./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-68.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_51911ffa-71a0-4bf2-958d-df6eb4f51adb/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/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_51911ffa-71a0-4bf2-958d-df6eb4f51adb/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-68.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/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_51911ffa-71a0-4bf2-958d-df6eb4f51adb/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 d848ed00fc0d485481470376dd76caee8f421720e20ea964be77cc23ea1203a7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:54:06,302 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:54:06,387 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 14:54:06,393 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:54:06,393 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:54:06,423 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:54:06,423 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:54:06,425 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:54:06,426 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:54:06,426 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:54:06,427 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:54:06,427 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:54:06,428 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:54:06,428 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:54:06,429 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:54:06,429 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:54:06,429 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:54:06,429 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:54:06,429 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:54:06,430 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:54:06,430 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:54:06,430 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:54:06,430 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:54:06,430 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:54:06,430 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:54:06,430 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:54:06,430 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:54:06,430 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:54:06,431 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:54:06,431 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:54:06,431 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:54:06,431 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:54:06,431 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:54:06,431 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:54:06,431 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:54:06,431 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:54:06,432 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:54:06,432 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:54:06,432 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:54:06,432 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:54:06,432 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:54:06,432 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:54:06,432 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_51911ffa-71a0-4bf2-958d-df6eb4f51adb/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 -> d848ed00fc0d485481470376dd76caee8f421720e20ea964be77cc23ea1203a7 [2024-11-13 14:54:06,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:54:06,819 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:54:06,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:54:06,823 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:54:06,823 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:54:06,825 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-68.i Unable to find full path for "g++" [2024-11-13 14:54:08,904 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:54:09,305 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:54:09,310 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-68.i [2024-11-13 14:54:09,330 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/bin/uautomizer-verify-qhAvR1uOyd/data/ff7da2f35/7ceb006536c54d4e8b308de5fb116f95/FLAG6db8b35ba [2024-11-13 14:54:09,355 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/bin/uautomizer-verify-qhAvR1uOyd/data/ff7da2f35/7ceb006536c54d4e8b308de5fb116f95 [2024-11-13 14:54:09,358 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:54:09,362 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:54:09,364 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:54:09,365 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:54:09,375 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:54:09,377 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:54:09" (1/1) ... [2024-11-13 14:54:09,380 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@585bf605 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:54:09, skipping insertion in model container [2024-11-13 14:54:09,381 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:54:09" (1/1) ... [2024-11-13 14:54:09,407 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:54:09,595 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_51911ffa-71a0-4bf2-958d-df6eb4f51adb/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-68.i[917,930] [2024-11-13 14:54:09,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:54:09,695 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:54:09,707 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_51911ffa-71a0-4bf2-958d-df6eb4f51adb/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-68.i[917,930] [2024-11-13 14:54:09,771 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:54:09,798 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:54:09,799 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:54:09 WrapperNode [2024-11-13 14:54:09,800 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:54:09,802 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:54:09,802 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:54:09,802 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:54:09,809 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:54:09" (1/1) ... [2024-11-13 14:54:09,827 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:54:09" (1/1) ... [2024-11-13 14:54:09,887 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 142 [2024-11-13 14:54:09,888 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:54:09,892 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:54:09,892 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:54:09,892 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:54:09,902 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:54:09" (1/1) ... [2024-11-13 14:54:09,903 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:54:09" (1/1) ... [2024-11-13 14:54:09,909 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:54:09" (1/1) ... [2024-11-13 14:54:09,941 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 14:54:09,941 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:54:09" (1/1) ... [2024-11-13 14:54:09,941 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:54:09" (1/1) ... [2024-11-13 14:54:09,955 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:54:09" (1/1) ... [2024-11-13 14:54:09,962 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:54:09" (1/1) ... [2024-11-13 14:54:09,967 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:54:09" (1/1) ... [2024-11-13 14:54:09,973 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:54:09" (1/1) ... [2024-11-13 14:54:09,977 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:54:09,981 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:54:09,984 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:54:09,985 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:54:09,986 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:54:09" (1/1) ... [2024-11-13 14:54:09,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:54:10,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:54:10,026 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:54:10,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:54:10,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:54:10,063 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 14:54:10,063 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 14:54:10,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 14:54:10,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:54:10,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:54:10,160 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:54:10,162 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:54:10,650 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-13 14:54:10,650 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:54:10,661 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:54:10,661 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 14:54:10,662 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:54:10 BoogieIcfgContainer [2024-11-13 14:54:10,662 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:54:10,665 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:54:10,665 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:54:10,669 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:54:10,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:54:09" (1/3) ... [2024-11-13 14:54:10,670 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f87b869 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:54:10, skipping insertion in model container [2024-11-13 14:54:10,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:54:09" (2/3) ... [2024-11-13 