./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_functionizing_file-6.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_functionizing_file-6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX --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 758300177d1b355ef883590ed584633de094bad912a987cbd68951ea58e51ff9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:14:47,686 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:14:47,801 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:14:47,807 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:14:47,809 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:14:47,847 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:14:47,848 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:14:47,849 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:14:47,850 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:14:47,855 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:14:47,855 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:14:47,856 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:14:47,857 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:14:47,858 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:14:47,859 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:14:47,859 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:14:47,860 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:14:47,860 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:14:47,861 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:14:47,862 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:14:47,862 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:14:47,863 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:14:47,864 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:14:47,865 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:14:47,865 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:14:47,866 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:14:47,866 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:14:47,867 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:14:47,867 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:14:47,868 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:14:47,869 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:14:47,869 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:14:47,870 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:14:47,870 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:14:47,870 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:14:47,871 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:14:47,871 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:14:47,872 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:14:47,872 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:14:47,872 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:14:47,873 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:14:47,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:14:47,873 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:14:47,874 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:14:47,874 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:14:47,875 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_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 758300177d1b355ef883590ed584633de094bad912a987cbd68951ea58e51ff9 [2023-11-12 00:14:48,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:14:48,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:14:48,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:14:48,216 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:14:48,217 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:14:48,218 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_functionizing_file-6.i [2023-11-12 00:14:51,457 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:14:51,707 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:14:51,707 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_functionizing_file-6.i [2023-11-12 00:14:51,718 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/data/f62c26b1b/26e3f86db37440759f5c08447517dea7/FLAG54079fa24 [2023-11-12 00:14:51,737 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/data/f62c26b1b/26e3f86db37440759f5c08447517dea7 [2023-11-12 00:14:51,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:14:51,741 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:14:51,742 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:14:51,742 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:14:51,747 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:14:51,748 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:14:51" (1/1) ... [2023-11-12 00:14:51,749 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34097b84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:51, skipping insertion in model container [2023-11-12 00:14:51,750 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:14:51" (1/1) ... [2023-11-12 00:14:51,789 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:14:51,930 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_7d6add6d-a472-4c36-9cfd-bce16ae93e55/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_functionizing_file-6.i[919,932] [2023-11-12 00:14:51,992 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:14:52,007 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:14:52,022 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_7d6add6d-a472-4c36-9cfd-bce16ae93e55/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_functionizing_file-6.i[919,932] [2023-11-12 00:14:52,075 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:14:52,093 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:14:52,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:52 WrapperNode [2023-11-12 00:14:52,094 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:14:52,095 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:14:52,096 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:14:52,096 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:14:52,106 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:52" (1/1) ... [2023-11-12 00:14:52,116 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:52" (1/1) ... [2023-11-12 00:14:52,175 INFO L138 Inliner]: procedures = 31, calls = 37, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 152 [2023-11-12 00:14:52,176 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:14:52,177 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:14:52,177 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:14:52,177 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:14:52,186 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:52" (1/1) ... [2023-11-12 00:14:52,186 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:52" (1/1) ... [2023-11-12 00:14:52,189 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:52" (1/1) ... [2023-11-12 00:14:52,190 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:52" (1/1) ... [2023-11-12 00:14:52,200 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:52" (1/1) ... [2023-11-12 00:14:52,204 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:52" (1/1) ... [2023-11-12 00:14:52,207 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:52" (1/1) ... [2023-11-12 00:14:52,209 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:52" (1/1) ... [2023-11-12 00:14:52,221 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:14:52,222 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:14:52,233 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:14:52,233 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:14:52,239 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:52" (1/1) ... [2023-11-12 00:14:52,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:14:52,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:14:52,290 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:14:52,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:14:52,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:14:52,342 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:14:52,342 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:14:52,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:14:52,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:14:52,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:14:52,471 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:14:52,482 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:14:52,839 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:14:53,175 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:14:53,175 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:14:53,181 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:14:53 BoogieIcfgContainer [2023-11-12 00:14:53,181 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:14:53,184 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:14:53,185 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:14:53,188 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:14:53,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:14:51" (1/3) ... [2023-11-12 00:14:53,190 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fe3aaf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:14:53, skipping insertion in model container [2023-11-12 00:14:53,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:52" (2/3) ... [2023-11-12 00:14:53,192 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fe3aaf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:14:53, skipping insertion in model container [2023-11-12 00:14:53,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:14:53" (3/3) ... [2023-11-12 00:14:53,194 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_functionizing_file-6.i [2023-11-12 00:14:53,217 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:14:53,217 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:14:53,281 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:14:53,288 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;@66d3edf4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:14:53,289 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:14:53,294 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-12 00:14:53,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-12 00:14:53,312 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:14:53,312 INFO L195 NwaCegarLoop]: trace histogram [19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:14:53,314 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:14:53,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:14:53,324 INFO L85 PathProgramCache]: Analyzing trace with hash 76544923, now seen corresponding path program 1 times [2023-11-12 00:14:53,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:14:53,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229633251] [2023-11-12 00:14:53,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:14:53,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:14:53,595 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 00:14:53,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1827218011] [2023-11-12 00:14:53,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:14:53,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:14:53,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:14:53,604 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:14:53,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:14:53,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:14:53,899 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:14:53,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:14:54,068 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:14:54,072 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:14:54,074 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:14:54,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-12 00:14:54,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:14:54,288 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-12 00:14:54,292 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:14:54,374 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:14:54 BoogieIcfgContainer [2023-11-12 00:14:54,374 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:14:54,375 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:14:54,375 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:14:54,375 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:14:54,376 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:14:53" (3/4) ... [2023-11-12 00:14:54,378 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 00:14:54,379 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:14:54,381 INFO L158 Benchmark]: Toolchain (without parser) took 2639.67ms. Allocated memory was 163.6MB in the beginning and 237.0MB in the end (delta: 73.4MB). Free memory was 119.3MB in the beginning and 164.2MB in the end (delta: -44.9MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. [2023-11-12 00:14:54,381 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 163.6MB. Free memory is still 136.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:14:54,382 INFO L158 Benchmark]: CACSL2BoogieTranslator took 352.63ms. Allocated memory is still 163.6MB. Free memory was 118.8MB in the beginning and 105.1MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-12 00:14:54,382 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.61ms. Allocated memory is still 163.6MB. Free memory was 105.1MB in the beginning and 102.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:14:54,383 INFO L158 Benchmark]: Boogie Preprocessor took 45.02ms. Allocated memory is still 163.6MB. Free memory was 102.5MB in the beginning and 100.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:14:54,384 INFO L158 Benchmark]: RCFGBuilder took 958.83ms. Allocated memory was 163.6MB in the beginning and 237.0MB in the end (delta: 73.4MB). Free memory was 100.4MB in the beginning and 201.9MB in the end (delta: -101.5MB). Peak memory consumption was 44.6MB. Max. memory is 16.1GB. [2023-11-12 00:14:54,385 INFO L158 Benchmark]: TraceAbstraction took 1189.93ms. Allocated memory is still 237.0MB. Free memory was 201.9MB in the beginning and 164.2MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-12 00:14:54,385 INFO L158 Benchmark]: Witness Printer took 4.49ms. Allocated memory is still 237.0MB. Free memory is still 164.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:14:54,389 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 163.6MB. Free memory is still 136.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 352.63ms. Allocated memory is still 163.6MB. Free memory was 118.8MB in the beginning and 105.1MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.61ms. Allocated memory is still 163.6MB. Free memory was 105.1MB in the beginning and 102.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.02ms. Allocated memory is still 163.6MB. Free memory was 102.5MB in the beginning and 100.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 958.83ms. Allocated memory was 163.6MB in the beginning and 237.0MB in the end (delta: 73.4MB). Free memory was 100.4MB in the beginning and 201.9MB in the end (delta: -101.5MB). Peak memory consumption was 44.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1189.93ms. Allocated memory is still 237.0MB. Free memory was 201.9MB in the beginning and 164.2MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Witness Printer took 4.49ms. Allocated memory is still 237.0MB. Free memory is still 164.2MB. 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 someBinaryFLOATComparisonOperation at line 134, overapproximation of someBinaryArithmeticDOUBLEoperation at line 49, overapproximation of someBinaryDOUBLEComparisonOperation at line 65, overapproximation of someBinaryArithmeticFLOAToperation at line 59. Possible FailurePath: [L26] unsigned char isInitial = 0; [L27] double var_1_1 = 100.25; [L28] unsigned char var_1_2 = 0; [L29] unsigned char var_1_3 = 8; [L30] unsigned char var_1_4 = 0; [L31] double var_1_5 = 1.9; [L32] double var_1_6 = 7.5; [L33] double var_1_7 = 64.25; [L34] signed long int var_1_8 = 2; [L35] signed long int var_1_9 = 1000000000; [L36] signed long int var_1_10 = 1000000000; [L37] signed long int var_1_11 = 1957998270; [L38] float var_1_12 = 50.25; [L39] float var_1_13 = 9.8; [L40] float var_1_14 = 25.5; [L41] float var_1_15 = 3.5; [L42] signed long int var_1_16 = -500; [L43] unsigned char var_1_17 = 1; [L44] unsigned char var_1_18 = 1; [L45] unsigned char var_1_19 = 0; [L138] isInitial = 1 [L139] FCALL initially() [L140] COND TRUE 1 [L141] FCALL updateLastVariables() [L142] CALL updateVariables() [L99] var_1_2 = __VERIFIER_nondet_uchar() [L100] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_3=8, var_1_4=0, var_1_5=19/10, var_1_6=15/2, var_1_7=257/4, var_1_8=2, var_1_9=1000000000] [L20] COND FALSE !(!cond) [L100] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_3=8, var_1_4=0, var_1_5=19/10, var_1_6=15/2, var_1_7=257/4, var_1_8=2, var_1_9=1000000000] [L101] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_3=8, var_1_4=0, var_1_5=19/10, var_1_6=15/2, var_1_7=257/4, var_1_8=2, var_1_9=1000000000] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_3=8, var_1_4=0, var_1_5=19/10, var_1_6=15/2, var_1_7=257/4, var_1_8=2, var_1_9=1000000000] [L102] var_1_3 = __VERIFIER_nondet_uchar() [L103] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=19/10, var_1_6=15/2, var_1_7=257/4, var_1_8=2, var_1_9=1000000000] [L20] COND FALSE !(!cond) [L103] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=19/10, var_1_6=15/2, var_1_7=257/4, var_1_8=2, var_1_9=1000000000] [L104] CALL assume_abort_if_not(var_1_3 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=19/10, var_1_6=15/2, var_1_7=257/4, var_1_8=2, var_1_9=1000000000] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not(var_1_3 <= 255) VAL [isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=19/10, var_1_6=15/2, var_1_7=257/4, var_1_8=2, var_1_9=1000000000] [L105] var_1_4 = __VERIFIER_nondet_uchar() [L106] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=19/10, var_1_6=15/2, var_1_7=257/4, var_1_8=2, var_1_9=1000000000] [L20] COND FALSE !(!cond) [L106] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=19/10, var_1_6=15/2, var_1_7=257/4, var_1_8=2, var_1_9=1000000000] [L107] CALL assume_abort_if_not(var_1_4 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=19/10, var_1_6=15/2, var_1_7=257/4, var_1_8=2, var_1_9=1000000000] [L20] COND FALSE !(!cond) [L107] RET assume_abort_if_not(var_1_4 <= 255) VAL [isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=19/10, var_1_6=15/2, var_1_7=257/4, var_1_8=2, var_1_9=1000000000] [L108] var_1_5 = __VERIFIER_nondet_double() [L109] CALL assume_abort_if_not((var_1_5 >= -461168.6018427382800e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 4611686.018427382800e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=2, var_1_6=15/2, var_1_7=257/4, var_1_8=2, var_1_9=1000000000] [L20] COND FALSE !(!cond) [L109] RET assume_abort_if_not((var_1_5 >= -461168.6018427382800e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 4611686.018427382800e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=2, var_1_6=15/2, var_1_7=257/4, var_1_8=2, var_1_9=1000000000] [L110] var_1_6 = __VERIFIER_nondet_double() [L111] CALL assume_abort_if_not((var_1_6 >= -461168.6018427382800e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 4611686.018427382800e+12F && var_1_6 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=2, var_1_6=3, var_1_7=257/4, var_1_8=2, var_1_9=1000000000] [L20] COND FALSE !(!cond) [L111] RET assume_abort_if_not((var_1_6 >= -461168.6018427382800e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 4611686.018427382800e+12F && var_1_6 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=2, var_1_6=3, var_1_7=257/4, var_1_8=2, var_1_9=1000000000] [L112] var_1_7 = __VERIFIER_nondet_double() [L113] CALL assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854765600e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=2, var_1_6=3, var_1_7=4, var_1_8=2, var_1_9=1000000000] [L20] COND FALSE !(!cond) [L113] RET assume_abort_if_not((var_1_7 >= 0.0F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854765600e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=2, var_1_6=3, var_1_7=4, var_1_8=2, var_1_9=1000000000] [L114] var_1_9 = __VERIFIER_nondet_long() [L115] CALL assume_abort_if_not(var_1_9 >= 536870911) VAL [\old(cond)=1, isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=2, var_1_6=3, var_1_7=4, var_1_8=2, var_1_9=1073741822] [L20] COND FALSE !(!cond) [L115] RET assume_abort_if_not(var_1_9 >= 536870911) VAL [isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=2, var_1_6=3, var_1_7=4, var_1_8=2, var_1_9=1073741822] [L116] CALL assume_abort_if_not(var_1_9 <= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=2, var_1_6=3, var_1_7=4, var_1_8=2, var_1_9=1073741822] [L20] COND FALSE !(!cond) [L116] RET assume_abort_if_not(var_1_9 <= 1073741823) VAL [isInitial=1, var_1_10=1000000000, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=2, var_1_6=3, var_1_7=4, var_1_8=2, var_1_9=1073741822] [L117] var_1_10 = __VERIFIER_nondet_long() [L118] CALL assume_abort_if_not(var_1_10 >= 536870911) VAL [\old(cond)=1, isInitial=1, var_1_10=1073741823, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=2, var_1_6=3, var_1_7=4, var_1_8=2, var_1_9=1073741822] [L20] COND FALSE !(!cond) [L118] RET assume_abort_if_not(var_1_10 >= 536870911) VAL [isInitial=1, var_1_10=1073741823, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=2, var_1_6=3, var_1_7=4, var_1_8=2, var_1_9=1073741822] [L119] CALL assume_abort_if_not(var_1_10 <= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=1073741823, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=2, var_1_6=3, var_1_7=4, var_1_8=2, var_1_9=1073741822] [L20] COND FALSE !(!cond) [L119] RET assume_abort_if_not(var_1_10 <= 1073741823) VAL [isInitial=1, var_1_10=1073741823, var_1_11=1957998270, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=2, var_1_6=3, var_1_7=4, var_1_8=2, var_1_9=1073741822] [L120] var_1_11 = __VERIFIER_nondet_long() [L121] CALL assume_abort_if_not(var_1_11 >= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=1073741823, var_1_11=1073741823, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=2, var_1_6=3, var_1_7=4, var_1_8=2, var_1_9=1073741822] [L20] COND FALSE !(!cond) [L121] RET assume_abort_if_not(var_1_11 >= 1073741823) VAL [isInitial=1, var_1_10=1073741823, var_1_11=1073741823, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=2, var_1_6=3, var_1_7=4, var_1_8=2, var_1_9=1073741822] [L122] CALL assume_abort_if_not(var_1_11 <= 2147483646) VAL [\old(cond)=1, isInitial=1, var_1_10=1073741823, var_1_11=1073741823, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=2, var_1_6=3, var_1_7=4, var_1_8=2, var_1_9=1073741822] [L20] COND FALSE !(!cond) [L122] RET assume_abort_if_not(var_1_11 <= 2147483646) VAL [isInitial=1, var_1_10=1073741823, var_1_11=1073741823, var_1_12=201/4, var_1_13=49/5, var_1_14=51/2, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=2, var_1_6=3, var_1_7=4, var_1_8=2, var_1_9=1073741822] [L123] var_1_14 = __VERIFIER_nondet_float() [L124] CALL assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 2305843.009213691390e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1073741823, var_1_11=1073741823, var_1_12=201/4, var_1_13=49/5, var_1_14=5, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=2, var_1_6=3, var_1_7=4, var_1_8=2, var_1_9=1073741822] [L20] COND FALSE !(!cond) [L124] RET assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 2305843.009213691390e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1073741823, var_1_11=1073741823, var_1_12=201/4, var_1_13=49/5, var_1_14=5, var_1_15=7/2, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=2, var_1_6=3, var_1_7=4, var_1_8=2, var_1_9=1073741822] [L125] var_1_15 = __VERIFIER_nondet_float() [L126] CALL assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 2305843.009213691390e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1073741823, var_1_11=1073741823, var_1_12=201/4, var_1_13=49/5, var_1_14=5, var_1_15=6, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=2, var_1_6=3, var_1_7=4, var_1_8=2, var_1_9=1073741822] [L20] COND FALSE !(!cond) [L126] RET assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 2305843.009213691390e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1073741823, var_1_11=1073741823, var_1_12=201/4, var_1_13=49/5, var_1_14=5, var_1_15=6, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=2, var_1_6=3, var_1_7=4, var_1_8=2, var_1_9=1073741822] [L127] var_1_18 = __VERIFIER_nondet_uchar() [L128] CALL assume_abort_if_not(var_1_18 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1073741823, var_1_11=1073741823, var_1_12=201/4, var_1_13=49/5, var_1_14=5, var_1_15=6, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=2, var_1_6=3, var_1_7=4, var_1_8=2, var_1_9=1073741822] [L20] COND FALSE !(!cond) [L128] RET assume_abort_if_not(var_1_18 >= 1) VAL [isInitial=1, var_1_10=1073741823, var_1_11=1073741823, var_1_12=201/4, var_1_13=49/5, var_1_14=5, var_1_15=6, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=2, var_1_6=3, var_1_7=4, var_1_8=2, var_1_9=1073741822] [L129] CALL assume_abort_if_not(var_1_18 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1073741823, var_1_11=1073741823, var_1_12=201/4, var_1_13=49/5, var_1_14=5, var_1_15=6, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=2, var_1_6=3, var_1_7=4, var_1_8=2, var_1_9=1073741822] [L20] COND FALSE !(!cond) [L129] RET assume_abort_if_not(var_1_18 <= 1) VAL [isInitial=1, var_1_10=1073741823, var_1_11=1073741823, var_1_12=201/4, var_1_13=49/5, var_1_14=5, var_1_15=6, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=401/4, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=2, var_1_6=3, var_1_7=4, var_1_8=2, var_1_9=1073741822] [L142] RET updateVariables() [L143] CALL step() [L82] CALL functionized0(var_1_7, 4.125) [L47] COND FALSE !(\read(var_1_2)) [L54] var_1_1 = var_1_5 [L82] RET functionized0(var_1_7, 4.125) [L83] var_1_8 = (((var_1_9 + var_1_10) - var_1_3) - (var_1_11 - ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))))) [L84] COND TRUE ((((var_1_3) < (var_1_9)) ? (var_1_3) : (var_1_9))) >= (var_1_4 - var_1_11) [L85] var_1_12 = var_1_7 [L87] CALL functionized1(var_1_8, var_1_15, var_1_14) [L58] COND TRUE functionized1_localFunctionVar0 < var_1_11 [L59] var_1_13 = ((7.3868261718112563E18f - (functionized1_localFunctionVar2 + functionized1_localFunctionVar1)) - 5.4f) [L87] RET functionized1(var_1_8, var_1_15, var_1_14) [L88] CALL functionized2(var_1_6, var_1_5, var_1_13) [L65] COND TRUE (((((- var_1_15)) > ((functionized2_localFunctionVar2 * functionized2_localFunctionVar0))) ? ((- var_1_15)) : ((functionized2_localFunctionVar2 * functionized2_localFunctionVar0)))) < functionized2_localFunctionVar1 [L66] COND TRUE var_1_11 != ((((var_1_8) < (var_1_10)) ? (var_1_8) : (var_1_10))) [L67] COND FALSE !(\read(var_1_2)) [L88] RET functionized2(var_1_6, var_1_5, var_1_13) [L89] CALL functionized3(var_1_16, var_1_8, var_1_18, var_1_9) [L74] var_1_17 = (((var_1_3 * functionized3_localFunctionVar3) >= ((((functionized3_localFunctionVar0) > (functionized3_localFunctionVar1)) ? (functionized3_localFunctionVar0) : (functionized3_localFunctionVar1)))) || functionized3_localFunctionVar2) [L89] RET functionized3(var_1_16, var_1_8, var_1_18, var_1_9) [L90] COND TRUE \read(var_1_17) [L91] CALL, EXPR functionized4() [L77] return (((((var_1_5) < 0 ) ? -(var_1_5) : (var_1_5))) * (var_1_13 * 63.375)); [L91] RET, EXPR functionized4() [L91] COND FALSE !(var_1_7 > functionized4()) [L143] RET step() [L144] CALL, EXPR property() [L134-L135] return ((((((var_1_2 ? ((var_1_3 >= var_1_4) ? (var_1_1 == ((double) (var_1_5 + var_1_6))) : (var_1_1 == ((double) (4.125 - var_1_7)))) : (var_1_1 == ((double) var_1_5))) && (var_1_8 == ((signed long int) (((var_1_9 + var_1_10) - var_1_3) - (var_1_11 - ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4)))))))) && ((((((var_1_3) < (var_1_9)) ? (var_1_3) : (var_1_9))) >= (var_1_4 - var_1_11)) ? (var_1_12 == ((float) var_1_7)) : 1)) && ((var_1_8 < var_1_11) ? (var_1_13 == ((float) ((7.3868261718112563E18f - (var_1_14 + var_1_15)) - 5.4f))) : (var_1_13 == ((float) (var_1_15 + ((((var_1_14) < (var_1_5)) ? (var_1_14) : (var_1_5)))))))) && (((((((- var_1_15)) > ((var_1_13 * var_1_6))) ? ((- var_1_15)) : ((var_1_13 * var_1_6)))) < var_1_5) ? ((var_1_11 != ((((var_1_8) < (var_1_10)) ? (var_1_8) : (var_1_10)))) ? (var_1_2 ? (var_1_16 == ((signed long int) var_1_3)) : 1) : 1) : 1)) && (var_1_17 == ((unsigned char) (((var_1_3 * var_1_9) >= ((((var_1_16) > (var_1_8)) ? (var_1_16) : (var_1_8)))) || var_1_18)))) && (var_1_17 ? ((var_1_7 > (((((var_1_5) < 0 ) ? -(var_1_5) : (var_1_5))) * (var_1_13 * 63.375))) ? (var_1_19 == ((unsigned char) var_1_18)) : 1) : (var_1_19 == ((unsigned char) var_1_18))) ; [L144] RET, EXPR property() [L144] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=1073741823, var_1_11=1073741823, var_1_12=4, var_1_14=5, var_1_15=6, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=2, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=2, var_1_6=3, var_1_7=4, var_1_8=1073741822, var_1_9=1073741822] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=1073741823, var_1_11=1073741823, var_1_12=4, var_1_14=5, var_1_15=6, var_1_16=-500, var_1_17=1, var_1_18=1, var_1_19=0, var_1_1=2, var_1_2=0, var_1_3=0, var_1_4=0, var_1_5=2, var_1_6=3, var_1_7=4, var_1_8=1073741822, var_1_9=1073741822] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 19, 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=40occurred 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 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 [2023-11-12 00:14:54,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_functionizing_file-6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX --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 758300177d1b355ef883590ed584633de094bad912a987cbd68951ea58e51ff9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:14:57,044 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:14:57,175 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-12 00:14:57,183 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:14:57,184 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:14:57,229 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:14:57,230 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:14:57,230 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:14:57,231 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:14:57,236 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:14:57,236 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:14:57,237 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:14:57,237 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:14:57,239 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:14:57,239 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:14:57,240 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:14:57,241 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:14:57,241 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:14:57,242 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:14:57,243 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:14:57,243 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:14:57,243 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:14:57,244 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:14:57,244 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:14:57,245 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:14:57,245 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:14:57,245 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:14:57,246 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:14:57,246 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:14:57,246 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:14:57,248 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:14:57,248 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:14:57,248 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:14:57,249 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:14:57,249 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:14:57,249 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:14:57,249 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:14:57,250 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:14:57,250 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:14:57,251 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:14:57,251 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:14:57,251 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:14:57,251 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_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 758300177d1b355ef883590ed584633de094bad912a987cbd68951ea58e51ff9 [2023-11-12 00:14:57,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:14:57,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:14:57,728 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:14:57,729 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:14:57,730 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:14:57,731 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_functionizing_file-6.i [2023-11-12 00:15:01,207 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:15:01,462 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:15:01,462 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_functionizing_file-6.i [2023-11-12 00:15:01,474 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/data/74c8f8a8b/0db660b4d92a4b73b6c5542574c56194/FLAG4e7eebf7c [2023-11-12 00:15:01,498 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/data/74c8f8a8b/0db660b4d92a4b73b6c5542574c56194 [2023-11-12 00:15:01,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:15:01,503 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:15:01,504 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:15:01,505 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:15:01,510 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:15:01,511 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:15:01" (1/1) ... [2023-11-12 00:15:01,512 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a85d136 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:01, skipping insertion in model container [2023-11-12 00:15:01,513 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:15:01" (1/1) ... [2023-11-12 00:15:01,565 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:15:01,783 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_7d6add6d-a472-4c36-9cfd-bce16ae93e55/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_functionizing_file-6.i[919,932] [2023-11-12 00:15:01,891 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:15:01,917 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:15:01,938 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_7d6add6d-a472-4c36-9cfd-bce16ae93e55/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_functionizing_file-6.i[919,932] [2023-11-12 00:15:01,985 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:15:02,013 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:15:02,013 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:02 WrapperNode [2023-11-12 00:15:02,014 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:15:02,015 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:15:02,016 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:15:02,016 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:15:02,024 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:02" (1/1) ... [2023-11-12 00:15:02,053 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:02" (1/1) ... [2023-11-12 00:15:02,124 INFO L138 Inliner]: procedures = 32, calls = 37, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 149 [2023-11-12 00:15:02,124 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:15:02,125 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:15:02,125 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:15:02,126 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:15:02,141 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:02" (1/1) ... [2023-11-12 00:15:02,142 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:02" (1/1) ... [2023-11-12 00:15:02,179 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:02" (1/1) ... [2023-11-12 00:15:02,180 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:02" (1/1) ... [2023-11-12 00:15:02,203 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:02" (1/1) ... [2023-11-12 00:15:02,219 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:02" (1/1) ... [2023-11-12 00:15:02,222 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:02" (1/1) ... [2023-11-12 00:15:02,224 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:02" (1/1) ... [2023-11-12 00:15:02,229 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:15:02,241 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:15:02,242 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:15:02,242 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:15:02,243 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:02" (1/1) ... [2023-11-12 00:15:02,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:15:02,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:15:02,293 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:15:02,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:15:02,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:15:02,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:15:02,341 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:15:02,342 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:15:02,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:15:02,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:15:02,471 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:15:02,474 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:15:13,818 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:15:13,826 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:15:13,827 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:15:13,829 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:15:13 BoogieIcfgContainer [2023-11-12 