./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/systemc/transmitter.01.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4781bf0-9785-4b3a-a120-8bdfbf345e62/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4781bf0-9785-4b3a-a120-8bdfbf345e62/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4781bf0-9785-4b3a-a120-8bdfbf345e62/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4781bf0-9785-4b3a-a120-8bdfbf345e62/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/systemc/transmitter.01.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4781bf0-9785-4b3a-a120-8bdfbf345e62/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4781bf0-9785-4b3a-a120-8bdfbf345e62/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ea17b00cb6ed3e05e0ac7861fb220a62ceca6ba97bc4fe703ce3eb0d0ec5cbfe --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:05:04,683 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:05:04,782 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4781bf0-9785-4b3a-a120-8bdfbf345e62/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 05:05:04,791 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:05:04,792 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:05:04,833 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:05:04,833 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:05:04,834 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:05:04,834 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:05:04,834 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:05:04,834 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:05:04,834 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:05:04,834 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:05:04,834 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:05:04,835 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:05:04,836 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:05:04,836 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:05:04,836 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:05:04,837 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:05:04,837 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:05:04,838 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:05:04,838 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:05:04,839 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:05:04,839 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:05:04,839 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:05:04,840 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:05:04,840 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:05:04,840 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:05:04,840 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:05:04,840 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:05:04,840 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:05:04,840 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:05:04,840 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:05:04,841 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:05:04,841 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:05:04,841 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:05:04,842 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:05:04,842 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:05:04,842 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:05:04,842 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:05:04,842 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:05:04,843 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:05:04,843 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:05:04,843 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:05:04,843 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:05:04,843 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:05:04,843 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:05:04,843 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4781bf0-9785-4b3a-a120-8bdfbf345e62/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea17b00cb6ed3e05e0ac7861fb220a62ceca6ba97bc4fe703ce3eb0d0ec5cbfe [2024-11-14 05:05:05,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:05:05,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:05:05,212 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:05:05,215 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:05:05,215 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:05:05,217 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4781bf0-9785-4b3a-a120-8bdfbf345e62/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/systemc/transmitter.01.cil.c Unable to find full path for "g++" [2024-11-14 05:05:07,376 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:05:07,656 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:05:07,657 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4781bf0-9785-4b3a-a120-8bdfbf345e62/sv-benchmarks/c/systemc/transmitter.01.cil.c [2024-11-14 05:05:07,677 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4781bf0-9785-4b3a-a120-8bdfbf345e62/bin/utaipan-verify-sOmjnqqW8E/data/3646a1d08/78ffc7766f084b1cbf4f1bc86da624a5/FLAGfd8b4ad8a [2024-11-14 05:05:07,703 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4781bf0-9785-4b3a-a120-8bdfbf345e62/bin/utaipan-verify-sOmjnqqW8E/data/3646a1d08/78ffc7766f084b1cbf4f1bc86da624a5 [2024-11-14 05:05:07,706 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:05:07,709 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:05:07,712 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:05:07,713 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:05:07,717 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:05:07,718 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:05:07" (1/1) ... [2024-11-14 05:05:07,719 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5aa6e815 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:05:07, skipping insertion in model container [2024-11-14 05:05:07,720 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:05:07" (1/1) ... [2024-11-14 05:05:07,751 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:05:07,940 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4781bf0-9785-4b3a-a120-8bdfbf345e62/sv-benchmarks/c/systemc/transmitter.01.cil.c[706,719] [2024-11-14 05:05:08,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:05:08,025 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:05:08,037 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4781bf0-9785-4b3a-a120-8bdfbf345e62/sv-benchmarks/c/systemc/transmitter.01.cil.c[706,719] [2024-11-14 05:05:08,061 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:05:08,079 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:05:08,082 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:05:08 WrapperNode [2024-11-14 05:05:08,082 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:05:08,083 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:05:08,084 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:05:08,084 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:05:08,091 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:05:08" (1/1) ... [2024-11-14 05:05:08,096 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:05:08" (1/1) ... [2024-11-14 