./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-71.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_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/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_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-71.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/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_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/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 b7769f6e88057884e9f756ce4db3366a3e684d2e94a6b3544a7e6cd1c830e602 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:57:23,484 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:57:23,597 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:57:23,605 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:57:23,605 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:57:23,651 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:57:23,652 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:57:23,652 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:57:23,653 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:57:23,659 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:57:23,659 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:57:23,661 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:57:23,661 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:57:23,663 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:57:23,664 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:57:23,664 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:57:23,665 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:57:23,665 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:57:23,666 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:57:23,666 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:57:23,667 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:57:23,667 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:57:23,669 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:57:23,669 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:57:23,670 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:57:23,670 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:57:23,670 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:57:23,671 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:57:23,671 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:57:23,672 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:57:23,673 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:57:23,674 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:57:23,674 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:57:23,674 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:57:23,675 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:57:23,675 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:57:23,675 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:57:23,676 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:57:23,676 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:57:23,676 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:57:23,676 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:57:23,677 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:57:23,677 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:57:23,678 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:57:23,678 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:57:23,679 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_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7769f6e88057884e9f756ce4db3366a3e684d2e94a6b3544a7e6cd1c830e602 [2023-11-12 00:57:24,039 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:57:24,083 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:57:24,086 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:57:24,088 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:57:24,089 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:57:24,091 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-71.i [2023-11-12 00:57:27,339 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:57:27,618 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:57:27,618 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-71.i [2023-11-12 00:57:27,627 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/bin/utaipan-verify-NcY6lQBIFX/data/3ef60c8a2/0b61acbf050d4f6c89b6e87706d43a30/FLAG3b15f977b [2023-11-12 00:57:27,641 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/bin/utaipan-verify-NcY6lQBIFX/data/3ef60c8a2/0b61acbf050d4f6c89b6e87706d43a30 [2023-11-12 00:57:27,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:57:27,645 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:57:27,647 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:57:27,647 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:57:27,652 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:57:27,653 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:57:27" (1/1) ... [2023-11-12 00:57:27,654 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bd032d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:27, skipping insertion in model container [2023-11-12 00:57:27,654 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:57:27" (1/1) ... [2023-11-12 00:57:27,687 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:57:27,835 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_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-71.i[915,928] [2023-11-12 00:57:27,882 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:57:27,893 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:57:27,905 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_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-71.i[915,928] [2023-11-12 00:57:27,933 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:57:27,949 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:57:27,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:27 WrapperNode [2023-11-12 00:57:27,950 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:57:27,951 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:57:27,952 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:57:27,952 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:57:27,959 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:27" (1/1) ... [2023-11-12 00:57:27,969 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:27" (1/1) ... [2023-11-12 00:57:28,007 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 119 [2023-11-12 00:57:28,007 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:57:28,008 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:57:28,008 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:57:28,009 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:57:28,019 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:27" (1/1) ... [2023-11-12 00:57:28,019 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:27" (1/1) ... [2023-11-12 00:57:28,024 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:27" (1/1) ... [2023-11-12 00:57:28,024 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:27" (1/1) ... [2023-11-12 00:57:28,034 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:27" (1/1) ... [2023-11-12 00:57:28,038 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:27" (1/1) ... [2023-11-12 00:57:28,051 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:27" (1/1) ... [2023-11-12 00:57:28,053 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:27" (1/1) ... [2023-11-12 00:57:28,056 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:57:28,057 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:57:28,057 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:57:28,057 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:57:28,058 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:27" (1/1) ... [2023-11-12 00:57:28,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:57:28,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:57:28,110 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:57:28,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:57:28,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:57:28,157 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:57:28,157 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:57:28,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:57:28,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:57:28,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:57:28,284 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:57:28,286 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:57:28,695 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:57:28,860 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:57:28,860 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:57:28,863 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:57:28 BoogieIcfgContainer [2023-11-12 00:57:28,863 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:57:28,866 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:57:28,866 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:57:28,869 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:57:28,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:57:27" (1/3) ... [2023-11-12 00:57:28,870 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ee049ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:57:28, skipping insertion in model container [2023-11-12 00:57:28,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:27" (2/3) ... [2023-11-12 00:57:28,871 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ee049ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:57:28, skipping insertion in model container [2023-11-12 00:57:28,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:57:28" (3/3) ... [2023-11-12 00:57:28,872 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-71.i [2023-11-12 00:57:28,920 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:57:28,921 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:57:29,020 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:57:29,028 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;@6dbc8e66, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:57:29,028 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:57:29,033 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 00:57:29,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-12 00:57:29,043 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:57:29,044 INFO L195 NwaCegarLoop]: trace histogram [15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:57:29,045 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:57:29,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:57:29,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1137371799, now seen corresponding path program 1 times [2023-11-12 00:57:29,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:57:29,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864641338] [2023-11-12 00:57:29,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:57:29,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:57:29,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:57:29,468 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:57:29,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:57:29,710 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:57:29,713 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:57:29,715 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:57:29,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:57:29,722 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-12 00:57:29,728 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:57:29,824 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:57:29 BoogieIcfgContainer [2023-11-12 00:57:29,824 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:57:29,825 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:57:29,825 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:57:29,825 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:57:29,826 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:57:28" (3/4) ... [2023-11-12 00:57:29,829 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 00:57:29,831 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:57:29,832 INFO L158 Benchmark]: Toolchain (without parser) took 2186.41ms. Allocated memory was 151.0MB in the beginning and 186.6MB in the end (delta: 35.7MB). Free memory was 110.2MB in the beginning and 126.7MB in the end (delta: -16.5MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2023-11-12 00:57:29,833 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 151.0MB. Free memory is still 122.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:57:29,833 INFO L158 Benchmark]: CACSL2BoogieTranslator took 303.99ms. Allocated memory is still 151.0MB. Free memory was 110.2MB in the beginning and 97.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 00:57:29,834 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.31ms. Allocated memory is still 151.0MB. Free memory was 97.6MB in the beginning and 94.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:57:29,835 INFO L158 Benchmark]: Boogie Preprocessor took 48.23ms. Allocated memory is still 151.0MB. Free memory was 94.6MB in the beginning and 93.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:57:29,835 INFO L158 Benchmark]: RCFGBuilder took 805.98ms. Allocated memory is still 151.0MB. Free memory was 93.0MB in the beginning and 60.4MB in the end (delta: 32.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-12 00:57:29,836 INFO L158 Benchmark]: TraceAbstraction took 958.56ms. Allocated memory was 151.0MB in the beginning and 186.6MB in the end (delta: 35.7MB). Free memory was 59.4MB in the beginning and 126.7MB in the end (delta: -67.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:57:29,836 INFO L158 Benchmark]: Witness Printer took 6.06ms. Allocated memory is still 186.6MB. Free memory is still 126.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:57:29,840 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 151.0MB. Free memory is still 122.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 303.99ms. Allocated memory is still 151.0MB. Free memory was 110.2MB in the beginning and 97.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.31ms. Allocated memory is still 151.0MB. Free memory was 97.6MB in the beginning and 94.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.23ms. Allocated memory is still 151.0MB. Free memory was 94.6MB in the beginning and 93.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 805.98ms. Allocated memory is still 151.0MB. Free memory was 93.0MB in the beginning and 60.4MB in the end (delta: 32.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 958.56ms. Allocated memory was 151.0MB in the beginning and 186.6MB in the end (delta: 35.7MB). Free memory was 59.4MB in the beginning and 126.7MB in the end (delta: -67.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.06ms. Allocated memory is still 186.6MB. Free memory is still 126.7MB. 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 95, overapproximation of shiftRight at line 56, overapproximation of someBinaryArithmeticFLOAToperation at line 58. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 16; [L23] unsigned char var_1_2 = 0; [L24] unsigned char var_1_3 = 8; [L25] unsigned char var_1_4 = 8; [L26] unsigned char var_1_5 = 32; [L27] unsigned char var_1_6 = 0; [L28] unsigned char var_1_7 = 1; [L29] float var_1_8 = 1.8; [L30] float var_1_9 = 9999999999999.75; [L31] float var_1_10 = 8.75; [L32] float var_1_11 = 255.75; [L33] unsigned short int var_1_12 = 10; [L34] unsigned char var_1_13 = 2; [L35] unsigned short int var_1_14 = 4; [L99] isInitial = 1 [L100] FCALL initially() [L101] COND TRUE 1 [L102] FCALL updateLastVariables() [L103] CALL updateVariables() [L67] var_1_2 = __VERIFIER_nondet_uchar() [L68] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_3=8, var_1_4=8, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_3=8, var_1_4=8, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L69] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=0, var_1_3=8, var_1_4=8, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=0, var_1_3=8, var_1_4=8, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L70] var_1_3 = __VERIFIER_nondet_uchar() [L71] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=0, var_1_3=127, var_1_4=8, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=0, var_1_3=127, var_1_4=8, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L72] CALL assume_abort_if_not(var_1_3 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=0, var_1_3=127, var_1_4=8, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_3 <= 127) VAL [isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=0, var_1_3=127, var_1_4=8, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L73] var_1_4 = __VERIFIER_nondet_uchar() [L74] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=0, var_1_3=127, var_1_4=127, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=0, var_1_3=127, var_1_4=127, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L75] CALL assume_abort_if_not(var_1_4 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=0, var_1_3=127, var_1_4=127, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_4 <= 127) VAL [isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=0, var_1_3=127, var_1_4=127, var_1_5=32, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L76] var_1_5 = __VERIFIER_nondet_uchar() [L77] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=0, var_1_3=127, var_1_4=127, var_1_5=126, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=0, var_1_3=127, var_1_4=127, var_1_5=126, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L78] CALL assume_abort_if_not(var_1_5 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=0, var_1_3=127, var_1_4=127, var_1_5=126, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_5 <= 254) VAL [isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=0, var_1_3=127, var_1_4=127, var_1_5=126, var_1_6=0, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L79] var_1_6 = __VERIFIER_nondet_uchar() [L80] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=0, var_1_3=127, var_1_4=127, var_1_5=126, var_1_6=1, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=0, var_1_3=127, var_1_4=127, var_1_5=126, var_1_6=1, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L81] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=0, var_1_3=127, var_1_4=127, var_1_5=126, var_1_6=1, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=0, var_1_3=127, var_1_4=127, var_1_5=126, var_1_6=1, var_1_7=1, var_1_8=9/5, var_1_9=39999999999999/4] [L82] var_1_7 = __VERIFIER_nondet_uchar() [L83] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=0, var_1_3=127, var_1_4=127, var_1_5=126, var_1_6=1, var_1_7=0, var_1_8=9/5, var_1_9=39999999999999/4] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=0, var_1_3=127, var_1_4=127, var_1_5=126, var_1_6=1, var_1_7=0, var_1_8=9/5, var_1_9=39999999999999/4] [L84] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=0, var_1_3=127, var_1_4=127, var_1_5=126, var_1_6=1, var_1_7=0, var_1_8=9/5, var_1_9=39999999999999/4] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=0, var_1_3=127, var_1_4=127, var_1_5=126, var_1_6=1, var_1_7=0, var_1_8=9/5, var_1_9=39999999999999/4] [L85] var_1_9 = __VERIFIER_nondet_float() [L86] CALL assume_abort_if_not((var_1_9 >= -461168.6018427382800e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 4611686.018427382800e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=0, var_1_3=127, var_1_4=127, var_1_5=126, var_1_6=1, var_1_7=0, var_1_8=9/5, var_1_9=10000000000005] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not((var_1_9 >= -461168.6018427382800e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 4611686.018427382800e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=35/4, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=0, var_1_3=127, var_1_4=127, var_1_5=126, var_1_6=1, var_1_7=0, var_1_8=9/5, var_1_9=10000000000005] [L87] var_1_10 = __VERIFIER_nondet_float() [L88] CALL assume_abort_if_not((var_1_10 >= -461168.6018427382800e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427382800e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=10000000000006, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=0, var_1_3=127, var_1_4=127, var_1_5=126, var_1_6=1, var_1_7=0, var_1_8=9/5, var_1_9=10000000000005] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not((var_1_10 >= -461168.6018427382800e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427382800e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=10000000000006, var_1_11=1023/4, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=0, var_1_3=127, var_1_4=127, var_1_5=126, var_1_6=1, var_1_7=0, var_1_8=9/5, var_1_9=10000000000005] [L89] var_1_11 = __VERIFIER_nondet_float() [L90] CALL assume_abort_if_not((var_1_11 >= -461168.6018427382800e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 4611686.018427382800e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=10000000000006, var_1_11=10000000000004, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=0, var_1_3=127, var_1_4=127, var_1_5=126, var_1_6=1, var_1_7=0, var_1_8=9/5, var_1_9=10000000000005] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not((var_1_11 >= -461168.6018427382800e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 4611686.018427382800e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=10000000000006, var_1_11=10000000000004, var_1_12=10, var_1_13=2, var_1_14=4, var_1_1=16, var_1_2=0, var_1_3=127, var_1_4=127, var_1_5=126, var_1_6=1, var_1_7=0, var_1_8=9/5, var_1_9=10000000000005] [L103] RET updateVariables() [L104] CALL step() [L39] unsigned char stepLocal_0 = var_1_6; [L40] COND FALSE !(\read(var_1_2)) [L43] COND FALSE !(stepLocal_0 && var_1_7) [L46] COND FALSE !(\read(var_1_7)) [L49] var_1_1 = var_1_3 [L53] var_1_12 = 100 [L54] var_1_13 = var_1_3 [L55] var_1_14 = var_1_3 [L56] EXPR var_1_13 >> var_1_3 [L56] COND TRUE (var_1_13 >> var_1_3) <= var_1_5 [L57] COND FALSE !((25 > var_1_13) && var_1_7) [L60] var_1_8 = var_1_9 [L104] RET step() [L105] CALL, EXPR property() [L95] EXPR (var_1_2 ? (var_1_1 == ((unsigned char) (((((((((var_1_3 + var_1_4)) > (50)) ? ((var_1_3 + var_1_4)) : (50)))) > (var_1_5)) ? ((((((var_1_3 + var_1_4)) > (50)) ? ((var_1_3 + var_1_4)) : (50)))) : (var_1_5))))) : ((var_1_6 && var_1_7) ? (var_1_1 == ((unsigned char) var_1_5)) : (var_1_7 ? (var_1_1 == ((unsigned char) var_1_5)) : (var_1_1 == ((unsigned char) var_1_3))))) && (((var_1_13 >> var_1_3) <= var_1_5) ? (((25 > var_1_13) && var_1_7) ? (var_1_8 == ((float) (var_1_9 + ((((var_1_10) > (var_1_11)) ? (var_1_10) : (var_1_11)))))) : (var_1_8 == ((float) var_1_9))) : (var_1_8 == ((float) var_1_9))) [L95] EXPR var_1_13 >> var_1_3 [L95] EXPR (var_1_2 ? (var_1_1 == ((unsigned char) (((((((((var_1_3 + var_1_4)) > (50)) ? ((var_1_3 + var_1_4)) : (50)))) > (var_1_5)) ? ((((((var_1_3 + var_1_4)) > (50)) ? ((var_1_3 + var_1_4)) : (50)))) : (var_1_5))))) : ((var_1_6 && var_1_7) ? (var_1_1 == ((unsigned char) var_1_5)) : (var_1_7 ? (var_1_1 == ((unsigned char) var_1_5)) : (var_1_1 == ((unsigned char) var_1_3))))) && (((var_1_13 >> var_1_3) <= var_1_5) ? (((25 > var_1_13) && var_1_7) ? (var_1_8 == ((float) (var_1_9 + ((((var_1_10) > (var_1_11)) ? (var_1_10) : (var_1_11)))))) : (var_1_8 == ((float) var_1_9))) : (var_1_8 == ((float) var_1_9))) [L95-L96] return ((((var_1_2 ? (var_1_1 == ((unsigned char) (((((((((var_1_3 + var_1_4)) > (50)) ? ((var_1_3 + var_1_4)) : (50)))) > (var_1_5)) ? ((((((var_1_3 + var_1_4)) > (50)) ? ((var_1_3 + var_1_4)) : (50)))) : (var_1_5))))) : ((var_1_6 && var_1_7) ? (var_1_1 == ((unsigned char) var_1_5)) : (var_1_7 ? (var_1_1 == ((unsigned char) var_1_5)) : (var_1_1 == ((unsigned char) var_1_3))))) && (((var_1_13 >> var_1_3) <= var_1_5) ? (((25 > var_1_13) && var_1_7) ? (var_1_8 == ((float) (var_1_9 + ((((var_1_10) > (var_1_11)) ? (var_1_10) : (var_1_11)))))) : (var_1_8 == ((float) var_1_9))) : (var_1_8 == ((float) var_1_9)))) && (var_1_12 == ((unsigned short int) 100))) && (var_1_13 == ((unsigned char) var_1_3))) && (var_1_14 == ((unsigned short int) var_1_3)) ; [L105] RET, EXPR property() [L105] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=10000000000006, var_1_11=10000000000004, var_1_12=100, var_1_13=127, var_1_14=127, var_1_1=127, var_1_2=0, var_1_3=127, var_1_4=127, var_1_5=126, var_1_6=1, var_1_7=0, var_1_8=10000000000005, var_1_9=10000000000005] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=10000000000006, var_1_11=10000000000004, var_1_12=100, var_1_13=127, var_1_14=127, var_1_1=127, var_1_2=0, var_1_3=127, var_1_4=127, var_1_5=126, var_1_6=1, var_1_7=0, var_1_8=10000000000005, var_1_9=10000000000005] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 15, 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=33occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 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 00:57:29,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/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_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/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_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-71.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/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_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/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 b7769f6e88057884e9f756ce4db3366a3e684d2e94a6b3544a7e6cd1c830e602 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:57:32,664 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:57:32,792 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-12 00:57:32,798 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:57:32,799 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:57:32,827 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:57:32,828 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:57:32,828 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:57:32,829 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:57:32,830 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:57:32,830 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:57:32,831 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:57:32,832 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:57:32,832 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:57:32,833 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:57:32,833 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:57:32,834 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:57:32,835 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:57:32,835 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:57:32,835 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:57:32,836 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:57:32,837 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:57:32,837 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:57:32,837 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:57:32,838 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:57:32,838 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:57:32,839 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:57:32,839 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:57:32,840 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:57:32,840 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:57:32,841 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:57:32,841 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:57:32,841 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:57:32,842 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:57:32,842 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:57:32,843 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:57:32,843 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:57:32,843 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:57:32,844 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:57:32,844 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:57:32,844 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:57:32,845 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:57:32,845 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_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7769f6e88057884e9f756ce4db3366a3e684d2e94a6b3544a7e6cd1c830e602 [2023-11-12 00:57:33,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:57:33,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:57:33,336 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:57:33,338 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:57:33,339 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:57:33,340 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-71.i [2023-11-12 00:57:36,740 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:57:36,975 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:57:36,976 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-71.i [2023-11-12 00:57:36,986 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/bin/utaipan-verify-NcY6lQBIFX/data/7aa9b8843/6fd0357210694fbe84cf37a30e1ea2ca/FLAGe02e72dec [2023-11-12 00:57:37,004 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/bin/utaipan-verify-NcY6lQBIFX/data/7aa9b8843/6fd0357210694fbe84cf37a30e1ea2ca [2023-11-12 00:57:37,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:57:37,009 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:57:37,010 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:57:37,010 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:57:37,017 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:57:37,017 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:57:37" (1/1) ... [2023-11-12 00:57:37,019 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6faa53e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:37, skipping insertion in model container [2023-11-12 00:57:37,019 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:57:37" (1/1) ... [2023-11-12 00:57:37,049 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:57:37,238 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_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-71.i[915,928] [2023-11-12 00:57:37,282 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:57:37,319 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:57:37,340 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_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-71.i[915,928] [2023-11-12 00:57:37,387 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:57:37,420 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:57:37,420 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:37 WrapperNode [2023-11-12 00:57:37,420 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:57:37,422 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:57:37,422 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:57:37,422 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:57:37,429 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:37" (1/1) ... [2023-11-12 00:57:37,452 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:37" (1/1) ... [2023-11-12 00:57:37,499 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 106 [2023-11-12 00:57:37,501 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:57:37,502 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:57:37,502 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:57:37,502 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:57:37,512 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:37" (1/1) ... [2023-11-12 00:57:37,513 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:37" (1/1) ... [2023-11-12 00:57:37,521 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:37" (1/1) ... [2023-11-12 00:57:37,522 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:37" (1/1) ... [2023-11-12 00:57:37,537 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:37" (1/1) ... [2023-11-12 00:57:37,554 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:37" (1/1) ... [2023-11-12 00:57:37,557 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:37" (1/1) ... [2023-11-12 00:57:37,570 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:37" (1/1) ... [2023-11-12 00:57:37,574 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:57:37,575 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:57:37,575 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:57:37,575 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:57:37,576 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:37" (1/1) ... [2023-11-12 00:57:37,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:57:37,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:57:37,623 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:57:37,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:57:37,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:57:37,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:57:37,660 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:57:37,660 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:57:37,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:57:37,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:57:37,746 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:57:37,748 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:57:38,268 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:57:38,275 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:57:38,276 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:57:38,278 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:57:38 BoogieIcfgContainer [2023-11-12 00:57:38,278 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:57:38,281 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:57:38,281 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:57:38,285 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:57:38,285 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:57:37" (1/3) ... [2023-11-12 00:57:38,286 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e1c8306 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:57:38, skipping insertion in model container [2023-11-12 00:57:38,286 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:37" (2/3) ... [2023-11-12 00:57:38,286 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e1c8306 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:57:38, skipping insertion in model container [2023-11-12 00:57:38,287 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:57:38" (3/3) ... [2023-11-12 00:57:38,288 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-71.i [2023-11-12 00:57:38,309 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:57:38,309 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:57:38,409 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:57:38,417 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;@449c6f97, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:57:38,418 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:57:38,424 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 00:57:38,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-12 00:57:38,443 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:57:38,445 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:57:38,448 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:57:38,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:57:38,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1106668664, now seen corresponding path program 1 times [2023-11-12 00:57:38,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:57:38,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1101545416] [2023-11-12 00:57:38,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:57:38,475 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 00:57:38,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:57:38,506 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/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 00:57:38,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/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 00:57:38,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:57:38,819 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 00:57:38,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:57:39,237 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 152 proven. 33 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-12 00:57:39,237 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:57:39,400 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-12 00:57:39,401 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:57:39,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1101545416] [2023-11-12 00:57:39,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1101545416] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-12 00:57:39,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 00:57:39,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-11-12 00:57:39,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459521618] [2023-11-12 00:57:39,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:57:39,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:57:39,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:57:39,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:57:39,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-12 00:57:39,442 INFO L87 Difference]: Start difference. First operand has 49 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-12 00:57:39,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:57:39,660 INFO L93 Difference]: Finished difference Result 95 states and 155 transitions. [2023-11-12 00:57:39,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:57:39,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 96 [2023-11-12 00:57:39,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:57:39,675 INFO L225 Difference]: With dead ends: 95 [2023-11-12 00:57:39,675 INFO L226 Difference]: Without dead ends: 49 [2023-11-12 00:57:39,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-12 00:57:39,682 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 20 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:57:39,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 98 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 00:57:39,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-11-12 00:57:39,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-11-12 00:57:39,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 31 states have internal predecessors, (36), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 00:57:39,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 66 transitions. [2023-11-12 00:57:39,733 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 66 transitions. Word has length 96 [2023-11-12 00:57:39,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:57:39,734 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 66 transitions. [2023-11-12 00:57:39,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-12 00:57:39,735 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 66 transitions. [2023-11-12 00:57:39,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-12 00:57:39,740 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:57:39,740 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:57:39,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/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 00:57:39,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/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 00:57:39,953 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:57:39,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:57:39,954 INFO L85 PathProgramCache]: Analyzing trace with hash -286723047, now seen corresponding path program 1 times [2023-11-12 00:57:39,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:57:39,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1594690569] [2023-11-12 00:57:39,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:57:39,956 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 00:57:39,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:57:39,958 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/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 00:57:39,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e55c0a97-ef3b-4d42-a2d6-b1c34400df2d/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 00:57:40,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:57:40,187 INFO L262 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-12 00:57:40,195 INFO L285 TraceCheckSpWp]: Computing forward predicates...