./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-0.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_885233dc-af1d-443a-bc17-be749a39a586/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_885233dc-af1d-443a-bc17-be749a39a586/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_885233dc-af1d-443a-bc17-be749a39a586/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_885233dc-af1d-443a-bc17-be749a39a586/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-0.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_885233dc-af1d-443a-bc17-be749a39a586/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_885233dc-af1d-443a-bc17-be749a39a586/bin/uautomizer-verify-qhAvR1uOyd --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 828b6f31ac8b338b9524f85315068e4bc72bfadb1d19ff8ea6318f966a3b277a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:22:09,073 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:22:09,187 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_885233dc-af1d-443a-bc17-be749a39a586/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 14:22:09,195 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:22:09,195 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:22:09,240 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:22:09,240 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:22:09,241 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:22:09,241 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:22:09,241 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:22:09,241 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:22:09,241 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:22:09,242 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:22:09,242 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:22:09,242 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:22:09,242 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:22:09,242 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:22:09,242 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:22:09,243 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:22:09,243 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:22:09,246 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:22:09,246 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:22:09,246 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:22:09,246 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:22:09,247 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:22:09,247 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:22:09,247 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:22:09,247 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:22:09,247 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:22:09,247 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:22:09,247 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:22:09,247 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:22:09,247 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:22:09,247 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:22:09,248 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:22:09,248 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:22:09,248 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:22:09,248 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:22:09,248 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:22:09,248 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:22:09,248 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:22:09,248 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:22:09,248 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_885233dc-af1d-443a-bc17-be749a39a586/bin/uautomizer-verify-qhAvR1uOyd 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 -> Automizer 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 -> 828b6f31ac8b338b9524f85315068e4bc72bfadb1d19ff8ea6318f966a3b277a [2024-11-13 14:22:09,667 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:22:09,684 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:22:09,687 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:22:09,689 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:22:09,689 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:22:09,693 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_885233dc-af1d-443a-bc17-be749a39a586/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-0.i Unable to find full path for "g++" [2024-11-13 14:22:11,664 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:22:12,031 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:22:12,036 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_885233dc-af1d-443a-bc17-be749a39a586/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-0.i [2024-11-13 14:22:12,061 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_885233dc-af1d-443a-bc17-be749a39a586/bin/uautomizer-verify-qhAvR1uOyd/data/cee9145c2/855851b76a0643fba361792edcfa0bae/FLAG4c04d3650 [2024-11-13 14:22:12,094 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_885233dc-af1d-443a-bc17-be749a39a586/bin/uautomizer-verify-qhAvR1uOyd/data/cee9145c2/855851b76a0643fba361792edcfa0bae [2024-11-13 14:22:12,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:22:12,098 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:22:12,102 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:22:12,103 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:22:12,113 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:22:12,114 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:22:12" (1/1) ... [2024-11-13 14:22:12,115 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7586ebbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:12, skipping insertion in model container [2024-11-13 14:22:12,116 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:22:12" (1/1) ... [2024-11-13 14:22:12,143 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:22:12,344 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_885233dc-af1d-443a-bc17-be749a39a586/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-0.i[914,927] [2024-11-13 14:22:12,420 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:22:12,438 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:22:12,455 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_885233dc-af1d-443a-bc17-be749a39a586/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-0.i[914,927] [2024-11-13 14:22:12,492 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:22:12,518 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:22:12,519 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:12 WrapperNode [2024-11-13 14:22:12,519 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:22:12,520 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:22:12,521 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:22:12,521 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:22:12,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:12" (1/1) ... [2024-11-13 14:22:12,544 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:12" (1/1) ... [2024-11-13 14:22:12,586 INFO L138 Inliner]: procedures = 26, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 93 [2024-11-13 14:22:12,587 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:22:12,588 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:22:12,588 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:22:12,589 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:22:12,601 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:12" (1/1) ... [2024-11-13 14:22:12,601 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:12" (1/1) ... [2024-11-13 14:22:12,604 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:12" (1/1) ... [2024-11-13 14:22:12,623 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 14:22:12,627 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:12" (1/1) ... [2024-11-13 14:22:12,627 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:12" (1/1) ... [2024-11-13 14:22:12,638 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:12" (1/1) ... [2024-11-13 14:22:12,646 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:12" (1/1) ... [2024-11-13 14:22:12,649 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:12" (1/1) ... [2024-11-13 14:22:12,650 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:12" (1/1) ... [2024-11-13 14:22:12,656 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:22:12,657 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:22:12,661 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:22:12,661 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:22:12,662 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:12" (1/1) ... [2024-11-13 14:22:12,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:22:12,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_885233dc-af1d-443a-bc17-be749a39a586/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:22:12,706 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_885233dc-af1d-443a-bc17-be749a39a586/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:22:12,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_885233dc-af1d-443a-bc17-be749a39a586/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:22:12,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:22:12,747 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 14:22:12,747 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 14:22:12,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 14:22:12,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:22:12,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:22:12,859 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:22:12,861 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:22:13,222 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-11-13 14:22:13,222 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:22:13,233 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:22:13,234 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 14:22:13,234 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:22:13 BoogieIcfgContainer [2024-11-13 14:22:13,234 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:22:13,237 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:22:13,238 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:22:13,244 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:22:13,244 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:22:12" (1/3) ... [2024-11-13 14:22:13,245 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@645208d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:22:13, skipping insertion in model container [2024-11-13 14:22:13,245 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:12" (2/3) ... [2024-11-13 14:22:13,246 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@645208d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:22:13, skipping insertion in model container [2024-11-13 14:22:13,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:22:13" (3/3) ... [2024-11-13 14:22:13,248 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-0.i [2024-11-13 14:22:13,270 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:22:13,272 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-0.i that has 2 procedures, 44 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 14:22:13,365 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:22:13,380 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=PETRI_NET, 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;@4b91e27d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:22:13,380 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 14:22:13,385 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 32 states have (on average 1.375) internal successors, (44), 33 states have internal predecessors, (44), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-13 14:22:13,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-13 14:22:13,397 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:22:13,398 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:22:13,398 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:22:13,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:22:13,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1998707857, now seen corresponding path program 1 times [2024-11-13 14:22:13,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:22:13,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25034317] [2024-11-13 14:22:13,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:22:13,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:22:13,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:22:13,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:22:13,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:22:13,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:22:13,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:22:13,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-13 14:22:13,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:22:13,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 14:22:13,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:22:13,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-13 14:22:13,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:22:13,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-13 14:22:13,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:22:13,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 14:22:13,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:22:13,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-13 14:22:13,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:22:13,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-13 14:22:13,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:22:13,727 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-13 14:22:13,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:22:13,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25034317] [2024-11-13 14:22:13,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25034317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:22:13,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:22:13,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:22:13,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926117366] [2024-11-13 14:22:13,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:22:13,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 14:22:13,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:22:13,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 14:22:13,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 14:22:13,784 INFO L87 Difference]: Start difference. First operand has 44 states, 32 states have (on average 1.375) internal successors, (44), 33 states have internal predecessors, (44), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-13 14:22:13,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:22:13,823 INFO L93 Difference]: Finished difference Result 85 states and 130 transitions. [2024-11-13 14:22:13,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 14:22:13,827 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 66 [2024-11-13 14:22:13,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:22:13,838 INFO L225 Difference]: With dead ends: 85 [2024-11-13 14:22:13,838 INFO L226 Difference]: Without dead ends: 40 [2024-11-13 14:22:13,844 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 29 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 14:22:13,849 INFO L432 NwaCegarLoop]: 59 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, 59 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 14:22:13,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:22:13,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-13 14:22:13,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2024-11-13 14:22:13,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 29 states have internal predecessors, (37), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-13 14:22:13,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 55 transitions. [2024-11-13 14:22:13,916 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 55 transitions. Word has length 66 [2024-11-13 14:22:13,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:22:13,919 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 55 transitions. [2024-11-13 14:22:13,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-13 14:22:13,920 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 55 transitions. [2024-11-13 14:22:13,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-13 14:22:13,925 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:22:13,925 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:22:13,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 14:22:13,926 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:22:13,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:22:13,926 INFO L85 PathProgramCache]: Analyzing trace with hash -202648591, now seen corresponding path program 1 times [2024-11-13 14:22:13,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:22:13,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461141346] [2024-11-13 14:22:13,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:22:13,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:22:14,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:22:14,137 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:22:14,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:22:14,285 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:22:14,286 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 14:22:14,288 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 14:22:14,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 14:22:14,295 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-13 14:22:14,350 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 14:22:14,354 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 02:22:14 BoogieIcfgContainer [2024-11-13 14:22:14,354 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 14:22:14,355 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 14:22:14,355 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 14:22:14,355 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 14:22:14,356 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:22:13" (3/4) ... [2024-11-13 14:22:14,359 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 14:22:14,360 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 14:22:14,361 INFO L158 Benchmark]: Toolchain (without parser) took 2262.37ms. Allocated memory is still 117.4MB. Free memory was 94.4MB in the beginning and 81.2MB in the end (delta: 13.2MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2024-11-13 14:22:14,361 INFO L158 Benchmark]: CDTParser took 0.58ms. Allocated memory is still 142.6MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:22:14,362 INFO L158 Benchmark]: CACSL2BoogieTranslator took 417.33ms. Allocated memory is still 117.4MB. Free memory was 94.2MB in the beginning and 82.2MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:22:14,362 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.65ms. Allocated memory is still 117.4MB. Free memory was 82.2MB in the beginning and 80.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:22:14,366 INFO L158 Benchmark]: Boogie Preprocessor took 67.92ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 78.8MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:22:14,367 INFO L158 Benchmark]: RCFGBuilder took 577.61ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 65.3MB in the end (delta: 13.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:22:14,367 INFO L158 Benchmark]: TraceAbstraction took 1116.70ms. Allocated memory is still 117.4MB. Free memory was 64.5MB in the beginning and 81.8MB in the end (delta: -17.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:22:14,368 INFO L158 Benchmark]: Witness Printer took 5.00ms. Allocated memory is still 117.4MB. Free memory was 81.8MB in the beginning and 81.2MB in the end (delta: 586.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:22:14,373 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58ms. Allocated memory is still 142.6MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 417.33ms. Allocated memory is still 117.4MB. Free memory was 94.2MB in the beginning and 82.2MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.65ms. Allocated memory is still 117.4MB. Free memory was 82.2MB in the beginning and 80.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 67.92ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 78.8MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 577.61ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 65.3MB in the end (delta: 13.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1116.70ms. Allocated memory is still 117.4MB. Free memory was 64.5MB in the beginning and 81.8MB in the end (delta: -17.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.00ms. Allocated memory is still 117.4MB. Free memory was 81.8MB in the beginning and 81.2MB in the end (delta: 586.4kB). 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 someBinaryArithmeticDOUBLEoperation at line 36, overapproximation of someBinaryFLOATComparisonOperation at line 73, overapproximation of someBinaryFLOATComparisonOperation at line 77, overapproximation of someBinaryFLOATComparisonOperation at line 75, overapproximation of someBinaryFLOATComparisonOperation at line 82, overapproximation of someBinaryDOUBLEComparisonOperation at line 68, overapproximation of someBinaryDOUBLEComparisonOperation at line 48, overapproximation of someBinaryDOUBLEComparisonOperation at line 50, overapproximation of someBinaryDOUBLEComparisonOperation at line 40, overapproximation of someBinaryDOUBLEComparisonOperation at line 66, overapproximation of someBinaryDOUBLEComparisonOperation at line 82. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 25.8; [L23] unsigned char var_1_2 = 1; [L24] double var_1_3 = 128.2; [L25] double var_1_4 = 15.4; [L26] double var_1_5 = 5.25; [L27] unsigned char var_1_6 = 0; [L28] float var_1_7 = 8.125; [L29] float var_1_8 = 0.4; [L30] float var_1_9 = 499.4; [L31] float var_1_10 = 63.16; VAL [isInitial=0, var_1_10=1579/25, var_1_1=129/5, var_1_2=1, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L86] isInitial = 1 [L87] FCALL initially() [L88] int k_loop; [L89] k_loop = 0 VAL [isInitial=1, k_loop=0, var_1_10=1579/25, var_1_1=129/5, var_1_2=1, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L89] COND TRUE k_loop < 1 [L90] FCALL updateLastVariables() [L91] CALL updateVariables() [L62] var_1_2 = __VERIFIER_nondet_uchar() [L63] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L63] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L64] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L64] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_3=641/5, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L65] var_1_3 = __VERIFIER_nondet_double() [L66] CALL assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L66] RET assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_4=77/5, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L67] var_1_4 = __VERIFIER_nondet_double() [L68] CALL assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L68] RET assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=0, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L69] var_1_6 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L70] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L71] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L71] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8, var_1_8=2/5, var_1_9=2497/5] [L72] var_1_8 = __VERIFIER_nondet_float() [L73] CALL assume_abort_if_not((var_1_8 >= 0.0F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 4611686.018427382800e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8, var_1_9=2497/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8, var_1_9=2497/5] [L73] RET assume_abort_if_not((var_1_8 >= 0.0F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 4611686.018427382800e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8, var_1_9=2497/5] [L74] var_1_9 = __VERIFIER_nondet_float() [L75] CALL assume_abort_if_not((var_1_9 >= 0.0F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 4611686.018427382800e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8] [L75] RET assume_abort_if_not((var_1_9 >= 0.0F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 4611686.018427382800e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1579/25, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8] [L76] var_1_10 = __VERIFIER_nondet_float() [L77] CALL assume_abort_if_not((var_1_10 >= -461168.6018427382800e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427382800e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8] [L77] RET assume_abort_if_not((var_1_10 >= -461168.6018427382800e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427382800e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=129/5, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8] [L91] RET updateVariables() [L92] CALL step() [L35] COND TRUE ! var_1_2 [L36] var_1_1 = (var_1_3 - var_1_4) VAL [isInitial=1, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8] [L40] unsigned char stepLocal_0 = var_1_4 < var_1_3; VAL [isInitial=1, stepLocal_0=0, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8] [L41] COND FALSE !(stepLocal_0 || var_1_2) VAL [isInitial=1, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8] [L48] unsigned char stepLocal_1 = var_1_1 <= (var_1_1 + var_1_3); VAL [isInitial=1, stepLocal_1=1, var_1_2=0, var_1_5=21/4, var_1_6=1, var_1_7=65/8] [L49] COND TRUE var_1_2 || stepLocal_1 [L50] var_1_7 = ((((5.5f) < (((((128.4f) > (var_1_3)) ? (128.4f) : (var_1_3))))) ? (5.5f) : (((((128.4f) > (var_1_3)) ? (128.4f) : (var_1_3)))))) VAL [isInitial=1, var_1_2=0, var_1_3=642/5, var_1_5=21/4, var_1_6=1, var_1_7=642/5] [L92] RET step() [L93] CALL, EXPR property() [L82-L83] return (((! var_1_2) ? (var_1_1 == ((double) (var_1_3 - var_1_4))) : (var_1_1 == ((double) ((((16.2) < (var_1_3)) ? (16.2) : (var_1_3)))))) && (((var_1_4 < var_1_3) || var_1_2) ? (var_1_2 ? (var_1_6 ? (var_1_5 == ((double) var_1_3)) : 1) : 1) : 1)) && ((var_1_2 || (var_1_1 <= (var_1_1 + var_1_3))) ? (var_1_7 == ((float) ((((5.5f) < (((((128.4f) > (var_1_3)) ? (128.4f) : (var_1_3))))) ? (5.5f) : (((((128.4f) > (var_1_3)) ? (128.4f) : (var_1_3)))))))) : (var_1_6 ? (var_1_7 == ((float) ((var_1_8 - var_1_9) + var_1_10))) : (var_1_2 ? (var_1_7 == ((float) var_1_9)) : 1))) ; VAL [\result=0, isInitial=1, var_1_2=0, var_1_3=642/5, var_1_5=21/4, var_1_6=1, var_1_7=642/5] [L93] RET, EXPR property() [L93] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_2=0, var_1_3=642/5, var_1_5=21/4, var_1_6=1, var_1_7=642/5] [L19] reach_error() VAL [isInitial=1, var_1_2=0, var_1_3=642/5, var_1_5=21/4, var_1_6=1, var_1_7=642/5] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 59 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 59 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 132 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 65 ConstructedInterpolants, 0 QuantifiedInterpolants, 65 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 144/144 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 14:22:14,404 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_885233dc-af1d-443a-bc17-be749a39a586/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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_885233dc-af1d-443a-bc17-be749a39a586/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_885233dc-af1d-443a-bc17-be749a39a586/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_885233dc-af1d-443a-bc17-be749a39a586/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_885233dc-af1d-443a-bc17-be749a39a586/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-0.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_885233dc-af1d-443a-bc17-be749a39a586/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_885233dc-af1d-443a-bc17-be749a39a586/bin/uautomizer-verify-qhAvR1uOyd --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 828b6f31ac8b338b9524f85315068e4bc72bfadb1d19ff8ea6318f966a3b277a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:22:17,677 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:22:17,829 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_885233dc-af1d-443a-bc17-be749a39a586/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-13 14:22:17,841 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:22:17,841 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:22:17,914 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:22:17,915 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:22:17,915 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:22:17,915 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:22:17,916 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:22:17,916 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:22:17,916 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:22:17,916 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:22:17,916 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:22:17,917 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:22:17,917 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:22:17,922 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:22:17,922 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:22:17,923 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:22:17,923 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:22:17,923 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:22:17,923 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:22:17,923 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:22:17,924 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 14:22:17,924 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 14:22:17,924 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:22:17,924 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 14:22:17,924 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:22:17,924 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:22:17,925 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:22:17,925 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:22:17,925 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:22:17,925 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:22:17,925 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:22:17,935 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:22:17,935 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:22:17,936 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:22:17,936 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:22:17,936 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 14:22:17,936 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 14:22:17,936 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:22:17,936 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:22:17,936 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:22:17,936 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:22:17,936 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_885233dc-af1d-443a-bc17-be749a39a586/bin/uautomizer-verify-qhAvR1uOyd 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 -> Automizer 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 -> 828b6f31ac8b338b9524f85315068e4bc72bfadb1d19ff8ea6318f966a3b277a [2024-11-13 14:22:18,337 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:22:18,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:22:18,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:22:18,358 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:22:18,359 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:22:18,364 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_885233dc-af1d-443a-bc17-be749a39a586/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-0.i Unable to find full path for "g++" [2024-11-13 14:22:20,884 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:22:21,324 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:22:21,325 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_885233dc-af1d-443a-bc17-be749a39a586/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-0.i [2024-11-13 14:22:21,335 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_885233dc-af1d-443a-bc17-be749a39a586/bin/uautomizer-verify-qhAvR1uOyd/data/49f3ecfb4/0aa894186d7349b9bd33f93a09db345e/FLAG992c9a08c [2024-11-13 14:22:21,363 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_885233dc-af1d-443a-bc17-be749a39a586/bin/uautomizer-verify-qhAvR1uOyd/data/49f3ecfb4/0aa894186d7349b9bd33f93a09db345e [2024-11-13 14:22:21,366 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:22:21,369 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:22:21,371 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:22:21,371 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:22:21,379 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:22:21,380 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:22:21" (1/1) ... [2024-11-13 14:22:21,382 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46264123 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:21, skipping insertion in model container [2024-11-13 14:22:21,382 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:22:21" (1/1) ... [2024-11-13 14:22:21,410 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:22:21,613 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_885233dc-af1d-443a-bc17-be749a39a586/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-0.i[914,927] [2024-11-13 14:22:21,663 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:22:21,687 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:22:21,703 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_885233dc-af1d-443a-bc17-be749a39a586/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-0.i[914,927] [2024-11-13 14:22:21,750 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:22:21,781 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:22:21,782 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:21 WrapperNode [2024-11-13 14:22:21,782 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:22:21,783 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:22:21,784 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:22:21,784 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:22:21,793 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:21" (1/1) ... [2024-11-13 14:22:21,812 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:21" (1/1) ... [2024-11-13 14:22:21,853 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 93 [2024-11-13 14:22:21,853 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:22:21,854 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:22:21,854 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:22:21,854 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:22:21,871 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:21" (1/1) ... [2024-11-13 14:22:21,871 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:21" (1/1) ... [2024-11-13 14:22:21,876 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:21" (1/1) ... [2024-11-13 14:22:21,900 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 14:22:21,900 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:21" (1/1) ... [2024-11-13 14:22:21,900 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:21" (1/1) ... [2024-11-13 14:22:21,911 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:21" (1/1) ... [2024-11-13 14:22:21,916 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:21" (1/1) ... [2024-11-13 14:22:21,924 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:21" (1/1) ... [2024-11-13 14:22:21,926 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:21" (1/1) ... [2024-11-13 14:22:21,933 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:22:21,934 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:22:21,934 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:22:21,934 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:22:21,936 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:21" (1/1) ... [2024-11-13 14:22:21,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:22:21,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_885233dc-af1d-443a-bc17-be749a39a586/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:22:21,973 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_885233dc-af1d-443a-bc17-be749a39a586/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:22:21,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_885233dc-af1d-443a-bc17-be749a39a586/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:22:22,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:22:22,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 14:22:22,013 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 14:22:22,013 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 14:22:22,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:22:22,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:22:22,098 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:22:22,100 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:22:24,905 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-11-13 14:22:24,905 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:22:24,918 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:22:24,918 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 14:22:24,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:22:24 BoogieIcfgContainer [2024-11-13 14:22:24,919 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:22:24,923 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:22:24,923 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:22:24,930 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:22:24,931 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:22:21" (1/3) ... [2024-11-13 14:22:24,931 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ca1bdf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:22:24, skipping insertion in model container [2024-11-13 14:22:24,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:21" (2/3) ... [2024-11-13 14:22:24,932 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ca1bdf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:22:24, skipping insertion in model container [2024-11-13 14:22:24,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:22:24" (3/3) ... [2024-11-13 14:22:24,933 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-0.i [2024-11-13 14:22:24,949 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:22:24,950 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-0.i that has 2 procedures, 44 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 14:22:25,012 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:22:25,026 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=PETRI_NET, 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;@73618f11, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:22:25,026 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 14:22:25,031 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 32 states have (on average 1.375) internal successors, (44), 33 states have internal predecessors, (44), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-13 14:22:25,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-13 14:22:25,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:22:25,043 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:22:25,044 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:22:25,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:22:25,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1998707857, now seen corresponding path program 1 times [2024-11-13 14:22:25,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:22:25,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [14805390] [2024-11-13 14:22:25,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:22:25,067 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 14:22:25,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_885233dc-af1d-443a-bc17-be749a39a586/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:22:25,077 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_885233dc-af1d-443a-bc17-be749a39a586/bin/uautomizer-verify-qhAvR1uOyd/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 14:22:25,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_885233dc-af1d-443a-bc17-be749a39a586/bin/uautomizer-verify-qhAvR1uOyd/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 14:22:25,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:22:25,760 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 14:22:25,767 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:22:25,830 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-13 14:22:25,831 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:22:25,831 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:22:25,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [14805390] [2024-11-13 14:22:25,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [14805390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:22:25,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:22:25,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:22:25,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805562026] [2024-11-13 14:22:25,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:22:25,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 14:22:25,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:22:25,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 14:22:25,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 14:22:25,872 INFO L87 Difference]: Start difference. First operand has 44 states, 32 states have (on average 1.375) internal successors, (44), 33 states have internal predecessors, (44), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-13 14:22:25,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:22:25,907 INFO L93 Difference]: Finished difference Result 85 states and 130 transitions. [2024-11-13 14:22:25,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 14:22:25,911 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 66 [2024-11-13 14:22:25,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:22:25,920 INFO L225 Difference]: With dead ends: 85 [2024-11-13 14:22:25,920 INFO L226 Difference]: Without dead ends: 40 [2024-11-13 14:22:25,925 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 65 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 14:22:25,930 INFO L432 NwaCegarLoop]: 59 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, 59 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 14:22:25,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:22:25,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-13 14:22:25,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2024-11-13 14:22:25,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 29 states have internal predecessors, (37), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-13 14:22:25,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 55 transitions. [2024-11-13 14:22:25,980 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 55 transitions. Word has length 66 [2024-11-13 14:22:25,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:22:25,981 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 55 transitions. [2024-11-13 14:22:25,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-13 14:22:25,981 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 55 transitions. [2024-11-13 14:22:25,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-13 14:22:25,986 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:22:25,986 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:22:26,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_885233dc-af1d-443a-bc17-be749a39a586/bin/uautomizer-verify-qhAvR1uOyd/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 [2024-11-13 14:22:26,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_885233dc-af1d-443a-bc17-be749a39a586/bin/uautomizer-verify-qhAvR1uOyd/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 14:22:26,187 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:22:26,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:22:26,188 INFO L85 PathProgramCache]: Analyzing trace with hash -202648591, now seen corresponding path program 1 times [2024-11-13 14:22:26,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:22:26,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [230555307] [2024-11-13 14:22:26,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:22:26,189 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 14:22:26,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_885233dc-af1d-443a-bc17-be749a39a586/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:22:26,192 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_885233dc-af1d-443a-bc17-be749a39a586/bin/uautomizer-verify-qhAvR1uOyd/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 14:22:26,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_885233dc-af1d-443a-bc17-be749a39a586/bin/uautomizer-verify-qhAvR1uOyd/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 14:22:26,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:22:26,756 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-13 14:22:26,765 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:22:45,373 WARN L286 SmtUtils]: Spent 5.63s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 14:22:50,575 WARN L286 SmtUtils]: Spent 5.20s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 14:23:15,227 WARN L286 SmtUtils]: Spent 16.18s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 14:24:00,251 WARN L286 SmtUtils]: Spent 9.09s on a formula simplification that was a NOOP. DAG size: 28 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)