead ends: 58 [2023-11-19 04:54:37,331 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 04:54:37,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-11-19 04:54:37,334 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 31 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:54:37,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 217 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 04:54:37,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 04:54:37,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 04:54:37,336 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) [2023-11-19 04:54:37,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 04:54:37,336 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2023-11-19 04:54:37,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:54:37,336 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 04:54:37,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-19 04:54:37,337 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 04:54:37,337 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 04:54:37,341 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 04:54:37,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-19 04:54:37,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:54:37,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 04:54:37,563 INFO L899 garLoopResultBuilder]: For program point L27(lines 27 28) no Hoare annotation was computed. [2023-11-19 04:54:37,563 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-11-19 04:54:37,563 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-11-19 04:54:37,563 INFO L899 garLoopResultBuilder]: For program point L48(lines 39 49) no Hoare annotation was computed. [2023-11-19 04:54:37,564 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-11-19 04:54:37,564 INFO L902 garLoopResultBuilder]: At program point L44(line 44) the Hoare annotation is: true [2023-11-19 04:54:37,564 INFO L902 garLoopResultBuilder]: At program point L44-1(line 44) the Hoare annotation is: true [2023-11-19 04:54:37,565 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 56 67) no Hoare annotation was computed. [2023-11-19 04:54:37,565 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-19 04:54:37,565 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-19 04:54:37,565 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-11-19 04:54:37,565 INFO L899 garLoopResultBuilder]: For program point property_returnLabel#1(lines 52 55) no Hoare annotation was computed. [2023-11-19 04:54:37,566 INFO L899 garLoopResultBuilder]: For program point L45(line 45) no Hoare annotation was computed. [2023-11-19 04:54:37,566 INFO L902 garLoopResultBuilder]: At program point L41(line 41) the Hoare annotation is: true [2023-11-19 04:54:37,566 INFO L902 garLoopResultBuilder]: At program point L41-1(line 41) the Hoare annotation is: true [2023-11-19 04:54:37,566 INFO L899 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2023-11-19 04:54:37,567 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 04:54:37,567 INFO L899 garLoopResultBuilder]: For program point L33-2(lines 30 36) no Hoare annotation was computed. [2023-11-19 04:54:37,567 INFO L899 garLoopResultBuilder]: For program point L29(lines 29 38) no Hoare annotation was computed. [2023-11-19 04:54:37,568 INFO L899 garLoopResultBuilder]: For program point L50(lines 50 51) no Hoare annotation was computed. [2023-11-19 04:54:37,572 INFO L899 garLoopResultBuilder]: For program point L42(line 42) no Hoare annotation was computed. [2023-11-19 04:54:37,572 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 04:54:37,572 INFO L899 garLoopResultBuilder]: For program point L30(lines 30 36) no Hoare annotation was computed. [2023-11-19 04:54:37,577 INFO L902 garLoopResultBuilder]: At program point L59-2(lines 59 65) the Hoare annotation is: true [2023-11-19 04:54:37,578 INFO L899 garLoopResultBuilder]: For program point L59-3(lines 59 65) no Hoare annotation was computed. [2023-11-19 04:54:37,578 INFO L902 garLoopResultBuilder]: At program point L47(line 47) the Hoare annotation is: true [2023-11-19 04:54:37,578 INFO L902 garLoopResultBuilder]: At program point L47-1(line 47) the Hoare annotation is: true [2023-11-19 04:54:37,579 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-11-19 04:54:37,579 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-11-19 04:54:37,579 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-11-19 04:54:37,579 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-11-19 04:54:37,583 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-19 04:54:37,586 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:54:37,598 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:54:37 BoogieIcfgContainer [2023-11-19 04:54:37,598 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:54:37,604 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:54:37,604 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:54:37,605 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:54:37,605 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:54:21" (3/4) ... [2023-11-19 04:54:37,610 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 04:54:37,616 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-19 04:54:37,623 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-11-19 04:54:37,624 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-19 04:54:37,624 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 04:54:37,625 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 04:54:37,740 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 04:54:37,741 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/witness.yml [2023-11-19 04:54:37,741 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:54:37,742 INFO L158 Benchmark]: Toolchain (without parser) took 16983.16ms. Allocated memory was 75.5MB in the beginning and 465.6MB in the end (delta: 390.1MB). Free memory was 51.4MB in the beginning and 207.4MB in the end (delta: -156.1MB). Peak memory consumption was 235.0MB. Max. memory is 16.1GB. [2023-11-19 04:54:37,742 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 75.5MB. Free memory is still 50.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:54:37,742 INFO L158 Benchmark]: CACSL2BoogieTranslator took 345.83ms. Allocated memory is still 75.5MB. Free memory was 51.2MB in the beginning and 39.6MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 04:54:37,743 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.75ms. Allocated memory is still 75.5MB. Free memory was 39.6MB in the beginning and 37.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:54:37,743 INFO L158 Benchmark]: Boogie Preprocessor took 43.72ms. Allocated memory was 75.5MB in the beginning and 94.4MB in the end (delta: 18.9MB). Free memory was 37.9MB in the beginning and 73.1MB in the end (delta: -35.3MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2023-11-19 04:54:37,744 INFO L158 Benchmark]: RCFGBuilder took 338.39ms. Allocated memory is still 94.4MB. Free memory was 73.1MB in the beginning and 61.9MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 04:54:37,744 INFO L158 Benchmark]: TraceAbstraction took 16050.10ms. Allocated memory was 94.4MB in the beginning and 465.6MB in the end (delta: 371.2MB). Free memory was 61.2MB in the beginning and 212.7MB in the end (delta: -151.5MB). Peak memory consumption was 219.3MB. Max. memory is 16.1GB. [2023-11-19 04:54:37,745 INFO L158 Benchmark]: Witness Printer took 136.99ms. Allocated memory is still 465.6MB. Free memory was 212.7MB in the beginning and 207.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:54:37,747 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 75.5MB. Free memory is still 50.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 345.83ms. Allocated memory is still 75.5MB. Free memory was 51.2MB in the beginning and 39.6MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.75ms. Allocated memory is still 75.5MB. Free memory was 39.6MB in the beginning and 37.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 43.72ms. Allocated memory was 75.5MB in the beginning and 94.4MB in the end (delta: 18.9MB). Free memory was 37.9MB in the beginning and 73.1MB in the end (delta: -35.3MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. * RCFGBuilder took 338.39ms. Allocated memory is still 94.4MB. Free memory was 73.1MB in the beginning and 61.9MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 16050.10ms. Allocated memory was 94.4MB in the beginning and 465.6MB in the end (delta: 371.2MB). Free memory was 61.2MB in the beginning and 212.7MB in the end (delta: -151.5MB). Peak memory consumption was 219.3MB. Max. memory is 16.1GB. * Witness Printer took 136.99ms. Allocated memory is still 465.6MB. Free memory was 212.7MB in the beginning and 207.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 16.0s, OverallIterations: 3, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 97 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 79 mSDsluCounter, 664 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 494 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 252 IncrementalHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 170 mSDtfsCounter, 252 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 145 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 45 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 25 PreInvPairs, 40 NumberOfFragments, 8 HoareAnnotationTreeSize, 25 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 13.7s InterpolantComputationTime, 134 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 131 ConstructedInterpolants, 0 QuantifiedInterpolants, 272 SizeOfPredicates, 27 NumberOfNonLiveVariables, 232 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 180/180 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: 59]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-11-19 04:54:37,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7a52e4-eb4e-4c37-a0a4-e0e14a88415a/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE