./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.2.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.2.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c482feebae2e4674787294054b23234696017dfe8b10199ec324ab4d13763155 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:18:44,072 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:18:44,172 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-14 04:18:44,181 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:18:44,182 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:18:44,218 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:18:44,220 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:18:44,221 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:18:44,221 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:18:44,222 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:18:44,223 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:18:44,223 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:18:44,223 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:18:44,224 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:18:44,224 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:18:44,224 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:18:44,224 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:18:44,224 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:18:44,224 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:18:44,224 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:18:44,224 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:18:44,224 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:18:44,225 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:18:44,225 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:18:44,225 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:18:44,225 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:18:44,225 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:18:44,225 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:18:44,225 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:18:44,227 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:18:44,227 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:18:44,227 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:18:44,227 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:18:44,227 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:18:44,228 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:18:44,228 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:18:44,228 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:18:44,229 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:18:44,229 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:18:44,229 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:18:44,229 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:18:44,229 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:18:44,229 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:18:44,229 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:18:44,230 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c482feebae2e4674787294054b23234696017dfe8b10199ec324ab4d13763155 [2024-11-14 04:18:44,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:18:44,593 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:18:44,598 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:18:44,599 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:18:44,600 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:18:44,601 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.2.prop1-func-interl.c Unable to find full path for "g++" [2024-11-14 04:18:46,649 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:18:47,130 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:18:47,135 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.2.prop1-func-interl.c [2024-11-14 04:18:47,164 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/bin/utaipan-verify-sOmjnqqW8E/data/a33c23c45/20ef289c4f81484e899b83addab73f17/FLAG4f5241d57 [2024-11-14 04:18:47,191 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/bin/utaipan-verify-sOmjnqqW8E/data/a33c23c45/20ef289c4f81484e899b83addab73f17 [2024-11-14 04:18:47,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:18:47,195 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:18:47,196 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:18:47,197 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:18:47,201 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:18:47,203 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:18:47" (1/1) ... [2024-11-14 04:18:47,206 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a17a4e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:18:47, skipping insertion in model container [2024-11-14 04:18:47,206 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:18:47" (1/1) ... [2024-11-14 04:18:47,308 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:18:47,621 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.2.prop1-func-interl.c[1174,1187] [2024-11-14 04:18:48,216 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:18:48,229 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:18:48,239 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.2.prop1-func-interl.c[1174,1187] [2024-11-14 04:18:48,555 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:18:48,574 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:18:48,575 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:18:48 WrapperNode [2024-11-14 04:18:48,576 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:18:48,577 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:18:48,578 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:18:48,578 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:18:48,585 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:18:48" (1/1) ... [2024-11-14 04:18:48,681 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:18:48" (1/1) ... [2024-11-14 04:18:49,917 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 8027 [2024-11-14 04:18:49,918 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:18:49,919 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:18:49,919 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:18:49,919 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:18:49,927 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:18:48" (1/1) ... [2024-11-14 04:18:49,928 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:18:48" (1/1) ... [2024-11-14 04:18:50,445 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:18:48" (1/1) ... [2024-11-14 04:18:50,450 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:18:48" (1/1) ... [2024-11-14 04:18:50,931 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:18:48" (1/1) ... [2024-11-14 04:18:51,082 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:18:48" (1/1) ... [2024-11-14 04:18:51,148 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:18:48" (1/1) ... [2024-11-14 04:18:51,192 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:18:48" (1/1) ... [2024-11-14 04:18:51,432 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:18:51,434 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:18:51,434 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:18:51,435 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:18:51,436 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:18:48" (1/1) ... [2024-11-14 04:18:51,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:18:51,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:18:51,478 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:18:51,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:18:51,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:18:51,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:18:51,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:18:51,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:18:52,248 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:18:52,250 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:19:06,333 INFO L? ?]: Removed 4550 outVars from TransFormulas that were not future-live. [2024-11-14 04:19:06,333 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:19:24,021 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:19:24,023 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 04:19:24,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:19:24 BoogieIcfgContainer [2024-11-14 04:19:24,023 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:19:24,027 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:19:24,027 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:19:24,034 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:19:24,034 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:18:47" (1/3) ... [2024-11-14 04:19:24,035 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@441184a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:19:24, skipping insertion in model container [2024-11-14 04:19:24,035 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:18:48" (2/3) ... [2024-11-14 04:19:24,037 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@441184a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:19:24, skipping insertion in model container [2024-11-14 04:19:24,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:19:24" (3/3) ... [2024-11-14 04:19:24,039 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.lamport.2.prop1-func-interl.c [2024-11-14 04:19:24,060 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:19:24,062 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.lamport.2.prop1-func-interl.c that has 1 procedures, 7 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 04:19:24,141 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:19:24,161 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3dac4aa7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:19:24,163 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:19:24,169 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:19:24,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 04:19:24,177 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:19:24,177 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 04:19:24,179 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:19:24,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:19:24,186 INFO L85 PathProgramCache]: Analyzing trace with hash 412222333, now seen corresponding path program 1 times [2024-11-14 04:19:24,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:19:24,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315182999] [2024-11-14 04:19:24,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:19:24,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:19:25,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:19:25,112 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 04:19:25,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:19:25,680 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 04:19:25,682 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 04:19:25,683 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 04:19:25,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 04:19:25,694 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 04:19:25,752 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 04:19:25,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 04:19:25 BoogieIcfgContainer [2024-11-14 04:19:25,757 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 04:19:25,758 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 04:19:25,758 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 04:19:25,758 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 04:19:25,763 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:19:24" (3/4) ... [2024-11-14 04:19:25,766 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 04:19:25,767 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 04:19:25,769 INFO L158 Benchmark]: Toolchain (without parser) took 38573.92ms. Allocated memory was 117.4MB in the beginning and 2.9GB in the end (delta: 2.8GB). Free memory was 88.8MB in the beginning and 2.3GB in the end (delta: -2.2GB). Peak memory consumption was 591.8MB. Max. memory is 16.1GB. [2024-11-14 04:19:25,769 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 117.4MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:19:25,771 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1380.72ms. Allocated memory is still 117.4MB. Free memory was 88.8MB in the beginning and 38.1MB in the end (delta: 50.7MB). Peak memory consumption was 77.7MB. Max. memory is 16.1GB. [2024-11-14 04:19:25,771 INFO L158 Benchmark]: Boogie Procedure Inliner took 1340.43ms. Allocated memory was 117.4MB in the beginning and 251.7MB in the end (delta: 134.2MB). Free memory was 38.0MB in the beginning and 62.1MB in the end (delta: -24.1MB). Peak memory consumption was 138.9MB. Max. memory is 16.1GB. [2024-11-14 04:19:25,772 INFO L158 Benchmark]: Boogie Preprocessor took 1513.35ms. Allocated memory was 251.7MB in the beginning and 931.1MB in the end (delta: 679.5MB). Free memory was 62.1MB in the beginning and 698.7MB in the end (delta: -636.7MB). Peak memory consumption was 63.0MB. Max. memory is 16.1GB. [2024-11-14 04:19:25,772 INFO L158 Benchmark]: RCFGBuilder took 32589.76ms. Allocated memory was 931.1MB in the beginning and 2.9GB in the end (delta: 1.9GB). Free memory was 698.7MB in the beginning and 2.4GB in the end (delta: -1.7GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB. [2024-11-14 04:19:25,773 INFO L158 Benchmark]: TraceAbstraction took 1730.44ms. Allocated memory is still 2.9GB. Free memory was 2.4GB in the beginning and 2.3GB in the end (delta: 137.3MB). Peak memory consumption was 142.6MB. Max. memory is 16.1GB. [2024-11-14 04:19:25,773 INFO L158 Benchmark]: Witness Printer took 9.57ms. Allocated memory is still 2.9GB. Free memory is still 2.3GB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:19:25,777 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 117.4MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1380.72ms. Allocated memory is still 117.4MB. Free memory was 88.8MB in the beginning and 38.1MB in the end (delta: 50.7MB). Peak memory consumption was 77.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 1340.43ms. Allocated memory was 117.4MB in the beginning and 251.7MB in the end (delta: 134.2MB). Free memory was 38.0MB in the beginning and 62.1MB in the end (delta: -24.1MB). Peak memory consumption was 138.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 1513.35ms. Allocated memory was 251.7MB in the beginning and 931.1MB in the end (delta: 679.5MB). Free memory was 62.1MB in the beginning and 698.7MB in the end (delta: -636.7MB). Peak memory consumption was 63.0MB. Max. memory is 16.1GB. * RCFGBuilder took 32589.76ms. Allocated memory was 931.1MB in the beginning and 2.9GB in the end (delta: 1.9GB). Free memory was 698.7MB in the beginning and 2.4GB in the end (delta: -1.7GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB. * TraceAbstraction took 1730.44ms. Allocated memory is still 2.9GB. Free memory was 2.4GB in the beginning and 2.3GB in the end (delta: 137.3MB). Peak memory consumption was 142.6MB. Max. memory is 16.1GB. * Witness Printer took 9.57ms. Allocated memory is still 2.9GB. Free memory is still 2.3GB. 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: 21]: 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 bitwiseAnd at line 216, overapproximation of bitwiseAnd at line 93. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 8); [L30] const SORT_2 msb_SORT_2 = (SORT_2)1 << (8 - 1); [L32] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 24); [L33] const SORT_3 msb_SORT_3 = (SORT_3)1 << (24 - 1); [L35] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L36] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L38] const SORT_2 var_5 = 0; [L39] const SORT_1 var_22 = 0; [L40] const SORT_4 var_85 = 1; [L41] const SORT_4 var_86 = 0; [L42] const SORT_2 var_95 = 0; [L43] const SORT_2 var_96 = 255; [L44] const SORT_2 var_108 = 1; [L45] const SORT_2 var_132 = 2; [L46] const SORT_3 var_169 = 0; [L47] const SORT_4 var_337 = 3; [L48] const SORT_2 var_348 = 3; [L50] SORT_1 input_99; [L51] SORT_1 input_101; [L52] SORT_1 input_103; [L53] SORT_1 input_104; [L54] SORT_1 input_105; [L55] SORT_1 input_107; [L56] SORT_1 input_118; [L57] SORT_1 input_119; [L58] SORT_1 input_121; [L59] SORT_1 input_130; [L60] SORT_1 input_131; [L61] SORT_1 input_135; [L62] SORT_1 input_145; [L63] SORT_1 input_146; [L64] SORT_1 input_147; [L65] SORT_1 input_153; [L66] SORT_1 input_154; [L67] SORT_1 input_155; [L68] SORT_1 input_156; [L69] SORT_1 input_157; [L70] SORT_1 input_158; [L71] SORT_1 input_168; [L72] SORT_1 input_176; [L73] SORT_1 input_183; [L74] SORT_1 input_191; [L75] SORT_1 input_193; [L76] SORT_1 input_197; [L77] SORT_1 input_199; [L78] SORT_1 input_208; [L79] SORT_1 input_222; [L80] SORT_1 input_233; [L81] SORT_1 input_235; [L82] SORT_1 input_239; [L83] SORT_1 input_241; [L84] SORT_1 input_250; [L85] SORT_1 input_264; [L86] SORT_1 input_275; [L87] SORT_1 input_277; [L88] SORT_1 input_281; [L89] SORT_1 input_283; [L90] SORT_1 input_292; [L91] SORT_1 input_306; [L93] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L93] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L94] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L94] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L95] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L95] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L96] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L96] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L97] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L97] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L98] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L98] SORT_2 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L99] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L99] SORT_2 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L100] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L100] SORT_2 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L101] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L101] SORT_1 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L102] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L102] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L103] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L103] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L104] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L104] SORT_1 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L105] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L105] SORT_1 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L106] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L106] SORT_1 state_33 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L107] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L107] SORT_1 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L108] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L108] SORT_1 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L109] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L109] SORT_1 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L110] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L110] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L111] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L111] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L112] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L112] SORT_1 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L113] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L113] SORT_1 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L114] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L114] SORT_1 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L115] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L115] SORT_1 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L116] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L116] SORT_1 state_53 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L117] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L117] SORT_1 state_55 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L118] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L118] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L119] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L119] SORT_1 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L120] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L120] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L121] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L121] SORT_1 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L122] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L122] SORT_1 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L123] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L123] SORT_1 state_67 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L124] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L124] SORT_1 state_69 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L125] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L125] SORT_1 state_71 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L126] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L126] SORT_1 state_73 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L127] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L127] SORT_1 state_75 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L128] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L128] SORT_1 state_77 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L129] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L129] SORT_1 state_79 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L130] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L130] SORT_1 state_81 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L131] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L131] SORT_1 state_83 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L133] SORT_2 init_7_arg_1 = var_5; [L134] state_6 = init_7_arg_1 [L135] SORT_2 init_9_arg_1 = var_5; [L136] state_8 = init_9_arg_1 [L137] SORT_2 init_11_arg_1 = var_5; [L138] state_10 = init_11_arg_1 [L139] SORT_2 init_13_arg_1 = var_5; [L140] state_12 = init_13_arg_1 [L141] SORT_2 init_15_arg_1 = var_5; [L142] state_14 = init_15_arg_1 [L143] SORT_2 init_17_arg_1 = var_5; [L144] state_16 = init_17_arg_1 [L145] SORT_2 init_19_arg_1 = var_5; [L146] state_18 = init_19_arg_1 [L147] SORT_2 init_21_arg_1 = var_5; [L148] state_20 = init_21_arg_1 [L149] SORT_1 init_24_arg_1 = var_22; [L150] state_23 = init_24_arg_1 [L151] SORT_1 init_26_arg_1 = var_22; [L152] state_25 = init_26_arg_1 [L153] SORT_1 init_28_arg_1 = var_22; [L154] state_27 = init_28_arg_1 [L155] SORT_1 init_30_arg_1 = var_22; [L156] state_29 = init_30_arg_1 [L157] SORT_1 init_32_arg_1 = var_22; [L158] state_31 = init_32_arg_1 [L159] SORT_1 init_34_arg_1 = var_22; [L160] state_33 = init_34_arg_1 [L161] SORT_1 init_36_arg_1 = var_22; [L162] state_35 = init_36_arg_1 [L163] SORT_1 init_38_arg_1 = var_22; [L164] state_37 = init_38_arg_1 [L165] SORT_1 init_40_arg_1 = var_22; [L166] state_39 = init_40_arg_1 [L167] SORT_1 init_42_arg_1 = var_22; [L168] state_41 = init_42_arg_1 [L169] SORT_1 init_44_arg_1 = var_22; [L170] state_43 = init_44_arg_1 [L171] SORT_1 init_46_arg_1 = var_22; [L172] state_45 = init_46_arg_1 [L173] SORT_1 init_48_arg_1 = var_22; [L174] state_47 = init_48_arg_1 [L175] SORT_1 init_50_arg_1 = var_22; [L176] state_49 = init_50_arg_1 [L177] SORT_1 init_52_arg_1 = var_22; [L178] state_51 = init_52_arg_1 [L179] SORT_1 init_54_arg_1 = var_22; [L180] state_53 = init_54_arg_1 [L181] SORT_1 init_56_arg_1 = var_22; [L182] state_55 = init_56_arg_1 [L183] SORT_1 init_58_arg_1 = var_22; [L184] state_57 = init_58_arg_1 [L185] SORT_1 init_60_arg_1 = var_22; [L186] state_59 = init_60_arg_1 [L187] SORT_1 init_62_arg_1 = var_22; [L188] state_61 = init_62_arg_1 [L189] SORT_1 init_64_arg_1 = var_22; [L190] state_63 = init_64_arg_1 [L191] SORT_1 init_66_arg_1 = var_22; [L192] state_65 = init_66_arg_1 [L193] SORT_1 init_68_arg_1 = var_22; [L194] state_67 = init_68_arg_1 [L195] SORT_1 init_70_arg_1 = var_22; [L196] state_69 = init_70_arg_1 [L197] SORT_1 init_72_arg_1 = var_22; [L198] state_71 = init_72_arg_1 [L199] SORT_1 init_74_arg_1 = var_22; [L200] state_73 = init_74_arg_1 [L201] SORT_1 init_76_arg_1 = var_22; [L202] state_75 = init_76_arg_1 [L203] SORT_1 init_78_arg_1 = var_22; [L204] state_77 = init_78_arg_1 [L205] SORT_1 init_80_arg_1 = var_22; [L206] state_79 = init_80_arg_1 [L207] SORT_1 init_82_arg_1 = var_22; [L208] state_81 = init_82_arg_1 [L209] SORT_1 init_84_arg_1 = var_22; [L210] state_83 = init_84_arg_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_6=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_81=0, state_83=0, state_8=0, var_108=1, var_132=2, var_169=0, var_337=3, var_348=3, var_85=1, var_86=0, var_95=0, var_96=255] [L213] input_99 = __VERIFIER_nondet_uchar() [L214] input_101 = __VERIFIER_nondet_uchar() [L215] input_103 = __VERIFIER_nondet_uchar() [L216] EXPR input_103 & mask_SORT_1 [L216] input_103 = input_103 & mask_SORT_1 [L217] input_104 = __VERIFIER_nondet_uchar() [L218] EXPR input_104 & mask_SORT_1 [L218] input_104 = input_104 & mask_SORT_1 [L219] input_105 = __VERIFIER_nondet_uchar() [L220] input_107 = __VERIFIER_nondet_uchar() [L221] EXPR input_107 & mask_SORT_1 [L221] input_107 = input_107 & mask_SORT_1 [L222] input_118 = __VERIFIER_nondet_uchar() [L223] EXPR input_118 & mask_SORT_1 [L223] input_118 = input_118 & mask_SORT_1 [L224] input_119 = __VERIFIER_nondet_uchar() [L225] EXPR input_119 & mask_SORT_1 [L225] input_119 = input_119 & mask_SORT_1 [L226] input_121 = __VERIFIER_nondet_uchar() [L227] EXPR input_121 & mask_SORT_1 [L227] input_121 = input_121 & mask_SORT_1 [L228] input_130 = __VERIFIER_nondet_uchar() [L229] EXPR input_130 & mask_SORT_1 [L229] input_130 = input_130 & mask_SORT_1 [L230] input_131 = __VERIFIER_nondet_uchar() [L231] EXPR input_131 & mask_SORT_1 [L231] input_131 = input_131 & mask_SORT_1 [L232] input_135 = __VERIFIER_nondet_uchar() [L233] EXPR input_135 & mask_SORT_1 [L233] input_135 = input_135 & mask_SORT_1 [L234] input_145 = __VERIFIER_nondet_uchar() [L235] EXPR input_145 & mask_SORT_1 [L235] input_145 = input_145 & mask_SORT_1 [L236] input_146 = __VERIFIER_nondet_uchar() [L237] EXPR input_146 & mask_SORT_1 [L237] input_146 = input_146 & mask_SORT_1 [L238] input_147 = __VERIFIER_nondet_uchar() [L239] EXPR input_147 & mask_SORT_1 [L239] input_147 = input_147 & mask_SORT_1 [L240] input_153 = __VERIFIER_nondet_uchar() [L241] EXPR input_153 & mask_SORT_1 [L241] input_153 = input_153 & mask_SORT_1 [L242] input_154 = __VERIFIER_nondet_uchar() [L243] EXPR input_154 & mask_SORT_1 [L243] input_154 = input_154 & mask_SORT_1 [L244] input_155 = __VERIFIER_nondet_uchar() [L245] EXPR input_155 & mask_SORT_1 [L245] input_155 = input_155 & mask_SORT_1 [L246] input_156 = __VERIFIER_nondet_uchar() [L247] EXPR input_156 & mask_SORT_1 [L247] input_156 = input_156 & mask_SORT_1 [L248] input_157 = __VERIFIER_nondet_uchar() [L249] EXPR input_157 & mask_SORT_1 [L249] input_157 = input_157 & mask_SORT_1 [L250] input_158 = __VERIFIER_nondet_uchar() [L251] EXPR input_158 & mask_SORT_1 [L251] input_158 = input_158 & mask_SORT_1 [L252] input_168 = __VERIFIER_nondet_uchar() [L253] EXPR input_168 & mask_SORT_1 [L253] input_168 = input_168 & mask_SORT_1 [L254] input_176 = __VERIFIER_nondet_uchar() [L255] EXPR input_176 & mask_SORT_1 [L255] input_176 = input_176 & mask_SORT_1 [L256] input_183 = __VERIFIER_nondet_uchar() [L257] EXPR input_183 & mask_SORT_1 [L257] input_183 = input_183 & mask_SORT_1 [L258] input_191 = __VERIFIER_nondet_uchar() [L259] input_193 = __VERIFIER_nondet_uchar() [L260] input_197 = __VERIFIER_nondet_uchar() [L261] input_199 = __VERIFIER_nondet_uchar() [L262] input_208 = __VERIFIER_nondet_uchar() [L263] input_222 = __VERIFIER_nondet_uchar() [L264] input_233 = __VERIFIER_nondet_uchar() [L265] input_235 = __VERIFIER_nondet_uchar() [L266] input_239 = __VERIFIER_nondet_uchar() [L267] input_241 = __VERIFIER_nondet_uchar() [L268] input_250 = __VERIFIER_nondet_uchar() [L269] input_264 = __VERIFIER_nondet_uchar() [L270] input_275 = __VERIFIER_nondet_uchar() [L271] input_277 = __VERIFIER_nondet_uchar() [L272] input_281 = __VERIFIER_nondet_uchar() [L273] input_283 = __VERIFIER_nondet_uchar() [L274] input_292 = __VERIFIER_nondet_uchar() [L275] input_306 = __VERIFIER_nondet_uchar() [L278] SORT_1 var_87_arg_0 = state_25; [L279] SORT_4 var_87_arg_1 = var_85; [L280] SORT_4 var_87_arg_2 = var_86; [L281] SORT_4 var_87 = var_87_arg_0 ? var_87_arg_1 : var_87_arg_2; [L282] SORT_1 var_88_arg_0 = state_45; [L283] SORT_4 var_88_arg_1 = var_85; [L284] SORT_4 var_88_arg_2 = var_86; [L285] SORT_4 var_88 = var_88_arg_0 ? var_88_arg_1 : var_88_arg_2; [L286] SORT_4 var_89_arg_0 = var_87; [L287] SORT_4 var_89_arg_1 = var_88; [L288] SORT_4 var_89 = var_89_arg_0 + var_89_arg_1; [L289] SORT_1 var_90_arg_0 = state_65; [L290] SORT_4 var_90_arg_1 = var_85; [L291] SORT_4 var_90_arg_2 = var_86; [L292] SORT_4 var_90 = var_90_arg_0 ? var_90_arg_1 : var_90_arg_2; [L293] SORT_4 var_91_arg_0 = var_89; [L294] SORT_4 var_91_arg_1 = var_90; [L295] SORT_4 var_91 = var_91_arg_0 + var_91_arg_1; [L296] EXPR var_91 & mask_SORT_4 [L296] var_91 = var_91 & mask_SORT_4 [L297] SORT_4 var_92_arg_0 = var_91; [L298] SORT_4 var_92_arg_1 = var_85; [L299] SORT_1 var_92 = var_92_arg_0 <= var_92_arg_1; [L300] SORT_1 var_93_arg_0 = ~state_83; [L301] EXPR var_93_arg_0 & mask_SORT_1 [L301] var_93_arg_0 = var_93_arg_0 & mask_SORT_1 [L302] SORT_1 var_93_arg_1 = ~var_92; [L303] EXPR var_93_arg_1 & mask_SORT_1 [L303] var_93_arg_1 = var_93_arg_1 & mask_SORT_1 [L304] EXPR var_93_arg_0 & var_93_arg_1 [L304] SORT_1 var_93 = var_93_arg_0 & var_93_arg_1; [L305] EXPR var_93 & mask_SORT_1 [L305] var_93 = var_93 & mask_SORT_1 [L306] SORT_1 bad_94_arg_0 = var_93; [L307] CALL __VERIFIER_assert(!(bad_94_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 1, TraceHistogramMax: 1, 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=7occurred 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, 0.7s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 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 [2024-11-14 04:19:25,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/bin/utaipan-verify-sOmjnqqW8E/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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.2.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c482feebae2e4674787294054b23234696017dfe8b10199ec324ab4d13763155 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:19:28,992 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:19:29,157 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2024-11-14 04:19:29,168 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:19:29,168 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:19:29,210 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:19:29,212 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:19:29,213 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:19:29,213 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:19:29,213 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:19:29,214 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:19:29,214 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:19:29,214 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:19:29,215 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:19:29,215 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:19:29,217 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:19:29,217 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:19:29,217 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:19:29,217 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:19:29,218 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:19:29,218 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:19:29,218 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:19:29,218 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 04:19:29,218 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 04:19:29,218 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:19:29,218 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 04:19:29,218 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:19:29,218 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:19:29,218 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:19:29,219 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 04:19:29,219 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:19:29,219 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:19:29,219 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:19:29,220 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:19:29,220 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:19:29,220 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:19:29,221 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 04:19:29,221 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 04:19:29,222 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:19:29,222 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:19:29,222 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_720aef1b-670c-483d-9abe-77ee19c5d5b5/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c482feebae2e4674787294054b23234696017dfe8b10199ec324ab4d13763155 [2024-11-14 04:19:29,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:19:29,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:19:29,611 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:19:29,612 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:19:29,613 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:19:29,614 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.2.prop1-func-interl.c Unable to find full path for "g++" [2024-11-14 04:19:31,734 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:19:32,242 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:19:32,243 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.2.prop1-func-interl.c [2024-11-14 04:19:32,273 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/bin/utaipan-verify-sOmjnqqW8E/data/c5bb675e4/fa8a478344d145d3b1d96834e069fb92/FLAGd2928d7df [2024-11-14 04:19:32,302 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/bin/utaipan-verify-sOmjnqqW8E/data/c5bb675e4/fa8a478344d145d3b1d96834e069fb92 [2024-11-14 04:19:32,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:19:32,307 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:19:32,309 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:19:32,309 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:19:32,314 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:19:32,316 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:19:32" (1/1) ... [2024-11-14 04:19:32,317 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40ec8760 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:19:32, skipping insertion in model container [2024-11-14 04:19:32,317 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:19:32" (1/1) ... [2024-11-14 04:19:32,431 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:19:32,690 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.2.prop1-func-interl.c[1174,1187] [2024-11-14 04:19:33,242 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:19:33,254 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:19:33,268 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.2.prop1-func-interl.c[1174,1187] [2024-11-14 04:19:33,486 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:19:33,503 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:19:33,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:19:33 WrapperNode [2024-11-14 04:19:33,504 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:19:33,505 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:19:33,506 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:19:33,506 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:19:33,514 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:19:33" (1/1) ... [2024-11-14 04:19:33,566 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:19:33" (1/1) ... [2024-11-14 04:19:33,720 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2403 [2024-11-14 04:19:33,721 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:19:33,722 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:19:33,723 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:19:33,723 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:19:33,731 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:19:33" (1/1) ... [2024-11-14 04:19:33,732 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:19:33" (1/1) ... [2024-11-14 04:19:33,757 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:19:33" (1/1) ... [2024-11-14 04:19:33,758 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:19:33" (1/1) ... [2024-11-14 04:19:33,827 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:19:33" (1/1) ... [2024-11-14 04:19:33,833 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:19:33" (1/1) ... [2024-11-14 04:19:33,842 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:19:33" (1/1) ... [2024-11-14 04:19:33,908 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:19:33" (1/1) ... [2024-11-14 04:19:33,947 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:19:33,947 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:19:33,948 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:19:33,948 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:19:33,949 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:19:33" (1/1) ... [2024-11-14 04:19:33,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:19:33,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:19:33,996 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:19:34,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:19:34,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:19:34,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 04:19:34,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:19:34,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:19:34,699 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:19:34,705 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:19:38,413 INFO L? ?]: Removed 118 outVars from TransFormulas that were not future-live. [2024-11-14 04:19:38,413 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:19:38,424 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:19:38,425 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 04:19:38,425 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:19:38 BoogieIcfgContainer [2024-11-14 04:19:38,425 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:19:38,428 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:19:38,428 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:19:38,434 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:19:38,434 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:19:32" (1/3) ... [2024-11-14 04:19:38,435 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d1f3156 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:19:38, skipping insertion in model container [2024-11-14 04:19:38,435 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:19:33" (2/3) ... [2024-11-14 04:19:38,435 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d1f3156 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:19:38, skipping insertion in model container [2024-11-14 04:19:38,436 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:19:38" (3/3) ... [2024-11-14 04:19:38,437 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.lamport.2.prop1-func-interl.c [2024-11-14 04:19:38,454 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:19:38,457 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.lamport.2.prop1-func-interl.c that has 1 procedures, 10 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 04:19:38,524 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:19:38,545 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1e2bbb9c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:19:38,546 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:19:38,551 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:19:38,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-14 04:19:38,558 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:19:38,559 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-14 04:19:38,560 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:19:38,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:19:38,569 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-14 04:19:38,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:19:38,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2046454351] [2024-11-14 04:19:38,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:19:38,587 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 [2024-11-14 04:19:38,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:19:38,591 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 04:19:38,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:19:39,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:19:39,299 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-14 04:19:39,321 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:19:39,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:19:39,718 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:19:39,719 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:19:39,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2046454351] [2024-11-14 04:19:39,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2046454351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:19:39,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:19:39,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:19:39,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048105509] [2024-11-14 04:19:39,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:19:39,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:19:39,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:19:39,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:19:39,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:19:39,755 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:19:40,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:19:40,029 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-11-14 04:19:40,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:19:40,036 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-14 04:19:40,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:19:40,044 INFO L225 Difference]: With dead ends: 18 [2024-11-14 04:19:40,044 INFO L226 Difference]: Without dead ends: 10 [2024-11-14 04:19:40,047 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:19:40,052 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:19:40,053 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:19:40,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-14 04:19:40,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-14 04:19:40,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:19:40,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-14 04:19:40,089 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-14 04:19:40,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:19:40,089 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-14 04:19:40,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:19:40,090 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-14 04:19:40,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-14 04:19:40,090 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:19:40,091 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-14 04:19:40,097 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/bin/utaipan-verify-sOmjnqqW8E/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)] Ended with exit code 0 [2024-11-14 04:19:40,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:19:40,295 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:19:40,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:19:40,296 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-14 04:19:40,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:19:40,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1643716481] [2024-11-14 04:19:40,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:19:40,298 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 [2024-11-14 04:19:40,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:19:40,302 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 04:19:40,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_720aef1b-670c-483d-9abe-77ee19c5d5b5/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 04:19:41,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:19:41,301 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-11-14 04:19:41,338 INFO L278 TraceCheckSpWp]: Computing forward predicates...