05:05:08,125 INFO L138 Inliner]: procedures = 30, calls = 33, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 207 [2024-11-14 05:05:08,126 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:05:08,126 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:05:08,126 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:05:08,126 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:05:08,137 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:05:08" (1/1) ... [2024-11-14 05:05:08,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:05:08" (1/1) ... [2024-11-14 05:05:08,139 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:05:08" (1/1) ... [2024-11-14 05:05:08,139 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:05:08" (1/1) ... [2024-11-14 05:05:08,144 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:05:08" (1/1) ... [2024-11-14 05:05:08,149 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:05:08" (1/1) ... [2024-11-14 05:05:08,150 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:05:08" (1/1) ... [2024-11-14 05:05:08,151 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:05:08" (1/1) ... [2024-11-14 05:05:08,154 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:05:08,154 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:05:08,155 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:05:08,155 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:05:08,156 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:05:08" (1/1) ... [2024-11-14 05:05:08,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:05:08,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4781bf0-9785-4b3a-a120-8bdfbf345e62/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:05:08,195 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4781bf0-9785-4b3a-a120-8bdfbf345e62/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:05:08,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4781bf0-9785-4b3a-a120-8bdfbf345e62/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:05:08,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:05:08,234 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-14 05:05:08,234 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-14 05:05:08,234 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-14 05:05:08,234 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-14 05:05:08,234 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-14 05:05:08,234 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-14 05:05:08,235 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-14 05:05:08,235 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-14 05:05:08,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:05:08,235 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-14 05:05:08,235 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-14 05:05:08,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:05:08,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:05:08,350 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:05:08,353 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:05:08,715 INFO L? ?]: Removed 31 outVars from TransFormulas that were not future-live. [2024-11-14 05:05:08,715 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:05:08,847 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:05:08,847 INFO L316 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-14 05:05:08,848 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:05:08 BoogieIcfgContainer [2024-11-14 05:05:08,848 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:05:08,850 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:05:08,850 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:05:08,858 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:05:08,858 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:05:07" (1/3) ... [2024-11-14 05:05:08,859 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@315fc445 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:05:08, skipping insertion in model container [2024-11-14 05:05:08,859 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:05:08" (2/3) ... [2024-11-14 05:05:08,860 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@315fc445 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:05:08, skipping insertion in model container [2024-11-14 05:05:08,860 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:05:08" (3/3) ... [2024-11-14 05:05:08,861 INFO L112 eAbstractionObserver]: Analyzing ICFG transmitter.01.cil.c [2024-11-14 05:05:08,880 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:05:08,882 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG transmitter.01.cil.c that has 6 procedures, 64 locations, 1 initial locations, 5 loop locations, and 1 error locations. [2024-11-14 05:05:08,958 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:05:08,975 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@c31f3a8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:05:08,975 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:05:08,982 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 44 states have (on average 1.4545454545454546) internal successors, (64), 46 states have internal predecessors, (64), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-14 05:05:08,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-14 05:05:08,992 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:05:08,993 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:05:08,994 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:05:09,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:05:09,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1630122487, now seen corresponding path program 1 times [2024-11-14 05:05:09,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:05:09,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065322255] [2024-11-14 05:05:09,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:05:09,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:05:09,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:05:09,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:05:09,448 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:05:09,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065322255] [2024-11-14 05:05:09,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065322255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:05:09,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:05:09,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:05:09,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221383242] [2024-11-14 05:05:09,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:05:09,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:05:09,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:05:09,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:05:09,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:05:09,503 INFO L87 Difference]: Start difference. First operand has 64 states, 44 states have (on average 1.4545454545454546) internal successors, (64), 46 states have internal predecessors, (64), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 05:05:09,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:05:09,935 INFO L93 Difference]: Finished difference Result 175 states and 248 transitions. [2024-11-14 05:05:09,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:05:09,937 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 33 [2024-11-14 05:05:09,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:05:09,947 INFO L225 Difference]: With dead ends: 175 [2024-11-14 05:05:09,948 INFO L226 Difference]: Without dead ends: 112 [2024-11-14 05:05:09,954 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:05:09,960 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 134 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:05:09,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 182 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:05:09,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-14 05:05:10,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 109. [2024-11-14 05:05:10,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 77 states have (on average 1.2727272727272727) internal successors, (98), 78 states have internal predecessors, (98), 21 states have call successors, (21), 10 states have call predecessors, (21), 10 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-14 05:05:10,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 140 transitions. [2024-11-14 05:05:10,032 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 140 transitions. Word has length 33 [2024-11-14 05:05:10,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:05:10,033 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 140 transitions. [2024-11-14 05:05:10,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 05:05:10,034 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 140 transitions. [2024-11-14 05:05:10,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-14 05:05:10,036 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:05:10,036 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:05:10,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:05:10,036 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:05:10,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:05:10,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1884863880, now seen corresponding path program 1 times [2024-11-14 05:05:10,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:05:10,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821560476] [2024-11-14 05:05:10,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:05:10,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:05:10,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:05:10,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:05:10,354 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:05:10,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821560476] [2024-11-14 05:05:10,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821560476] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:05:10,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:05:10,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 05:05:10,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042820716] [2024-11-14 05:05:10,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:05:10,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:05:10,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:05:10,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:05:10,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:05:10,360 INFO L87 Difference]: Start difference. First operand 109 states and 140 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 05:05:10,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:05:10,882 INFO L93 Difference]: Finished difference Result 276 states and 350 transitions. [2024-11-14 05:05:10,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 05:05:10,885 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 33 [2024-11-14 05:05:10,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:05:10,892 INFO L225 Difference]: With dead ends: 276 [2024-11-14 05:05:10,892 INFO L226 Difference]: Without dead ends: 173 [2024-11-14 05:05:10,893 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-11-14 05:05:10,894 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 163 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:05:10,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 203 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 05:05:10,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-11-14 05:05:10,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 164. [2024-11-14 05:05:10,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 118 states have (on average 1.2627118644067796) internal successors, (149), 119 states have internal predecessors, (149), 29 states have call successors, (29), 16 states have call predecessors, (29), 16 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-14 05:05:10,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 207 transitions. [2024-11-14 05:05:10,943 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 207 transitions. Word has length 33 [2024-11-14 05:05:10,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:05:10,944 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 207 transitions. [2024-11-14 05:05:10,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-14 05:05:10,946 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 207 transitions. [2024-11-14 05:05:10,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-14 05:05:10,947 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:05:10,947 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:05:10,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 05:05:10,947 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:05:10,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:05:10,948 INFO L85 PathProgramCache]: Analyzing trace with hash -641175159, now seen corresponding path program 1 times [2024-11-14 05:05:10,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:05:10,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123589956] [2024-11-14 05:05:10,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:05:10,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:05:10,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:05:11,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:05:11,057 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:05:11,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123589956] [2024-11-14 05:05:11,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123589956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:05:11,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:05:11,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:05:11,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044399980] [2024-11-14 05:05:11,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:05:11,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:05:11,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:05:11,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:05:11,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:05:11,060 INFO L87 Difference]: Start difference. First operand 164 states and 207 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-14 05:05:11,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:05:11,172 INFO L93 Difference]: Finished difference Result 472 states and 596 transitions. [2024-11-14 05:05:11,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:05:11,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 35 [2024-11-14 05:05:11,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:05:11,176 INFO L225 Difference]: With dead ends: 472 [2024-11-14 05:05:11,176 INFO L226 Difference]: Without dead ends: 313 [2024-11-14 05:05:11,177 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:05:11,178 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 58 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:05:11,179 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 137 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:05:11,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-11-14 05:05:11,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 310. [2024-11-14 05:05:11,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 223 states have (on average 1.2152466367713004) internal successors, (271), 224 states have internal predecessors, (271), 54 states have call successors, (54), 32 states have call predecessors, (54), 32 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-14 05:05:11,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 379 transitions. [2024-11-14 05:05:11,257 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 379 transitions. Word has length 35 [2024-11-14 05:05:11,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:05:11,259 INFO L471 AbstractCegarLoop]: Abstraction has 310 states and 379 transitions. [2024-11-14 05:05:11,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-14 05:05:11,260 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 379 transitions. [2024-11-14 05:05:11,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-14 05:05:11,262 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:05:11,262 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:05:11,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 05:05:11,263 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:05:11,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:05:11,264 INFO L85 PathProgramCache]: Analyzing trace with hash -727614361, now seen corresponding path program 1 times [2024-11-14 05:05:11,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:05:11,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919670081] [2024-11-14 05:05:11,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:05:11,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:05:11,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:05:11,378 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 05:05:11,378 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:05:11,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919670081] [2024-11-14 05:05:11,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919670081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:05:11,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:05:11,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:05:11,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760305617] [2024-11-14 05:05:11,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:05:11,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:05:11,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:05:11,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:05:11,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:05:11,380 INFO L87 Difference]: Start difference. First operand 310 states and 379 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 05:05:11,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:05:11,520 INFO L93 Difference]: Finished difference Result 568 states and 699 transitions. [2024-11-14 05:05:11,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:05:11,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 49 [2024-11-14 05:05:11,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:05:11,528 INFO L225 Difference]: With dead ends: 568 [2024-11-14 05:05:11,531 INFO L226 Difference]: Without dead ends: 410 [2024-11-14 05:05:11,532 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:05:11,533 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 34 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:05:11,534 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 161 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:05:11,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2024-11-14 05:05:11,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 346. [2024-11-14 05:05:11,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 253 states have (on average 1.2134387351778657) internal successors, (307), 254 states have internal predecessors, (307), 57 states have call successors, (57), 35 states have call predecessors, (57), 35 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-14 05:05:11,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 421 transitions. [2024-11-14 05:05:11,594 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 421 transitions. Word has length 49 [2024-11-14 05:05:11,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:05:11,595 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 421 transitions. [2024-11-14 05:05:11,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 05:05:11,595 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 421 transitions. [2024-11-14 05:05:11,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-14 05:05:11,597 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:05:11,598 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:05:11,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 05:05:11,598 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:05:11,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:05:11,599 INFO L85 PathProgramCache]: Analyzing trace with hash 384305894, now seen corresponding path program 1 times [2024-11-14 05:05:11,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:05:11,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414910301] [2024-11-14 05:05:11,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:05:11,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:05:11,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:05:11,673 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-14 05:05:11,673 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:05:11,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414910301] [2024-11-14 05:05:11,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414910301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:05:11,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:05:11,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:05:11,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085756783] [2024-11-14 05:05:11,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:05:11,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:05:11,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:05:11,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:05:11,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:05:11,676 INFO L87 Difference]: Start difference. First operand 346 states and 421 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-14 05:05:11,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:05:11,896 INFO L93 Difference]: Finished