./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-95.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_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/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_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-95.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/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_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/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 3442f54d5785e9768eb7f88cd413fd9c7dba46be6797add4a456091558b62cb1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:42:34,685 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:42:34,773 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-13 23:42:34,780 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:42:34,780 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:42:34,814 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:42:34,815 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:42:34,815 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:42:34,816 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:42:34,816 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:42:34,817 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:42:34,818 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:42:34,818 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:42:34,818 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-13 23:42:34,818 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:42:34,818 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:42:34,818 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-13 23:42:34,818 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-13 23:42:34,818 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:42:34,818 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-13 23:42:34,818 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-13 23:42:34,818 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-13 23:42:34,819 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:42:34,819 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:42:34,819 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:42:34,819 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:42:34,819 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:42:34,819 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:42:34,819 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:42:34,819 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:42:34,819 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:42:34,820 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:42:34,820 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:42:34,820 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:42:34,820 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:42:34,820 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:42:34,820 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:42:34,820 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:42:34,820 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:42:34,820 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:42:34,820 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:42:34,820 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:42:34,821 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-13 23:42:34,821 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:42:34,821 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:42:34,821 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:42:34,821 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 23:42:34,821 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_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/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 -> 3442f54d5785e9768eb7f88cd413fd9c7dba46be6797add4a456091558b62cb1 [2024-11-13 23:42:35,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:42:35,161 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:42:35,163 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:42:35,165 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:42:35,166 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:42:35,167 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-95.i Unable to find full path for "g++" [2024-11-13 23:42:37,014 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:42:37,295 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:42:37,296 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-95.i [2024-11-13 23:42:37,307 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/bin/utaipan-verify-sOmjnqqW8E/data/5c0508547/0fccb9dc6a3742debd0268a9f443715f/FLAGf6ce1ea15 [2024-11-13 23:42:37,569 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/bin/utaipan-verify-sOmjnqqW8E/data/5c0508547/0fccb9dc6a3742debd0268a9f443715f [2024-11-13 23:42:37,571 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:42:37,572 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:42:37,573 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:42:37,573 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:42:37,577 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:42:37,578 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:42:37" (1/1) ... [2024-11-13 23:42:37,579 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f933d48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:37, skipping insertion in model container [2024-11-13 23:42:37,579 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:42:37" (1/1) ... [2024-11-13 23:42:37,606 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:42:37,783 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_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-95.i[917,930] [2024-11-13 23:42:37,839 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:42:37,849 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:42:37,859 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_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-95.i[917,930] [2024-11-13 23:42:37,888 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:42:37,903 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:42:37,904 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:37 WrapperNode [2024-11-13 23:42:37,904 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:42:37,905 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:42:37,905 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:42:37,905 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:42:37,912 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:37" (1/1) ... [2024-11-13 23:42:37,920 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:37" (1/1) ... [2024-11-13 23:42:37,963 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 141 [2024-11-13 23:42:37,967 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:42:37,968 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:42:37,968 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:42:37,968 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:42:37,975 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:37" (1/1) ... [2024-11-13 23:42:37,976 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:37" (1/1) ... [2024-11-13 23:42:37,979 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:37" (1/1) ... [2024-11-13 23:42:37,979 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:37" (1/1) ... [2024-11-13 23:42:37,987 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:37" (1/1) ... [2024-11-13 23:42:37,990 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:37" (1/1) ... [2024-11-13 23:42:37,993 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:37" (1/1) ... [2024-11-13 23:42:37,999 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:37" (1/1) ... [2024-11-13 23:42:38,003 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:42:38,004 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:42:38,007 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:42:38,007 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:42:38,008 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:37" (1/1) ... [2024-11-13 23:42:38,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:42:38,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:42:38,048 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:42:38,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:42:38,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:42:38,082 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 23:42:38,082 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 23:42:38,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 23:42:38,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:42:38,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:42:38,169 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:42:38,170 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:42:38,529 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-11-13 23:42:38,529 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:42:38,842 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:42:38,842 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 23:42:38,843 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:42:38 BoogieIcfgContainer [2024-11-13 23:42:38,843 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:42:38,845 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 23:42:38,845 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 23:42:38,850 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 23:42:38,850 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:42:37" (1/3) ... [2024-11-13 23:42:38,851 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3655ef65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:42:38, skipping insertion in model container [2024-11-13 23:42:38,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:37" (2/3) ... [2024-11-13 23:42:38,851 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3655ef65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:42:38, skipping insertion in model container [2024-11-13 23:42:38,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:42:38" (3/3) ... [2024-11-13 23:42:38,853 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-95.i [2024-11-13 23:42:38,869 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 23:42:38,870 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_codestructure_steplocals_file-95.i that has 2 procedures, 33 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 23:42:38,924 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:42:38,936 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;@65daf190, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:42:38,936 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 23:42:38,940 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-13 23:42:38,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-13 23:42:38,948 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:42:38,949 INFO L215 NwaCegarLoop]: trace histogram [15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:42:38,949 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:42:38,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:42:38,954 INFO L85 PathProgramCache]: Analyzing trace with hash -834906578, now seen corresponding path program 1 times [2024-11-13 23:42:38,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:42:38,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029493281] [2024-11-13 23:42:38,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:42:38,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:42:39,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 23:42:39,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [241705471] [2024-11-13 23:42:39,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:42:39,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:42:39,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:42:39,338 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:42:39,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 23:42:39,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:42:39,611 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 23:42:39,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:42:39,940 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-13 23:42:39,942 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 23:42:39,943 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 23:42:39,953 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 23:42:40,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-13 23:42:40,148 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-13 23:42:40,224 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 23:42:40,230 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 11:42:40 BoogieIcfgContainer [2024-11-13 23:42:40,230 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 23:42:40,231 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 23:42:40,231 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 23:42:40,231 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 23:42:40,232 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:42:38" (3/4) ... [2024-11-13 23:42:40,234 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 23:42:40,235 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 23:42:40,236 INFO L158 Benchmark]: Toolchain (without parser) took 2663.92ms. Allocated memory is still 117.4MB. Free memory was 94.4MB in the beginning and 78.2MB in the end (delta: 16.2MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2024-11-13 23:42:40,237 INFO L158 Benchmark]: CDTParser took 0.93ms. Allocated memory is still 142.6MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:42:40,237 INFO L158 Benchmark]: CACSL2BoogieTranslator took 331.68ms. Allocated memory is still 117.4MB. Free memory was 94.1MB in the beginning and 80.7MB in the end (delta: 13.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:42:40,237 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.36ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 77.4MB in the end (delta: 3.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:42:40,238 INFO L158 Benchmark]: Boogie Preprocessor took 34.83ms. Allocated memory is still 117.4MB. Free memory was 77.4MB in the beginning and 75.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:42:40,238 INFO L158 Benchmark]: RCFGBuilder took 839.38ms. Allocated memory is still 117.4MB. Free memory was 75.8MB in the beginning and 79.1MB in the end (delta: -3.2MB). Peak memory consumption was 47.0MB. Max. memory is 16.1GB. [2024-11-13 23:42:40,238 INFO L158 Benchmark]: TraceAbstraction took 1385.43ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 78.2MB in the end (delta: 254.0kB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. [2024-11-13 23:42:40,239 INFO L158 Benchmark]: Witness Printer took 4.21ms. Allocated memory is still 117.4MB. Free memory was 78.2MB in the beginning and 78.2MB in the end (delta: 11.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:42:40,241 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.93ms. Allocated memory is still 142.6MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 331.68ms. Allocated memory is still 117.4MB. Free memory was 94.1MB in the beginning and 80.7MB in the end (delta: 13.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.36ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 77.4MB in the end (delta: 3.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.83ms. Allocated memory is still 117.4MB. Free memory was 77.4MB in the beginning and 75.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 839.38ms. Allocated memory is still 117.4MB. Free memory was 75.8MB in the beginning and 79.1MB in the end (delta: -3.2MB). Peak memory consumption was 47.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1385.43ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 78.2MB in the end (delta: 254.0kB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. * Witness Printer took 4.21ms. Allocated memory is still 117.4MB. Free memory was 78.2MB in the beginning and 78.2MB in the end (delta: 11.7kB). 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 105, overapproximation of someBinaryFLOATComparisonOperation at line 110, overapproximation of bitwiseOr at line 66, overapproximation of someBinaryDOUBLEComparisonOperation at line 103, overapproximation of someBinaryDOUBLEComparisonOperation at line 83, overapproximation of someBinaryDOUBLEComparisonOperation at line 40, overapproximation of someBinaryDOUBLEComparisonOperation at line 85, overapproximation of someBinaryDOUBLEComparisonOperation at line 102. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 32; [L23] double var_1_2 = 32.25; [L24] double var_1_3 = 16.5; [L25] unsigned char var_1_4 = 10; [L26] unsigned char var_1_5 = 100; [L27] unsigned char var_1_6 = 1; [L28] signed char var_1_7 = -5; [L29] unsigned char var_1_8 = 0; [L30] signed char var_1_9 = -10; [L31] signed short int var_1_10 = 64; [L32] unsigned short int var_1_11 = 0; [L33] float var_1_12 = 64.75; [L34] double var_1_13 = 5.4; [L35] float var_1_14 = 5.625; [L36] unsigned long int var_1_15 = 32; [L114] isInitial = 1 [L115] FCALL initially() [L116] COND TRUE 1 [L117] FCALL updateLastVariables() [L118] CALL updateVariables() [L82] var_1_2 = __VERIFIER_nondet_double() [L83] CALL assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_3=33/2, var_1_4=10, var_1_5=100, var_1_6=1, var_1_7=-5, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_3=33/2, var_1_4=10, var_1_5=100, var_1_6=1, var_1_7=-5, var_1_8=0, var_1_9=-10] [L84] var_1_3 = __VERIFIER_nondet_double() [L85] CALL assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=10, var_1_5=100, var_1_6=1, var_1_7=-5, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=10, var_1_5=100, var_1_6=1, var_1_7=-5, var_1_8=0, var_1_9=-10] [L86] var_1_4 = __VERIFIER_nondet_uchar() [L87] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_5=100, var_1_6=1, var_1_7=-5, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_5=100, var_1_6=1, var_1_7=-5, var_1_8=0, var_1_9=-10] [L88] CALL assume_abort_if_not(var_1_4 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=127, var_1_5=100, var_1_6=1, var_1_7=-5, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_4 <= 127) VAL [isInitial=1, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=127, var_1_5=100, var_1_6=1, var_1_7=-5, var_1_8=0, var_1_9=-10] [L89] var_1_5 = __VERIFIER_nondet_uchar() [L90] CALL assume_abort_if_not(var_1_5 >= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=127, var_1_5=63, var_1_6=1, var_1_7=-5, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_5 >= 63) VAL [isInitial=1, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=127, var_1_5=63, var_1_6=1, var_1_7=-5, var_1_8=0, var_1_9=-10] [L91] CALL assume_abort_if_not(var_1_5 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=127, var_1_5=63, var_1_6=1, var_1_7=-5, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_5 <= 127) VAL [isInitial=1, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=127, var_1_5=63, var_1_6=1, var_1_7=-5, var_1_8=0, var_1_9=-10] [L92] var_1_6 = __VERIFIER_nondet_uchar() [L93] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=127, var_1_5=63, var_1_7=-5, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=127, var_1_5=63, var_1_7=-5, var_1_8=0, var_1_9=-10] [L94] CALL assume_abort_if_not(var_1_6 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=127, var_1_5=63, var_1_6=-256, var_1_7=-5, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(var_1_6 <= 63) VAL [isInitial=1, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=127, var_1_5=63, var_1_6=-256, var_1_7=-5, var_1_8=0, var_1_9=-10] [L95] var_1_8 = __VERIFIER_nondet_uchar() [L96] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=127, var_1_5=63, var_1_6=-256, var_1_7=-5, var_1_9=-10] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=127, var_1_5=63, var_1_6=-256, var_1_7=-5, var_1_9=-10] [L97] CALL assume_abort_if_not(var_1_8 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=127, var_1_5=63, var_1_6=-256, var_1_7=-5, var_1_8=-255, var_1_9=-10] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not(var_1_8 <= 1) VAL [isInitial=1, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=127, var_1_5=63, var_1_6=-256, var_1_7=-5, var_1_8=-255, var_1_9=-10] [L98] var_1_9 = __VERIFIER_nondet_char() [L99] CALL assume_abort_if_not(var_1_9 >= -63) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=127, var_1_5=63, var_1_6=-256, var_1_7=-5, var_1_8=-255, var_1_9=-63] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not(var_1_9 >= -63) VAL [isInitial=1, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=127, var_1_5=63, var_1_6=-256, var_1_7=-5, var_1_8=-255, var_1_9=-63] [L100] CALL assume_abort_if_not(var_1_9 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=127, var_1_5=63, var_1_6=-256, var_1_7=-5, var_1_8=-255, var_1_9=-63] [L20] COND FALSE !(!cond) [L100] RET assume_abort_if_not(var_1_9 <= 63) VAL [isInitial=1, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=127, var_1_5=63, var_1_6=-256, var_1_7=-5, var_1_8=-255, var_1_9=-63] [L101] var_1_13 = __VERIFIER_nondet_double() [L102] CALL assume_abort_if_not((var_1_13 >= -922337.2036854776000e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=127, var_1_5=63, var_1_6=-256, var_1_7=-5, var_1_8=-255, var_1_9=-63] [L20] COND FALSE !(!cond) [L102] RET assume_abort_if_not((var_1_13 >= -922337.2036854776000e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=127, var_1_5=63, var_1_6=-256, var_1_7=-5, var_1_8=-255, var_1_9=-63] [L103] CALL assume_abort_if_not(var_1_13 != 0.0F) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=127, var_1_5=63, var_1_6=-256, var_1_7=-5, var_1_8=-255, var_1_9=-63] [L20] COND FALSE !(!cond) [L103] RET assume_abort_if_not(var_1_13 != 0.0F) VAL [isInitial=1, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_4=127, var_1_5=63, var_1_6=-256, var_1_7=-5, var_1_8=-255, var_1_9=-63] [L104] var_1_14 = __VERIFIER_nondet_float() [L105] CALL assume_abort_if_not((var_1_14 >= -922337.2036854765600e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_15=32, var_1_1=32, var_1_4=127, var_1_5=63, var_1_6=-256, var_1_7=-5, var_1_8=-255, var_1_9=-63] [L20] COND FALSE !(!cond) [L105] RET assume_abort_if_not((var_1_14 >= -922337.2036854765600e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_15=32, var_1_1=32, var_1_4=127, var_1_5=63, var_1_6=-256, var_1_7=-5, var_1_8=-255, var_1_9=-63] [L118] RET updateVariables() [L119] CALL step() [L40] COND TRUE (10.8 + var_1_2) <= (- var_1_3) [L41] var_1_1 = (((((1) < (var_1_4)) ? (1) : (var_1_4))) + (var_1_5 - var_1_6)) [L43] COND TRUE (var_1_5 <= var_1_4) && var_1_8 [L44] COND TRUE \read(var_1_8) [L45] var_1_7 = (var_1_6 + ((((5) < (var_1_9)) ? (5) : (var_1_9)))) [L56] unsigned char stepLocal_0 = var_1_4; [L57] COND FALSE !(-4 >= stepLocal_0) [L64] var_1_10 = var_1_4 [L66] EXPR var_1_10 ^ var_1_7 [L66] signed long int stepLocal_1 = (var_1_10 ^ var_1_7) / ((((-8) > (var_1_5)) ? (-8) : (var_1_5))); [L67] COND FALSE !((var_1_6 - var_1_1) < stepLocal_1) [L72] COND FALSE !(var_1_2 != (var_1_3 / ((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13))))) [L75] COND TRUE 128 >= var_1_10 [L76] var_1_15 = (var_1_6 + (var_1_4 + var_1_11)) [L119] RET step() [L120] CALL, EXPR property() [L110] EXPR (((((10.8 + var_1_2) <= (- var_1_3)) ? (var_1_1 == ((unsigned char) (((((1) < (var_1_4)) ? (1) : (var_1_4))) + (var_1_5 - var_1_6)))) : 1) && (((var_1_5 <= var_1_4) && var_1_8) ? (var_1_8 ? (var_1_7 == ((signed char) (var_1_6 + ((((5) < (var_1_9)) ? (5) : (var_1_9)))))) : (var_1_7 == ((signed char) ((((var_1_6) < (var_1_9)) ? (var_1_6) : (var_1_9)))))) : (((-8 * var_1_1) < var_1_4) ? (var_1_7 == ((signed char) 1)) : (var_1_7 == ((signed char) var_1_9))))) && ((-4 >= var_1_4) ? ((var_1_3 == var_1_2) ? (var_1_10 == ((signed short int) (var_1_1 + var_1_6))) : (var_1_10 == ((signed short int) var_1_5))) : (var_1_10 == ((signed short int) var_1_4)))) && (((var_1_6 - var_1_1) < ((var_1_10 ^ var_1_7) / ((((-8) > (var_1_5)) ? (-8) : (var_1_5))))) ? ((var_1_3 == var_1_2) ? (var_1_11 == ((unsigned short int) var_1_1)) : 1) : 1) [L110] EXPR var_1_10 ^ var_1_7 [L110] EXPR (((((10.8 + var_1_2) <= (- var_1_3)) ? (var_1_1 == ((unsigned char) (((((1) < (var_1_4)) ? (1) : (var_1_4))) + (var_1_5 - var_1_6)))) : 1) && (((var_1_5 <= var_1_4) && var_1_8) ? (var_1_8 ? (var_1_7 == ((signed char) (var_1_6 + ((((5) < (var_1_9)) ? (5) : (var_1_9)))))) : (var_1_7 == ((signed char) ((((var_1_6) < (var_1_9)) ? (var_1_6) : (var_1_9)))))) : (((-8 * var_1_1) < var_1_4) ? (var_1_7 == ((signed char) 1)) : (var_1_7 == ((signed char) var_1_9))))) && ((-4 >= var_1_4) ? ((var_1_3 == var_1_2) ? (var_1_10 == ((signed short int) (var_1_1 + var_1_6))) : (var_1_10 == ((signed short int) var_1_5))) : (var_1_10 == ((signed short int) var_1_4)))) && (((var_1_6 - var_1_1) < ((var_1_10 ^ var_1_7) / ((((-8) > (var_1_5)) ? (-8) : (var_1_5))))) ? ((var_1_3 == var_1_2) ? (var_1_11 == ((unsigned short int) var_1_1)) : 1) : 1) [L110-L111] return (((((((10.8 + var_1_2) <= (- var_1_3)) ? (var_1_1 == ((unsigned char) (((((1) < (var_1_4)) ? (1) : (var_1_4))) + (var_1_5 - var_1_6)))) : 1) && (((var_1_5 <= var_1_4) && var_1_8) ? (var_1_8 ? (var_1_7 == ((signed char) (var_1_6 + ((((5) < (var_1_9)) ? (5) : (var_1_9)))))) : (var_1_7 == ((signed char) ((((var_1_6) < (var_1_9)) ? (var_1_6) : (var_1_9)))))) : (((-8 * var_1_1) < var_1_4) ? (var_1_7 == ((signed char) 1)) : (var_1_7 == ((signed char) var_1_9))))) && ((-4 >= var_1_4) ? ((var_1_3 == var_1_2) ? (var_1_10 == ((signed short int) (var_1_1 + var_1_6))) : (var_1_10 == ((signed short int) var_1_5))) : (var_1_10 == ((signed short int) var_1_4)))) && (((var_1_6 - var_1_1) < ((var_1_10 ^ var_1_7) / ((((-8) > (var_1_5)) ? (-8) : (var_1_5))))) ? ((var_1_3 == var_1_2) ? (var_1_11 == ((unsigned short int) var_1_1)) : 1) : 1)) && ((var_1_2 != (var_1_3 / ((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13))))) ? (var_1_12 == ((float) var_1_14)) : 1)) && ((128 >= var_1_10) ? (var_1_15 == ((unsigned long int) (var_1_6 + (var_1_4 + var_1_11)))) : (var_1_15 == ((unsigned long int) var_1_1))) ; [L120] RET, EXPR property() [L120] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=127, var_1_11=0, var_1_12=259/4, var_1_14=0, var_1_15=127, var_1_1=64, var_1_4=127, var_1_5=63, var_1_6=-256, var_1_7=-63, var_1_8=-255, var_1_9=-63] [L19] reach_error() VAL [isInitial=1, var_1_10=127, var_1_11=0, var_1_12=259/4, var_1_14=0, var_1_15=127, var_1_1=64, var_1_4=127, var_1_5=63, var_1_6=-256, var_1_7=-63, var_1_8=-255, var_1_9=-63] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 1, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 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 [2024-11-13 23:42:40,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/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_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-95.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/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_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/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 3442f54d5785e9768eb7f88cd413fd9c7dba46be6797add4a456091558b62cb1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:42:42,725 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:42:42,854 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-13 23:42:42,863 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:42:42,863 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:42:42,901 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:42:42,903 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:42:42,903 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:42:42,903 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:42:42,904 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:42:42,904 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:42:42,905 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:42:42,905 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:42:42,905 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:42:42,905 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:42:42,905 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:42:42,905 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:42:42,905 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:42:42,906 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:42:42,906 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:42:42,906 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:42:42,906 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:42:42,906 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:42:42,906 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:42:42,906 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 23:42:42,906 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 23:42:42,906 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:42:42,906 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 23:42:42,906 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:42:42,906 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:42:42,907 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:42:42,907 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:42:42,907 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 23:42:42,907 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:42:42,907 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:42:42,908 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:42:42,908 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:42:42,908 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:42:42,908 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:42:42,909 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 23:42:42,909 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 23:42:42,909 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:42:42,909 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:42:42,909 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_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/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 -> 3442f54d5785e9768eb7f88cd413fd9c7dba46be6797add4a456091558b62cb1 [2024-11-13 23:42:43,282 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:42:43,296 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:42:43,298 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:42:43,302 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:42:43,302 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:42:43,304 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-95.i Unable to find full path for "g++" [2024-11-13 23:42:45,156 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:42:45,420 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:42:45,421 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-95.i [2024-11-13 23:42:45,434 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/bin/utaipan-verify-sOmjnqqW8E/data/85d61fd41/dfef6984bc7b4f04876dfa72b1142cc9/FLAG347cc856b [2024-11-13 23:42:45,742 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/bin/utaipan-verify-sOmjnqqW8E/data/85d61fd41/dfef6984bc7b4f04876dfa72b1142cc9 [2024-11-13 23:42:45,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:42:45,750 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:42:45,751 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:42:45,752 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:42:45,757 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:42:45,758 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:42:45" (1/1) ... [2024-11-13 23:42:45,759 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@301f3b81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:45, skipping insertion in model container [2024-11-13 23:42:45,759 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:42:45" (1/1) ... [2024-11-13 23:42:45,779 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:42:45,922 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_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-95.i[917,930] [2024-11-13 23:42:45,987 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:42:46,000 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:42:46,010 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_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-95.i[917,930] [2024-11-13 23:42:46,037 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:42:46,055 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:42:46,056 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:46 WrapperNode [2024-11-13 23:42:46,056 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:42:46,057 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:42:46,057 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:42:46,057 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:42:46,062 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:46" (1/1) ... [2024-11-13 23:42:46,071 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:46" (1/1) ... [2024-11-13 23:42:46,093 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 114 [2024-11-13 23:42:46,094 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:42:46,094 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:42:46,094 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:42:46,095 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:42:46,102 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:46" (1/1) ... [2024-11-13 23:42:46,102 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:46" (1/1) ... [2024-11-13 23:42:46,105 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:46" (1/1) ... [2024-11-13 23:42:46,106 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:46" (1/1) ... [2024-11-13 23:42:46,114 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:46" (1/1) ... [2024-11-13 23:42:46,118 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:46" (1/1) ... [2024-11-13 23:42:46,120 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:46" (1/1) ... [2024-11-13 23:42:46,121 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:46" (1/1) ... [2024-11-13 23:42:46,124 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:42:46,125 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:42:46,125 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:42:46,125 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:42:46,126 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:46" (1/1) ... [2024-11-13 23:42:46,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:42:46,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:42:46,164 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:42:46,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:42:46,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:42:46,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 23:42:46,191 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 23:42:46,191 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 23:42:46,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:42:46,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:42:46,291 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:42:46,293 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:42:53,190 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-13 23:42:53,190 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:42:53,205 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:42:53,205 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 23:42:53,205 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:42:53 BoogieIcfgContainer [2024-11-13 23:42:53,206 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:42:53,209 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 23:42:53,209 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 23:42:53,214 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 23:42:53,214 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:42:45" (1/3) ... [2024-11-13 23:42:53,215 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a99297b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:42:53, skipping insertion in model container [2024-11-13 23:42:53,215 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:42:46" (2/3) ... [2024-11-13 23:42:53,215 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a99297b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:42:53, skipping insertion in model container [2024-11-13 23:42:53,215 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:42:53" (3/3) ... [2024-11-13 23:42:53,217 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-95.i [2024-11-13 23:42:53,232 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 23:42:53,234 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_codestructure_steplocals_file-95.i that has 2 procedures, 55 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 23:42:53,342 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:42:53,362 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;@4ca99b3c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:42:53,363 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 23:42:53,367 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 38 states have internal predecessors, (52), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-13 23:42:53,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-13 23:42:53,378 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:42:53,379 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:42:53,380 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:42:53,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:42:53,387 INFO L85 PathProgramCache]: Analyzing trace with hash -249468119, now seen corresponding path program 1 times [2024-11-13 23:42:53,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:42:53,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1194577910] [2024-11-13 23:42:53,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:42:53,402 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 [2024-11-13 23:42:53,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:42:53,407 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/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) [2024-11-13 23:42:53,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/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 [2024-11-13 23:42:54,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:42:54,370 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 23:42:54,378 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:42:54,420 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2024-11-13 23:42:54,420 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 23:42:54,421 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-13 23:42:54,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1194577910] [2024-11-13 23:42:54,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1194577910] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:42:54,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:42:54,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:42:54,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225833630] [2024-11-13 23:42:54,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:42:54,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 23:42:54,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-13 23:42:54,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 23:42:54,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 23:42:54,458 INFO L87 Difference]: Start difference. First operand has 55 states, 37 states have (on average 1.4054054054054055) internal successors, (52), 38 states have internal predecessors, (52), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-13 23:42:54,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:42:54,481 INFO L93 Difference]: Finished difference Result 102 states and 171 transitions. [2024-11-13 23:42:54,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 23:42:54,483 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 102 [2024-11-13 23:42:54,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:42:54,490 INFO L225 Difference]: With dead ends: 102 [2024-11-13 23:42:54,490 INFO L226 Difference]: Without dead ends: 50 [2024-11-13 23:42:54,493 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 23:42:54,496 INFO L432 NwaCegarLoop]: 72 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, 72 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 [2024-11-13 23:42:54,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 23:42:54,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-13 23:42:54,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-11-13 23:42:54,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 33 states have internal predecessors, (42), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-13 23:42:54,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 72 transitions. [2024-11-13 23:42:54,533 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 72 transitions. Word has length 102 [2024-11-13 23:42:54,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:42:54,534 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 72 transitions. [2024-11-13 23:42:54,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-13 23:42:54,534 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 72 transitions. [2024-11-13 23:42:54,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-13 23:42:54,537 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:42:54,538 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:42:54,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/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)] Forceful destruction successful, exit code 0 [2024-11-13 23:42:54,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/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 [2024-11-13 23:42:54,739 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:42:54,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:42:54,740 INFO L85 PathProgramCache]: Analyzing trace with hash 72833455, now seen corresponding path program 1 times [2024-11-13 23:42:54,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-13 23:42:54,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [793912153] [2024-11-13 23:42:54,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:42:54,741 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 [2024-11-13 23:42:54,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-13 23:42:54,743 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/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) [2024-11-13 23:42:54,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5ebedf6-c9b9-46e2-b914-6b3a951182f3/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 [2024-11-13 23:42:55,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:42:55,902 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-13 23:42:55,913 INFO L278 TraceCheckSpWp]: Computing forward predicates...