00:15:13,830 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:15:13,833 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:15:13,833 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:15:13,836 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:15:13,837 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:15:01" (1/3) ... [2023-11-12 00:15:13,838 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@279721e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:15:13, skipping insertion in model container [2023-11-12 00:15:13,838 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:15:02" (2/3) ... [2023-11-12 00:15:13,839 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@279721e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:15:13, skipping insertion in model container [2023-11-12 00:15:13,839 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:15:13" (3/3) ... [2023-11-12 00:15:13,841 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_functionizing_file-6.i [2023-11-12 00:15:13,859 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:15:13,860 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:15:13,915 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:15:13,921 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;@140d0056, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:15:13,922 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:15:13,927 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 43 states have (on average 1.3255813953488371) internal successors, (57), 44 states have internal predecessors, (57), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-12 00:15:13,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-11-12 00:15:13,943 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:15:13,944 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:15:13,945 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:15:13,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:15:13,951 INFO L85 PathProgramCache]: Analyzing trace with hash -812521492, now seen corresponding path program 1 times [2023-11-12 00:15:13,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:15:13,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1277474447] [2023-11-12 00:15:13,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:15:13,968 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 [2023-11-12 00:15:13,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:15:13,969 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:15:14,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:15:15,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:15:15,518 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 00:15:15,531 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:15:15,580 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2023-11-12 00:15:15,581 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:15:15,582 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:15:15,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1277474447] [2023-11-12 00:15:15,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1277474447] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:15:15,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:15:15,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:15:15,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575274957] [2023-11-12 00:15:15,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:15:15,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:15:15,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:15:15,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:15:15,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:15:15,626 INFO L87 Difference]: Start difference. First operand has 65 states, 43 states have (on average 1.3255813953488371) internal successors, (57), 44 states have internal predecessors, (57), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-12 00:15:15,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:15:15,679 INFO L93 Difference]: Finished difference Result 123 states and 203 transitions. [2023-11-12 00:15:15,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:15:15,682 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 126 [2023-11-12 00:15:15,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:15:15,693 INFO L225 Difference]: With dead ends: 123 [2023-11-12 00:15:15,693 INFO L226 Difference]: Without dead ends: 61 [2023-11-12 00:15:15,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:15:15,705 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:15:15,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:15:15,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-11-12 00:15:15,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2023-11-12 00:15:15,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 40 states have (on average 1.25) internal successors, (50), 40 states have internal predecessors, (50), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-12 00:15:15,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 88 transitions. [2023-11-12 00:15:15,756 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 88 transitions. Word has length 126 [2023-11-12 00:15:15,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:15:15,756 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 88 transitions. [2023-11-12 00:15:15,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-12 00:15:15,757 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 88 transitions. [2023-11-12 00:15:15,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-11-12 00:15:15,761 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:15:15,761 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:15:15,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:15:15,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:15:15,984 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:15:15,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:15:15,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1984651882, now seen corresponding path program 1 times [2023-11-12 00:15:15,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:15:15,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [976515448] [2023-11-12 00:15:15,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:15:15,986 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 [2023-11-12 00:15:15,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:15:15,989 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:15:15,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:15:17,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:15:17,369 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-12 00:15:17,382 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:15:18,523 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-11-12 00:15:18,524 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:15:18,524 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:15:18,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [976515448] [2023-11-12 00:15:18,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [976515448] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:15:18,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:15:18,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 00:15:18,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929215567] [2023-11-12 00:15:18,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:15:18,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 00:15:18,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:15:18,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 00:15:18,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-12 00:15:18,530 INFO L87 Difference]: Start difference. First operand 61 states and 88 transitions. Second operand has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-12 00:15:22,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:15:24,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:15:26,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:15:28,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:15:30,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:15:33,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:15:35,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:15:37,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:15:39,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:15:41,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:15:41,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:15:41,143 INFO L93 Difference]: Finished difference Result 129 states and 181 transitions. [2023-11-12 00:15:41,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-12 00:15:41,301 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 126 [2023-11-12 00:15:41,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:15:41,307 INFO L225 Difference]: With dead ends: 129 [2023-11-12 00:15:41,308 INFO L226 Difference]: Without dead ends: 71 [2023-11-12 00:15:41,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2023-11-12 00:15:41,311 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 141 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 117 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.9s IncrementalHoareTripleChecker+Time [2023-11-12 00:15:41,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 151 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 107 Invalid, 10 Unknown, 0 Unchecked, 21.9s Time] [2023-11-12 00:15:41,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-11-12 00:15:41,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 69. [2023-11-12 00:15:41,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 46 states have (on average 1.1956521739130435) internal successors, (55), 46 states have internal predecessors, (55), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-12 00:15:41,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 93 transitions. [2023-11-12 00:15:41,339 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 93 transitions. Word has length 126 [2023-11-12 00:15:41,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:15:41,341 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 93 transitions. [2023-11-12 00:15:41,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-12 00:15:41,341 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 93 transitions. [2023-11-12 00:15:41,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-11-12 00:15:41,347 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:15:41,348 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:15:41,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:15:41,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:15:41,549 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:15:41,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:15:41,550 INFO L85 PathProgramCache]: Analyzing trace with hash -294876317, now seen corresponding path program 1 times [2023-11-12 00:15:41,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:15:41,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [349752875] [2023-11-12 00:15:41,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:15:41,551 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 [2023-11-12 00:15:41,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:15:41,553 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:15:41,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:15:42,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:15:42,914 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 00:15:42,920 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:15:44,627 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 437 proven. 39 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2023-11-12 00:15:44,634 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:15:45,641 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:15:45,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [349752875] [2023-11-12 00:15:45,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [349752875] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:15:45,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [586736269] [2023-11-12 00:15:45,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:15:45,642 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-12 00:15:45,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/cvc4 [2023-11-12 00:15:45,649 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-12 00:15:45,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d6add6d-a472-4c36-9cfd-bce16ae93e55/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-12 00:15:49,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:15:49,998 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-12 00:15:50,006 INFO L285 TraceCheckSpWp]: Computing forward predicates...