./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-54.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_7ebea105-7658-4d3a-842b-68354374b571/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ebea105-7658-4d3a-842b-68354374b571/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_7ebea105-7658-4d3a-842b-68354374b571/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ebea105-7658-4d3a-842b-68354374b571/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-54.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ebea105-7658-4d3a-842b-68354374b571/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_7ebea105-7658-4d3a-842b-68354374b571/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 8cfcfd272855d27ce62fb23250668d204eb8b7cef032f32eb6bf38a181db8911 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:33:02,978 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:33:03,060 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ebea105-7658-4d3a-842b-68354374b571/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 16:33:03,067 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:33:03,068 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:33:03,106 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:33:03,107 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:33:03,108 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:33:03,109 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 16:33:03,109 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 16:33:03,110 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:33:03,110 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 16:33:03,111 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:33:03,111 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:33:03,111 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:33:03,111 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:33:03,111 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:33:03,111 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:33:03,111 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:33:03,112 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:33:03,112 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:33:03,112 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:33:03,112 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:33:03,112 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:33:03,112 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:33:03,112 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:33:03,112 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:33:03,112 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:33:03,112 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:33:03,112 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:33:03,113 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 16:33:03,113 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 16:33:03,113 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:33:03,113 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:33:03,113 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:33:03,113 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:33:03,113 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 16:33:03,113 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:33:03,113 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 16:33:03,114 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 16:33:03,114 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 16:33:03,114 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 16:33:03,114 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_7ebea105-7658-4d3a-842b-68354374b571/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 -> 8cfcfd272855d27ce62fb23250668d204eb8b7cef032f32eb6bf38a181db8911 [2024-11-13 16:33:03,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:33:03,394 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:33:03,396 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:33:03,397 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:33:03,398 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:33:03,399 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ebea105-7658-4d3a-842b-68354374b571/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-54.i Unable to find full path for "g++" [2024-11-13 16:33:05,256 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:33:05,506 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:33:05,507 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ebea105-7658-4d3a-842b-68354374b571/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-54.i [2024-11-13 16:33:05,515 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ebea105-7658-4d3a-842b-68354374b571/bin/uautomizer-verify-qhAvR1uOyd/data/6886ded83/90f47fe1966d45329cd91fb03cb186f3/FLAGb037bcd61 [2024-11-13 16:33:05,530 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ebea105-7658-4d3a-842b-68354374b571/bin/uautomizer-verify-qhAvR1uOyd/data/6886ded83/90f47fe1966d45329cd91fb03cb186f3 [2024-11-13 16:33:05,532 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:33:05,533 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:33:05,534 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:33:05,534 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:33:05,538 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:33:05,538 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:33:05" (1/1) ... [2024-11-13 16:33:05,539 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@549ef215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:05, skipping insertion in model container [2024-11-13 16:33:05,539 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:33:05" (1/1) ... [2024-11-13 16:33:05,561 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:33:05,743 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_7ebea105-7658-4d3a-842b-68354374b571/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-54.i[915,928] [2024-11-13 16:33:05,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:33:05,848 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:33:05,863 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_7ebea105-7658-4d3a-842b-68354374b571/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-54.i[915,928] [2024-11-13 16:33:05,908 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:33:05,940 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:33:05,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:05 WrapperNode [2024-11-13 16:33:05,945 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:33:05,946 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:33:05,946 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:33:05,946 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:33:05,953 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:05" (1/1) ... [2024-11-13 16:33:05,967 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:05" (1/1) ... [2024-11-13 16:33:06,015 INFO L138 Inliner]: procedures = 26, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 94 [2024-11-13 16:33:06,015 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:33:06,016 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:33:06,016 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:33:06,016 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:33:06,029 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:05" (1/1) ... [2024-11-13 16:33:06,029 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:05" (1/1) ... [2024-11-13 16:33:06,031 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:05" (1/1) ... [2024-11-13 16:33:06,054 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 16:33:06,055 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:05" (1/1) ... [2024-11-13 16:33:06,055 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:05" (1/1) ... [2024-11-13 16:33:06,062 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:05" (1/1) ... [2024-11-13 16:33:06,069 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:05" (1/1) ... [2024-11-13 16:33:06,078 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:05" (1/1) ... [2024-11-13 16:33:06,080 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:05" (1/1) ... [2024-11-13 16:33:06,082 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:33:06,083 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:33:06,083 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:33:06,083 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:33:06,084 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:05" (1/1) ... [2024-11-13 16:33:06,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:33:06,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ebea105-7658-4d3a-842b-68354374b571/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:33:06,126 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ebea105-7658-4d3a-842b-68354374b571/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 16:33:06,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ebea105-7658-4d3a-842b-68354374b571/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 16:33:06,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:33:06,161 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 16:33:06,161 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 16:33:06,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 16:33:06,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:33:06,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:33:06,253 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:33:06,255 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:33:06,515 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-13 16:33:06,515 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:33:06,530 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:33:06,530 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 16:33:06,530 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:33:06 BoogieIcfgContainer [2024-11-13 16:33:06,530 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:33:06,535 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 16:33:06,535 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 16:33:06,539 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 16:33:06,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:33:05" (1/3) ... [2024-11-13 16:33:06,540 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f5077ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:33:06, skipping insertion in model container [2024-11-13 16:33:06,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:05" (2/3) ... [2024-11-13 16:33:06,542 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f5077ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:33:06, skipping insertion in model container [2024-11-13 16:33:06,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:33:06" (3/3) ... [2024-11-13 16:33:06,543 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-54.i [2024-11-13 16:33:06,559 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 16:33:06,561 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-54.i that has 2 procedures, 42 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 16:33:06,624 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:33:06,636 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;@6bfd71a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:33:06,636 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 16:33:06,642 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 29 states have internal predecessors, (37), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 16:33:06,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-13 16:33:06,654 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:33:06,655 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:33:06,656 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:33:06,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:33:06,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1093202058, now seen corresponding path program 1 times [2024-11-13 16:33:06,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:33:06,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963116049] [2024-11-13 16:33:06,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:33:06,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:33:06,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:06,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 16:33:06,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:06,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 16:33:06,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:06,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-13 16:33:06,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:06,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-13 16:33:06,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:06,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-13 16:33:06,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:06,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 16:33:06,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:06,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-13 16:33:06,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:06,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-13 16:33:07,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:07,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-13 16:33:07,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:07,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-13 16:33:07,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:07,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 16:33:07,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:07,044 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-13 16:33:07,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:33:07,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963116049] [2024-11-13 16:33:07,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963116049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:33:07,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:33:07,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:33:07,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835018191] [2024-11-13 16:33:07,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:33:07,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 16:33:07,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:33:07,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 16:33:07,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 16:33:07,083 INFO L87 Difference]: Start difference. First operand has 42 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 29 states have internal predecessors, (37), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 16:33:07,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:33:07,112 INFO L93 Difference]: Finished difference Result 81 states and 126 transitions. [2024-11-13 16:33:07,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 16:33:07,114 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 75 [2024-11-13 16:33:07,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:33:07,121 INFO L225 Difference]: With dead ends: 81 [2024-11-13 16:33:07,121 INFO L226 Difference]: Without dead ends: 38 [2024-11-13 16:33:07,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 35 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 16:33:07,127 INFO L432 NwaCegarLoop]: 55 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, 55 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 16:33:07,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 16:33:07,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-13 16:33:07,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-13 16:33:07,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 16:33:07,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 51 transitions. [2024-11-13 16:33:07,160 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 51 transitions. Word has length 75 [2024-11-13 16:33:07,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:33:07,161 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 51 transitions. [2024-11-13 16:33:07,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 16:33:07,161 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 51 transitions. [2024-11-13 16:33:07,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-13 16:33:07,166 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:33:07,167 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:33:07,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 16:33:07,167 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:33:07,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:33:07,168 INFO L85 PathProgramCache]: Analyzing trace with hash -65123122, now seen corresponding path program 1 times [2024-11-13 16:33:07,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:33:07,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345854076] [2024-11-13 16:33:07,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:33:07,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:33:07,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:07,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 16:33:07,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:07,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 16:33:07,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:07,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-13 16:33:07,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:07,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-13 16:33:07,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:07,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-13 16:33:07,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:07,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 16:33:07,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:07,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-13 16:33:07,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:07,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-13 16:33:07,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:07,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-13 16:33:07,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:07,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-13 16:33:07,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:07,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 16:33:07,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:07,538 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-13 16:33:07,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:33:07,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345854076] [2024-11-13 16:33:07,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345854076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:33:07,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:33:07,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 16:33:07,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127209187] [2024-11-13 16:33:07,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:33:07,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:33:07,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:33:07,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:33:07,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:33:07,542 INFO L87 Difference]: Start difference. First operand 38 states and 51 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-13 16:33:07,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:33:07,611 INFO L93 Difference]: Finished difference Result 75 states and 101 transitions. [2024-11-13 16:33:07,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:33:07,612 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 75 [2024-11-13 16:33:07,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:33:07,613 INFO L225 Difference]: With dead ends: 75 [2024-11-13 16:33:07,613 INFO L226 Difference]: Without dead ends: 40 [2024-11-13 16:33:07,613 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 16:33:07,614 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 14 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:33:07,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 125 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 16:33:07,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-13 16:33:07,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2024-11-13 16:33:07,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.12) internal successors, (28), 25 states have internal predecessors, (28), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 16:33:07,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 50 transitions. [2024-11-13 16:33:07,623 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 50 transitions. Word has length 75 [2024-11-13 16:33:07,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:33:07,625 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 50 transitions. [2024-11-13 16:33:07,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-13 16:33:07,625 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 50 transitions. [2024-11-13 16:33:07,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-13 16:33:07,627 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:33:07,627 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:33:07,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 16:33:07,628 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:33:07,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:33:07,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1709884240, now seen corresponding path program 1 times [2024-11-13 16:33:07,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:33:07,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868628803] [2024-11-13 16:33:07,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:33:07,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:33:07,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:33:07,835 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:33:07,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:33:07,974 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:33:07,975 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 16:33:07,976 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 16:33:07,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 16:33:07,983 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-13 16:33:08,068 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 16:33:08,074 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 04:33:08 BoogieIcfgContainer [2024-11-13 16:33:08,075 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 16:33:08,075 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 16:33:08,075 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 16:33:08,076 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 16:33:08,076 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:33:06" (3/4) ... [2024-11-13 16:33:08,079 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 16:33:08,080 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 16:33:08,081 INFO L158 Benchmark]: Toolchain (without parser) took 2547.40ms. Allocated memory is still 142.6MB. Free memory was 116.9MB in the beginning and 71.7MB in the end (delta: 45.2MB). Peak memory consumption was 47.3MB. Max. memory is 16.1GB. [2024-11-13 16:33:08,082 INFO L158 Benchmark]: CDTParser took 0.92ms. Allocated memory is still 117.4MB. Free memory was 75.2MB in the beginning and 74.9MB in the end (delta: 381.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:33:08,084 INFO L158 Benchmark]: CACSL2BoogieTranslator took 411.08ms. Allocated memory is still 142.6MB. Free memory was 116.8MB in the beginning and 103.9MB in the end (delta: 12.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 16:33:08,084 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.18ms. Allocated memory is still 142.6MB. Free memory was 103.9MB in the beginning and 101.5MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:33:08,085 INFO L158 Benchmark]: Boogie Preprocessor took 66.57ms. Allocated memory is still 142.6MB. Free memory was 101.5MB in the beginning and 98.1MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:33:08,085 INFO L158 Benchmark]: RCFGBuilder took 447.61ms. Allocated memory is still 142.6MB. Free memory was 97.9MB in the beginning and 82.7MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 16:33:08,085 INFO L158 Benchmark]: TraceAbstraction took 1539.99ms. Allocated memory is still 142.6MB. Free memory was 82.0MB in the beginning and 72.5MB in the end (delta: 9.6MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2024-11-13 16:33:08,086 INFO L158 Benchmark]: Witness Printer took 4.67ms. Allocated memory is still 142.6MB. Free memory was 72.5MB in the beginning and 71.7MB in the end (delta: 707.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:33:08,090 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.92ms. Allocated memory is still 117.4MB. Free memory was 75.2MB in the beginning and 74.9MB in the end (delta: 381.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 411.08ms. Allocated memory is still 142.6MB. Free memory was 116.8MB in the beginning and 103.9MB in the end (delta: 12.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.18ms. Allocated memory is still 142.6MB. Free memory was 103.9MB in the beginning and 101.5MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 66.57ms. Allocated memory is still 142.6MB. Free memory was 101.5MB in the beginning and 98.1MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 447.61ms. Allocated memory is still 142.6MB. Free memory was 97.9MB in the beginning and 82.7MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1539.99ms. Allocated memory is still 142.6MB. Free memory was 82.0MB in the beginning and 72.5MB in the end (delta: 9.6MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * Witness Printer took 4.67ms. Allocated memory is still 142.6MB. Free memory was 72.5MB in the beginning and 71.7MB in the end (delta: 707.6kB). 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 81, overapproximation of someBinaryFLOATComparisonOperation at line 76. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 16; [L23] unsigned char var_1_3 = 10; [L24] unsigned char var_1_4 = 0; [L25] unsigned char var_1_6 = 1; [L26] unsigned char var_1_7 = 0; [L27] unsigned char var_1_8 = 0; [L28] unsigned long int var_1_9 = 5; [L29] unsigned long int var_1_10 = 3126062476; [L30] unsigned short int var_1_13 = 10; [L31] signed long int var_1_14 = 128; [L32] float var_1_15 = 4.2; [L33] float var_1_16 = 5.1; VAL [isInitial=0, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=10, var_1_4=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=5] [L85] isInitial = 1 [L86] FCALL initially() [L87] int k_loop; [L88] k_loop = 0 VAL [isInitial=1, k_loop=0, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=10, var_1_4=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=5] [L88] COND TRUE k_loop < 1 [L89] FCALL updateLastVariables() [L90] CALL updateVariables() [L60] var_1_3 = __VERIFIER_nondet_uchar() [L61] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_4=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_4=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=5] [L61] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_4=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=5] [L62] CALL assume_abort_if_not(var_1_3 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=5] [L62] RET assume_abort_if_not(var_1_3 <= 254) VAL [isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=5] [L63] var_1_6 = __VERIFIER_nondet_uchar() [L64] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_7=0, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_7=0, var_1_8=0, var_1_9=5] [L64] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_7=0, var_1_8=0, var_1_9=5] [L65] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=5] [L65] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=5] [L66] var_1_7 = __VERIFIER_nondet_uchar() [L67] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_8=0, var_1_9=5] [L67] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_8=0, var_1_9=5] [L68] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L68] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L69] var_1_8 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_9=5] [L70] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_9=5] [L71] CALL assume_abort_if_not(var_1_8 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L71] RET assume_abort_if_not(var_1_8 <= 0) VAL [isInitial=1, var_1_10=3126062476, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L72] var_1_10 = __VERIFIER_nondet_ulong() [L73] CALL assume_abort_if_not(var_1_10 >= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=2147483647, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=2147483647, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L73] RET assume_abort_if_not(var_1_10 >= 2147483647) VAL [isInitial=1, var_1_10=2147483647, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L74] CALL assume_abort_if_not(var_1_10 <= 4294967294) VAL [\old(cond)=1, isInitial=1, var_1_10=2147483647, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=2147483647, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L74] RET assume_abort_if_not(var_1_10 <= 4294967294) VAL [isInitial=1, var_1_10=2147483647, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_16=51/10, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L75] var_1_16 = __VERIFIER_nondet_float() [L76] CALL assume_abort_if_not((var_1_16 >= -922337.2036854765600e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=2147483647, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=2147483647, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L76] RET assume_abort_if_not((var_1_16 >= -922337.2036854765600e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=2147483647, var_1_13=10, var_1_14=128, var_1_15=21/5, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L90] RET updateVariables() [L91] CALL step() [L37] var_1_13 = var_1_3 [L38] var_1_14 = var_1_3 [L39] var_1_15 = var_1_16 [L40] unsigned short int stepLocal_0 = var_1_13; VAL [isInitial=1, var_1_10=2147483647, var_1_13=254, var_1_14=254, var_1_15=3126062481, var_1_16=3126062481, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L41] COND FALSE !(-4 >= stepLocal_0) VAL [isInitial=1, var_1_10=2147483647, var_1_13=254, var_1_14=254, var_1_15=3126062481, var_1_16=3126062481, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L44] signed long int stepLocal_2 = var_1_14; VAL [isInitial=1, stepLocal_2=254, var_1_10=2147483647, var_1_13=254, var_1_14=254, var_1_15=3126062481, var_1_16=3126062481, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L45] COND FALSE !(var_1_3 < stepLocal_2) VAL [isInitial=1, var_1_10=2147483647, var_1_13=254, var_1_14=254, var_1_15=3126062481, var_1_16=3126062481, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L48] unsigned long int stepLocal_1 = 8 * var_1_9; VAL [isInitial=1, stepLocal_1=40, var_1_10=2147483647, var_1_13=254, var_1_14=254, var_1_15=3126062481, var_1_16=3126062481, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L49] COND FALSE !(stepLocal_1 == ((((10) > (var_1_9)) ? (10) : (var_1_9)))) [L56] var_1_4 = var_1_8 VAL [isInitial=1, var_1_10=2147483647, var_1_13=254, var_1_14=254, var_1_15=3126062481, var_1_16=3126062481, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L91] RET step() [L92] CALL, EXPR property() [L81-L82] return ((((((-4 >= var_1_13) ? (var_1_1 == ((unsigned char) ((((var_1_3) < (((((1) < 0 ) ? -(1) : (1))))) ? (var_1_3) : (((((1) < 0 ) ? -(1) : (1)))))))) : 1) && (((8 * var_1_9) == ((((10) > (var_1_9)) ? (10) : (var_1_9)))) ? (var_1_6 ? (var_1_4 == ((unsigned char) (var_1_7 && var_1_8))) : (var_1_4 == ((unsigned char) var_1_8))) : (var_1_4 == ((unsigned char) var_1_8)))) && ((var_1_3 < var_1_14) ? (var_1_9 == ((unsigned long int) (((((3851651024u - var_1_3)) < ((((((var_1_10 - var_1_13)) > ((var_1_1 + var_1_1))) ? ((var_1_10 - var_1_13)) : ((var_1_1 + var_1_1)))))) ? ((3851651024u - var_1_3)) : ((((((var_1_10 - var_1_13)) > ((var_1_1 + var_1_1))) ? ((var_1_10 - var_1_13)) : ((var_1_1 + var_1_1))))))))) : 1)) && (var_1_13 == ((unsigned short int) var_1_3))) && (var_1_14 == ((signed long int) var_1_3))) && (var_1_15 == ((float) var_1_16)) ; VAL [\result=0, isInitial=1, var_1_10=2147483647, var_1_13=254, var_1_14=254, var_1_15=3126062481, var_1_16=3126062481, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L92] RET, EXPR property() [L92] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=2147483647, var_1_13=254, var_1_14=254, var_1_15=3126062481, var_1_16=3126062481, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] [L19] reach_error() VAL [isInitial=1, var_1_10=2147483647, var_1_13=254, var_1_14=254, var_1_15=3126062481, var_1_16=3126062481, var_1_1=16, var_1_3=254, var_1_4=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=5] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 3, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 180 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 76 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 104 mSDtfsCounter, 14 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 225 NumberOfCodeBlocks, 225 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 160 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 440/440 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 16:33:08,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ebea105-7658-4d3a-842b-68354374b571/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ebea105-7658-4d3a-842b-68354374b571/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ebea105-7658-4d3a-842b-68354374b571/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_7ebea105-7658-4d3a-842b-68354374b571/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ebea105-7658-4d3a-842b-68354374b571/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-54.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ebea105-7658-4d3a-842b-68354374b571/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_7ebea105-7658-4d3a-842b-68354374b571/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 8cfcfd272855d27ce62fb23250668d204eb8b7cef032f32eb6bf38a181db8911 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:33:10,990 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:33:11,116 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ebea105-7658-4d3a-842b-68354374b571/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-13 16:33:11,123 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:33:11,123 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:33:11,165 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:33:11,167 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:33:11,167 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:33:11,168 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 16:33:11,168 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 16:33:11,170 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:33:11,170 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 16:33:11,170 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:33:11,170 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:33:11,171 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:33:11,171 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:33:11,171 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:33:11,171 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:33:11,171 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:33:11,171 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:33:11,172 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:33:11,172 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:33:11,172 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:33:11,172 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 16:33:11,173 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 16:33:11,173 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:33:11,173 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 16:33:11,173 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:33:11,173 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:33:11,173 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:33:11,174 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:33:11,174 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:33:11,174 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 16:33:11,174 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 16:33:11,174 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:33:11,175 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:33:11,176 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:33:11,176 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:33:11,176 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 16:33:11,176 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 16:33:11,176 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 16:33:11,176 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 16:33:11,176 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 16:33:11,177 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 16:33:11,177 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_7ebea105-7658-4d3a-842b-68354374b571/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 -> 8cfcfd272855d27ce62fb23250668d204eb8b7cef032f32eb6bf38a181db8911 [2024-11-13 16:33:11,510 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:33:11,523 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:33:11,528 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:33:11,529 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:33:11,530 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:33:11,531 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ebea105-7658-4d3a-842b-68354374b571/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-54.i Unable to find full path for "g++" [2024-11-13 16:33:13,696 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:33:14,038 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:33:14,042 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ebea105-7658-4d3a-842b-68354374b571/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-54.i [2024-11-13 16:33:14,057 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ebea105-7658-4d3a-842b-68354374b571/bin/uautomizer-verify-qhAvR1uOyd/data/e01039c68/30e648aea9ea4585be847c0205cdaa00/FLAGdf5b51c30 [2024-11-13 16:33:14,084 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ebea105-7658-4d3a-842b-68354374b571/bin/uautomizer-verify-qhAvR1uOyd/data/e01039c68/30e648aea9ea4585be847c0205cdaa00 [2024-11-13 16:33:14,087 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:33:14,090 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:33:14,093 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:33:14,093 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:33:14,100 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:33:14,101 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:33:14" (1/1) ... [2024-11-13 16:33:14,102 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f50ca01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:14, skipping insertion in model container [2024-11-13 16:33:14,103 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:33:14" (1/1) ... [2024-11-13 16:33:14,132 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:33:14,347 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_7ebea105-7658-4d3a-842b-68354374b571/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-54.i[915,928] [2024-11-13 16:33:14,445 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:33:14,473 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:33:14,494 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_7ebea105-7658-4d3a-842b-68354374b571/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-54.i[915,928] [2024-11-13 16:33:14,543 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:33:14,578 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:33:14,578 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:14 WrapperNode [2024-11-13 16:33:14,580 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:33:14,581 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:33:14,582 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:33:14,582 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:33:14,592 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:14" (1/1) ... [2024-11-13 16:33:14,613 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:14" (1/1) ... [2024-11-13 16:33:14,662 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 94 [2024-11-13 16:33:14,662 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:33:14,663 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:33:14,663 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:33:14,663 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:33:14,681 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:14" (1/1) ... [2024-11-13 16:33:14,681 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:14" (1/1) ... [2024-11-13 16:33:14,690 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:14" (1/1) ... [2024-11-13 16:33:14,715 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 16:33:14,719 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:14" (1/1) ... [2024-11-13 16:33:14,719 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:14" (1/1) ... [2024-11-13 16:33:14,737 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:14" (1/1) ... [2024-11-13 16:33:14,745 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:14" (1/1) ... [2024-11-13 16:33:14,750 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:14" (1/1) ... [2024-11-13 16:33:14,755 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:14" (1/1) ... [2024-11-13 16:33:14,762 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:33:14,763 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:33:14,763 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:33:14,763 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:33:14,765 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:14" (1/1) ... [2024-11-13 16:33:14,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:33:14,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ebea105-7658-4d3a-842b-68354374b571/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:33:14,818 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ebea105-7658-4d3a-842b-68354374b571/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 16:33:14,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ebea105-7658-4d3a-842b-68354374b571/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 16:33:14,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:33:14,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 16:33:14,854 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 16:33:14,855 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 16:33:14,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:33:14,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:33:14,982 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:33:14,985 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:33:15,327 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-13 16:33:15,328 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:33:15,341 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:33:15,342 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 16:33:15,342 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:33:15 BoogieIcfgContainer [2024-11-13 16:33:15,343 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:33:15,346 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 16:33:15,346 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 16:33:15,352 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 16:33:15,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:33:14" (1/3) ... [2024-11-13 16:33:15,354 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50e7689d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:33:15, skipping insertion in model container [2024-11-13 16:33:15,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:14" (2/3) ... [2024-11-13 16:33:15,354 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50e7689d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:33:15, skipping insertion in model container [2024-11-13 16:33:15,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:33:15" (3/3) ... [2024-11-13 16:33:15,356 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-54.i [2024-11-13 16:33:15,374 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 16:33:15,376 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-54.i that has 2 procedures, 42 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 16:33:15,454 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:33:15,471 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;@c4ef06e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:33:15,472 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 16:33:15,477 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 29 states have internal predecessors, (37), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 16:33:15,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-13 16:33:15,490 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:33:15,491 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:33:15,492 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:33:15,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:33:15,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1093202058, now seen corresponding path program 1 times [2024-11-13 16:33:15,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:33:15,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [324787651] [2024-11-13 16:33:15,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:33:15,519 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 16:33:15,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ebea105-7658-4d3a-842b-68354374b571/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 16:33:15,525 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ebea105-7658-4d3a-842b-68354374b571/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 16:33:15,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ebea105-7658-4d3a-842b-68354374b571/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 16:33:15,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:15,806 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 16:33:15,812 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:33:15,882 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-13 16:33:15,882 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:33:15,883 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:33:15,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [324787651] [2024-11-13 16:33:15,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [324787651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:33:15,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:33:15,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:33:15,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680518931] [2024-11-13 16:33:15,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:33:15,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 16:33:15,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:33:15,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 16:33:15,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 16:33:15,918 INFO L87 Difference]: Start difference. First operand has 42 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 29 states have internal predecessors, (37), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 16:33:15,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:33:15,947 INFO L93 Difference]: Finished difference Result 81 states and 126 transitions. [2024-11-13 16:33:15,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 16:33:15,949 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 75 [2024-11-13 16:33:15,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:33:15,956 INFO L225 Difference]: With dead ends: 81 [2024-11-13 16:33:15,956 INFO L226 Difference]: Without dead ends: 38 [2024-11-13 16:33:15,959 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 74 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 16:33:15,963 INFO L432 NwaCegarLoop]: 55 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, 55 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 16:33:15,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 16:33:15,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-13 16:33:16,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-13 16:33:16,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 16:33:16,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 51 transitions. [2024-11-13 16:33:16,010 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 51 transitions. Word has length 75 [2024-11-13 16:33:16,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:33:16,010 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 51 transitions. [2024-11-13 16:33:16,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 16:33:16,011 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 51 transitions. [2024-11-13 16:33:16,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-13 16:33:16,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:33:16,014 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:33:16,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ebea105-7658-4d3a-842b-68354374b571/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)] Forceful destruction successful, exit code 0 [2024-11-13 16:33:16,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ebea105-7658-4d3a-842b-68354374b571/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 16:33:16,215 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:33:16,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:33:16,216 INFO L85 PathProgramCache]: Analyzing trace with hash -65123122, now seen corresponding path program 1 times [2024-11-13 16:33:16,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:33:16,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1357066256] [2024-11-13 16:33:16,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:33:16,216 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 16:33:16,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ebea105-7658-4d3a-842b-68354374b571/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 16:33:16,221 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ebea105-7658-4d3a-842b-68354374b571/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 16:33:16,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ebea105-7658-4d3a-842b-68354374b571/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 16:33:16,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:16,416 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 16:33:16,420 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:33:16,520 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-13 16:33:16,520 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:33:16,521 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:33:16,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1357066256] [2024-11-13 16:33:16,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1357066256] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:33:16,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:33:16,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 16:33:16,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701725408] [2024-11-13 16:33:16,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:33:16,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:33:16,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:33:16,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:33:16,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:33:16,526 INFO L87 Difference]: Start difference. First operand 38 states and 51 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-13 16:33:16,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:33:16,591 INFO L93 Difference]: Finished difference Result 75 states and 101 transitions. [2024-11-13 16:33:16,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:33:16,591 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 75 [2024-11-13 16:33:16,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:33:16,593 INFO L225 Difference]: With dead ends: 75 [2024-11-13 16:33:16,593 INFO L226 Difference]: Without dead ends: 40 [2024-11-13 16:33:16,593 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 16:33:16,594 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 14 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:33:16,594 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 123 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 16:33:16,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-13 16:33:16,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2024-11-13 16:33:16,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.12) internal successors, (28), 25 states have internal predecessors, (28), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 16:33:16,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 50 transitions. [2024-11-13 16:33:16,601 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 50 transitions. Word has length 75 [2024-11-13 16:33:16,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:33:16,603 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 50 transitions. [2024-11-13 16:33:16,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-13 16:33:16,603 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 50 transitions. [2024-11-13 16:33:16,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-13 16:33:16,605 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:33:16,605 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:33:16,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ebea105-7658-4d3a-842b-68354374b571/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)] Forceful destruction successful, exit code 0 [2024-11-13 16:33:16,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ebea105-7658-4d3a-842b-68354374b571/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 16:33:16,806 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:33:16,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:33:16,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1709884240, now seen corresponding path program 1 times [2024-11-13 16:33:16,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:33:16,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1275003564] [2024-11-13 16:33:16,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:33:16,807 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 16:33:16,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ebea105-7658-4d3a-842b-68354374b571/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 16:33:16,811 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ebea105-7658-4d3a-842b-68354374b571/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 16:33:16,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ebea105-7658-4d3a-842b-68354374b571/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 16:33:17,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:17,042 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-13 16:33:17,058 INFO L278 TraceCheckSpWp]: Computing forward predicates...