./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-78.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_e72ad296-8a1d-479a-8d37-e09351572af4/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/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_e72ad296-8a1d-479a-8d37-e09351572af4/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-78.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/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_e72ad296-8a1d-479a-8d37-e09351572af4/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 2015d37ef3c12f799914a1d5573231d07895302eda54efaaedb57c9454a76b5a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 01:02:04,316 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 01:02:04,403 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 01:02:04,409 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 01:02:04,410 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 01:02:04,438 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 01:02:04,439 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 01:02:04,440 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 01:02:04,440 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 01:02:04,441 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 01:02:04,442 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 01:02:04,442 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 01:02:04,443 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 01:02:04,443 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 01:02:04,444 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 01:02:04,444 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 01:02:04,445 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 01:02:04,445 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 01:02:04,446 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 01:02:04,446 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 01:02:04,447 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 01:02:04,447 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 01:02:04,448 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 01:02:04,448 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 01:02:04,449 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 01:02:04,449 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 01:02:04,450 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 01:02:04,450 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 01:02:04,451 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 01:02:04,451 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 01:02:04,451 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 01:02:04,452 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 01:02:04,452 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 01:02:04,453 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 01:02:04,453 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 01:02:04,453 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 01:02:04,454 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:02:04,454 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 01:02:04,455 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 01:02:04,455 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 01:02:04,455 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 01:02:04,456 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 01:02:04,456 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 01:02:04,456 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 01:02:04,456 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 01:02:04,457 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_e72ad296-8a1d-479a-8d37-e09351572af4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2015d37ef3c12f799914a1d5573231d07895302eda54efaaedb57c9454a76b5a [2023-11-12 01:02:04,740 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 01:02:04,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 01:02:04,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 01:02:04,774 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 01:02:04,775 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 01:02:04,777 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-78.i [2023-11-12 01:02:07,838 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 01:02:08,160 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 01:02:08,161 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-78.i [2023-11-12 01:02:08,171 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/bin/utaipan-verify-NcY6lQBIFX/data/e4a4443b7/63b3064a000940d9b33c8d6fb5b0035e/FLAG62f04bed3 [2023-11-12 01:02:08,187 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/bin/utaipan-verify-NcY6lQBIFX/data/e4a4443b7/63b3064a000940d9b33c8d6fb5b0035e [2023-11-12 01:02:08,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 01:02:08,191 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 01:02:08,193 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 01:02:08,193 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 01:02:08,200 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 01:02:08,201 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:02:08" (1/1) ... [2023-11-12 01:02:08,202 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23caf9e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:08, skipping insertion in model container [2023-11-12 01:02:08,203 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:02:08" (1/1) ... [2023-11-12 01:02:08,237 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 01:02:08,392 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_e72ad296-8a1d-479a-8d37-e09351572af4/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-78.i[917,930] [2023-11-12 01:02:08,492 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:02:08,505 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 01:02:08,518 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_e72ad296-8a1d-479a-8d37-e09351572af4/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-78.i[917,930] [2023-11-12 01:02:08,577 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:02:08,596 INFO L206 MainTranslator]: Completed translation [2023-11-12 01:02:08,597 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:08 WrapperNode [2023-11-12 01:02:08,597 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 01:02:08,598 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 01:02:08,599 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 01:02:08,599 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 01:02:08,606 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:08" (1/1) ... [2023-11-12 01:02:08,619 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:08" (1/1) ... [2023-11-12 01:02:08,677 INFO L138 Inliner]: procedures = 26, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 199 [2023-11-12 01:02:08,678 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 01:02:08,679 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 01:02:08,679 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 01:02:08,679 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 01:02:08,689 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:08" (1/1) ... [2023-11-12 01:02:08,689 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:08" (1/1) ... [2023-11-12 01:02:08,695 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:08" (1/1) ... [2023-11-12 01:02:08,695 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:08" (1/1) ... [2023-11-12 01:02:08,716 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:08" (1/1) ... [2023-11-12 01:02:08,720 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:08" (1/1) ... [2023-11-12 01:02:08,724 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:08" (1/1) ... [2023-11-12 01:02:08,728 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:08" (1/1) ... [2023-11-12 01:02:08,735 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 01:02:08,736 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 01:02:08,737 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 01:02:08,737 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 01:02:08,738 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:08" (1/1) ... [2023-11-12 01:02:08,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:02:08,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:02:08,789 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 01:02:08,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 01:02:08,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 01:02:08,831 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 01:02:08,832 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 01:02:08,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 01:02:08,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 01:02:08,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 01:02:08,958 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 01:02:08,960 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 01:02:09,669 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 01:02:10,075 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 01:02:10,076 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 01:02:10,079 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:02:10 BoogieIcfgContainer [2023-11-12 01:02:10,079 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 01:02:10,084 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 01:02:10,084 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 01:02:10,087 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 01:02:10,088 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 01:02:08" (1/3) ... [2023-11-12 01:02:10,089 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39cb0d5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:02:10, skipping insertion in model container [2023-11-12 01:02:10,089 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:08" (2/3) ... [2023-11-12 01:02:10,092 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39cb0d5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:02:10, skipping insertion in model container [2023-11-12 01:02:10,092 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:02:10" (3/3) ... [2023-11-12 01:02:10,093 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-78.i [2023-11-12 01:02:10,114 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 01:02:10,115 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 01:02:10,183 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 01:02:10,212 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;@274974bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 01:02:10,212 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 01:02:10,229 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 20 states have internal predecessors, (22), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-12 01:02:10,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-12 01:02:10,256 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:02:10,257 INFO L195 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:10,257 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:02:10,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:02:10,263 INFO L85 PathProgramCache]: Analyzing trace with hash -908772333, now seen corresponding path program 1 times [2023-11-12 01:02:10,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:02:10,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014432345] [2023-11-12 01:02:10,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:10,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:02:10,511 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 01:02:10,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1532967604] [2023-11-12 01:02:10,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:10,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 01:02:10,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:02:10,516 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 01:02:10,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 01:02:10,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 01:02:10,870 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 01:02:11,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 01:02:11,285 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 01:02:11,288 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 01:02:11,289 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 01:02:11,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 01:02:11,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-12 01:02:11,503 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-12 01:02:11,508 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 01:02:11,589 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 01:02:11 BoogieIcfgContainer [2023-11-12 01:02:11,589 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 01:02:11,590 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 01:02:11,590 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 01:02:11,590 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 01:02:11,590 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:02:10" (3/4) ... [2023-11-12 01:02:11,592 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 01:02:11,594 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 01:02:11,595 INFO L158 Benchmark]: Toolchain (without parser) took 3403.37ms. Allocated memory was 136.3MB in the beginning and 169.9MB in the end (delta: 33.6MB). Free memory was 105.6MB in the beginning and 97.3MB in the end (delta: 8.2MB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. [2023-11-12 01:02:11,596 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 113.2MB. Free memory was 67.5MB in the beginning and 67.3MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 01:02:11,596 INFO L158 Benchmark]: CACSL2BoogieTranslator took 404.69ms. Allocated memory is still 136.3MB. Free memory was 105.6MB in the beginning and 90.4MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-12 01:02:11,597 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.65ms. Allocated memory is still 136.3MB. Free memory was 90.4MB in the beginning and 84.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-12 01:02:11,598 INFO L158 Benchmark]: Boogie Preprocessor took 57.04ms. Allocated memory is still 136.3MB. Free memory was 84.1MB in the beginning and 81.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 01:02:11,598 INFO L158 Benchmark]: RCFGBuilder took 1342.59ms. Allocated memory was 136.3MB in the beginning and 169.9MB in the end (delta: 33.6MB). Free memory was 81.5MB in the beginning and 80.9MB in the end (delta: 640.5kB). Peak memory consumption was 42.2MB. Max. memory is 16.1GB. [2023-11-12 01:02:11,599 INFO L158 Benchmark]: TraceAbstraction took 1505.53ms. Allocated memory is still 169.9MB. Free memory was 80.9MB in the beginning and 97.3MB in the end (delta: -16.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 01:02:11,599 INFO L158 Benchmark]: Witness Printer took 4.27ms. Allocated memory is still 169.9MB. Free memory is still 97.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 01:02:11,603 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 113.2MB. Free memory was 67.5MB in the beginning and 67.3MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 404.69ms. Allocated memory is still 136.3MB. Free memory was 105.6MB in the beginning and 90.4MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.65ms. Allocated memory is still 136.3MB. Free memory was 90.4MB in the beginning and 84.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.04ms. Allocated memory is still 136.3MB. Free memory was 84.1MB in the beginning and 81.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1342.59ms. Allocated memory was 136.3MB in the beginning and 169.9MB in the end (delta: 33.6MB). Free memory was 81.5MB in the beginning and 80.9MB in the end (delta: 640.5kB). Peak memory consumption was 42.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1505.53ms. Allocated memory is still 169.9MB. Free memory was 80.9MB in the beginning and 97.3MB in the end (delta: -16.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.27ms. Allocated memory is still 169.9MB. Free memory is still 97.3MB. 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 bitwiseOr at line 51, overapproximation of someBinaryArithmeticDOUBLEoperation at line 61, overapproximation of bitwiseAnd at line 73, overapproximation of someBinaryDOUBLEComparisonOperation at line 63. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = -4; [L23] signed long int var_1_2 = 0; [L24] unsigned char var_1_3 = 64; [L25] unsigned char var_1_4 = 0; [L26] unsigned char var_1_5 = 2; [L27] unsigned short int var_1_6 = 10; [L28] unsigned short int var_1_7 = 8; [L29] double var_1_8 = 1.875; [L30] signed long int var_1_9 = -4; [L31] double var_1_10 = 63.5; [L32] double var_1_11 = 255.375; [L33] double var_1_12 = 999999999.525; [L34] double var_1_13 = 63.75; [L35] double var_1_14 = 0.625; [L36] unsigned short int var_1_15 = 5; [L37] signed char var_1_16 = 4; [L38] signed char var_1_17 = 0; [L39] signed char var_1_18 = -2; [L40] signed char var_1_19 = 1; [L41] unsigned short int var_1_20 = 50; [L42] unsigned short int var_1_21 = 0; [L121] isInitial = 1 [L122] FCALL initially() [L123] COND TRUE 1 [L124] FCALL updateLastVariables() [L125] CALL updateVariables() [L78] var_1_2 = __VERIFIER_nondet_long() [L79] CALL assume_abort_if_not(var_1_2 >= -2147483646) VAL [\old(cond)=1, isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=0, var_1_5=2, var_1_6=10, var_1_7=8, var_1_8=15/8, var_1_9=-4] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_2 >= -2147483646) VAL [isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=0, var_1_5=2, var_1_6=10, var_1_7=8, var_1_8=15/8, var_1_9=-4] [L80] CALL assume_abort_if_not(var_1_2 <= 2147483646) VAL [\old(cond)=1, isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=0, var_1_5=2, var_1_6=10, var_1_7=8, var_1_8=15/8, var_1_9=-4] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_2 <= 2147483646) VAL [isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=0, var_1_5=2, var_1_6=10, var_1_7=8, var_1_8=15/8, var_1_9=-4] [L81] var_1_4 = __VERIFIER_nondet_uchar() [L82] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=2, var_1_6=10, var_1_7=8, var_1_8=15/8, var_1_9=-4] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=2, var_1_6=10, var_1_7=8, var_1_8=15/8, var_1_9=-4] [L83] CALL assume_abort_if_not(var_1_4 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=2, var_1_6=10, var_1_7=8, var_1_8=15/8, var_1_9=-4] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_4 <= 254) VAL [isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=2, var_1_6=10, var_1_7=8, var_1_8=15/8, var_1_9=-4] [L84] var_1_5 = __VERIFIER_nondet_uchar() [L85] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=106, var_1_6=10, var_1_7=8, var_1_8=15/8, var_1_9=-4] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=106, var_1_6=10, var_1_7=8, var_1_8=15/8, var_1_9=-4] [L86] CALL assume_abort_if_not(var_1_5 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=106, var_1_6=10, var_1_7=8, var_1_8=15/8, var_1_9=-4] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_5 <= 254) VAL [isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=106, var_1_6=10, var_1_7=8, var_1_8=15/8, var_1_9=-4] [L87] var_1_7 = __VERIFIER_nondet_ushort() [L88] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=106, var_1_6=10, var_1_7=190, var_1_8=15/8, var_1_9=-4] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=106, var_1_6=10, var_1_7=190, var_1_8=15/8, var_1_9=-4] [L89] CALL assume_abort_if_not(var_1_7 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=106, var_1_6=10, var_1_7=190, var_1_8=15/8, var_1_9=-4] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_7 <= 32767) VAL [isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=106, var_1_6=10, var_1_7=190, var_1_8=15/8, var_1_9=-4] [L90] var_1_9 = __VERIFIER_nondet_long() [L91] CALL assume_abort_if_not(var_1_9 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=106, var_1_6=10, var_1_7=190, var_1_8=15/8, var_1_9=107] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_9 >= -2147483648) VAL [isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=106, var_1_6=10, var_1_7=190, var_1_8=15/8, var_1_9=107] [L92] CALL assume_abort_if_not(var_1_9 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=106, var_1_6=10, var_1_7=190, var_1_8=15/8, var_1_9=107] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_9 <= 2147483647) VAL [isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=106, var_1_6=10, var_1_7=190, var_1_8=15/8, var_1_9=107] [L93] CALL assume_abort_if_not(var_1_9 != 0) VAL [\old(cond)=1, isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=106, var_1_6=10, var_1_7=190, var_1_8=15/8, var_1_9=107] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not(var_1_9 != 0) VAL [isInitial=1, var_1_10=127/2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=106, var_1_6=10, var_1_7=190, var_1_8=15/8, var_1_9=107] [L94] var_1_10 = __VERIFIER_nondet_double() [L95] CALL assume_abort_if_not((var_1_10 >= 0.0F && 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=2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=106, var_1_6=10, var_1_7=190, var_1_8=15/8, var_1_9=107] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not((var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427382800e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=2, var_1_11=2043/8, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=106, var_1_6=10, var_1_7=190, var_1_8=15/8, var_1_9=107] [L96] var_1_11 = __VERIFIER_nondet_double() [L97] CALL assume_abort_if_not((var_1_11 >= 0.0F && 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=2, var_1_11=3, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=106, var_1_6=10, var_1_7=190, var_1_8=15/8, var_1_9=107] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not((var_1_11 >= 0.0F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 4611686.018427382800e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=2, var_1_11=3, var_1_12=39999999981/40, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=106, var_1_6=10, var_1_7=190, var_1_8=15/8, var_1_9=107] [L98] var_1_12 = __VERIFIER_nondet_double() [L99] CALL assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 4611686.018427382800e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=106, var_1_6=10, var_1_7=190, var_1_8=15/8, var_1_9=107] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 4611686.018427382800e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=255/4, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=106, var_1_6=10, var_1_7=190, var_1_8=15/8, var_1_9=107] [L100] var_1_13 = __VERIFIER_nondet_double() [L101] CALL assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=5, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=106, var_1_6=10, var_1_7=190, var_1_8=15/8, var_1_9=107] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=5, var_1_14=5/8, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=106, var_1_6=10, var_1_7=190, var_1_8=15/8, var_1_9=107] [L102] var_1_14 = __VERIFIER_nondet_double() [L103] CALL assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=5, var_1_14=6, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=106, var_1_6=10, var_1_7=190, var_1_8=15/8, var_1_9=107] [L20] COND FALSE !(!cond) [L103] RET assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=5, var_1_14=6, var_1_15=5, var_1_16=4, var_1_17=0, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=106, var_1_6=10, var_1_7=190, var_1_8=15/8, var_1_9=107] [L104] var_1_17 = __VERIFIER_nondet_char() [L105] CALL assume_abort_if_not(var_1_17 >= -63) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=5, var_1_14=6, var_1_15=5, var_1_16=4, var_1_17=-4, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=106, var_1_6=10, var_1_7=190, var_1_8=15/8, var_1_9=107] [L20] COND FALSE !(!cond) [L105] RET assume_abort_if_not(var_1_17 >= -63) VAL [isInitial=1, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=5, var_1_14=6, var_1_15=5, var_1_16=4, var_1_17=-4, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=106, var_1_6=10, var_1_7=190, var_1_8=15/8, var_1_9=107] [L106] CALL assume_abort_if_not(var_1_17 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=5, var_1_14=6, var_1_15=5, var_1_16=4, var_1_17=-4, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=106, var_1_6=10, var_1_7=190, var_1_8=15/8, var_1_9=107] [L20] COND FALSE !(!cond) [L106] RET assume_abort_if_not(var_1_17 <= 63) VAL [isInitial=1, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=5, var_1_14=6, var_1_15=5, var_1_16=4, var_1_17=-4, var_1_18=-2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=106, var_1_6=10, var_1_7=190, var_1_8=15/8, var_1_9=107] [L107] var_1_18 = __VERIFIER_nondet_char() [L108] CALL assume_abort_if_not(var_1_18 >= -31) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=5, var_1_14=6, var_1_15=5, var_1_16=4, var_1_17=-4, var_1_18=2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=106, var_1_6=10, var_1_7=190, var_1_8=15/8, var_1_9=107] [L20] COND FALSE !(!cond) [L108] RET assume_abort_if_not(var_1_18 >= -31) VAL [isInitial=1, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=5, var_1_14=6, var_1_15=5, var_1_16=4, var_1_17=-4, var_1_18=2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=106, var_1_6=10, var_1_7=190, var_1_8=15/8, var_1_9=107] [L109] CALL assume_abort_if_not(var_1_18 <= 32) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=5, var_1_14=6, var_1_15=5, var_1_16=4, var_1_17=-4, var_1_18=2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=106, var_1_6=10, var_1_7=190, var_1_8=15/8, var_1_9=107] [L20] COND FALSE !(!cond) [L109] RET assume_abort_if_not(var_1_18 <= 32) VAL [isInitial=1, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=5, var_1_14=6, var_1_15=5, var_1_16=4, var_1_17=-4, var_1_18=2, var_1_19=1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=106, var_1_6=10, var_1_7=190, var_1_8=15/8, var_1_9=107] [L110] var_1_19 = __VERIFIER_nondet_char() [L111] CALL assume_abort_if_not(var_1_19 >= -31) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=5, var_1_14=6, var_1_15=5, var_1_16=4, var_1_17=-4, var_1_18=2, var_1_19=-1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=106, var_1_6=10, var_1_7=190, var_1_8=15/8, var_1_9=107] [L20] COND FALSE !(!cond) [L111] RET assume_abort_if_not(var_1_19 >= -31) VAL [isInitial=1, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=5, var_1_14=6, var_1_15=5, var_1_16=4, var_1_17=-4, var_1_18=2, var_1_19=-1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=106, var_1_6=10, var_1_7=190, var_1_8=15/8, var_1_9=107] [L112] CALL assume_abort_if_not(var_1_19 <= 31) VAL [\old(cond)=1, isInitial=1, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=5, var_1_14=6, var_1_15=5, var_1_16=4, var_1_17=-4, var_1_18=2, var_1_19=-1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=106, var_1_6=10, var_1_7=190, var_1_8=15/8, var_1_9=107] [L20] COND FALSE !(!cond) [L112] RET assume_abort_if_not(var_1_19 <= 31) VAL [isInitial=1, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=5, var_1_14=6, var_1_15=5, var_1_16=4, var_1_17=-4, var_1_18=2, var_1_19=-1, var_1_1=-4, var_1_20=50, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=106, var_1_6=10, var_1_7=190, var_1_8=15/8, var_1_9=107] [L125] RET updateVariables() [L126] CALL step() [L46] var_1_1 = ((((var_1_2) < 0 ) ? -(var_1_2) : (var_1_2))) [L47] signed long int stepLocal_0 = var_1_2; [L48] COND FALSE !(var_1_1 < stepLocal_0) [L51] EXPR var_1_2 ^ var_1_1 [L51] signed long int stepLocal_2 = var_1_2 ^ var_1_1; [L52] unsigned char stepLocal_1 = var_1_5; [L53] COND FALSE !(stepLocal_2 < -256) [L56] COND FALSE !(stepLocal_1 <= 50) [L60] COND TRUE var_1_1 < (var_1_5 % ((((32) > (var_1_9)) ? (32) : (var_1_9)))) [L61] var_1_8 = ((((((var_1_10) > (var_1_11)) ? (var_1_10) : (var_1_11))) - var_1_12) + (var_1_13 - var_1_14)) [L67] COND TRUE ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))) > var_1_1 [L68] var_1_15 = ((((var_1_3) > ((var_1_5 + var_1_4))) ? (var_1_3) : ((var_1_5 + var_1_4)))) [L70] var_1_16 = (var_1_17 + (var_1_18 + ((((var_1_19) < 0 ) ? -(var_1_19) : (var_1_19))))) [L71] var_1_20 = (((((var_1_5 + var_1_3)) > (var_1_4)) ? ((var_1_5 + var_1_3)) : (var_1_4))) [L72] signed char stepLocal_3 = var_1_16; [L73] EXPR (var_1_2 * var_1_17) & (var_1_15 * var_1_18) [L73] COND FALSE !(stepLocal_3 == ((var_1_2 * var_1_17) & (var_1_15 * var_1_18))) [L126] RET step() [L127] CALL, EXPR property() [L117] EXPR ((var_1_1 == ((signed long int) ((((var_1_2) < 0 ) ? -(var_1_2) : (var_1_2))))) && ((var_1_1 < var_1_2) ? (var_1_3 == ((unsigned char) ((((var_1_4) > (var_1_5)) ? (var_1_4) : (var_1_5))))) : 1)) && (((var_1_2 ^ var_1_1) < -256) ? (var_1_6 == ((unsigned short int) (((((((((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) > ((var_1_3 + var_1_7))) ? (((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) : ((var_1_3 + var_1_7)))) < 0 ) ? -((((((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) > ((var_1_3 + var_1_7))) ? (((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) : ((var_1_3 + var_1_7)))) : ((((((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) > ((var_1_3 + var_1_7))) ? (((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) : ((var_1_3 + var_1_7)))))))) : ((var_1_5 <= 50) ? (var_1_6 == ((unsigned short int) var_1_3)) : 1)) [L117] EXPR var_1_2 ^ var_1_1 [L117] EXPR ((var_1_1 == ((signed long int) ((((var_1_2) < 0 ) ? -(var_1_2) : (var_1_2))))) && ((var_1_1 < var_1_2) ? (var_1_3 == ((unsigned char) ((((var_1_4) > (var_1_5)) ? (var_1_4) : (var_1_5))))) : 1)) && (((var_1_2 ^ var_1_1) < -256) ? (var_1_6 == ((unsigned short int) (((((((((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) > ((var_1_3 + var_1_7))) ? (((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) : ((var_1_3 + var_1_7)))) < 0 ) ? -((((((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) > ((var_1_3 + var_1_7))) ? (((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) : ((var_1_3 + var_1_7)))) : ((((((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) > ((var_1_3 + var_1_7))) ? (((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) : ((var_1_3 + var_1_7)))))))) : ((var_1_5 <= 50) ? (var_1_6 == ((unsigned short int) var_1_3)) : 1)) [L117] EXPR (((((((var_1_1 == ((signed long int) ((((var_1_2) < 0 ) ? -(var_1_2) : (var_1_2))))) && ((var_1_1 < var_1_2) ? (var_1_3 == ((unsigned char) ((((var_1_4) > (var_1_5)) ? (var_1_4) : (var_1_5))))) : 1)) && (((var_1_2 ^ var_1_1) < -256) ? (var_1_6 == ((unsigned short int) (((((((((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) > ((var_1_3 + var_1_7))) ? (((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) : ((var_1_3 + var_1_7)))) < 0 ) ? -((((((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) > ((var_1_3 + var_1_7))) ? (((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) : ((var_1_3 + var_1_7)))) : ((((((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) > ((var_1_3 + var_1_7))) ? (((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) : ((var_1_3 + var_1_7)))))))) : ((var_1_5 <= 50) ? (var_1_6 == ((unsigned short int) var_1_3)) : 1))) && ((var_1_1 < (var_1_5 % ((((32) > (var_1_9)) ? (32) : (var_1_9))))) ? (var_1_8 == ((double) ((((((var_1_10) > (var_1_11)) ? (var_1_10) : (var_1_11))) - var_1_12) + (var_1_13 - var_1_14)))) : ((var_1_13 <= (var_1_14 + var_1_11)) ? (var_1_8 == ((double) var_1_12)) : 1))) && ((((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))) > var_1_1) ? (var_1_15 == ((unsigned short int) ((((var_1_3) > ((var_1_5 + var_1_4))) ? (var_1_3) : ((var_1_5 + var_1_4)))))) : 1)) && (var_1_16 == ((signed char) (var_1_17 + (var_1_18 + ((((var_1_19) < 0 ) ? -(var_1_19) : (var_1_19)))))))) && (var_1_20 == ((unsigned short int) (((((var_1_5 + var_1_3)) > (var_1_4)) ? ((var_1_5 + var_1_3)) : (var_1_4)))))) && ((var_1_16 == ((var_1_2 * var_1_17) & (var_1_15 * var_1_18))) ? (var_1_21 == ((unsigned short int) (var_1_4 + 128))) : 1) [L117-L118] return (((((((var_1_1 == ((signed long int) ((((var_1_2) < 0 ) ? -(var_1_2) : (var_1_2))))) && ((var_1_1 < var_1_2) ? (var_1_3 == ((unsigned char) ((((var_1_4) > (var_1_5)) ? (var_1_4) : (var_1_5))))) : 1)) && (((var_1_2 ^ var_1_1) < -256) ? (var_1_6 == ((unsigned short int) (((((((((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) > ((var_1_3 + var_1_7))) ? (((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) : ((var_1_3 + var_1_7)))) < 0 ) ? -((((((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) > ((var_1_3 + var_1_7))) ? (((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) : ((var_1_3 + var_1_7)))) : ((((((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) > ((var_1_3 + var_1_7))) ? (((((var_1_5) > (var_1_4)) ? (var_1_5) : (var_1_4)))) : ((var_1_3 + var_1_7)))))))) : ((var_1_5 <= 50) ? (var_1_6 == ((unsigned short int) var_1_3)) : 1))) && ((var_1_1 < (var_1_5 % ((((32) > (var_1_9)) ? (32) : (var_1_9))))) ? (var_1_8 == ((double) ((((((var_1_10) > (var_1_11)) ? (var_1_10) : (var_1_11))) - var_1_12) + (var_1_13 - var_1_14)))) : ((var_1_13 <= (var_1_14 + var_1_11)) ? (var_1_8 == ((double) var_1_12)) : 1))) && ((((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))) > var_1_1) ? (var_1_15 == ((unsigned short int) ((((var_1_3) > ((var_1_5 + var_1_4))) ? (var_1_3) : ((var_1_5 + var_1_4)))))) : 1)) && (var_1_16 == ((signed char) (var_1_17 + (var_1_18 + ((((var_1_19) < 0 ) ? -(var_1_19) : (var_1_19)))))))) && (var_1_20 == ((unsigned short int) (((((var_1_5 + var_1_3)) > (var_1_4)) ? ((var_1_5 + var_1_3)) : (var_1_4)))))) && ((var_1_16 == ((var_1_2 * var_1_17) & (var_1_15 * var_1_18))) ? (var_1_21 == ((unsigned short int) (var_1_4 + 128))) : 1) ; [L127] RET, EXPR property() [L127] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=5, var_1_14=6, var_1_15=360, var_1_16=-1, var_1_17=-4, var_1_18=2, var_1_19=-1, var_1_1=105, var_1_20=254, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=106, var_1_6=10, var_1_7=190, var_1_8=0, var_1_9=107] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=5, var_1_14=6, var_1_15=360, var_1_16=-1, var_1_17=-4, var_1_18=2, var_1_19=-1, var_1_1=105, var_1_20=254, var_1_21=0, var_1_2=-105, var_1_3=64, var_1_4=254, var_1_5=106, var_1_6=10, var_1_7=190, var_1_8=0, var_1_9=107] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 1, TraceHistogramMax: 22, 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=44occurred 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, 83 NumberOfCodeBlocks, 83 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 01:02:11,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/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_e72ad296-8a1d-479a-8d37-e09351572af4/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/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_e72ad296-8a1d-479a-8d37-e09351572af4/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-78.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/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_e72ad296-8a1d-479a-8d37-e09351572af4/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 2015d37ef3c12f799914a1d5573231d07895302eda54efaaedb57c9454a76b5a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 01:02:14,289 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 01:02:14,410 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-12 01:02:14,418 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 01:02:14,427 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 01:02:14,471 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 01:02:14,472 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 01:02:14,473 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 01:02:14,474 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 01:02:14,478 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 01:02:14,479 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 01:02:14,479 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 01:02:14,480 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 01:02:14,482 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 01:02:14,482 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 01:02:14,482 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 01:02:14,484 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 01:02:14,484 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 01:02:14,485 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 01:02:14,486 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 01:02:14,486 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 01:02:14,487 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 01:02:14,487 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 01:02:14,488 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 01:02:14,488 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 01:02:14,488 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 01:02:14,489 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 01:02:14,489 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 01:02:14,490 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 01:02:14,490 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 01:02:14,492 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 01:02:14,492 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 01:02:14,492 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 01:02:14,493 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:02:14,493 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 01:02:14,493 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 01:02:14,494 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 01:02:14,494 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 01:02:14,494 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 01:02:14,495 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 01:02:14,495 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 01:02:14,496 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 01:02:14,496 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_e72ad296-8a1d-479a-8d37-e09351572af4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2015d37ef3c12f799914a1d5573231d07895302eda54efaaedb57c9454a76b5a [2023-11-12 01:02:14,918 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 01:02:14,940 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 01:02:14,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 01:02:14,945 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 01:02:14,945 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 01:02:14,947 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-78.i [2023-11-12 01:02:18,033 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 01:02:18,354 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 01:02:18,355 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-78.i [2023-11-12 01:02:18,383 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/bin/utaipan-verify-NcY6lQBIFX/data/51890d328/c0aff6d6fc554b07ba2a5b43e4ef66f7/FLAG69d209d28 [2023-11-12 01:02:18,399 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/bin/utaipan-verify-NcY6lQBIFX/data/51890d328/c0aff6d6fc554b07ba2a5b43e4ef66f7 [2023-11-12 01:02:18,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 01:02:18,403 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 01:02:18,405 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 01:02:18,405 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 01:02:18,410 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 01:02:18,411 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:02:18" (1/1) ... [2023-11-12 01:02:18,412 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ac3f031 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:18, skipping insertion in model container [2023-11-12 01:02:18,413 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:02:18" (1/1) ... [2023-11-12 01:02:18,448 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 01:02:18,599 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_e72ad296-8a1d-479a-8d37-e09351572af4/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-78.i[917,930] [2023-11-12 01:02:18,700 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:02:18,715 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 01:02:18,729 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_e72ad296-8a1d-479a-8d37-e09351572af4/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-78.i[917,930] [2023-11-12 01:02:18,764 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:02:18,790 INFO L206 MainTranslator]: Completed translation [2023-11-12 01:02:18,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:18 WrapperNode [2023-11-12 01:02:18,791 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 01:02:18,792 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 01:02:18,793 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 01:02:18,793 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 01:02:18,813 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:18" (1/1) ... [2023-11-12 01:02:18,843 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:18" (1/1) ... [2023-11-12 01:02:18,876 INFO L138 Inliner]: procedures = 27, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 137 [2023-11-12 01:02:18,877 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 01:02:18,878 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 01:02:18,878 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 01:02:18,878 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 01:02:18,888 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:18" (1/1) ... [2023-11-12 01:02:18,888 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:18" (1/1) ... [2023-11-12 01:02:18,893 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:18" (1/1) ... [2023-11-12 01:02:18,900 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:18" (1/1) ... [2023-11-12 01:02:18,912 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:18" (1/1) ... [2023-11-12 01:02:18,915 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:18" (1/1) ... [2023-11-12 01:02:18,919 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:18" (1/1) ... [2023-11-12 01:02:18,921 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:18" (1/1) ... [2023-11-12 01:02:18,926 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 01:02:18,927 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 01:02:18,927 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 01:02:18,927 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 01:02:18,928 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:18" (1/1) ... [2023-11-12 01:02:18,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:02:18,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:02:18,982 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 01:02:18,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 01:02:19,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 01:02:19,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 01:02:19,021 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 01:02:19,021 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 01:02:19,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 01:02:19,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 01:02:19,117 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 01:02:19,119 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 01:02:23,938 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 01:02:23,946 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 01:02:23,946 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 01:02:23,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:02:23 BoogieIcfgContainer [2023-11-12 01:02:23,949 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 01:02:23,951 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 01:02:23,951 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 01:02:23,954 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 01:02:23,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 01:02:18" (1/3) ... [2023-11-12 01:02:23,955 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f02a752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:02:23, skipping insertion in model container [2023-11-12 01:02:23,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:18" (2/3) ... [2023-11-12 01:02:23,956 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f02a752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:02:23, skipping insertion in model container [2023-11-12 01:02:23,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:02:23" (3/3) ... [2023-11-12 01:02:23,958 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-78.i [2023-11-12 01:02:23,976 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 01:02:23,976 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 01:02:24,021 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 01:02:24,028 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;@7be0330b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 01:02:24,029 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 01:02:24,033 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 38 states have (on average 1.3157894736842106) internal successors, (50), 39 states have internal predecessors, (50), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-12 01:02:24,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-12 01:02:24,047 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:02:24,048 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:24,049 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:02:24,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:02:24,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1967860872, now seen corresponding path program 1 times [2023-11-12 01:02:24,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 01:02:24,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [473130084] [2023-11-12 01:02:24,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:24,071 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 01:02:24,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 01:02:24,080 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/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 01:02:24,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/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 01:02:24,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:24,725 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 01:02:24,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:02:24,788 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2023-11-12 01:02:24,789 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 01:02:24,789 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 01:02:24,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [473130084] [2023-11-12 01:02:24,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [473130084] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:02:24,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:02:24,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 01:02:24,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293525565] [2023-11-12 01:02:24,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:02:24,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 01:02:24,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 01:02:24,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 01:02:24,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 01:02:24,839 INFO L87 Difference]: Start difference. First operand has 63 states, 38 states have (on average 1.3157894736842106) internal successors, (50), 39 states have internal predecessors, (50), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-12 01:02:24,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:02:24,893 INFO L93 Difference]: Finished difference Result 119 states and 204 transitions. [2023-11-12 01:02:24,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 01:02:24,895 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 139 [2023-11-12 01:02:24,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:02:24,907 INFO L225 Difference]: With dead ends: 119 [2023-11-12 01:02:24,908 INFO L226 Difference]: Without dead ends: 59 [2023-11-12 01:02:24,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 138 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 01:02:24,919 INFO L413 NwaCegarLoop]: 87 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, 87 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 01:02:24,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 01:02:24,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-11-12 01:02:24,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2023-11-12 01:02:24,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 35 states have internal predecessors, (43), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-12 01:02:24,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 87 transitions. [2023-11-12 01:02:24,989 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 87 transitions. Word has length 139 [2023-11-12 01:02:24,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:02:24,990 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 87 transitions. [2023-11-12 01:02:24,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-12 01:02:24,992 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 87 transitions. [2023-11-12 01:02:25,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-12 01:02:25,003 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:02:25,003 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:25,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/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 01:02:25,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/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 01:02:25,214 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:02:25,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:02:25,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1454046484, now seen corresponding path program 1 times [2023-11-12 01:02:25,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 01:02:25,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [372481884] [2023-11-12 01:02:25,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:25,217 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 01:02:25,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 01:02:25,219 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/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 01:02:25,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/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 01:02:25,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:25,743 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 01:02:25,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:02:25,929 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-12 01:02:25,929 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 01:02:25,929 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 01:02:25,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [372481884] [2023-11-12 01:02:25,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [372481884] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:02:25,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:02:25,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 01:02:25,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307805804] [2023-11-12 01:02:25,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:02:25,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 01:02:25,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 01:02:25,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 01:02:25,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 01:02:25,935 INFO L87 Difference]: Start difference. First operand 59 states and 87 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-11-12 01:02:28,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 01:02:30,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 01:02:31,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 01:02:31,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:02:31,694 INFO L93 Difference]: Finished difference Result 115 states and 171 transitions. [2023-11-12 01:02:31,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 01:02:31,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 139 [2023-11-12 01:02:31,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:02:31,734 INFO L225 Difference]: With dead ends: 115 [2023-11-12 01:02:31,734 INFO L226 Difference]: Without dead ends: 59 [2023-11-12 01:02:31,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 01:02:31,737 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 15 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-11-12 01:02:31,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 142 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2023-11-12 01:02:31,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-11-12 01:02:31,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2023-11-12 01:02:31,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 35 states have (on average 1.2) internal successors, (42), 35 states have internal predecessors, (42), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-12 01:02:31,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 86 transitions. [2023-11-12 01:02:31,749 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 86 transitions. Word has length 139 [2023-11-12 01:02:31,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:02:31,751 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 86 transitions. [2023-11-12 01:02:31,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-11-12 01:02:31,752 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 86 transitions. [2023-11-12 01:02:31,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-12 01:02:31,754 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:02:31,754 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:31,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/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 01:02:31,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/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 01:02:31,976 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:02:31,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:02:31,977 INFO L85 PathProgramCache]: Analyzing trace with hash -752981906, now seen corresponding path program 1 times [2023-11-12 01:02:31,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 01:02:31,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1562299977] [2023-11-12 01:02:31,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:31,978 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 01:02:31,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 01:02:31,980 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/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 01:02:31,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/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 01:02:32,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:32,558 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 01:02:32,565 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 01:02:33,114 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-12 01:02:33,117 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 01:02:33,117 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 01:02:33,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1562299977] [2023-11-12 01:02:33,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1562299977] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:02:33,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:02:33,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 01:02:33,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512297399] [2023-11-12 01:02:33,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:02:33,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 01:02:33,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 01:02:33,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 01:02:33,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-12 01:02:33,122 INFO L87 Difference]: Start difference. First operand 59 states and 86 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-11-12 01:02:36,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-12 01:02:38,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-12 01:02:40,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-12 01:02:42,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-12 01:02:44,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-12 01:02:46,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-12 01:02:48,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-12 01:02:50,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-12 01:02:52,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:02:52,255 INFO L93 Difference]: Finished difference Result 169 states and 248 transitions. [2023-11-12 01:02:52,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 01:02:52,257 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 139 [2023-11-12 01:02:52,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:02:52,260 INFO L225 Difference]: With dead ends: 169 [2023-11-12 01:02:52,260 INFO L226 Difference]: Without dead ends: 113 [2023-11-12 01:02:52,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-12 01:02:52,262 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 151 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.7s IncrementalHoareTripleChecker+Time [2023-11-12 01:02:52,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 378 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 118 Invalid, 8 Unknown, 0 Unchecked, 18.7s Time] [2023-11-12 01:02:52,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-11-12 01:02:52,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 62. [2023-11-12 01:02:52,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 38 states have (on average 1.2105263157894737) internal successors, (46), 38 states have internal predecessors, (46), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-12 01:02:52,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 90 transitions. [2023-11-12 01:02:52,278 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 90 transitions. Word has length 139 [2023-11-12 01:02:52,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:02:52,279 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 90 transitions. [2023-11-12 01:02:52,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-11-12 01:02:52,279 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 90 transitions. [2023-11-12 01:02:52,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-11-12 01:02:52,281 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:02:52,281 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:02:52,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/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)] Forceful destruction successful, exit code 0 [2023-11-12 01:02:52,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/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 01:02:52,496 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 01:02:52,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:02:52,497 INFO L85 PathProgramCache]: Analyzing trace with hash -624155683, now seen corresponding path program 1 times [2023-11-12 01:02:52,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 01:02:52,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [783296807] [2023-11-12 01:02:52,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:02:52,498 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 01:02:52,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 01:02:52,506 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/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 01:02:52,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e72ad296-8a1d-479a-8d37-e09351572af4/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 (5)] Waiting until timeout for monitored process [2023-11-12 01:02:53,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:02:53,098 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-12 01:02:53,108 INFO L285 TraceCheckSpWp]: Computing forward predicates...