difference Result 540 states and 667 transitions. [2024-11-14 05:05:11,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:05:11,898 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 63 [2024-11-14 05:05:11,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:05:11,901 INFO L225 Difference]: With dead ends: 540 [2024-11-14 05:05:11,901 INFO L226 Difference]: Without dead ends: 346 [2024-11-14 05:05:11,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:05:11,905 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 129 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:05:11,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 182 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:05:11,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-11-14 05:05:11,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 342. [2024-11-14 05:05:11,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 249 states have (on average 1.176706827309237) internal successors, (293), 250 states have internal predecessors, (293), 57 states have call successors, (57), 35 states have call predecessors, (57), 35 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-14 05:05:11,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 407 transitions. [2024-11-14 05:05:11,984 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 407 transitions. Word has length 63 [2024-11-14 05:05:11,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:05:11,984 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 407 transitions. [2024-11-14 05:05:11,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-14 05:05:11,985 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 407 transitions. [2024-11-14 05:05:11,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-14 05:05:11,989 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:05:11,989 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:05:11,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 05:05:11,989 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:05:11,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:05:11,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1663630629, now seen corresponding path program 1 times [2024-11-14 05:05:11,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:05:11,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952534148] [2024-11-14 05:05:11,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:05:11,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:05:12,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:05:12,009 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 05:05:12,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:05:12,076 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 05:05:12,076 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 05:05:12,078 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 05:05:12,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 05:05:12,087 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-14 05:05:12,161 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 05:05:12,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:05:12 BoogieIcfgContainer [2024-11-14 05:05:12,166 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 05:05:12,166 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 05:05:12,166 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 05:05:12,167 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 05:05:12,168 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:05:08" (3/4) ... [2024-11-14 05:05:12,171 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-14 05:05:12,242 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4781bf0-9785-4b3a-a120-8bdfbf345e62/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 05:05:12,242 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 05:05:12,243 INFO L158 Benchmark]: Toolchain (without parser) took 4534.29ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 69.2MB in the end (delta: 23.5MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2024-11-14 05:05:12,245 INFO L158 Benchmark]: CDTParser took 1.07ms. Allocated memory is still 117.4MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:05:12,245 INFO L158 Benchmark]: CACSL2BoogieTranslator took 371.35ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 79.7MB in the end (delta: 13.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 05:05:12,249 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.32ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 78.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:05:12,249 INFO L158 Benchmark]: Boogie Preprocessor took 27.66ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 77.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:05:12,249 INFO L158 Benchmark]: RCFGBuilder took 693.52ms. Allocated memory is still 117.4MB. Free memory was 76.8MB in the beginning and 50.2MB in the end (delta: 26.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-14 05:05:12,249 INFO L158 Benchmark]: TraceAbstraction took 3315.55ms. Allocated memory is still 117.4MB. Free memory was 49.8MB in the beginning and 73.6MB in the end (delta: -23.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:05:12,250 INFO L158 Benchmark]: Witness Printer took 75.73ms. Allocated memory is still 117.4MB. Free memory was 73.6MB in the beginning and 69.2MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:05:12,251 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.07ms. Allocated memory is still 117.4MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 371.35ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 79.7MB in the end (delta: 13.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.32ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 78.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.66ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 77.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 693.52ms. Allocated memory is still 117.4MB. Free memory was 76.8MB in the beginning and 50.2MB in the end (delta: 26.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 3315.55ms. Allocated memory is still 117.4MB. Free memory was 49.8MB in the beginning and 73.6MB in the end (delta: -23.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 75.73ms. Allocated memory is still 117.4MB. Free memory was 73.6MB in the beginning and 69.2MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. 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 - CounterExampleResult [Line: 21]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L25] int m_pc = 0; [L26] int t1_pc = 0; [L27] int m_st ; [L28] int t1_st ; [L29] int m_i ; [L30] int t1_i ; [L31] int M_E = 2; [L32] int T1_E = 2; [L33] int E_1 = 2; [L449] int __retres1 ; [L453] CALL init_model() [L364] m_i = 1 [L365] t1_i = 1 [L453] RET init_model() [L454] CALL start_simulation() [L390] int kernel_st ; [L391] int tmp ; [L392] int tmp___0 ; [L396] kernel_st = 0 VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L397] FCALL update_channels() VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L398] CALL init_threads() [L161] COND TRUE m_i == 1 [L162] m_st = 0 [L166] COND TRUE t1_i == 1 [L167] t1_st = 0 [L398] RET init_threads() [L399] CALL fire_delta_events() VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L250] COND FALSE !