14:54:10,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f87b869 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:54:10, skipping insertion in model container [2024-11-13 14:54:10,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:54:10" (3/3) ... [2024-11-13 14:54:10,672 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-68.i [2024-11-13 14:54:10,692 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:54:10,694 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_codestructure_steplocals_file-68.i that has 2 procedures, 67 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 14:54:10,776 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:54:10,795 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;@5f6e5059, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:54:10,796 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 14:54:10,801 INFO L276 IsEmpty]: Start isEmpty. Operand has 67 states, 48 states have (on average 1.4375) internal successors, (69), 49 states have internal predecessors, (69), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-13 14:54:10,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-13 14:54:10,817 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:54:10,818 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:54:10,819 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:54:10,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:10,824 INFO L85 PathProgramCache]: Analyzing trace with hash 748895282, now seen corresponding path program 1 times [2024-11-13 14:54:10,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:54:10,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746959302] [2024-11-13 14:54:10,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:10,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:54:10,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:11,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:54:11,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:11,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:54:11,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:11,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-13 14:54:11,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:11,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-13 14:54:11,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:11,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-13 14:54:11,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:11,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:54:11,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:11,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-13 14:54:11,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:11,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-13 14:54:11,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:11,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-13 14:54:11,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:11,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-13 14:54:11,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:11,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 14:54:11,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:11,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:54:11,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:11,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-13 14:54:11,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:11,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-13 14:54:11,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:11,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-13 14:54:11,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:11,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-13 14:54:11,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:11,229 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-13 14:54:11,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:54:11,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746959302] [2024-11-13 14:54:11,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746959302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:54:11,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:54:11,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:54:11,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549969385] [2024-11-13 14:54:11,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:54:11,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 14:54:11,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:54:11,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 14:54:11,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 14:54:11,268 INFO L87 Difference]: Start difference. First operand has 67 states, 48 states have (on average 1.4375) internal successors, (69), 49 states have internal predecessors, (69), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-13 14:54:11,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:54:11,305 INFO L93 Difference]: Finished difference Result 127 states and 212 transitions. [2024-11-13 14:54:11,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 14:54:11,308 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 111 [2024-11-13 14:54:11,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:54:11,316 INFO L225 Difference]: With dead ends: 127 [2024-11-13 14:54:11,316 INFO L226 Difference]: Without dead ends: 63 [2024-11-13 14:54:11,322 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 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 14:54:11,326 INFO L432 NwaCegarLoop]: 94 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, 94 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 14:54:11,330 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:54:11,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-13 14:54:11,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2024-11-13 14:54:11,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 45 states have (on average 1.3777777777777778) internal successors, (62), 45 states have internal predecessors, (62), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-13 14:54:11,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 94 transitions. [2024-11-13 14:54:11,381 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 94 transitions. Word has length 111 [2024-11-13 14:54:11,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:54:11,381 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 94 transitions. [2024-11-13 14:54:11,382 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, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-13 14:54:11,382 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 94 transitions. [2024-11-13 14:54:11,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-13 14:54:11,385 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:54:11,385 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:54:11,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 14:54:11,386 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:54:11,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:11,386 INFO L85 PathProgramCache]: Analyzing trace with hash 933564790, now seen corresponding path program 1 times [2024-11-13 14:54:11,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:54:11,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613707449] [2024-11-13 14:54:11,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:11,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:54:11,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:11,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:54:11,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:11,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:54:11,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:11,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-13 14:54:11,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:11,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-13 14:54:11,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:11,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-13 14:54:11,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:11,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:54:11,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:11,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-13 14:54:11,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:11,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-13 14:54:11,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:11,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-13 14:54:11,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:11,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-13 14:54:11,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:11,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 14:54:11,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:11,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:54:11,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:11,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-13 14:54:11,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:11,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-13 14:54:11,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:11,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-13 14:54:11,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:11,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-13 14:54:11,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:11,837 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-13 14:54:11,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:54:11,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613707449] [2024-11-13 14:54:11,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613707449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:54:11,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:54:11,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:54:11,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81051638] [2024-11-13 14:54:11,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:54:11,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:54:11,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:54:11,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:54:11,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:54:11,842 INFO L87 Difference]: Start difference. First operand 63 states and 94 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-13 14:54:11,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:54:11,933 INFO L93 Difference]: Finished difference Result 123 states and 185 transitions. [2024-11-13 14:54:11,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:54:11,936 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 111 [2024-11-13 14:54:11,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:54:11,938 INFO L225 Difference]: With dead ends: 123 [2024-11-13 14:54:11,938 INFO L226 Difference]: Without dead ends: 63 [2024-11-13 14:54:11,938 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:54:11,939 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 0 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:54:11,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 162 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:54:11,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-13 14:54:11,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2024-11-13 14:54:11,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 45 states have (on average 1.3555555555555556) internal successors, (61), 45 states have internal predecessors, (61), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-13 14:54:11,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 93 transitions. [2024-11-13 14:54:11,956 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 93 transitions. Word has length 111 [2024-11-13 14:54:11,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:54:11,961 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 93 transitions. [2024-11-13 14:54:11,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-13 14:54:11,962 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 93 transitions. [2024-11-13 14:54:11,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-13 14:54:11,963 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:54:11,963 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:54:11,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 14:54:11,964 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:54:11,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:11,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1996466283, now seen corresponding path program 1 times [2024-11-13 14:54:11,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:54:11,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930826765] [2024-11-13 14:54:11,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:11,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:54:12,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:12,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:54:12,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:12,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:54:12,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:12,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-13 14:54:12,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:12,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-13 14:54:12,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:12,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-13 14:54:12,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:12,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:54:12,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:12,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-13 14:54:12,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:12,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-13 14:54:12,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:12,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-13 14:54:12,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:12,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-13 14:54:12,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:12,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 14:54:12,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:12,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:54:12,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:12,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-13 14:54:12,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:12,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-13 14:54:12,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:12,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-13 14:54:12,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:12,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-13 14:54:12,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:12,951 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-13 14:54:12,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:54:12,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930826765] [2024-11-13 14:54:12,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930826765] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:54:12,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:54:12,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:54:12,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721085720] [2024-11-13 14:54:12,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:54:12,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:54:12,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:54:12,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:54:12,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:54:12,959 INFO L87 Difference]: Start difference. First operand 63 states and 93 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-13 14:54:13,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:54:13,311 INFO L93 Difference]: Finished difference Result 183 states and 266 transitions. [2024-11-13 14:54:13,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:54:13,311 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 112 [2024-11-13 14:54:13,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:54:13,314 INFO L225 Difference]: With dead ends: 183 [2024-11-13 14:54:13,314 INFO L226 Difference]: Without dead ends: 123 [2024-11-13 14:54:13,315 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:54:13,316 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 181 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:54:13,316 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 181 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 14:54:13,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-13 14:54:13,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 69. [2024-11-13 14:54:13,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 50 states have (on average 1.32) internal successors, (66), 50 states have internal predecessors, (66), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-13 14:54:13,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 98 transitions. [2024-11-13 14:54:13,338 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 98 transitions. Word has length 112 [2024-11-13 14:54:13,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:54:13,339 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 98 transitions. [2024-11-13 14:54:13,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-13 14:54:13,339 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 98 transitions. [2024-11-13 14:54:13,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-13 14:54:13,345 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:54:13,345 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:54:13,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 14:54:13,345 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:54:13,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:13,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1738300845, now seen corresponding path program 1 times [2024-11-13 14:54:13,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:54:13,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46800403] [2024-11-13 14:54:13,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:13,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:54:13,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:13,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:54:13,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:13,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:54:13,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:13,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-13 14:54:13,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:13,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-13 14:54:13,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:13,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-13 14:54:13,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:13,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:54:13,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:13,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-13 14:54:13,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:13,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-13 14:54:13,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:13,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-13 14:54:13,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:13,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-13 14:54:13,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:13,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 14:54:13,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:13,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:54:13,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:13,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-13 14:54:13,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:13,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-13 14:54:13,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:13,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-13 14:54:13,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:13,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-13 14:54:13,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:13,914 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 21 proven. 24 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-13 14:54:13,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:54:13,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46800403] [2024-11-13 14:54:13,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46800403] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:54:13,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [161648983] [2024-11-13 14:54:13,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:13,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:54:13,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:54:13,920 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:54:13,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 14:54:14,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:14,089 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 14:54:14,104 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:54:14,400 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 253 proven. 24 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2024-11-13 14:54:14,400 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:54:14,767 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 21 proven. 24 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-13 14:54:14,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [161648983] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:54:14,767 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:54:14,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2024-11-13 14:54:14,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133174984] [2024-11-13 14:54:14,768 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:54:14,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:54:14,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:54:14,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:54:14,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:54:14,770 INFO L87 Difference]: Start difference. First operand 69 states and 98 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-13 14:54:15,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:54:15,013 INFO L93 Difference]: Finished difference Result 141 states and 197 transitions. [2024-11-13 14:54:15,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 14:54:15,014 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 112 [2024-11-13 14:54:15,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:54:15,016 INFO L225 Difference]: With dead ends: 141 [2024-11-13 14:54:15,016 INFO L226 Difference]: Without dead ends: 75 [2024-11-13 14:54:15,017 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 252 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-11-13 14:54:15,018 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 92 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:54:15,019 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 172 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:54:15,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-13 14:54:15,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 71. [2024-11-13 14:54:15,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 51 states have (on average 1.2745098039215685) internal successors, (65), 51 states have internal predecessors, (65), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-13 14:54:15,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 97 transitions. [2024-11-13 14:54:15,035 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 97 transitions. Word has length 112 [2024-11-13 14:54:15,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:54:15,035 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 97 transitions. [2024-11-13 14:54:15,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-13 14:54:15,036 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 97 transitions. [2024-11-13 14:54:15,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-13 14:54:15,038 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:54:15,038 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:54:15,063 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 14:54:15,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-13 14:54:15,239 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:54:15,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:15,240 INFO L85 PathProgramCache]: Analyzing trace with hash 245836671, now seen corresponding path program 1 times [2024-11-13 14:54:15,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:54:15,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780342890] [2024-11-13 14:54:15,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:15,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:54:15,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:54:15,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [75364113] [2024-11-13 14:54:15,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:15,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:54:15,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:54:15,368 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:54:15,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 14:54:15,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:54:15,542 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:54:15,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:54:15,712 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:54:15,712 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 14:54:15,713 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 14:54:15,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-13 14:54:15,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:54:15,918 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-13 14:54:15,984 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 14:54:15,988 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 02:54:15 BoogieIcfgContainer [2024-11-13 14:54:15,988 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 14:54:15,988 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 14:54:15,988 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 14:54:15,989 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 14:54:15,989 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:54:10" (3/4) ... [2024-11-13 14:54:15,992 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 14:54:15,993 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 14:54:15,994 INFO L158 Benchmark]: Toolchain (without parser) took 6632.75ms. Allocated memory was 142.6MB in the beginning and 411.0MB in the end (delta: 268.4MB). Free memory was 118.8MB in the beginning and 194.3MB in the end (delta: -75.4MB). Peak memory consumption was 190.9MB. Max. memory is 16.1GB. [2024-11-13 14:54:15,994 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 142.6MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:54:15,995 INFO L158 Benchmark]: CACSL2BoogieTranslator took 436.74ms. Allocated memory is still 142.6MB. Free memory was 118.8MB in the beginning and 105.0MB in the end (delta: 13.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:54:15,995 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.83ms. Allocated memory is still 142.6MB. Free memory was 105.0MB in the beginning and 101.4MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:54:15,995 INFO L158 Benchmark]: Boogie Preprocessor took 88.44ms. Allocated memory is still 142.6MB. Free memory was 101.4MB in the beginning and 96.7MB in the end (delta: 4.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:54:15,996 INFO L158 Benchmark]: RCFGBuilder took 681.02ms. Allocated memory is still 142.6MB. Free memory was 96.7MB in the beginning and 74.0MB in the end (delta: 22.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 14:54:15,996 INFO L158 Benchmark]: TraceAbstraction took 5323.18ms. Allocated memory was 142.6MB in the beginning and 411.0MB in the end (delta: 268.4MB). Free memory was 73.5MB in the beginning and 194.3MB in the end (delta: -120.8MB). Peak memory consumption was 149.0MB. Max. memory is 16.1GB. [2024-11-13 14:54:15,996 INFO L158 Benchmark]: Witness Printer took 4.64ms. Allocated memory is still 411.0MB. Free memory was 194.3MB in the beginning and 194.3MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:54:15,999 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 142.6MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 436.74ms. Allocated memory is still 142.6MB. Free memory was 118.8MB in the beginning and 105.0MB in the end (delta: 13.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.83ms. Allocated memory is still 142.6MB. Free memory was 105.0MB in the beginning and 101.4MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 88.44ms. Allocated memory is still 142.6MB. Free memory was 101.4MB in the beginning and 96.7MB in the end (delta: 4.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 681.02ms. Allocated memory is still 142.6MB. Free memory was 96.7MB in the beginning and 74.0MB in the end (delta: 22.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 5323.18ms. Allocated memory was 142.6MB in the beginning and 411.0MB in the end (delta: 268.4MB). Free memory was 73.5MB in the beginning and 194.3MB in the end (delta: -120.8MB). Peak memory consumption was 149.0MB. Max. memory is 16.1GB. * Witness Printer took 4.64ms. Allocated memory is still 411.0MB. Free memory was 194.3MB in the beginning and 194.3MB in the end (delta: 27.0kB). 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 118, overapproximation of someBinaryDOUBLEComparisonOperation at line 118, overapproximation of someBinaryDOUBLEComparisonOperation at line 65, overapproximation of someBinaryDOUBLEComparisonOperation at line 110. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 1; [L23] unsigned char var_1_2 = 10; [L24] unsigned char var_1_3 = 25; [L25] unsigned char var_1_4 = 16; [L26] unsigned char var_1_5 = 0; [L27] unsigned char var_1_6 = 0; [L28] unsigned char var_1_7 = 1; [L29] unsigned char var_1_8 = 32; [L30] double var_1_9 = 4.6; [L31] double var_1_10 = 9.25; [L32] double var_1_11 = 1.25; [L33] unsigned char var_1_12 = 100; [L34] unsigned char var_1_13 = 64; [L35] unsigned char var_1_14 = 0; [L36] float var_1_15 = 7.5; [L37] signed long int var_1_16 = 0; VAL [isInitial=0, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_2=10, var_1_3=25, var_1_4=16, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L122] isInitial = 1 [L123] FCALL initially() [L124] COND TRUE 1 [L125] FCALL updateLastVariables() [L126] CALL updateVariables() [L90] var_1_2 = __VERIFIER_nondet_uchar() [L91] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_3=25, var_1_4=16, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_3=25, var_1_4=16, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L91] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_3=25, var_1_4=16, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L92] CALL assume_abort_if_not(var_1_2 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_3=25, var_1_4=16, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_3=25, var_1_4=16, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L92] RET assume_abort_if_not(var_1_2 <= 255) VAL [isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_3=25, var_1_4=16, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L93] var_1_3 = __VERIFIER_nondet_uchar() [L94] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_4=16, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_4=16, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L94] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_4=16, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L95] CALL assume_abort_if_not(var_1_3 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_4=16, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_4=16, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L95] RET assume_abort_if_not(var_1_3 <= 255) VAL [isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_4=16, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L96] var_1_4 = __VERIFIER_nondet_uchar() [L97] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L97] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L98] CALL assume_abort_if_not(var_1_4 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L98] RET assume_abort_if_not(var_1_4 <= 255) VAL [isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L99] var_1_5 = __VERIFIER_nondet_uchar() [L100] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L100] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L101] CALL assume_abort_if_not(var_1_5 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L101] RET assume_abort_if_not(var_1_5 <= 0) VAL [isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L102] var_1_7 = __VERIFIER_nondet_uchar() [L103] CALL assume_abort_if_not(var_1_7 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L103] RET assume_abort_if_not(var_1_7 >= 1) VAL [isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L104] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L104] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=32, var_1_9=23/5] [L105] var_1_8 = __VERIFIER_nondet_uchar() [L106] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_9=23/5] [L106] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_9=23/5] [L107] CALL assume_abort_if_not(var_1_8 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_9=23/5] [L107] RET assume_abort_if_not(var_1_8 <= 255) VAL [isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_9=23/5] [L108] CALL assume_abort_if_not(var_1_8 != 0) VAL [\old(cond)=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=1, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=1, var_1_9=23/5] [L108] RET assume_abort_if_not(var_1_8 != 0) VAL [isInitial=1, var_1_10=37/4, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=1, var_1_9=23/5] [L109] var_1_10 = __VERIFIER_nondet_double() [L110] CALL assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=1, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=1, var_1_9=23/5] [L110] RET assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=5/4, var_1_12=100, var_1_13=64, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=1, var_1_9=23/5] [L111] var_1_13 = __VERIFIER_nondet_uchar() [L112] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=5/4, var_1_12=100, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=1, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=5/4, var_1_12=100, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=1, var_1_9=23/5] [L112] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, var_1_11=5/4, var_1_12=100, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=1, var_1_9=23/5] [L113] CALL assume_abort_if_not(var_1_13 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_11=5/4, var_1_12=100, var_1_13=1, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=1, var_1_9=23/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_11=5/4, var_1_12=100, var_1_13=1, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=1, var_1_9=23/5] [L113] RET assume_abort_if_not(var_1_13 <= 254) VAL [isInitial=1, var_1_11=5/4, var_1_12=100, var_1_13=1, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=1, var_1_9=23/5] [L126] RET updateVariables() [L127] CALL step() [L41] unsigned char stepLocal_0 = var_1_2; VAL [isInitial=1, stepLocal_0=0, var_1_11=5/4, var_1_12=100, var_1_13=1, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_2=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=1, var_1_9=23/5] [L42] EXPR var_1_3 ^ var_1_4 VAL [isInitial=1, stepLocal_0=0, var_1_11=5/4, var_1_12=100, var_1_13=1, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_2=0, var_1_3=0, var_1_4=-255, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=1, var_1_9=23/5] [L42] COND TRUE stepLocal_0 <= (var_1_3 ^ var_1_4) [L43] var_1_1 = (! var_1_5) VAL [isInitial=1, var_1_11=5/4, var_1_12=100, var_1_13=1, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_2=0, var_1_3=0, var_1_4=-255, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=1, var_1_9=23/5] [L47] unsigned char stepLocal_2 = (var_1_5 && var_1_7) && var_1_1; [L48] signed long int stepLocal_1 = -256; VAL [isInitial=1, stepLocal_1=-256, stepLocal_2=0, var_1_11=5/4, var_1_12=100, var_1_13=1, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_2=0, var_1_3=0, var_1_4=-255, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=1, var_1_9=23/5] [L49] COND FALSE !(stepLocal_1 >= var_1_3) VAL [isInitial=1, stepLocal_2=0, var_1_11=5/4, var_1_12=100, var_1_13=1, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_2=0, var_1_3=0, var_1_4=-255, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=1, var_1_9=23/5] [L52] COND TRUE (var_1_2 < (var_1_4 / var_1_8)) || stepLocal_2 [L53] var_1_6 = var_1_7 VAL [isInitial=1, var_1_11=5/4, var_1_12=100, var_1_13=1, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_2=0, var_1_3=0, var_1_4=-255, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=1, var_1_9=23/5] [L56] COND TRUE ((((((((var_1_2) < (var_1_3)) ? (var_1_2) : (var_1_3)))) > (var_1_4)) ? (((((var_1_2) < (var_1_3)) ? (var_1_2) : (var_1_3)))) : (var_1_4))) <= (50 * var_1_8) [L57] var_1_9 = var_1_10 VAL [isInitial=1, var_1_10=2, var_1_11=5/4, var_1_12=100, var_1_13=1, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_2=0, var_1_3=0, var_1_4=-255, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=1, var_1_9=2] [L59] unsigned char stepLocal_3 = var_1_7 && var_1_1; VAL [isInitial=1, stepLocal_3=1, var_1_10=2, var_1_11=5/4, var_1_12=100, var_1_13=1, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_2=0, var_1_3=0, var_1_4=-255, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=1, var_1_9=2] [L60] COND TRUE stepLocal_3 || (! var_1_5) [L61] var_1_11 = var_1_10 VAL [isInitial=1, var_1_10=2, var_1_11=2, var_1_12=100, var_1_13=1, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_2=0, var_1_3=0, var_1_4=-255, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=1, var_1_9=2] [L63] unsigned char stepLocal_4 = var_1_3; VAL [isInitial=1, stepLocal_4=0, var_1_10=2, var_1_11=2, var_1_12=100, var_1_13=1, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_2=0, var_1_3=0, var_1_4=-255, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=1, var_1_9=2] [L64] COND TRUE \read(var_1_1) VAL [isInitial=1, stepLocal_4=0, var_1_10=2, var_1_11=2, var_1_12=100, var_1_13=1, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_2=0, var_1_3=0, var_1_4=-255, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=1, var_1_9=2] [L65] COND FALSE !(var_1_10 >= (- var_1_9)) [L72] var_1_12 = var_1_13 VAL [isInitial=1, stepLocal_4=0, var_1_10=2, var_1_11=2, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_2=0, var_1_3=0, var_1_4=-255, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=1, var_1_9=2] [L77] unsigned char stepLocal_6 = var_1_2; [L78] signed long int stepLocal_5 = var_1_13 + 16; VAL [isInitial=1, stepLocal_4=0, stepLocal_5=17, stepLocal_6=0, var_1_10=2, var_1_11=2, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_2=0, var_1_3=0, var_1_4=-255, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=1, var_1_9=2] [L79] COND FALSE !((var_1_13 % (5u + 256u)) <= stepLocal_6) VAL [isInitial=1, stepLocal_4=0, stepLocal_5=17, var_1_10=2, var_1_11=2, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=15/2, var_1_16=0, var_1_1=1, var_1_2=0, var_1_3=0, var_1_4=-255, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=1, var_1_9=2] [L86] var_1_15 = var_1_10 [L87] var_1_16 = var_1_3 VAL [isInitial=1, stepLocal_4=0, stepLocal_5=17, var_1_10=2, var_1_11=2, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=2, var_1_16=0, var_1_1=1, var_1_2=0, var_1_3=0, var_1_4=-255, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=1, var_1_9=2] [L127] RET step() [L128] CALL, EXPR property() [L118] EXPR var_1_3 ^ var_1_4 VAL [isInitial=1, var_1_10=2, var_1_11=2, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=2, var_1_16=0, var_1_1=1, var_1_2=0, var_1_3=0, var_1_4=-255, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=1, var_1_9=2] [L118-L119] return ((((((((var_1_2 <= (var_1_3 ^ var_1_4)) ? (var_1_1 == ((unsigned char) (! var_1_5))) : (var_1_1 == ((unsigned char) (! var_1_5)))) && ((-256 >= var_1_3) ? (var_1_6 == ((unsigned char) (var_1_1 || var_1_7))) : (((var_1_2 < (var_1_4 / var_1_8)) || ((var_1_5 && var_1_7) && var_1_1)) ? (var_1_6 == ((unsigned char) var_1_7)) : 1))) && ((((((((((var_1_2) < (var_1_3)) ? (var_1_2) : (var_1_3)))) > (var_1_4)) ? (((((var_1_2) < (var_1_3)) ? (var_1_2) : (var_1_3)))) : (var_1_4))) <= (50 * var_1_8)) ? (var_1_9 == ((double) var_1_10)) : 1)) && (((var_1_7 && var_1_1) || (! var_1_5)) ? (var_1_11 == ((double) var_1_10)) : 1)) && (var_1_1 ? ((var_1_10 >= (- var_1_9)) ? ((var_1_8 != var_1_3) ? (var_1_12 == ((unsigned char) var_1_13)) : (var_1_12 == ((unsigned char) 50))) : (var_1_12 == ((unsigned char) var_1_13))) : (var_1_12 == ((unsigned char) var_1_13)))) && (((var_1_13 % (5u + 256u)) <= var_1_2) ? (((var_1_13 + 16) >= var_1_2) ? (var_1_14 == ((unsigned char) var_1_7)) : (var_1_14 == ((unsigned char) var_1_7))) : 1)) && (var_1_15 == ((float) var_1_10))) && (var_1_16 == ((signed long int) var_1_3)) ; [L128] RET, EXPR property() [L128] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=2, var_1_11=2, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=2, var_1_16=0, var_1_1=1, var_1_2=0, var_1_3=0, var_1_4=-255, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=1, var_1_9=2] [L19] reach_error() VAL [isInitial=1, var_1_10=2, var_1_11=2, var_1_12=1, var_1_13=1, var_1_14=0, var_1_15=2, var_1_16=0, var_1_1=1, var_1_2=0, var_1_3=0, var_1_4=-255, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=1, var_1_9=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.2s, OverallIterations: 5, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 279 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 273 mSDsluCounter, 609 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 250 mSDsCounter, 82 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 172 IncrementalHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 82 mSolverCounterUnsat, 359 mSDtfsCounter, 172 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 390 GetRequests, 374 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred in iteration=4, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 58 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 784 NumberOfCodeBlocks, 784 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 664 ConstructedInterpolants, 0 QuantifiedInterpolants, 1220 SizeOfPredicates, 1 NumberOfNonLiveVariables, 269 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 2808/2880 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 14:54:16,032 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/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_51911ffa-71a0-4bf2-958d-df6eb4f51adb/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/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_51911ffa-71a0-4bf2-958d-df6eb4f51adb/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-68.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/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_51911ffa-71a0-4bf2-958d-df6eb4f51adb/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 d848ed00fc0d485481470376dd76caee8f421720e20ea964be77cc23ea1203a7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:54:19,040 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:54:19,150 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-13 14:54:19,177 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:54:19,178 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:54:19,226 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:54:19,231 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:54:19,231 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:54:19,231 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:54:19,231 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:54:19,232 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:54:19,232 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:54:19,232 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:54:19,232 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:54:19,233 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:54:19,233 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:54:19,233 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:54:19,233 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:54:19,233 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:54:19,235 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:54:19,236 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:54:19,236 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:54:19,236 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:54:19,236 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 14:54:19,236 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 14:54:19,236 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:54:19,236 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 14:54:19,236 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:54:19,236 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:54:19,236 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:54:19,237 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:54:19,237 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:54:19,237 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:54:19,237 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:54:19,237 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:54:19,237 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:54:19,237 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:54:19,237 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:54:19,237 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 14:54:19,238 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 14:54:19,238 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:54:19,238 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:54:19,238 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:54:19,238 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:54:19,238 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_51911ffa-71a0-4bf2-958d-df6eb4f51adb/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 -> d848ed00fc0d485481470376dd76caee8f421720e20ea964be77cc23ea1203a7 [2024-11-13 14:54:19,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:54:19,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:54:19,651 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:54:19,653 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:54:19,654 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:54:19,655 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-68.i Unable to find full path for "g++" [2024-11-13 14:54:21,792 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:54:22,203 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:54:22,205 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-68.i [2024-11-13 14:54:22,216 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/bin/uautomizer-verify-qhAvR1uOyd/data/d50e7ff74/05403d7dd02b41b2bb8257b80c1d6916/FLAGa61fa985e [2024-11-13 14:54:22,246 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/bin/uautomizer-verify-qhAvR1uOyd/data/d50e7ff74/05403d7dd02b41b2bb8257b80c1d6916 [2024-11-13 14:54:22,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:54:22,251 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:54:22,252 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:54:22,254 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:54:22,259 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:54:22,261 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:54:22" (1/1) ... [2024-11-13 14:54:22,262 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c139b40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:54:22, skipping insertion in model container [2024-11-13 14:54:22,264 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:54:22" (1/1) ... [2024-11-13 14:54:22,292 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:54:22,497 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_51911ffa-71a0-4bf2-958d-df6eb4f51adb/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-68.i[917,930] [2024-11-13 14:54:22,591 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:54:22,615 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:54:22,628 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_51911ffa-71a0-4bf2-958d-df6eb4f51adb/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-68.i[917,930] [2024-11-13 14:54:22,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:54:22,718 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:54:22,718 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:54:22 WrapperNode [2024-11-13 14:54:22,720 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:54:22,722 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:54:22,722 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:54:22,723 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:54:22,732 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:54:22" (1/1) ... [2024-11-13 14:54:22,751 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:54:22" (1/1) ... [2024-11-13 14:54:22,797 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 120 [2024-11-13 14:54:22,797 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:54:22,798 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:54:22,798 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:54:22,798 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:54:22,814 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:54:22" (1/1) ... [2024-11-13 14:54:22,815 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:54:22" (1/1) ... [2024-11-13 14:54:22,818 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:54:22" (1/1) ... [2024-11-13 14:54:22,839 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 14:54:22,844 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:54:22" (1/1) ... [2024-11-13 14:54:22,848 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:54:22" (1/1) ... [2024-11-13 14:54:22,866 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:54:22" (1/1) ... [2024-11-13 14:54:22,870 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:54:22" (1/1) ... [2024-11-13 14:54:22,877 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:54:22" (1/1) ... [2024-11-13 14:54:22,878 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:54:22" (1/1) ... [2024-11-13 14:54:22,884 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:54:22,889 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:54:22,889 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:54:22,889 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:54:22,891 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:54:22" (1/1) ... [2024-11-13 14:54:22,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:54:22,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:54:22,937 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:54:22,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:54:22,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:54:22,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 14:54:22,978 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 14:54:22,978 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 14:54:22,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:54:22,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:54:23,087 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:54:23,089 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:54:23,808 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-13 14:54:23,808 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:54:23,826 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:54:23,826 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 14:54:23,827 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:54:23 BoogieIcfgContainer [2024-11-13 14:54:23,827 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:54:23,830 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:54:23,831 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:54:23,839 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:54:23,840 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:54:22" (1/3) ... [2024-11-13 14:54:23,841 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c14ceb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:54:23, skipping insertion in model container [2024-11-13 14:54:23,841 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:54:22" (2/3) ... [2024-11-13 14:54:23,841 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c14ceb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:54:23, skipping insertion in model container [2024-11-13 14:54:23,842 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:54:23" (3/3) ... [2024-11-13 14:54:23,843 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-68.i [2024-11-13 14:54:23,861 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:54:23,863 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_codestructure_steplocals_file-68.i that has 2 procedures, 58 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 14:54:23,932 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:54:23,947 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;@764d8d0e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:54:23,947 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 14:54:23,954 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 40 states have internal predecessors, (54), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-13 14:54:23,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-13 14:54:23,964 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:54:23,965 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:54:23,965 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:54:23,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:23,970 INFO L85 PathProgramCache]: Analyzing trace with hash 388791512, now seen corresponding path program 1 times [2024-11-13 14:54:23,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:54:23,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1221572497] [2024-11-13 14:54:23,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:23,982 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 14:54:23,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:54:23,985 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/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 14:54:23,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/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 14:54:24,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:24,279 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 14:54:24,290 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:54:24,379 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2024-11-13 14:54:24,379 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:54:24,380 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:54:24,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1221572497] [2024-11-13 14:54:24,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1221572497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:54:24,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:54:24,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:54:24,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130090234] [2024-11-13 14:54:24,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:54:24,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 14:54:24,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:54:24,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 14:54:24,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 14:54:24,424 INFO L87 Difference]: Start difference. First operand has 58 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 40 states have internal predecessors, (54), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-13 14:54:24,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:54:24,468 INFO L93 Difference]: Finished difference Result 109 states and 182 transitions. [2024-11-13 14:54:24,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 14:54:24,470 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 108 [2024-11-13 14:54:24,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:54:24,479 INFO L225 Difference]: With dead ends: 109 [2024-11-13 14:54:24,479 INFO L226 Difference]: Without dead ends: 54 [2024-11-13 14:54:24,483 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 14:54:24,489 INFO L432 NwaCegarLoop]: 79 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, 79 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 14:54:24,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:54:24,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-13 14:54:24,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-11-13 14:54:24,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 36 states have internal predecessors, (47), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-13 14:54:24,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 79 transitions. [2024-11-13 14:54:24,552 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 79 transitions. Word has length 108 [2024-11-13 14:54:24,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:54:24,552 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 79 transitions. [2024-11-13 14:54:24,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-13 14:54:24,554 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 79 transitions. [2024-11-13 14:54:24,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-13 14:54:24,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:54:24,560 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:54:24,568 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/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 14:54:24,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/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 14:54:24,761 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:54:24,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:24,762 INFO L85 PathProgramCache]: Analyzing trace with hash 2103987732, now seen corresponding path program 1 times [2024-11-13 14:54:24,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:54:24,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1713513134] [2024-11-13 14:54:24,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:24,763 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 14:54:24,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:54:24,766 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/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 14:54:24,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/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 14:54:24,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:24,985 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 14:54:24,994 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:54:25,096 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-13 14:54:25,097 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:54:25,098 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:54:25,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1713513134] [2024-11-13 14:54:25,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1713513134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:54:25,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:54:25,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:54:25,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600806478] [2024-11-13 14:54:25,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:54:25,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:54:25,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:54:25,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:54:25,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:54:25,105 INFO L87 Difference]: Start difference. First operand 54 states and 79 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-13 14:54:25,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:54:25,339 INFO L93 Difference]: Finished difference Result 105 states and 155 transitions. [2024-11-13 14:54:25,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:54:25,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 108 [2024-11-13 14:54:25,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:54:25,349 INFO L225 Difference]: With dead ends: 105 [2024-11-13 14:54:25,350 INFO L226 Difference]: Without dead ends: 54 [2024-11-13 14:54:25,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:54:25,351 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 0 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:54:25,352 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 151 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:54:25,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-13 14:54:25,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-11-13 14:54:25,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 36 states have internal predecessors, (46), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-13 14:54:25,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 78 transitions. [2024-11-13 14:54:25,363 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 78 transitions. Word has length 108 [2024-11-13 14:54:25,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:54:25,366 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 78 transitions. [2024-11-13 14:54:25,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-13 14:54:25,368 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 78 transitions. [2024-11-13 14:54:25,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-13 14:54:25,372 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:54:25,372 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:54:25,379 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/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)] Ended with exit code 0 [2024-11-13 14:54:25,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/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 14:54:25,574 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:54:25,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:25,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1141418560, now seen corresponding path program 1 times [2024-11-13 14:54:25,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:54:25,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [744930061] [2024-11-13 14:54:25,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:25,577 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 14:54:25,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:54:25,580 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/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 14:54:25,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/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 (4)] Waiting until timeout for monitored process [2024-11-13 14:54:25,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:25,876 INFO L255 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 14:54:25,881 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:54:26,279 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 253 proven. 24 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2024-11-13 14:54:26,279 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:54:26,705 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 21 proven. 24 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-13 14:54:26,705 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:54:26,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [744930061] [2024-11-13 14:54:26,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [744930061] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:54:26,706 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:54:26,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2024-11-13 14:54:26,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870732605] [2024-11-13 14:54:26,706 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:54:26,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 14:54:26,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:54:26,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 14:54:26,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:54:26,709 INFO L87 Difference]: Start difference. First operand 54 states and 78 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-13 14:54:27,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:54:27,767 INFO L93 Difference]: Finished difference Result 113 states and 160 transitions. [2024-11-13 14:54:27,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 14:54:27,777 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 109 [2024-11-13 14:54:27,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:54:27,779 INFO L225 Difference]: With dead ends: 113 [2024-11-13 14:54:27,779 INFO L226 Difference]: Without dead ends: 62 [2024-11-13 14:54:27,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 209 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2024-11-13 14:54:27,781 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 77 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 14:54:27,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 120 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 14:54:27,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-11-13 14:54:27,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 58. [2024-11-13 14:54:27,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 39 states have (on average 1.205128205128205) internal successors, (47), 39 states have internal predecessors, (47), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-13 14:54:27,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 79 transitions. [2024-11-13 14:54:27,799 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 79 transitions. Word has length 109 [2024-11-13 14:54:27,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:54:27,800 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 79 transitions. [2024-11-13 14:54:27,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-13 14:54:27,800 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 79 transitions. [2024-11-13 14:54:27,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-13 14:54:27,802 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:54:27,802 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:54:27,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/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 (4)] Forceful destruction successful, exit code 0 [2024-11-13 14:54:28,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/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 14:54:28,003 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:54:28,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:54:28,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1449398269, now seen corresponding path program 1 times [2024-11-13 14:54:28,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:54:28,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [328073343] [2024-11-13 14:54:28,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:54:28,005 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 14:54:28,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:54:28,008 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/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 14:54:28,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51911ffa-71a0-4bf2-958d-df6eb4f51adb/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 (5)] Waiting until timeout for monitored process [2024-11-13 14:54:28,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:54:28,232 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-13 14:54:28,239 INFO L278 TraceCheckSpWp]: Computing forward predicates...