./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-92.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/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_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-92.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d52da112b6c70caf5a0051f5b07592777e147cdc0a968527b7dd1b58dd51c406 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:33:35,653 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:33:35,728 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 05:33:35,734 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:33:35,734 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:33:35,762 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:33:35,763 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:33:35,763 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:33:35,764 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:33:35,764 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:33:35,764 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:33:35,764 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:33:35,765 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:33:35,765 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:33:35,765 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:33:35,765 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:33:35,765 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:33:35,765 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:33:35,766 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:33:35,766 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:33:35,766 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:33:35,766 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:33:35,767 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:33:35,767 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:33:35,767 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:33:35,767 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:33:35,768 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:33:35,768 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:33:35,768 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:33:35,768 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:33:35,768 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:33:35,769 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:33:35,769 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:33:35,769 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:33:35,769 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:33:35,769 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:33:35,769 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:33:35,769 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:33:35,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:33:35,770 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:33:35,770 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:33:35,770 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:33:35,770 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:33:35,770 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:33:35,770 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:33:35,771 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:33:35,771 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:33:35,771 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_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d52da112b6c70caf5a0051f5b07592777e147cdc0a968527b7dd1b58dd51c406 [2024-11-14 05:33:36,182 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:33:36,195 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:33:36,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:33:36,202 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:33:36,203 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:33:36,205 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-92.i Unable to find full path for "g++" [2024-11-14 05:33:38,675 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:33:39,077 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:33:39,081 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-92.i [2024-11-14 05:33:39,095 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/data/4807da01c/8dca121f895440c5b8e6e5440dffb1f2/FLAGedaf5b6ff [2024-11-14 05:33:39,120 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/data/4807da01c/8dca121f895440c5b8e6e5440dffb1f2 [2024-11-14 05:33:39,123 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:33:39,125 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:33:39,127 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:33:39,127 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:33:39,133 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:33:39,134 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:33:39" (1/1) ... [2024-11-14 05:33:39,138 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7faabbda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:33:39, skipping insertion in model container [2024-11-14 05:33:39,138 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:33:39" (1/1) ... [2024-11-14 05:33:39,165 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:33:39,364 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_77307333-69f1-4ceb-bac7-68ddc309da56/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-92.i[915,928] [2024-11-14 05:33:39,448 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:33:39,461 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:33:39,477 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_77307333-69f1-4ceb-bac7-68ddc309da56/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-92.i[915,928] [2024-11-14 05:33:39,505 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:33:39,527 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:33:39,527 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:33:39 WrapperNode [2024-11-14 05:33:39,528 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:33:39,529 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:33:39,529 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:33:39,529 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:33:39,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:33:39" (1/1) ... [2024-11-14 05:33:39,546 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:33:39" (1/1) ... [2024-11-14 05:33:39,581 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 135 [2024-11-14 05:33:39,581 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:33:39,582 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:33:39,582 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:33:39,582 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:33:39,594 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:33:39" (1/1) ... [2024-11-14 05:33:39,595 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:33:39" (1/1) ... [2024-11-14 05:33:39,598 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:33:39" (1/1) ... [2024-11-14 05:33:39,598 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:33:39" (1/1) ... [2024-11-14 05:33:39,613 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:33:39" (1/1) ... [2024-11-14 05:33:39,620 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:33:39" (1/1) ... [2024-11-14 05:33:39,626 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:33:39" (1/1) ... [2024-11-14 05:33:39,631 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:33:39" (1/1) ... [2024-11-14 05:33:39,634 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:33:39,635 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:33:39,635 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:33:39,638 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:33:39,640 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:33:39" (1/1) ... [2024-11-14 05:33:39,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:33:39,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:33:39,699 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:33:39,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:33:39,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:33:39,742 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 05:33:39,742 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 05:33:39,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:33:39,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:33:39,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:33:39,862 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:33:39,865 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:33:40,272 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-14 05:33:40,272 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:33:40,569 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:33:40,569 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:33:40,569 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:33:40 BoogieIcfgContainer [2024-11-14 05:33:40,569 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:33:40,572 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:33:40,573 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:33:40,584 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:33:40,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:33:39" (1/3) ... [2024-11-14 05:33:40,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@711820d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:33:40, skipping insertion in model container [2024-11-14 05:33:40,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:33:39" (2/3) ... [2024-11-14 05:33:40,588 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@711820d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:33:40, skipping insertion in model container [2024-11-14 05:33:40,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:33:40" (3/3) ... [2024-11-14 05:33:40,591 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-92.i [2024-11-14 05:33:40,615 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:33:40,617 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-while_file-92.i that has 2 procedures, 35 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 05:33:40,713 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:33:40,728 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;@1acd3083, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:33:40,728 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:33:40,733 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-14 05:33:40,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-14 05:33:40,743 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:33:40,743 INFO L215 NwaCegarLoop]: trace histogram [17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:33:40,744 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:33:40,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:33:40,749 INFO L85 PathProgramCache]: Analyzing trace with hash 793245305, now seen corresponding path program 1 times [2024-11-14 05:33:40,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:33:40,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070379480] [2024-11-14 05:33:40,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:33:40,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:33:41,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 05:33:41,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [819148478] [2024-11-14 05:33:41,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:33:41,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:33:41,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:33:41,091 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:33:41,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 05:33:41,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:33:41,296 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 05:33:41,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:33:41,475 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 05:33:41,478 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 05:33:41,479 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 05:33:41,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-14 05:33:41,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:33:41,687 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 05:33:41,751 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 05:33:41,754 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:33:41 BoogieIcfgContainer [2024-11-14 05:33:41,755 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 05:33:41,755 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 05:33:41,755 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 05:33:41,756 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 05:33:41,756 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:33:40" (3/4) ... [2024-11-14 05:33:41,759 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 05:33:41,760 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 05:33:41,761 INFO L158 Benchmark]: Toolchain (without parser) took 2636.62ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 58.5MB in the end (delta: 33.1MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. [2024-11-14 05:33:41,761 INFO L158 Benchmark]: CDTParser took 1.20ms. Allocated memory is still 83.9MB. Free memory is still 41.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:33:41,762 INFO L158 Benchmark]: CACSL2BoogieTranslator took 401.84ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 78.9MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:33:41,762 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.17ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 77.2MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:33:41,763 INFO L158 Benchmark]: Boogie Preprocessor took 52.50ms. Allocated memory is still 117.4MB. Free memory was 77.2MB in the beginning and 76.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:33:41,763 INFO L158 Benchmark]: RCFGBuilder took 934.54ms. Allocated memory is still 117.4MB. Free memory was 76.2MB in the beginning and 40.6MB in the end (delta: 35.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-14 05:33:41,764 INFO L158 Benchmark]: TraceAbstraction took 1182.31ms. Allocated memory is still 117.4MB. Free memory was 40.1MB in the beginning and 58.5MB in the end (delta: -18.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:33:41,764 INFO L158 Benchmark]: Witness Printer took 4.76ms. Allocated memory is still 117.4MB. Free memory is still 58.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:33:41,766 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.20ms. Allocated memory is still 83.9MB. Free memory is still 41.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 401.84ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 78.9MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.17ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 77.2MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.50ms. Allocated memory is still 117.4MB. Free memory was 77.2MB in the beginning and 76.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 934.54ms. Allocated memory is still 117.4MB. Free memory was 76.2MB in the beginning and 40.6MB in the end (delta: 35.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1182.31ms. Allocated memory is still 117.4MB. Free memory was 40.1MB in the beginning and 58.5MB in the end (delta: -18.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.76ms. Allocated memory is still 117.4MB. Free memory is still 58.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 95, overapproximation of bitwiseAnd at line 40, overapproximation of someBinaryDOUBLEComparisonOperation at line 81, overapproximation of someBinaryDOUBLEComparisonOperation at line 95. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = 32; [L23] signed char var_1_2 = 2; [L24] signed char var_1_3 = 8; [L25] signed char var_1_4 = 0; [L26] signed char var_1_5 = 32; [L27] signed char var_1_6 = 10; [L28] double var_1_7 = 1000000.625; [L29] double var_1_8 = 16.65; [L30] signed char var_1_9 = 25; [L31] unsigned char var_1_10 = 0; [L32] unsigned char var_1_11 = 0; [L33] float var_1_12 = 0.25; [L34] unsigned short int var_1_13 = 54726; [L99] isInitial = 1 [L100] FCALL initially() [L101] COND TRUE 1 [L102] FCALL updateLastVariables() [L103] CALL updateVariables() [L65] var_1_2 = __VERIFIER_nondet_char() [L66] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=2, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=2, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L67] CALL assume_abort_if_not(var_1_2 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=2, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_2 <= 63) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=2, var_1_3=8, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L68] var_1_3 = __VERIFIER_nondet_char() [L69] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=2, var_1_3=2, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=2, var_1_3=2, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L70] CALL assume_abort_if_not(var_1_3 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=2, var_1_3=2, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_3 <= 63) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=2, var_1_3=2, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L71] var_1_4 = __VERIFIER_nondet_char() [L72] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=2, var_1_3=2, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=2, var_1_3=2, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L73] CALL assume_abort_if_not(var_1_4 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=2, var_1_3=2, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_4 <= 126) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=2, var_1_3=2, var_1_4=0, var_1_5=32, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L74] var_1_5 = __VERIFIER_nondet_char() [L75] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=2, var_1_3=2, var_1_4=0, var_1_5=1, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=2, var_1_3=2, var_1_4=0, var_1_5=1, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L76] CALL assume_abort_if_not(var_1_5 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=2, var_1_3=2, var_1_4=0, var_1_5=1, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_5 <= 63) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=2, var_1_3=2, var_1_4=0, var_1_5=1, var_1_6=10, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L77] var_1_6 = __VERIFIER_nondet_char() [L78] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=2, var_1_3=2, var_1_4=0, var_1_5=1, var_1_6=3, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=2, var_1_3=2, var_1_4=0, var_1_5=1, var_1_6=3, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L79] CALL assume_abort_if_not(var_1_6 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=2, var_1_3=2, var_1_4=0, var_1_5=1, var_1_6=3, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_6 <= 63) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=2, var_1_3=2, var_1_4=0, var_1_5=1, var_1_6=3, var_1_7=8000005/8, var_1_8=333/20, var_1_9=25] [L80] var_1_8 = __VERIFIER_nondet_double() [L81] CALL assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=2, var_1_3=2, var_1_4=0, var_1_5=1, var_1_6=3, var_1_7=8000005/8, var_1_9=25] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=2, var_1_3=2, var_1_4=0, var_1_5=1, var_1_6=3, var_1_7=8000005/8, var_1_9=25] [L82] var_1_10 = __VERIFIER_nondet_uchar() [L83] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=2, var_1_3=2, var_1_4=0, var_1_5=1, var_1_6=3, var_1_7=8000005/8, var_1_9=25] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=2, var_1_3=2, var_1_4=0, var_1_5=1, var_1_6=3, var_1_7=8000005/8, var_1_9=25] [L84] CALL assume_abort_if_not(var_1_10 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=2, var_1_3=2, var_1_4=0, var_1_5=1, var_1_6=3, var_1_7=8000005/8, var_1_9=25] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_10 <= 1) VAL [isInitial=1, var_1_10=1, var_1_11=0, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=2, var_1_3=2, var_1_4=0, var_1_5=1, var_1_6=3, var_1_7=8000005/8, var_1_9=25] [L85] var_1_11 = __VERIFIER_nondet_uchar() [L86] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=2, var_1_3=2, var_1_4=0, var_1_5=1, var_1_6=3, var_1_7=8000005/8, var_1_9=25] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=1, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=2, var_1_3=2, var_1_4=0, var_1_5=1, var_1_6=3, var_1_7=8000005/8, var_1_9=25] [L87] CALL assume_abort_if_not(var_1_11 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=2, var_1_3=2, var_1_4=0, var_1_5=1, var_1_6=3, var_1_7=8000005/8, var_1_9=25] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_11 <= 1) VAL [isInitial=1, var_1_10=1, var_1_11=1, var_1_12=1/4, var_1_13=54726, var_1_1=32, var_1_2=2, var_1_3=2, var_1_4=0, var_1_5=1, var_1_6=3, var_1_7=8000005/8, var_1_9=25] [L88] var_1_13 = __VERIFIER_nondet_ushort() [L89] CALL assume_abort_if_not(var_1_13 >= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1, var_1_12=1/4, var_1_13=32767, var_1_1=32, var_1_2=2, var_1_3=2, var_1_4=0, var_1_5=1, var_1_6=3, var_1_7=8000005/8, var_1_9=25] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_13 >= 32767) VAL [isInitial=1, var_1_10=1, var_1_11=1, var_1_12=1/4, var_1_13=32767, var_1_1=32, var_1_2=2, var_1_3=2, var_1_4=0, var_1_5=1, var_1_6=3, var_1_7=8000005/8, var_1_9=25] [L90] CALL assume_abort_if_not(var_1_13 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1, var_1_12=1/4, var_1_13=32767, var_1_1=32, var_1_2=2, var_1_3=2, var_1_4=0, var_1_5=1, var_1_6=3, var_1_7=8000005/8, var_1_9=25] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_13 <= 65535) VAL [isInitial=1, var_1_10=1, var_1_11=1, var_1_12=1/4, var_1_13=32767, var_1_1=32, var_1_2=2, var_1_3=2, var_1_4=0, var_1_5=1, var_1_6=3, var_1_7=8000005/8, var_1_9=25] [L103] RET updateVariables() [L104] CALL step() [L38] var_1_1 = ((var_1_2 + var_1_3) - ((((var_1_4) > ((var_1_5 + var_1_6))) ? (var_1_4) : ((var_1_5 + var_1_6))))) [L39] signed char stepLocal_0 = var_1_4; [L40] EXPR var_1_6 & var_1_3 [L40] COND TRUE ((~ var_1_5) * (var_1_6 & var_1_3)) >= stepLocal_0 [L41] var_1_7 = var_1_8 [L43] unsigned char stepLocal_1 = var_1_10; [L44] COND TRUE stepLocal_1 && var_1_11 [L45] var_1_9 = (var_1_3 - var_1_2) [L47] signed long int stepLocal_4 = var_1_13 - var_1_5; [L48] unsigned char stepLocal_3 = var_1_10; [L49] unsigned char stepLocal_2 = var_1_10; [L50] COND TRUE var_1_11 || stepLocal_3 [L51] COND TRUE stepLocal_2 || (((((var_1_2) < (var_1_3)) ? (var_1_2) : (var_1_3))) < 32) [L52] COND FALSE !(stepLocal_4 < var_1_2) [L55] var_1_12 = var_1_8 [L104] RET step() [L105] CALL, EXPR property() [L95] EXPR (var_1_1 == ((signed char) ((var_1_2 + var_1_3) - ((((var_1_4) > ((var_1_5 + var_1_6))) ? (var_1_4) : ((var_1_5 + var_1_6))))))) && ((((~ var_1_5) * (var_1_6 & var_1_3)) >= var_1_4) ? (var_1_7 == ((double) var_1_8)) : 1) [L95] EXPR var_1_6 & var_1_3 [L95] EXPR (var_1_1 == ((signed char) ((var_1_2 + var_1_3) - ((((var_1_4) > ((var_1_5 + var_1_6))) ? (var_1_4) : ((var_1_5 + var_1_6))))))) && ((((~ var_1_5) * (var_1_6 & var_1_3)) >= var_1_4) ? (var_1_7 == ((double) var_1_8)) : 1) [L95-L96] return (((var_1_1 == ((signed char) ((var_1_2 + var_1_3) - ((((var_1_4) > ((var_1_5 + var_1_6))) ? (var_1_4) : ((var_1_5 + var_1_6))))))) && ((((~ var_1_5) * (var_1_6 & var_1_3)) >= var_1_4) ? (var_1_7 == ((double) var_1_8)) : 1)) && ((var_1_10 && var_1_11) ? (var_1_9 == ((signed char) (var_1_3 - var_1_2))) : 1)) && ((var_1_11 || var_1_10) ? ((var_1_10 || (((((var_1_2) < (var_1_3)) ? (var_1_2) : (var_1_3))) < 32)) ? (((var_1_13 - var_1_5) < var_1_2) ? (var_1_12 == ((float) var_1_8)) : (var_1_12 == ((float) var_1_8))) : (var_1_12 == ((float) var_1_8))) : (var_1_12 == ((float) var_1_8))) ; [L105] RET, EXPR property() [L105] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=1, var_1_11=1, var_1_12=2, var_1_13=32767, var_1_1=0, var_1_2=2, var_1_3=2, var_1_4=0, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=2, var_1_9=0] [L19] reach_error() VAL [isInitial=1, var_1_10=1, var_1_11=1, var_1_12=2, var_1_13=32767, var_1_1=0, var_1_2=2, var_1_3=2, var_1_4=0, var_1_5=1, var_1_6=3, var_1_7=2, var_1_8=2, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 17, 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=35occurred 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, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 2 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 05:33:41,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/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_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/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_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-92.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d52da112b6c70caf5a0051f5b07592777e147cdc0a968527b7dd1b58dd51c406 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:33:45,021 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:33:45,125 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-14 05:33:45,132 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:33:45,132 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:33:45,199 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:33:45,200 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:33:45,204 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:33:45,205 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:33:45,205 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:33:45,205 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:33:45,206 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:33:45,206 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:33:45,206 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:33:45,206 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:33:45,206 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:33:45,207 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:33:45,207 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:33:45,207 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:33:45,207 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:33:45,207 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:33:45,207 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:33:45,207 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:33:45,208 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:33:45,208 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 05:33:45,208 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 05:33:45,208 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:33:45,208 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 05:33:45,211 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:33:45,212 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:33:45,212 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:33:45,212 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:33:45,212 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 05:33:45,212 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:33:45,212 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:33:45,212 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:33:45,213 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:33:45,213 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:33:45,213 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:33:45,213 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 05:33:45,213 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 05:33:45,213 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:33:45,213 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:33:45,213 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_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d52da112b6c70caf5a0051f5b07592777e147cdc0a968527b7dd1b58dd51c406 [2024-11-14 05:33:45,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:33:45,634 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:33:45,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:33:45,638 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:33:45,639 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:33:45,640 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-92.i Unable to find full path for "g++" [2024-11-14 05:33:47,832 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:33:48,226 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:33:48,227 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-92.i [2024-11-14 05:33:48,239 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/data/bc1437716/ca1ab086130541b3ad515d497a3358c5/FLAGf448fb27f [2024-11-14 05:33:48,258 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/data/bc1437716/ca1ab086130541b3ad515d497a3358c5 [2024-11-14 05:33:48,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:33:48,263 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:33:48,265 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:33:48,265 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:33:48,271 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:33:48,273 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:33:48" (1/1) ... [2024-11-14 05:33:48,274 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@757b8613 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:33:48, skipping insertion in model container [2024-11-14 05:33:48,274 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:33:48" (1/1) ... [2024-11-14 05:33:48,296 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:33:48,526 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_77307333-69f1-4ceb-bac7-68ddc309da56/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-92.i[915,928] [2024-11-14 05:33:48,613 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:33:48,642 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:33:48,657 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_77307333-69f1-4ceb-bac7-68ddc309da56/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-92.i[915,928] [2024-11-14 05:33:48,682 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:33:48,710 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:33:48,711 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:33:48 WrapperNode [2024-11-14 05:33:48,711 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:33:48,713 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:33:48,713 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:33:48,714 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:33:48,722 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:33:48" (1/1) ... [2024-11-14 05:33:48,738 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:33:48" (1/1) ... [2024-11-14 05:33:48,785 INFO L138 Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 107 [2024-11-14 05:33:48,786 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:33:48,790 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:33:48,791 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:33:48,791 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:33:48,801 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:33:48" (1/1) ... [2024-11-14 05:33:48,802 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:33:48" (1/1) ... [2024-11-14 05:33:48,808 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:33:48" (1/1) ... [2024-11-14 05:33:48,809 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:33:48" (1/1) ... [2024-11-14 05:33:48,830 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:33:48" (1/1) ... [2024-11-14 05:33:48,838 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:33:48" (1/1) ... [2024-11-14 05:33:48,846 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:33:48" (1/1) ... [2024-11-14 05:33:48,850 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:33:48" (1/1) ... [2024-11-14 05:33:48,854 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:33:48,858 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:33:48,858 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:33:48,859 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:33:48,862 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:33:48" (1/1) ... [2024-11-14 05:33:48,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:33:48,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:33:48,921 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:33:48,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:33:48,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:33:48,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 05:33:48,953 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 05:33:48,953 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 05:33:48,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:33:48,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:33:49,058 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:33:49,060 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:33:50,119 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-14 05:33:50,119 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:33:50,133 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:33:50,134 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:33:50,134 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:33:50 BoogieIcfgContainer [2024-11-14 05:33:50,134 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:33:50,138 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:33:50,138 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:33:50,145 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:33:50,146 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:33:48" (1/3) ... [2024-11-14 05:33:50,146 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6691382e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:33:50, skipping insertion in model container [2024-11-14 05:33:50,147 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:33:48" (2/3) ... [2024-11-14 05:33:50,147 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6691382e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:33:50, skipping insertion in model container [2024-11-14 05:33:50,147 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:33:50" (3/3) ... [2024-11-14 05:33:50,149 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-92.i [2024-11-14 05:33:50,170 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:33:50,172 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-while_file-92.i that has 2 procedures, 52 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 05:33:50,248 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:33:50,263 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;@68a68e5f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:33:50,263 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:33:50,268 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 32 states have (on average 1.3125) internal successors, (42), 33 states have internal predecessors, (42), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-14 05:33:50,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-14 05:33:50,282 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:33:50,283 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:33:50,284 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:33:50,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:33:50,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1893237757, now seen corresponding path program 1 times [2024-11-14 05:33:50,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:33:50,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2116564458] [2024-11-14 05:33:50,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:33:50,305 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 05:33:50,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:33:50,310 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/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 05:33:50,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/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 05:33:50,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:33:50,622 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 05:33:50,632 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:33:50,687 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 284 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2024-11-14 05:33:50,687 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:33:50,688 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:33:50,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2116564458] [2024-11-14 05:33:50,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2116564458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:33:50,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:33:50,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:33:50,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372721514] [2024-11-14 05:33:50,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:33:50,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 05:33:50,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:33:50,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 05:33:50,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 05:33:50,727 INFO L87 Difference]: Start difference. First operand has 52 states, 32 states have (on average 1.3125) internal successors, (42), 33 states have internal predecessors, (42), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-14 05:33:50,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:33:50,758 INFO L93 Difference]: Finished difference Result 97 states and 163 transitions. [2024-11-14 05:33:50,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 05:33:50,760 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 108 [2024-11-14 05:33:50,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:33:50,769 INFO L225 Difference]: With dead ends: 97 [2024-11-14 05:33:50,769 INFO L226 Difference]: Without dead ends: 48 [2024-11-14 05:33:50,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 05:33:50,776 INFO L432 NwaCegarLoop]: 69 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, 69 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 [2024-11-14 05:33:50,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 05:33:50,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-11-14 05:33:50,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2024-11-14 05:33:50,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 29 states have (on average 1.206896551724138) internal successors, (35), 29 states have internal predecessors, (35), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-14 05:33:50,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 69 transitions. [2024-11-14 05:33:50,833 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 69 transitions. Word has length 108 [2024-11-14 05:33:50,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:33:50,837 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 69 transitions. [2024-11-14 05:33:50,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-14 05:33:50,837 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 69 transitions. [2024-11-14 05:33:50,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-14 05:33:50,844 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:33:50,844 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:33:50,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/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 05:33:51,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/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 05:33:51,045 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:33:51,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:33:51,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1834905403, now seen corresponding path program 1 times [2024-11-14 05:33:51,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:33:51,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [372265514] [2024-11-14 05:33:51,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:33:51,048 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 05:33:51,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:33:51,053 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/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 05:33:51,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/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 05:33:51,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:33:51,280 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-14 05:33:51,286 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:33:51,336 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-14 05:33:51,336 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:33:51,337 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:33:51,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [372265514] [2024-11-14 05:33:51,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [372265514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:33:51,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:33:51,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:33:51,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889771026] [2024-11-14 05:33:51,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:33:51,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:33:51,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:33:51,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:33:51,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:33:51,341 INFO L87 Difference]: Start difference. First operand 48 states and 69 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 05:33:51,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:33:51,887 INFO L93 Difference]: Finished difference Result 129 states and 186 transitions. [2024-11-14 05:33:51,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:33:51,890 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 108 [2024-11-14 05:33:51,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:33:51,892 INFO L225 Difference]: With dead ends: 129 [2024-11-14 05:33:51,892 INFO L226 Difference]: Without dead ends: 84 [2024-11-14 05:33:51,893 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:33:51,894 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 48 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:33:51,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 171 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 05:33:51,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-14 05:33:51,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 81. [2024-11-14 05:33:51,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 48 states have (on average 1.1875) internal successors, (57), 49 states have internal predecessors, (57), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-14 05:33:51,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 117 transitions. [2024-11-14 05:33:51,921 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 117 transitions. Word has length 108 [2024-11-14 05:33:51,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:33:51,922 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 117 transitions. [2024-11-14 05:33:51,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 05:33:51,923 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 117 transitions. [2024-11-14 05:33:51,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-14 05:33:51,925 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:33:51,926 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:33:51,932 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/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)] Ended with exit code 0 [2024-11-14 05:33:52,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/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 05:33:52,127 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:33:52,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:33:52,128 INFO L85 PathProgramCache]: Analyzing trace with hash -685054531, now seen corresponding path program 1 times [2024-11-14 05:33:52,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:33:52,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2145930166] [2024-11-14 05:33:52,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:33:52,131 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 05:33:52,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:33:52,136 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/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 05:33:52,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/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 (4)] Waiting until timeout for monitored process [2024-11-14 05:33:52,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:33:52,397 INFO L255 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-14 05:33:52,408 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:34:16,274 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 256 proven. 162 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-11-14 05:34:16,274 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:35:21,013 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-14 05:35:21,014 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:35:21,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2145930166] [2024-11-14 05:35:21,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2145930166] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:35:21,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [33646685] [2024-11-14 05:35:21,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:35:21,015 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 05:35:21,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 05:35:21,021 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 05:35:21,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-14 05:35:21,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:35:21,676 INFO L255 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-14 05:35:21,683 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:36:43,742 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 288 proven. 195 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-14 05:36:43,742 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:38:00,041 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-14 05:38:00,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [33646685] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:38:00,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669710040] [2024-11-14 05:38:00,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:38:00,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:38:00,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:38:00,046 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:38:00,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 05:38:00,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:38:00,301 INFO L255 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-14 05:38:00,306 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:38:40,991 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 336 proven. 66 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2024-11-14 05:38:40,991 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:39:26,623 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-14 05:39:26,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [669710040] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:39:26,623 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 05:39:26,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 10, 37, 10, 15, 10] total 78 [2024-11-14 05:39:26,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078420199] [2024-11-14 05:39:26,624 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 05:39:26,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2024-11-14 05:39:26,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:39:26,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2024-11-14 05:39:26,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=888, Invalid=5118, Unknown=0, NotChecked=0, Total=6006 [2024-11-14 05:39:26,633 INFO L87 Difference]: Start difference. First operand 81 states and 117 transitions. Second operand has 78 states, 78 states have (on average 2.08974358974359) internal successors, (163), 72 states have internal predecessors, (163), 21 states have call successors, (72), 19 states have call predecessors, (72), 27 states have return successors, (75), 21 states have call predecessors, (75), 21 states have call successors, (75) [2024-11-14 05:42:29,267 WARN L286 SmtUtils]: Spent 5.96s on a formula simplification. DAG size of input: 104 DAG size of output: 90 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:42:45,454 WARN L286 SmtUtils]: Spent 6.94s on a formula simplification. DAG size of input: 107 DAG size of output: 93 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:43:02,443 WARN L286 SmtUtils]: Spent 7.50s on a formula simplification. DAG size of input: 107 DAG size of output: 93 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:43:03,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:43:03,334 INFO L93 Difference]: Finished difference Result 205 states and 229 transitions. [2024-11-14 05:43:03,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-14 05:43:03,343 INFO L78 Accepts]: Start accepts. Automaton has has 78 states, 78 states have (on average 2.08974358974359) internal successors, (163), 72 states have internal predecessors, (163), 21 states have call successors, (72), 19 states have call predecessors, (72), 27 states have return successors, (75), 21 states have call predecessors, (75), 21 states have call successors, (75) Word has length 108 [2024-11-14 05:43:03,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:43:03,347 INFO L225 Difference]: With dead ends: 205 [2024-11-14 05:43:03,348 INFO L226 Difference]: Without dead ends: 203 [2024-11-14 05:43:03,355 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 690 GetRequests, 571 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5197 ImplicationChecksByTransitivity, 363.8s TimeCoverageRelationStatistics Valid=2521, Invalid=11999, Unknown=0, NotChecked=0, Total=14520 [2024-11-14 05:43:03,357 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 393 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 1308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:43:03,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 654 Invalid, 1308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1208 Invalid, 0 Unknown, 0 Unchecked, 34.8s Time] [2024-11-14 05:43:03,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2024-11-14 05:43:03,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 164. [2024-11-14 05:43:03,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 111 states have (on average 1.0810810810810811) internal successors, (120), 112 states have internal predecessors, (120), 30 states have call successors, (30), 22 states have call predecessors, (30), 22 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-14 05:43:03,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 180 transitions. [2024-11-14 05:43:03,392 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 180 transitions. Word has length 108 [2024-11-14 05:43:03,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:43:03,393 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 180 transitions. [2024-11-14 05:43:03,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 78 states have (on average 2.08974358974359) internal successors, (163), 72 states have internal predecessors, (163), 21 states have call successors, (72), 19 states have call predecessors, (72), 27 states have return successors, (75), 21 states have call predecessors, (75), 21 states have call successors, (75) [2024-11-14 05:43:03,394 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 180 transitions. [2024-11-14 05:43:03,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-14 05:43:03,396 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:43:03,396 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:43:03,404 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/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 (4)] Ended with exit code 0 [2024-11-14 05:43:03,617 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-14 05:43:03,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2024-11-14 05:43:03,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/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=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 05:43:03,998 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:43:03,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:43:03,999 INFO L85 PathProgramCache]: Analyzing trace with hash 642004480, now seen corresponding path program 1 times [2024-11-14 05:43:03,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:43:03,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1537941004] [2024-11-14 05:43:04,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:43:04,000 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 05:43:04,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:43:04,002 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/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 05:43:04,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/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 (7)] Waiting until timeout for monitored process [2024-11-14 05:43:04,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:43:04,163 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 05:43:04,166 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:43:04,414 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 232 proven. 12 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-11-14 05:43:04,414 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:43:04,662 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-14 05:43:04,662 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:43:04,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1537941004] [2024-11-14 05:43:04,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1537941004] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 05:43:04,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:43:04,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-14 05:43:04,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717442147] [2024-11-14 05:43:04,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:43:04,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:43:04,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 05:43:04,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:43:04,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-14 05:43:04,666 INFO L87 Difference]: Start difference. First operand 164 states and 180 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 05:43:05,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:43:05,628 INFO L93 Difference]: Finished difference Result 327 states and 358 transitions. [2024-11-14 05:43:05,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:43:05,629 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 109 [2024-11-14 05:43:05,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:43:05,632 INFO L225 Difference]: With dead ends: 327 [2024-11-14 05:43:05,632 INFO L226 Difference]: Without dead ends: 166 [2024-11-14 05:43:05,633 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-14 05:43:05,634 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 64 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-14 05:43:05,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 262 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-14 05:43:05,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-11-14 05:43:05,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 164. [2024-11-14 05:43:05,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 111 states have (on average 1.072072072072072) internal successors, (119), 112 states have internal predecessors, (119), 30 states have call successors, (30), 22 states have call predecessors, (30), 22 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-14 05:43:05,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 179 transitions. [2024-11-14 05:43:05,666 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 179 transitions. Word has length 109 [2024-11-14 05:43:05,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:43:05,667 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 179 transitions. [2024-11-14 05:43:05,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 05:43:05,667 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 179 transitions. [2024-11-14 05:43:05,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-14 05:43:05,669 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:43:05,670 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:43:05,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/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 (7)] Ended with exit code 0 [2024-11-14 05:43:05,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/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 05:43:05,871 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:43:05,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:43:05,872 INFO L85 PathProgramCache]: Analyzing trace with hash -167342146, now seen corresponding path program 1 times [2024-11-14 05:43:05,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:43:05,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1129014507] [2024-11-14 05:43:05,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:43:05,873 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 05:43:05,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:43:05,880 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/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 05:43:05,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/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 (8)] Waiting until timeout for monitored process [2024-11-14 05:43:06,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:43:06,084 INFO L255 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-14 05:43:06,088 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:43:30,754 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 294 proven. 159 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-14 05:43:30,754 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:45:30,336 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-14 05:45:30,336 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 05:45:30,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1129014507] [2024-11-14 05:45:30,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1129014507] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:45:30,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1979035787] [2024-11-14 05:45:30,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:45:30,337 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 05:45:30,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 05:45:30,343 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 05:45:30,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77307333-69f1-4ceb-bac7-68ddc309da56/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-11-14 05:45:30,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:45:30,993 INFO L255 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-14 05:45:30,998 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:47:17,233 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 288 proven. 195 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-14 05:47:17,233 INFO L311 TraceCheckSpWp]: Computing backward predicates...