(M_E == 0) [L255] COND FALSE !(T1_E == 0) [L260] COND FALSE !(E_1 == 0) [L399] RET fire_delta_events() VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L400] CALL activate_threads() VAL [E_1=2, M_E=2, T1_E=2, \old(m_st)=0, \old(t1_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L293] int tmp ; [L294] int tmp___0 ; [L298] CALL, EXPR is_master_triggered() [L112] int __retres1 ; VAL [E_1=2, M_E=2, T1_E=2, \old(m_st)=0, \old(t1_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L115] COND FALSE !(m_pc == 1) VAL [E_1=2, M_E=2, T1_E=2, \old(m_st)=0, \old(t1_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L125] __retres1 = 0 VAL [E_1=2, M_E=2, T1_E=2, \old(m_st)=0, \old(t1_st)=0, __retres1=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L127] return (__retres1); [L298] RET, EXPR is_master_triggered() [L298] tmp = is_master_triggered() [L300] COND FALSE !(\read(tmp)) [L306] CALL, EXPR is_transmit1_triggered() [L131] int __retres1 ; VAL [E_1=2, M_E=2, T1_E=2, \old(m_st)=0, \old(t1_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L134] COND FALSE !(t1_pc == 1) VAL [E_1=2, M_E=2, T1_E=2, \old(m_st)=0, \old(t1_st)=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L144] __retres1 = 0 VAL [E_1=2, M_E=2, T1_E=2, \old(m_st)=0, \old(t1_st)=0, __retres1=0, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L146] return (__retres1); [L306] RET, EXPR is_transmit1_triggered() [L306] tmp___0 = is_transmit1_triggered() [L308] COND FALSE !(\read(tmp___0)) [L400] RET activate_threads() VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L401] CALL reset_delta_events() VAL [E_1=2, M_E=2, T1_E=2, \old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L273] COND FALSE !(M_E == 1) [L278] COND FALSE !(T1_E == 1) [L283] COND FALSE !(E_1 == 1) [L401] RET reset_delta_events() VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L404] COND TRUE 1 [L407] kernel_st = 1 [L408] CALL eval() [L197] int tmp ; VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L201] COND TRUE 1 VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L204] CALL, EXPR exists_runnable_thread() VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L176] int __retres1 ; [L179] COND TRUE m_st == 0 [L180] __retres1 = 1 [L192] return (__retres1); [L204] RET, EXPR exists_runnable_thread() VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L204] tmp = exists_runnable_thread() [L206] COND TRUE \read(tmp) VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L211] COND TRUE m_st == 0 [L212] int tmp_ndt_1; [L213] tmp_ndt_1 = __VERIFIER_nondet_int() [L214] COND FALSE !(\read(tmp_ndt_1)) VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=0] [L225] COND TRUE t1_st == 0 [L226] int tmp_ndt_2; [L227] tmp_ndt_2 = __VERIFIER_nondet_int() [L228] COND TRUE \read(tmp_ndt_2) [L230] t1_st = 1 [L231] CALL transmit1() [L82] COND TRUE t1_pc == 0 VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=0, t1_st=1] [L93] COND TRUE 1 [L95] t1_pc = 1 [L96] t1_st = 2 [L231] RET transmit1() [L201] COND TRUE 1 VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=1, t1_st=2] [L204] CALL, EXPR exists_runnable_thread() VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=1, t1_st=2] [L176] int __retres1 ; [L179] COND TRUE m_st == 0 [L180] __retres1 = 1 [L192] return (__retres1); [L204] RET, EXPR exists_runnable_thread() VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=1, t1_st=2] [L204] tmp = exists_runnable_thread() [L206] COND TRUE \read(tmp) VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=0, m_st=0, t1_i=1, t1_pc=1, t1_st=2] [L211] COND TRUE m_st == 0 [L212] int tmp_ndt_1; [L213] tmp_ndt_1 = __VERIFIER_nondet_int() [L214] COND TRUE \read(tmp_ndt_1) [L216] m_st = 1 [L217] CALL master() [L41] COND TRUE m_pc == 0 VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2] [L52] COND TRUE 1 [L55] E_1 = 1 [L56] CALL immediate_notify() [L322] CALL activate_threads() VAL [E_1=1, M_E=2, T1_E=2, \old(m_st)=1, \old(t1_st)=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2] [L293] int tmp ; [L294] int tmp___0 ; [L298] CALL, EXPR is_master_triggered() [L112] int __retres1 ; VAL [E_1=1, M_E=2, T1_E=2, \old(m_st)=1, \old(t1_st)=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2] [L115] COND FALSE !(m_pc == 1) VAL [E_1=1, M_E=2, T1_E=2, \old(m_st)=1, \old(t1_st)=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2] [L125] __retres1 = 0 VAL [E_1=1, M_E=2, T1_E=2, \old(m_st)=1, \old(t1_st)=2, __retres1=0, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2] [L127] return (__retres1); [L298] RET, EXPR is_master_triggered() [L298] tmp = is_master_triggered() [L300] COND FALSE !(\read(tmp)) [L306] CALL, EXPR is_transmit1_triggered() [L131] int __retres1 ; VAL [E_1=1, M_E=2, T1_E=2, \old(m_st)=1, \old(t1_st)=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2] [L134] COND TRUE t1_pc == 1 VAL [E_1=1, M_E=2, T1_E=2, \old(m_st)=1, \old(t1_st)=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2] [L135] COND TRUE E_1 == 1 [L136] __retres1 = 1 VAL [E_1=1, M_E=2, T1_E=2, \old(m_st)=1, \old(t1_st)=2, __retres1=1, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=2] [L146] return (__retres1); [L306] RET, EXPR is_transmit1_triggered() [L306] tmp___0 = is_transmit1_triggered() [L308] COND TRUE \read(tmp___0) [L309] t1_st = 0 [L322] RET activate_threads() VAL [E_1=1, M_E=2, T1_E=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=0] [L56] RET immediate_notify() [L57] E_1 = 2 VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=0, m_st=1, t1_i=1, t1_pc=1, t1_st=0] [L60] COND TRUE 1 [L62] m_pc = 1 [L63] m_st = 2 VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=0] [L217] RET master() [L225] COND TRUE t1_st == 0 [L226] int tmp_ndt_2; [L227] tmp_ndt_2 = __VERIFIER_nondet_int() [L228] COND TRUE \read(tmp_ndt_2) [L230] t1_st = 1 [L231] CALL transmit1() [L82] COND FALSE !(t1_pc == 0) VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1] [L85] COND TRUE t1_pc == 1 [L101] CALL error() [L21] reach_error() VAL [E_1=2, M_E=2, T1_E=2, m_i=1, m_pc=1, m_st=2, t1_i=1, t1_pc=1, t1_st=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 64 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.2s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 525 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 518 mSDsluCounter, 865 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 386 mSDsCounter, 69 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 448 IncrementalHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 69 mSolverCounterUnsat, 479 mSDtfsCounter, 448 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=346occurred in iteration=4, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 83 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 276 NumberOfCodeBlocks, 276 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 208 ConstructedInterpolants, 0 QuantifiedInterpolants, 349 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 32/32 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 proved your program to be incorrect! [2024-11-14 05:05:12,284 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4781bf0-9785-4b3a-a120-8bdfbf345e62/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE