./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-68.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/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_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-68.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/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_d67de596-71ab-4e12-b204-8067503c53b7/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 a4fd4ec86d0542e34aa772f57fe8fd3f67e11de6063cb3b9506f2b9e03dc2d5e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:40:19,112 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:40:19,200 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 13:40:19,208 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:40:19,209 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:40:19,230 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:40:19,231 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:40:19,231 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:40:19,232 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:40:19,232 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:40:19,232 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:40:19,233 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:40:19,234 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:40:19,234 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:40:19,234 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:40:19,234 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:40:19,235 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:40:19,235 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:40:19,235 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:40:19,235 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:40:19,235 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:40:19,235 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:40:19,235 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:40:19,235 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:40:19,236 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:40:19,236 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:40:19,236 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:40:19,236 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:40:19,236 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:40:19,236 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:40:19,236 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:40:19,237 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:40:19,237 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:40:19,237 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:40:19,237 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:40:19,237 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:40:19,237 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:40:19,237 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:40:19,238 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:40:19,238 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:40:19,238 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:40:19,238 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:40:19,238 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/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 -> a4fd4ec86d0542e34aa772f57fe8fd3f67e11de6063cb3b9506f2b9e03dc2d5e [2024-11-13 13:40:19,568 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:40:19,580 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:40:19,583 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:40:19,585 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:40:19,585 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:40:19,586 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-68.i Unable to find full path for "g++" [2024-11-13 13:40:21,493 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:40:21,805 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:40:21,806 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-68.i [2024-11-13 13:40:21,813 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/data/aec129572/d1af6c5d9c4f49deb93b27203d1804b7/FLAG4a7ed1e98 [2024-11-13 13:40:21,827 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/data/aec129572/d1af6c5d9c4f49deb93b27203d1804b7 [2024-11-13 13:40:21,829 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:40:21,830 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:40:21,832 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:40:21,832 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:40:21,836 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:40:21,837 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:40:21" (1/1) ... [2024-11-13 13:40:21,838 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d095f1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:21, skipping insertion in model container [2024-11-13 13:40:21,838 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:40:21" (1/1) ... [2024-11-13 13:40:21,855 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:40:21,999 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_d67de596-71ab-4e12-b204-8067503c53b7/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-68.i[915,928] [2024-11-13 13:40:22,040 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:40:22,049 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:40:22,057 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_d67de596-71ab-4e12-b204-8067503c53b7/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-68.i[915,928] [2024-11-13 13:40:22,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:40:22,092 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:40:22,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:22 WrapperNode [2024-11-13 13:40:22,093 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:40:22,094 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:40:22,094 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:40:22,094 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:40:22,101 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:22" (1/1) ... [2024-11-13 13:40:22,114 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:22" (1/1) ... [2024-11-13 13:40:22,149 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 129 [2024-11-13 13:40:22,153 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:40:22,154 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:40:22,154 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:40:22,154 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:40:22,164 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:22" (1/1) ... [2024-11-13 13:40:22,165 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:22" (1/1) ... [2024-11-13 13:40:22,169 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:22" (1/1) ... [2024-11-13 13:40:22,188 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 13:40:22,188 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:22" (1/1) ... [2024-11-13 13:40:22,189 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:22" (1/1) ... [2024-11-13 13:40:22,193 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:22" (1/1) ... [2024-11-13 13:40:22,196 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:22" (1/1) ... [2024-11-13 13:40:22,198 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:22" (1/1) ... [2024-11-13 13:40:22,198 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:22" (1/1) ... [2024-11-13 13:40:22,200 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:40:22,201 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:40:22,201 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:40:22,201 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:40:22,202 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:22" (1/1) ... [2024-11-13 13:40:22,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:40:22,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:40:22,244 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:40:22,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:40:22,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:40:22,274 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 13:40:22,274 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 13:40:22,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 13:40:22,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:40:22,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:40:22,369 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:40:22,371 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:40:22,677 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-13 13:40:22,677 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:40:22,687 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:40:22,687 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 13:40:22,687 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:40:22 BoogieIcfgContainer [2024-11-13 13:40:22,688 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:40:22,690 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:40:22,690 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:40:22,695 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:40:22,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:40:21" (1/3) ... [2024-11-13 13:40:22,696 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c5780ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:40:22, skipping insertion in model container [2024-11-13 13:40:22,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:22" (2/3) ... [2024-11-13 13:40:22,697 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c5780ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:40:22, skipping insertion in model container [2024-11-13 13:40:22,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:40:22" (3/3) ... [2024-11-13 13:40:22,698 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-68.i [2024-11-13 13:40:22,713 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:40:22,714 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-68.i that has 2 procedures, 55 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 13:40:22,769 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:40:22,780 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;@30077f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:40:22,781 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 13:40:22,785 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 38 states have (on average 1.368421052631579) internal successors, (52), 39 states have internal predecessors, (52), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 13:40:22,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-13 13:40:22,794 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:40:22,795 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:40:22,795 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:40:22,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:40:22,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1716308454, now seen corresponding path program 1 times [2024-11-13 13:40:22,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:40:22,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481690836] [2024-11-13 13:40:22,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:40:22,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:40:22,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:23,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 13:40:23,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:23,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 13:40:23,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:23,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 13:40:23,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:23,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 13:40:23,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:23,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-13 13:40:23,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:23,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-13 13:40:23,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:23,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-13 13:40:23,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:23,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-13 13:40:23,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:23,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-13 13:40:23,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:23,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-13 13:40:23,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:23,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 13:40:23,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:23,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-13 13:40:23,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:23,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 13:40:23,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:23,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 13:40:23,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:23,163 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 13:40:23,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:40:23,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481690836] [2024-11-13 13:40:23,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481690836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:40:23,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:40:23,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:40:23,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102519614] [2024-11-13 13:40:23,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:40:23,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 13:40:23,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:40:23,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 13:40:23,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 13:40:23,212 INFO L87 Difference]: Start difference. First operand has 55 states, 38 states have (on average 1.368421052631579) internal successors, (52), 39 states have internal predecessors, (52), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 13:40:23,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:40:23,234 INFO L93 Difference]: Finished difference Result 107 states and 171 transitions. [2024-11-13 13:40:23,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 13:40:23,236 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 94 [2024-11-13 13:40:23,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:40:23,242 INFO L225 Difference]: With dead ends: 107 [2024-11-13 13:40:23,242 INFO L226 Difference]: Without dead ends: 51 [2024-11-13 13:40:23,245 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 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 13:40:23,248 INFO L432 NwaCegarLoop]: 77 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, 77 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 13:40:23,249 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:40:23,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-13 13:40:23,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-11-13 13:40:23,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 35 states have internal predecessors, (45), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 13:40:23,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 73 transitions. [2024-11-13 13:40:23,285 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 73 transitions. Word has length 94 [2024-11-13 13:40:23,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:40:23,285 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 73 transitions. [2024-11-13 13:40:23,286 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, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 13:40:23,286 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 73 transitions. [2024-11-13 13:40:23,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-13 13:40:23,289 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:40:23,289 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:40:23,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:40:23,289 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:40:23,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:40:23,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1213616098, now seen corresponding path program 1 times [2024-11-13 13:40:23,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:40:23,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062091978] [2024-11-13 13:40:23,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:40:23,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:40:23,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:23,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 13:40:23,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:23,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 13:40:23,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:23,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 13:40:23,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:23,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 13:40:23,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:23,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-13 13:40:23,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:23,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-13 13:40:23,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:23,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-13 13:40:23,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:23,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-13 13:40:23,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:23,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-13 13:40:23,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:23,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-13 13:40:23,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:23,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 13:40:23,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:23,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-13 13:40:23,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:23,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 13:40:23,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:24,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 13:40:24,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:24,008 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 13:40:24,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:40:24,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062091978] [2024-11-13 13:40:24,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062091978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:40:24,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:40:24,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:40:24,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123609018] [2024-11-13 13:40:24,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:40:24,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:40:24,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:40:24,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:40:24,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:40:24,014 INFO L87 Difference]: Start difference. First operand 51 states and 73 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:40:24,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:40:24,208 INFO L93 Difference]: Finished difference Result 118 states and 169 transitions. [2024-11-13 13:40:24,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:40:24,209 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 94 [2024-11-13 13:40:24,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:40:24,210 INFO L225 Difference]: With dead ends: 118 [2024-11-13 13:40:24,213 INFO L226 Difference]: Without dead ends: 70 [2024-11-13 13:40:24,214 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 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 13:40:24,214 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 20 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:40:24,215 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 182 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:40:24,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-11-13 13:40:24,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 60. [2024-11-13 13:40:24,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 44 states have (on average 1.3409090909090908) internal successors, (59), 44 states have internal predecessors, (59), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 13:40:24,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 87 transitions. [2024-11-13 13:40:24,235 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 87 transitions. Word has length 94 [2024-11-13 13:40:24,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:40:24,236 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 87 transitions. [2024-11-13 13:40:24,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:40:24,237 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 87 transitions. [2024-11-13 13:40:24,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-13 13:40:24,243 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:40:24,243 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:40:24,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 13:40:24,243 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:40:24,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:40:24,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1326875821, now seen corresponding path program 1 times [2024-11-13 13:40:24,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:40:24,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174309566] [2024-11-13 13:40:24,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:40:24,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:40:24,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:24,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 13:40:24,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:24,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 13:40:24,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:24,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 13:40:24,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:24,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 13:40:24,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:24,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-13 13:40:24,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:24,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-13 13:40:24,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:24,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-13 13:40:24,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:24,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-13 13:40:24,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:24,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-13 13:40:24,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:24,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-13 13:40:24,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:24,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 13:40:24,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:24,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-13 13:40:24,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:24,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 13:40:24,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:24,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 13:40:24,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:24,722 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 12 proven. 27 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-13 13:40:24,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:40:24,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174309566] [2024-11-13 13:40:24,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174309566] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:40:24,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589593800] [2024-11-13 13:40:24,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:40:24,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:40:24,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:40:24,728 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:40:24,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 13:40:24,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:24,904 INFO L255 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 13:40:24,913 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:40:25,463 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 165 proven. 27 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-13 13:40:25,464 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:40:25,839 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 12 proven. 27 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-13 13:40:25,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589593800] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:40:25,839 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:40:25,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 7] total 15 [2024-11-13 13:40:25,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640296596] [2024-11-13 13:40:25,840 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:40:25,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-13 13:40:25,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:40:25,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-13 13:40:25,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2024-11-13 13:40:25,845 INFO L87 Difference]: Start difference. First operand 60 states and 87 transitions. Second operand has 15 states, 14 states have (on average 4.357142857142857) internal successors, (61), 15 states have internal predecessors, (61), 5 states have call successors, (42), 3 states have call predecessors, (42), 6 states have return successors, (42), 5 states have call predecessors, (42), 5 states have call successors, (42) [2024-11-13 13:40:26,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:40:26,556 INFO L93 Difference]: Finished difference Result 230 states and 328 transitions. [2024-11-13 13:40:26,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-13 13:40:26,557 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.357142857142857) internal successors, (61), 15 states have internal predecessors, (61), 5 states have call successors, (42), 3 states have call predecessors, (42), 6 states have return successors, (42), 5 states have call predecessors, (42), 5 states have call successors, (42) Word has length 95 [2024-11-13 13:40:26,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:40:26,559 INFO L225 Difference]: With dead ends: 230 [2024-11-13 13:40:26,562 INFO L226 Difference]: Without dead ends: 173 [2024-11-13 13:40:26,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=196, Invalid=454, Unknown=0, NotChecked=0, Total=650 [2024-11-13 13:40:26,564 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 373 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 13:40:26,565 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 227 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 13:40:26,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-11-13 13:40:26,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 132. [2024-11-13 13:40:26,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 100 states have (on average 1.36) internal successors, (136), 100 states have internal predecessors, (136), 28 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-13 13:40:26,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 192 transitions. [2024-11-13 13:40:26,605 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 192 transitions. Word has length 95 [2024-11-13 13:40:26,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:40:26,606 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 192 transitions. [2024-11-13 13:40:26,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.357142857142857) internal successors, (61), 15 states have internal predecessors, (61), 5 states have call successors, (42), 3 states have call predecessors, (42), 6 states have return successors, (42), 5 states have call predecessors, (42), 5 states have call successors, (42) [2024-11-13 13:40:26,610 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 192 transitions. [2024-11-13 13:40:26,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-13 13:40:26,611 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:40:26,611 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:40:26,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 13:40:26,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:40:26,812 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:40:26,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:40:26,813 INFO L85 PathProgramCache]: Analyzing trace with hash 50129245, now seen corresponding path program 1 times [2024-11-13 13:40:26,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:40:26,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859195472] [2024-11-13 13:40:26,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:40:26,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:40:26,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 13:40:26,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [786312123] [2024-11-13 13:40:26,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:40:26,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:40:26,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:40:26,865 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:40:26,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 13:40:26,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:26,977 INFO L255 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-13 13:40:26,981 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:40:27,460 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 13:40:27,460 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:40:27,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:40:27,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859195472] [2024-11-13 13:40:27,462 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 13:40:27,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [786312123] [2024-11-13 13:40:27,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [786312123] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:40:27,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:40:27,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 13:40:27,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703409908] [2024-11-13 13:40:27,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:40:27,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:40:27,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:40:27,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:40:27,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:40:27,468 INFO L87 Difference]: Start difference. First operand 132 states and 192 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:40:27,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:40:27,792 INFO L93 Difference]: Finished difference Result 297 states and 431 transitions. [2024-11-13 13:40:27,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:40:27,793 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 96 [2024-11-13 13:40:27,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:40:27,795 INFO L225 Difference]: With dead ends: 297 [2024-11-13 13:40:27,796 INFO L226 Difference]: Without dead ends: 166 [2024-11-13 13:40:27,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-13 13:40:27,797 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 21 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:40:27,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 284 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 13:40:27,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-11-13 13:40:27,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2024-11-13 13:40:27,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 118 states have (on average 1.3135593220338984) internal successors, (155), 118 states have internal predecessors, (155), 42 states have call successors, (42), 5 states have call predecessors, (42), 5 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-13 13:40:27,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 239 transitions. [2024-11-13 13:40:27,837 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 239 transitions. Word has length 96 [2024-11-13 13:40:27,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:40:27,838 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 239 transitions. [2024-11-13 13:40:27,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:40:27,838 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 239 transitions. [2024-11-13 13:40:27,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-13 13:40:27,844 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:40:27,844 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:40:27,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-13 13:40:28,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:40:28,045 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:40:28,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:40:28,046 INFO L85 PathProgramCache]: Analyzing trace with hash -618918816, now seen corresponding path program 1 times [2024-11-13 13:40:28,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:40:28,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435481296] [2024-11-13 13:40:28,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:40:28,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:40:28,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:29,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 13:40:29,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:29,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 13:40:29,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:29,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-13 13:40:29,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:29,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-13 13:40:29,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:29,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-13 13:40:29,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:29,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-13 13:40:29,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:29,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-13 13:40:29,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:29,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-13 13:40:29,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:29,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-13 13:40:29,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:29,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-13 13:40:29,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:29,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 13:40:29,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:29,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-13 13:40:29,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:29,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 13:40:29,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:29,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 13:40:29,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:29,145 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 13:40:29,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:40:29,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435481296] [2024-11-13 13:40:29,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435481296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:40:29,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:40:29,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 13:40:29,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279038332] [2024-11-13 13:40:29,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:40:29,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 13:40:29,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:40:29,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 13:40:29,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-13 13:40:29,149 INFO L87 Difference]: Start difference. First operand 166 states and 239 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:40:30,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:40:30,252 INFO L93 Difference]: Finished difference Result 359 states and 507 transitions. [2024-11-13 13:40:30,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 13:40:30,252 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 98 [2024-11-13 13:40:30,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:40:30,255 INFO L225 Difference]: With dead ends: 359 [2024-11-13 13:40:30,256 INFO L226 Difference]: Without dead ends: 230 [2024-11-13 13:40:30,257 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-13 13:40:30,258 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 100 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 13:40:30,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 450 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 13:40:30,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-11-13 13:40:30,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 209. [2024-11-13 13:40:30,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 152 states have (on average 1.25) internal successors, (190), 154 states have internal predecessors, (190), 49 states have call successors, (49), 7 states have call predecessors, (49), 7 states have return successors, (49), 47 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-13 13:40:30,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 288 transitions. [2024-11-13 13:40:30,304 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 288 transitions. Word has length 98 [2024-11-13 13:40:30,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:40:30,306 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 288 transitions. [2024-11-13 13:40:30,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:40:30,306 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 288 transitions. [2024-11-13 13:40:30,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-13 13:40:30,309 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:40:30,310 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:40:30,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 13:40:30,310 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:40:30,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:40:30,311 INFO L85 PathProgramCache]: Analyzing trace with hash 914449927, now seen corresponding path program 1 times [2024-11-13 13:40:30,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:40:30,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991008918] [2024-11-13 13:40:30,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:40:30,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:40:30,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 13:40:30,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1549394243] [2024-11-13 13:40:30,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:40:30,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:40:30,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:40:30,359 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:40:30,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 13:40:30,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:40:30,467 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:40:30,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:40:30,595 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:40:30,595 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 13:40:30,597 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 13:40:30,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-13 13:40:30,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:40:30,802 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-13 13:40:30,863 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 13:40:30,870 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:40:30 BoogieIcfgContainer [2024-11-13 13:40:30,870 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 13:40:30,871 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 13:40:30,871 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 13:40:30,871 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 13:40:30,872 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:40:22" (3/4) ... [2024-11-13 13:40:30,874 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 13:40:30,875 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 13:40:30,876 INFO L158 Benchmark]: Toolchain (without parser) took 9045.61ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 67.5MB in the end (delta: 25.3MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. [2024-11-13 13:40:30,876 INFO L158 Benchmark]: CDTParser took 1.81ms. Allocated memory is still 117.4MB. Free memory is still 72.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:40:30,877 INFO L158 Benchmark]: CACSL2BoogieTranslator took 261.24ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 80.3MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:40:30,879 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.64ms. Allocated memory is still 117.4MB. Free memory was 80.0MB in the beginning and 78.5MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:40:30,879 INFO L158 Benchmark]: Boogie Preprocessor took 46.79ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 76.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:40:30,880 INFO L158 Benchmark]: RCFGBuilder took 486.57ms. Allocated memory is still 117.4MB. Free memory was 76.9MB in the beginning and 62.0MB in the end (delta: 14.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 13:40:30,880 INFO L158 Benchmark]: TraceAbstraction took 8180.57ms. Allocated memory is still 117.4MB. Free memory was 61.2MB in the beginning and 67.5MB in the end (delta: -6.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:40:30,880 INFO L158 Benchmark]: Witness Printer took 4.21ms. Allocated memory is still 117.4MB. Free memory was 67.5MB in the beginning and 67.5MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:40:30,882 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.81ms. Allocated memory is still 117.4MB. Free memory is still 72.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 261.24ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 80.3MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.64ms. Allocated memory is still 117.4MB. Free memory was 80.0MB in the beginning and 78.5MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.79ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 76.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 486.57ms. Allocated memory is still 117.4MB. Free memory was 76.9MB in the beginning and 62.0MB in the end (delta: 14.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 8180.57ms. Allocated memory is still 117.4MB. Free memory was 61.2MB in the beginning and 67.5MB in the end (delta: -6.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.21ms. Allocated memory is still 117.4MB. Free memory was 67.5MB in the beginning and 67.5MB in the end (delta: 21.1kB). 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 shiftRight at line 48, overapproximation of shiftRight at line 94, overapproximation of someBinaryFLOATComparisonOperation at line 67, overapproximation of someBinaryFLOATComparisonOperation at line 69, overapproximation of someBinaryDOUBLEComparisonOperation at line 39, overapproximation of someBinaryDOUBLEComparisonOperation at line 94, overapproximation of someBinaryDOUBLEComparisonOperation at line 94, overapproximation of someBinaryDOUBLEComparisonOperation at line 87. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = 32; [L23] float var_1_2 = 64.5; [L24] float var_1_3 = 16.8; [L25] signed long int var_1_8 = 10; [L26] signed long int var_1_9 = 25; [L27] double var_1_10 = 0.75; [L28] signed long int var_1_11 = 2; [L29] signed long int var_1_12 = 32; [L30] unsigned char var_1_13 = 0; [L31] unsigned char var_1_14 = 0; [L32] double var_1_15 = 50.2; [L33] signed long int last_1_var_1_9 = 25; [L34] double last_1_var_1_10 = 0.75; VAL [isInitial=0, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=2, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=251/5, var_1_1=32, var_1_2=129/2, var_1_3=84/5, var_1_8=10, var_1_9=25] [L98] isInitial = 1 [L99] FCALL initially() [L100] int k_loop; [L101] k_loop = 0 VAL [isInitial=1, k_loop=0, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=2, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=251/5, var_1_1=32, var_1_2=129/2, var_1_3=84/5, var_1_8=10, var_1_9=25] [L101] COND TRUE k_loop < 1 [L102] CALL updateLastVariables() [L90] last_1_var_1_9 = var_1_9 [L91] last_1_var_1_10 = var_1_10 VAL [isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=2, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=251/5, var_1_1=32, var_1_2=129/2, var_1_3=84/5, var_1_8=10, var_1_9=25] [L102] RET updateLastVariables() [L103] CALL updateVariables() [L66] var_1_2 = __VERIFIER_nondet_float() [L67] CALL assume_abort_if_not((var_1_2 >= 0.0F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=2, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=251/5, var_1_1=32, var_1_3=84/5, var_1_8=10, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=2, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=251/5, var_1_1=32, var_1_3=84/5, var_1_8=10, var_1_9=25] [L67] RET assume_abort_if_not((var_1_2 >= 0.0F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=2, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=251/5, var_1_1=32, var_1_3=84/5, var_1_8=10, var_1_9=25] [L68] var_1_3 = __VERIFIER_nondet_float() [L69] CALL assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=2, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=251/5, var_1_1=32, var_1_8=10, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=2, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=251/5, var_1_1=32, var_1_8=10, var_1_9=25] [L69] RET assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=2, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=251/5, var_1_1=32, var_1_8=10, var_1_9=25] [L70] var_1_8 = __VERIFIER_nondet_long() [L71] CALL assume_abort_if_not(var_1_8 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=2, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=251/5, var_1_1=32, var_1_8=27, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=2, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=251/5, var_1_1=32, var_1_8=27, var_1_9=25] [L71] RET assume_abort_if_not(var_1_8 >= -2147483648) VAL [isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=2, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=251/5, var_1_1=32, var_1_8=27, var_1_9=25] [L72] CALL assume_abort_if_not(var_1_8 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=2, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=251/5, var_1_1=32, var_1_8=27, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=2, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=251/5, var_1_1=32, var_1_8=27, var_1_9=25] [L72] RET assume_abort_if_not(var_1_8 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=2, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=251/5, var_1_1=32, var_1_8=27, var_1_9=25] [L73] CALL assume_abort_if_not(var_1_8 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=2, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=251/5, var_1_1=32, var_1_8=27, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=2, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=251/5, var_1_1=32, var_1_8=27, var_1_9=25] [L73] RET assume_abort_if_not(var_1_8 != 0) VAL [isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=2, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=251/5, var_1_1=32, var_1_8=27, var_1_9=25] [L74] var_1_11 = __VERIFIER_nondet_long() [L75] CALL assume_abort_if_not(var_1_11 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=1, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=251/5, var_1_1=32, var_1_8=27, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=1, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=251/5, var_1_1=32, var_1_8=27, var_1_9=25] [L75] RET assume_abort_if_not(var_1_11 >= -1) VAL [isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=1, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=251/5, var_1_1=32, var_1_8=27, var_1_9=25] [L76] CALL assume_abort_if_not(var_1_11 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=1, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=251/5, var_1_1=32, var_1_8=27, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=1, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=251/5, var_1_1=32, var_1_8=27, var_1_9=25] [L76] RET assume_abort_if_not(var_1_11 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=1, var_1_12=32, var_1_13=0, var_1_14=0, var_1_15=251/5, var_1_1=32, var_1_8=27, var_1_9=25] [L77] var_1_12 = __VERIFIER_nondet_long() [L78] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=1, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=251/5, var_1_1=32, var_1_8=27, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=1, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=251/5, var_1_1=32, var_1_8=27, var_1_9=25] [L78] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=1, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=251/5, var_1_1=32, var_1_8=27, var_1_9=25] [L79] CALL assume_abort_if_not(var_1_12 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=1, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=251/5, var_1_1=32, var_1_8=27, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=1, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=251/5, var_1_1=32, var_1_8=27, var_1_9=25] [L79] RET assume_abort_if_not(var_1_12 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=1, var_1_12=0, var_1_13=0, var_1_14=0, var_1_15=251/5, var_1_1=32, var_1_8=27, var_1_9=25] [L80] var_1_13 = __VERIFIER_nondet_uchar() [L81] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=1, var_1_12=0, var_1_14=0, var_1_15=251/5, var_1_1=32, var_1_8=27, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=1, var_1_12=0, var_1_14=0, var_1_15=251/5, var_1_1=32, var_1_8=27, var_1_9=25] [L81] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=1, var_1_12=0, var_1_14=0, var_1_15=251/5, var_1_1=32, var_1_8=27, var_1_9=25] [L82] CALL assume_abort_if_not(var_1_13 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=251/5, var_1_1=32, var_1_8=27, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=251/5, var_1_1=32, var_1_8=27, var_1_9=25] [L82] RET assume_abort_if_not(var_1_13 <= 1) VAL [isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=251/5, var_1_1=32, var_1_8=27, var_1_9=25] [L83] var_1_14 = __VERIFIER_nondet_uchar() [L84] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=1, var_1_12=0, var_1_13=1, var_1_15=251/5, var_1_1=32, var_1_8=27, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=1, var_1_12=0, var_1_13=1, var_1_15=251/5, var_1_1=32, var_1_8=27, var_1_9=25] [L84] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=1, var_1_12=0, var_1_13=1, var_1_15=251/5, var_1_1=32, var_1_8=27, var_1_9=25] [L85] CALL assume_abort_if_not(var_1_14 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=1, var_1_15=251/5, var_1_1=32, var_1_8=27, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=1, var_1_15=251/5, var_1_1=32, var_1_8=27, var_1_9=25] [L85] RET assume_abort_if_not(var_1_14 <= 1) VAL [isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=1, var_1_15=251/5, var_1_1=32, var_1_8=27, var_1_9=25] [L86] var_1_15 = __VERIFIER_nondet_double() [L87] CALL assume_abort_if_not((var_1_15 >= -922337.2036854765600e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=1, var_1_1=32, var_1_8=27, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=1, var_1_1=32, var_1_8=27, var_1_9=25] [L87] RET assume_abort_if_not((var_1_15 >= -922337.2036854765600e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=3/4, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=1, var_1_1=32, var_1_8=27, var_1_9=25] [L103] RET updateVariables() [L104] CALL step() [L38] signed long int stepLocal_0 = last_1_var_1_9 + last_1_var_1_9; VAL [isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, stepLocal_0=50, var_1_10=3/4, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=1, var_1_1=32, var_1_8=27, var_1_9=25] [L39] COND FALSE !((var_1_2 - var_1_3) >= last_1_var_1_10) [L44] var_1_1 = last_1_var_1_9 VAL [isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, stepLocal_0=50, var_1_10=3/4, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=1, var_1_1=25, var_1_8=27, var_1_9=25] [L46] signed long int stepLocal_2 = var_1_1; [L47] signed long int stepLocal_1 = var_1_1; VAL [isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, stepLocal_0=50, stepLocal_1=25, stepLocal_2=25, var_1_10=3/4, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=1, var_1_1=25, var_1_8=27, var_1_9=25] [L48] EXPR var_1_8 >> last_1_var_1_9 VAL [isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, stepLocal_0=50, stepLocal_1=25, stepLocal_2=25, var_1_10=3/4, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=1, var_1_1=25, var_1_8=27, var_1_9=25] [L48] COND FALSE !((var_1_8 >> last_1_var_1_9) > stepLocal_1) [L55] var_1_9 = last_1_var_1_9 VAL [isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, stepLocal_0=50, stepLocal_2=25, var_1_10=3/4, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=1, var_1_1=25, var_1_8=27, var_1_9=25] [L57] COND TRUE ((((var_1_9) > (var_1_1)) ? (var_1_9) : (var_1_1))) == (var_1_9 * (var_1_11 - var_1_12)) VAL [isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, stepLocal_0=50, stepLocal_2=25, var_1_10=3/4, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=1, var_1_1=25, var_1_8=27, var_1_9=25] [L58] COND TRUE var_1_13 || var_1_14 [L59] var_1_10 = var_1_15 VAL [isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, stepLocal_0=50, stepLocal_2=25, var_1_10=2, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=1, var_1_15=2, var_1_1=25, var_1_8=27, var_1_9=25] [L104] RET step() [L105] CALL, EXPR property() [L94] EXPR (((var_1_2 - var_1_3) >= last_1_var_1_10) ? (((last_1_var_1_9 + last_1_var_1_9) >= (last_1_var_1_9 / var_1_8)) ? (var_1_1 == ((signed long int) last_1_var_1_9)) : 1) : (var_1_1 == ((signed long int) last_1_var_1_9))) && (((var_1_8 >> last_1_var_1_9) > var_1_1) ? (((var_1_1 >> 8) > var_1_1) ? (var_1_9 == ((signed long int) var_1_1)) : (var_1_9 == ((signed long int) last_1_var_1_9))) : (var_1_9 == ((signed long int) last_1_var_1_9))) VAL [isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=2, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=1, var_1_15=2, var_1_1=25, var_1_8=27, var_1_9=25] [L94] EXPR var_1_8 >> last_1_var_1_9 VAL [isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=2, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=1, var_1_15=2, var_1_1=25, var_1_8=27, var_1_9=25] [L94] EXPR (((var_1_2 - var_1_3) >= last_1_var_1_10) ? (((last_1_var_1_9 + last_1_var_1_9) >= (last_1_var_1_9 / var_1_8)) ? (var_1_1 == ((signed long int) last_1_var_1_9)) : 1) : (var_1_1 == ((signed long int) last_1_var_1_9))) && (((var_1_8 >> last_1_var_1_9) > var_1_1) ? (((var_1_1 >> 8) > var_1_1) ? (var_1_9 == ((signed long int) var_1_1)) : (var_1_9 == ((signed long int) last_1_var_1_9))) : (var_1_9 == ((signed long int) last_1_var_1_9))) VAL [isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=2, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=1, var_1_15=2, var_1_1=25, var_1_8=27, var_1_9=25] [L94-L95] return ((((var_1_2 - var_1_3) >= last_1_var_1_10) ? (((last_1_var_1_9 + last_1_var_1_9) >= (last_1_var_1_9 / var_1_8)) ? (var_1_1 == ((signed long int) last_1_var_1_9)) : 1) : (var_1_1 == ((signed long int) last_1_var_1_9))) && (((var_1_8 >> last_1_var_1_9) > var_1_1) ? (((var_1_1 >> 8) > var_1_1) ? (var_1_9 == ((signed long int) var_1_1)) : (var_1_9 == ((signed long int) last_1_var_1_9))) : (var_1_9 == ((signed long int) last_1_var_1_9)))) && ((((((var_1_9) > (var_1_1)) ? (var_1_9) : (var_1_1))) == (var_1_9 * (var_1_11 - var_1_12))) ? ((var_1_13 || var_1_14) ? (var_1_10 == ((double) var_1_15)) : (var_1_10 == ((double) var_1_15))) : 1) ; [L105] RET, EXPR property() [L105] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=2, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=1, var_1_15=2, var_1_1=25, var_1_8=27, var_1_9=25] [L19] reach_error() VAL [isInitial=1, last_1_var_1_10=3/4, last_1_var_1_9=25, var_1_10=2, var_1_11=1, var_1_12=0, var_1_13=1, var_1_14=1, var_1_15=2, var_1_1=25, var_1_8=27, var_1_9=25] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.0s, OverallIterations: 6, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 530 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 514 mSDsluCounter, 1220 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 872 mSDsCounter, 167 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 804 IncrementalHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 167 mSolverCounterUnsat, 348 mSDtfsCounter, 804 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 450 GetRequests, 405 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=209occurred in iteration=5, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 72 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 866 NumberOfCodeBlocks, 866 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 660 ConstructedInterpolants, 0 QuantifiedInterpolants, 2209 SizeOfPredicates, 7 NumberOfNonLiveVariables, 450 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 2467/2548 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 13:40:30,905 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/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_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-68.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/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_d67de596-71ab-4e12-b204-8067503c53b7/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 a4fd4ec86d0542e34aa772f57fe8fd3f67e11de6063cb3b9506f2b9e03dc2d5e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:40:33,604 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:40:33,703 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-13 13:40:33,712 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:40:33,713 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:40:33,751 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:40:33,754 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:40:33,754 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:40:33,755 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:40:33,755 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:40:33,755 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:40:33,755 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:40:33,756 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:40:33,756 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:40:33,757 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:40:33,757 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:40:33,757 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:40:33,757 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:40:33,757 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:40:33,759 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:40:33,759 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:40:33,759 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:40:33,759 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:40:33,759 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 13:40:33,759 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 13:40:33,760 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:40:33,760 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 13:40:33,760 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:40:33,760 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:40:33,760 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:40:33,760 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:40:33,760 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:40:33,760 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:40:33,760 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:40:33,760 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:40:33,761 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:40:33,761 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:40:33,761 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:40:33,761 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 13:40:33,761 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 13:40:33,761 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:40:33,761 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:40:33,761 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:40:33,761 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:40:33,761 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_d67de596-71ab-4e12-b204-8067503c53b7/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 -> a4fd4ec86d0542e34aa772f57fe8fd3f67e11de6063cb3b9506f2b9e03dc2d5e [2024-11-13 13:40:34,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:40:34,143 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:40:34,147 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:40:34,149 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:40:34,149 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:40:34,150 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-68.i Unable to find full path for "g++" [2024-11-13 13:40:36,206 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:40:36,430 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:40:36,431 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-68.i [2024-11-13 13:40:36,447 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/data/2764ca263/b5a9e819b148474693fa37317e5b504c/FLAGe1581b7d6 [2024-11-13 13:40:36,490 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/data/2764ca263/b5a9e819b148474693fa37317e5b504c [2024-11-13 13:40:36,493 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:40:36,495 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:40:36,496 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:40:36,497 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:40:36,513 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:40:36,514 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:40:36" (1/1) ... [2024-11-13 13:40:36,514 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d82599d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:36, skipping insertion in model container [2024-11-13 13:40:36,515 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:40:36" (1/1) ... [2024-11-13 13:40:36,539 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:40:36,717 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_d67de596-71ab-4e12-b204-8067503c53b7/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-68.i[915,928] [2024-11-13 13:40:36,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:40:36,803 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:40:36,819 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_d67de596-71ab-4e12-b204-8067503c53b7/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-68.i[915,928] [2024-11-13 13:40:36,857 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:40:36,874 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:40:36,875 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:36 WrapperNode [2024-11-13 13:40:36,875 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:40:36,876 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:40:36,876 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:40:36,877 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:40:36,884 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:36" (1/1) ... [2024-11-13 13:40:36,892 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:36" (1/1) ... [2024-11-13 13:40:36,913 INFO L138 Inliner]: procedures = 27, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 107 [2024-11-13 13:40:36,914 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:40:36,914 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:40:36,915 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:40:36,915 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:40:36,924 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:36" (1/1) ... [2024-11-13 13:40:36,924 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:36" (1/1) ... [2024-11-13 13:40:36,927 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:36" (1/1) ... [2024-11-13 13:40:36,939 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 13:40:36,940 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:36" (1/1) ... [2024-11-13 13:40:36,940 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:36" (1/1) ... [2024-11-13 13:40:36,947 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:36" (1/1) ... [2024-11-13 13:40:36,950 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:36" (1/1) ... [2024-11-13 13:40:36,952 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:36" (1/1) ... [2024-11-13 13:40:36,958 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:36" (1/1) ... [2024-11-13 13:40:36,961 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:40:36,963 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:40:36,963 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:40:36,963 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:40:36,966 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:36" (1/1) ... [2024-11-13 13:40:36,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:40:36,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:40:36,997 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:40:37,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:40:37,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:40:37,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 13:40:37,025 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 13:40:37,025 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 13:40:37,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:40:37,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:40:37,111 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:40:37,113 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:40:38,404 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-13 13:40:38,404 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:40:38,418 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:40:38,418 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 13:40:38,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:40:38 BoogieIcfgContainer [2024-11-13 13:40:38,419 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:40:38,421 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:40:38,422 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:40:38,427 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:40:38,428 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:40:36" (1/3) ... [2024-11-13 13:40:38,429 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3afe9625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:40:38, skipping insertion in model container [2024-11-13 13:40:38,429 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:36" (2/3) ... [2024-11-13 13:40:38,430 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3afe9625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:40:38, skipping insertion in model container [2024-11-13 13:40:38,430 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:40:38" (3/3) ... [2024-11-13 13:40:38,432 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-68.i [2024-11-13 13:40:38,454 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:40:38,455 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-68.i that has 2 procedures, 48 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 13:40:38,537 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:40:38,552 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;@7e512c84, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:40:38,552 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 13:40:38,555 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 32 states have internal predecessors, (42), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 13:40:38,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-13 13:40:38,564 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:40:38,564 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:40:38,565 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:40:38,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:40:38,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1653138176, now seen corresponding path program 1 times [2024-11-13 13:40:38,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:40:38,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1543522609] [2024-11-13 13:40:38,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:40:38,581 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 13:40:38,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:40:38,585 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/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 13:40:38,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/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 13:40:38,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:38,847 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 13:40:38,855 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:40:38,930 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-11-13 13:40:38,931 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:40:38,931 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:40:38,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1543522609] [2024-11-13 13:40:38,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1543522609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:40:38,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:40:38,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:40:38,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843917165] [2024-11-13 13:40:38,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:40:38,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 13:40:38,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:40:38,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 13:40:38,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 13:40:38,965 INFO L87 Difference]: Start difference. First operand has 48 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 32 states have internal predecessors, (42), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:40:38,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:40:38,999 INFO L93 Difference]: Finished difference Result 93 states and 151 transitions. [2024-11-13 13:40:39,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 13:40:39,002 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 91 [2024-11-13 13:40:39,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:40:39,010 INFO L225 Difference]: With dead ends: 93 [2024-11-13 13:40:39,010 INFO L226 Difference]: Without dead ends: 44 [2024-11-13 13:40:39,015 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 90 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 13:40:39,020 INFO L432 NwaCegarLoop]: 67 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, 67 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 13:40:39,021 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:40:39,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-13 13:40:39,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2024-11-13 13:40:39,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 28 states have (on average 1.25) internal successors, (35), 28 states have internal predecessors, (35), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 13:40:39,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 63 transitions. [2024-11-13 13:40:39,075 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 63 transitions. Word has length 91 [2024-11-13 13:40:39,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:40:39,077 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 63 transitions. [2024-11-13 13:40:39,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:40:39,078 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 63 transitions. [2024-11-13 13:40:39,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-13 13:40:39,082 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:40:39,082 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:40:39,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-13 13:40:39,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/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 13:40:39,284 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:40:39,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:40:39,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1877564984, now seen corresponding path program 1 times [2024-11-13 13:40:39,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:40:39,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1347218603] [2024-11-13 13:40:39,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:40:39,286 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 13:40:39,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:40:39,289 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/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 13:40:39,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/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 13:40:39,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:40:39,630 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 13:40:39,642 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:40:59,108 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 13:40:59,108 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:40:59,108 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:40:59,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1347218603] [2024-11-13 13:40:59,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1347218603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:40:59,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:40:59,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 13:40:59,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2569116] [2024-11-13 13:40:59,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:40:59,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 13:40:59,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:40:59,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 13:40:59,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-13 13:40:59,112 INFO L87 Difference]: Start difference. First operand 44 states and 63 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:41:37,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:41:37,124 INFO L93 Difference]: Finished difference Result 113 states and 157 transitions. [2024-11-13 13:41:37,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 13:41:37,137 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 91 [2024-11-13 13:41:37,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:41:37,139 INFO L225 Difference]: With dead ends: 113 [2024-11-13 13:41:37,139 INFO L226 Difference]: Without dead ends: 111 [2024-11-13 13:41:37,140 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 17.6s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-13 13:41:37,141 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 77 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.7s IncrementalHoareTripleChecker+Time [2024-11-13 13:41:37,141 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 289 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 31.7s Time] [2024-11-13 13:41:37,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-13 13:41:37,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 90. [2024-11-13 13:41:37,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 59 states have (on average 1.2881355932203389) internal successors, (76), 59 states have internal predecessors, (76), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-13 13:41:37,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 132 transitions. [2024-11-13 13:41:37,176 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 132 transitions. Word has length 91 [2024-11-13 13:41:37,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:41:37,179 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 132 transitions. [2024-11-13 13:41:37,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:41:37,180 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 132 transitions. [2024-11-13 13:41:37,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-13 13:41:37,182 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:41:37,182 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:41:37,190 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-13 13:41:37,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/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 13:41:37,383 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:41:37,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:41:37,384 INFO L85 PathProgramCache]: Analyzing trace with hash 2134379356, now seen corresponding path program 1 times [2024-11-13 13:41:37,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:41:37,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [498661339] [2024-11-13 13:41:37,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:41:37,385 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 13:41:37,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:41:37,388 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/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 13:41:37,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/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 13:41:37,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:41:37,652 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 13:41:37,663 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:42:14,006 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-13 13:42:14,006 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:42:14,006 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:42:14,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [498661339] [2024-11-13 13:42:14,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [498661339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:42:14,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:42:14,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-13 13:42:14,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080605424] [2024-11-13 13:42:14,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:42:14,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 13:42:14,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:42:14,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 13:42:14,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-13 13:42:14,009 INFO L87 Difference]: Start difference. First operand 90 states and 132 transitions. Second operand has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:42:48,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:42:48,832 INFO L93 Difference]: Finished difference Result 117 states and 160 transitions. [2024-11-13 13:42:48,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 13:42:48,844 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 92 [2024-11-13 13:42:48,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:42:48,846 INFO L225 Difference]: With dead ends: 117 [2024-11-13 13:42:48,846 INFO L226 Difference]: Without dead ends: 115 [2024-11-13 13:42:48,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 29.0s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2024-11-13 13:42:48,848 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 130 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.5s IncrementalHoareTripleChecker+Time [2024-11-13 13:42:48,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 232 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 24.5s Time] [2024-11-13 13:42:48,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-13 13:42:48,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 95. [2024-11-13 13:42:48,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 63 states have (on average 1.2857142857142858) internal successors, (81), 63 states have internal predecessors, (81), 28 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-13 13:42:48,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 137 transitions. [2024-11-13 13:42:48,866 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 137 transitions. Word has length 92 [2024-11-13 13:42:48,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:42:48,867 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 137 transitions. [2024-11-13 13:42:48,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:42:48,867 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 137 transitions. [2024-11-13 13:42:48,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-13 13:42:48,868 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:42:48,869 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:42:48,877 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/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)] Ended with exit code 0 [2024-11-13 13:42:49,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/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 13:42:49,070 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:42:49,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:42:49,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1183129479, now seen corresponding path program 1 times [2024-11-13 13:42:49,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:42:49,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [783361771] [2024-11-13 13:42:49,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:42:49,071 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 13:42:49,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:42:49,077 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/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 13:42:49,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-13 13:42:49,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:42:49,271 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 13:42:49,275 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:43:14,972 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-13 13:43:14,973 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:43:14,973 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:43:14,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [783361771] [2024-11-13 13:43:14,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [783361771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:43:14,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:43:14,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 13:43:14,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887193817] [2024-11-13 13:43:14,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:43:14,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 13:43:14,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:43:14,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 13:43:14,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-13 13:43:14,974 INFO L87 Difference]: Start difference. First operand 95 states and 137 transitions. Second operand has 10 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:44:20,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:44:20,073 INFO L93 Difference]: Finished difference Result 260 states and 364 transitions. [2024-11-13 13:44:20,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 13:44:20,086 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 92 [2024-11-13 13:44:20,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:44:20,088 INFO L225 Difference]: With dead ends: 260 [2024-11-13 13:44:20,089 INFO L226 Difference]: Without dead ends: 258 [2024-11-13 13:44:20,089 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 27.3s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2024-11-13 13:44:20,090 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 113 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.5s IncrementalHoareTripleChecker+Time [2024-11-13 13:44:20,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 342 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 54.5s Time] [2024-11-13 13:44:20,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2024-11-13 13:44:20,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 196. [2024-11-13 13:44:20,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 133 states have (on average 1.3157894736842106) internal successors, (175), 133 states have internal predecessors, (175), 56 states have call successors, (56), 6 states have call predecessors, (56), 6 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-13 13:44:20,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 287 transitions. [2024-11-13 13:44:20,130 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 287 transitions. Word has length 92 [2024-11-13 13:44:20,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:44:20,131 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 287 transitions. [2024-11-13 13:44:20,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:44:20,131 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 287 transitions. [2024-11-13 13:44:20,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-13 13:44:20,136 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:44:20,136 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:44:20,144 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-13 13:44:20,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/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 13:44:20,337 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:44:20,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:44:20,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1992476105, now seen corresponding path program 1 times [2024-11-13 13:44:20,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:44:20,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1983841383] [2024-11-13 13:44:20,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:44:20,338 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 13:44:20,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:44:20,342 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/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 13:44:20,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/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 (6)] Waiting until timeout for monitored process [2024-11-13 13:44:20,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:44:20,584 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 13:44:20,587 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:44:21,600 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 165 proven. 27 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-13 13:44:21,600 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:44:24,248 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:44:24,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1983841383] [2024-11-13 13:44:24,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1983841383] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:44:24,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [87758111] [2024-11-13 13:44:24,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:44:24,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:44:24,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:44:24,253 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:44:24,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 13:44:24,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:44:24,443 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 13:44:24,450 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:44:34,617 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 9 proven. 30 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-13 13:44:34,618 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:46:22,241 WARN L286 SmtUtils]: Spent 7.00s on a formula simplification. DAG size of input: 52 DAG size of output: 46 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 13:47:22,161 WARN L286 SmtUtils]: Spent 6.73s on a formula simplification that was a NOOP. DAG size: 39 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 13:47:56,802 WARN L286 SmtUtils]: Spent 5.82s on a formula simplification that was a NOOP. DAG size: 41 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 13:48:12,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [87758111] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:48:12,396 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 13:48:12,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2024-11-13 13:48:12,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629441878] [2024-11-13 13:48:12,396 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 13:48:12,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 13:48:12,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:48:12,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 13:48:12,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=484, Unknown=1, NotChecked=0, Total=600 [2024-11-13 13:48:12,401 INFO L87 Difference]: Start difference. First operand 196 states and 287 transitions. Second operand has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 13 states have internal predecessors, (52), 3 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2024-11-13 13:49:01,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:49:01,774 INFO L93 Difference]: Finished difference Result 457 states and 651 transitions. [2024-11-13 13:49:01,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-13 13:49:01,787 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 13 states have internal predecessors, (52), 3 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 92 [2024-11-13 13:49:01,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:49:01,790 INFO L225 Difference]: With dead ends: 457 [2024-11-13 13:49:01,790 INFO L226 Difference]: Without dead ends: 264 [2024-11-13 13:49:01,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 155.0s TimeCoverageRelationStatistics Valid=396, Invalid=1495, Unknown=1, NotChecked=0, Total=1892 [2024-11-13 13:49:01,793 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 166 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:49:01,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 264 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-13 13:49:01,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-11-13 13:49:01,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 196. [2024-11-13 13:49:01,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 132 states have (on average 1.2878787878787878) internal successors, (170), 132 states have internal predecessors, (170), 56 states have call successors, (56), 7 states have call predecessors, (56), 7 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-13 13:49:01,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 282 transitions. [2024-11-13 13:49:01,828 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 282 transitions. Word has length 92 [2024-11-13 13:49:01,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:49:01,829 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 282 transitions. [2024-11-13 13:49:01,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 13 states have internal predecessors, (52), 3 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2024-11-13 13:49:01,829 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 282 transitions. [2024-11-13 13:49:01,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-13 13:49:01,830 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:49:01,831 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:49:01,839 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/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 (6)] Ended with exit code 0 [2024-11-13 13:49:02,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-13 13:49:02,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/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=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:49:02,231 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:49:02,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:49:02,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1742131515, now seen corresponding path program 1 times [2024-11-13 13:49:02,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:49:02,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [645393502] [2024-11-13 13:49:02,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:49:02,233 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 13:49:02,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:49:02,235 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/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 13:49:02,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/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 (8)] Waiting until timeout for monitored process [2024-11-13 13:49:02,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:49:02,460 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 13:49:02,464 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:49:49,969 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-13 13:49:49,969 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:49:49,970 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:49:49,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [645393502] [2024-11-13 13:49:49,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [645393502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:49:49,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:49:49,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-13 13:49:49,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340433830] [2024-11-13 13:49:49,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:49:49,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 13:49:49,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:49:49,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 13:49:49,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-11-13 13:49:49,972 INFO L87 Difference]: Start difference. First operand 196 states and 282 transitions. Second operand has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:50:33,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 13:50:57,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 13:51:01,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:51:01,240 INFO L93 Difference]: Finished difference Result 263 states and 358 transitions. [2024-11-13 13:51:01,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-13 13:51:01,255 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 93 [2024-11-13 13:51:01,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:51:01,257 INFO L225 Difference]: With dead ends: 263 [2024-11-13 13:51:01,257 INFO L226 Difference]: Without dead ends: 261 [2024-11-13 13:51:01,258 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 43.7s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2024-11-13 13:51:01,259 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 112 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.9s IncrementalHoareTripleChecker+Time [2024-11-13 13:51:01,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 336 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 52.9s Time] [2024-11-13 13:51:01,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-11-13 13:51:01,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 196. [2024-11-13 13:51:01,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 131 states have (on average 1.2748091603053435) internal successors, (167), 131 states have internal predecessors, (167), 56 states have call successors, (56), 8 states have call predecessors, (56), 8 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-13 13:51:01,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 279 transitions. [2024-11-13 13:51:01,307 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 279 transitions. Word has length 93 [2024-11-13 13:51:01,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:51:01,308 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 279 transitions. [2024-11-13 13:51:01,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-13 13:51:01,308 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 279 transitions. [2024-11-13 13:51:01,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-13 13:51:01,314 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:51:01,314 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:51:01,325 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/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 (8)] Ended with exit code 0 [2024-11-13 13:51:01,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/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 13:51:01,515 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:51:01,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:51:01,516 INFO L85 PathProgramCache]: Analyzing trace with hash -97752713, now seen corresponding path program 1 times [2024-11-13 13:51:01,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:51:01,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [828224250] [2024-11-13 13:51:01,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:51:01,516 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 13:51:01,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:51:01,518 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/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 13:51:01,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/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 (9)] Waiting until timeout for monitored process [2024-11-13 13:51:01,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:51:01,820 INFO L255 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 13:51:01,823 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:51:02,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1543 backedges. 811 proven. 0 refuted. 0 times theorem prover too weak. 732 trivial. 0 not checked. [2024-11-13 13:51:02,449 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:51:02,449 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:51:02,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [828224250] [2024-11-13 13:51:02,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [828224250] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:51:02,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:51:02,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:51:02,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355558548] [2024-11-13 13:51:02,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:51:02,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:51:02,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:51:02,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:51:02,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:51:02,451 INFO L87 Difference]: Start difference. First operand 196 states and 279 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-13 13:51:04,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:51:04,570 INFO L93 Difference]: Finished difference Result 237 states and 334 transitions. [2024-11-13 13:51:04,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:51:04,579 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 181 [2024-11-13 13:51:04,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:51:04,580 INFO L225 Difference]: With dead ends: 237 [2024-11-13 13:51:04,580 INFO L226 Difference]: Without dead ends: 0 [2024-11-13 13:51:04,581 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-13 13:51:04,582 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 82 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:51:04,582 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 189 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-13 13:51:04,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-13 13:51:04,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-13 13:51:04,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:51:04,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-13 13:51:04,586 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 181 [2024-11-13 13:51:04,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:51:04,586 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 13:51:04,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-13 13:51:04,587 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-13 13:51:04,587 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 13:51:04,594 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 13:51:04,609 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/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 (9)] Ended with exit code 0 [2024-11-13 13:51:04,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/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 13:51:04,797 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:51:04,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-13 13:51:14,345 WARN L286 SmtUtils]: Spent 5.38s on a formula simplification. DAG size of input: 50 DAG size of output: 31 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-13 13:51:18,675 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 13:51:18,686 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-13 13:51:18,687 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-13 13:51:18,687 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-13 13:51:18,687 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-13 13:51:18,687 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-13 13:51:18,687 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-13 13:51:18,698 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-13 13:51:18,698 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-13 13:51:18,698 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-13 13:51:18,698 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-13 13:51:18,698 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-13 13:51:18,698 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-13 13:51:18,698 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-13 13:51:18,698 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-13 13:51:18,699 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-13 13:51:18,699 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-13 13:51:18,700 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-13 13:51:18,700 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-13 13:51:18,700 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-13 13:51:18,700 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-13 13:51:18,700 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-13 13:51:18,700 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-13 13:51:18,704 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:51:18 BoogieIcfgContainer [2024-11-13 13:51:18,704 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 13:51:18,705 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 13:51:18,705 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 13:51:18,705 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 13:51:18,708 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:40:38" (3/4) ... [2024-11-13 13:51:18,710 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 13:51:18,717 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-13 13:51:18,722 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-13 13:51:18,724 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-13 13:51:18,725 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 13:51:18,725 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 13:51:18,811 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 13:51:18,811 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/witness.yml [2024-11-13 13:51:18,811 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 13:51:18,812 INFO L158 Benchmark]: Toolchain (without parser) took 642317.30ms. Allocated memory was 117.4MB in the beginning and 645.9MB in the end (delta: 528.5MB). Free memory was 92.5MB in the beginning and 371.8MB in the end (delta: -279.2MB). Peak memory consumption was 243.1MB. Max. memory is 16.1GB. [2024-11-13 13:51:18,812 INFO L158 Benchmark]: CDTParser took 2.93ms. Allocated memory is still 117.4MB. Free memory is still 84.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:51:18,813 INFO L158 Benchmark]: CACSL2BoogieTranslator took 379.29ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 79.5MB in the end (delta: 13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:51:18,813 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.71ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 78.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:51:18,813 INFO L158 Benchmark]: Boogie Preprocessor took 46.22ms. Allocated memory is still 117.4MB. Free memory was 77.8MB in the beginning and 75.8MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:51:18,814 INFO L158 Benchmark]: RCFGBuilder took 1456.48ms. Allocated memory is still 117.4MB. Free memory was 75.8MB in the beginning and 61.2MB in the end (delta: 14.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:51:18,814 INFO L158 Benchmark]: TraceAbstraction took 640283.00ms. Allocated memory was 117.4MB in the beginning and 645.9MB in the end (delta: 528.5MB). Free memory was 60.6MB in the beginning and 375.9MB in the end (delta: -315.3MB). Peak memory consumption was 352.7MB. Max. memory is 16.1GB. [2024-11-13 13:51:18,814 INFO L158 Benchmark]: Witness Printer took 106.32ms. Allocated memory is still 645.9MB. Free memory was 375.9MB in the beginning and 371.8MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:51:18,816 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.93ms. Allocated memory is still 117.4MB. Free memory is still 84.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 379.29ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 79.5MB in the end (delta: 13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.71ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 78.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 46.22ms. Allocated memory is still 117.4MB. Free memory was 77.8MB in the beginning and 75.8MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1456.48ms. Allocated memory is still 117.4MB. Free memory was 75.8MB in the beginning and 61.2MB in the end (delta: 14.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 640283.00ms. Allocated memory was 117.4MB in the beginning and 645.9MB in the end (delta: 528.5MB). Free memory was 60.6MB in the beginning and 375.9MB in the end (delta: -315.3MB). Peak memory consumption was 352.7MB. Max. memory is 16.1GB. * Witness Printer took 106.32ms. Allocated memory is still 645.9MB. Free memory was 375.9MB in the beginning and 371.8MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven * 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 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 626.3s, OverallIterations: 7, TraceHistogramMax: 28, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 260.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 680 SdHoareTripleChecker+Valid, 170.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 680 mSDsluCounter, 1719 SdHoareTripleChecker+Invalid, 166.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1348 mSDsCounter, 389 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1578 IncrementalHoareTripleChecker+Invalid, 1967 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 389 mSolverCounterUnsat, 371 mSDtfsCounter, 1578 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 936 GetRequests, 825 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 272.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=196occurred in iteration=4, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 236 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 361.5s InterpolantComputationTime, 824 NumberOfCodeBlocks, 824 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 816 ConstructedInterpolants, 0 QuantifiedInterpolants, 4213 SizeOfPredicates, 58 NumberOfNonLiveVariables, 1348 ConjunctsInSsa, 81 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 4034/4091 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: (((var_1_9 == 25) && (25 == last_1_var_1_9)) && (var_1_8 != 0)) - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Requires: (((var_1_9 == 25) && (25 == last_1_var_1_9)) || (((var_1_9 == 25) && (25 == last_1_var_1_9)) && (var_1_8 != 0))) Ensures: (((((var_1_9 == 25) && (25 == last_1_var_1_9)) || (((var_1_9 == 25) && (25 == last_1_var_1_9)) && (var_1_8 != 0))) && (0 != cond)) && ((((((((((((((isInitial == \old(isInitial)) && (var_1_1 == \old(var_1_1))) && (var_1_2 == \old(var_1_2))) && (var_1_3 == \old(var_1_3))) && (var_1_8 == \old(var_1_8))) && (var_1_9 == \old(var_1_9))) && (var_1_10 == \old(var_1_10))) && (var_1_11 == \old(var_1_11))) && (var_1_12 == \old(var_1_12))) && (var_1_13 == \old(var_1_13))) && (var_1_14 == \old(var_1_14))) && (var_1_15 == \old(var_1_15))) && (last_1_var_1_9 == \old(last_1_var_1_9))) && (last_1_var_1_10 == \old(last_1_var_1_10)))) RESULT: Ultimate proved your program to be correct! [2024-11-13 13:51:19,026 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2024-11-13 13:51:19,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d67de596-71ab-4e12-b204-8067503c53b7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE