./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-61.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-61.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB --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 317e245cce74eed7803564fb6a0f2b3d37b179d0249fa4ec085167b7c54282b4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:36:47,275 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:36:47,341 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:36:47,347 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:36:47,347 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:36:47,372 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:36:47,373 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:36:47,373 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:36:47,373 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:36:47,374 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:36:47,374 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:36:47,374 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:36:47,374 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:36:47,375 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:36:47,375 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:36:47,375 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:36:47,375 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:36:47,375 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:36:47,375 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:36:47,376 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:36:47,376 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:36:47,376 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:36:47,376 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:36:47,376 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:36:47,376 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:36:47,376 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:36:47,376 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:36:47,377 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:36:47,377 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:36:47,377 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:36:47,377 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:36:47,377 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:36:47,377 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:36:47,377 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:36:47,377 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:36:47,378 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:36:47,378 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:36:47,378 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:36:47,378 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:36:47,378 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:36:47,378 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:36:47,378 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:36:47,379 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:36:47,379 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:36:47,379 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:36:47,379 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:36:47,379 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:36:47,379 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:36:47,379 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_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 317e245cce74eed7803564fb6a0f2b3d37b179d0249fa4ec085167b7c54282b4 [2024-11-28 04:36:47,697 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:36:47,711 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:36:47,714 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:36:47,717 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:36:47,717 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:36:47,719 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-61.i [2024-11-28 04:36:50,796 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/data/d872ea1ea/d748f6bb5ab04a70b65d491737f2b4c7/FLAG1f9f08d23 [2024-11-28 04:36:51,061 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:36:51,062 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-61.i [2024-11-28 04:36:51,070 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/data/d872ea1ea/d748f6bb5ab04a70b65d491737f2b4c7/FLAG1f9f08d23 [2024-11-28 04:36:51,384 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/data/d872ea1ea/d748f6bb5ab04a70b65d491737f2b4c7 [2024-11-28 04:36:51,386 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:36:51,391 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:36:51,393 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:36:51,393 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:36:51,402 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:36:51,403 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:36:51" (1/1) ... [2024-11-28 04:36:51,404 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1de8dfeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:51, skipping insertion in model container [2024-11-28 04:36:51,407 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:36:51" (1/1) ... [2024-11-28 04:36:51,431 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:36:51,624 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_684f35df-cda8-4b43-a27e-20b3eef67c91/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-61.i[915,928] [2024-11-28 04:36:51,692 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:36:51,705 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:36:51,719 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_684f35df-cda8-4b43-a27e-20b3eef67c91/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-61.i[915,928] [2024-11-28 04:36:51,743 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:36:51,762 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:36:51,762 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:51 WrapperNode [2024-11-28 04:36:51,763 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:36:51,764 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:36:51,764 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:36:51,764 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:36:51,773 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:51" (1/1) ... [2024-11-28 04:36:51,782 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:51" (1/1) ... [2024-11-28 04:36:51,834 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 118 [2024-11-28 04:36:51,835 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:36:51,835 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:36:51,835 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:36:51,835 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:36:51,846 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:51" (1/1) ... [2024-11-28 04:36:51,846 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:51" (1/1) ... [2024-11-28 04:36:51,849 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:51" (1/1) ... [2024-11-28 04:36:51,877 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]. [2024-11-28 04:36:51,878 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:51" (1/1) ... [2024-11-28 04:36:51,878 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:51" (1/1) ... [2024-11-28 04:36:51,895 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:51" (1/1) ... [2024-11-28 04:36:51,896 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:51" (1/1) ... [2024-11-28 04:36:51,909 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:51" (1/1) ... [2024-11-28 04:36:51,911 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:51" (1/1) ... [2024-11-28 04:36:51,916 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:51" (1/1) ... [2024-11-28 04:36:51,920 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:36:51,923 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:36:51,924 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:36:51,924 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:36:51,925 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:51" (1/1) ... [2024-11-28 04:36:51,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:36:51,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:36:51,976 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:36:51,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:36:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:36:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:36:52,012 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:36:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:36:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:36:52,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:36:52,091 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:36:52,094 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:36:52,487 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-28 04:36:52,487 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:36:52,501 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:36:52,501 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 04:36:52,501 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:36:52 BoogieIcfgContainer [2024-11-28 04:36:52,502 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:36:52,505 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:36:52,505 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:36:52,511 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:36:52,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:36:51" (1/3) ... [2024-11-28 04:36:52,512 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cfabf9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:36:52, skipping insertion in model container [2024-11-28 04:36:52,512 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:51" (2/3) ... [2024-11-28 04:36:52,512 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cfabf9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:36:52, skipping insertion in model container [2024-11-28 04:36:52,513 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:36:52" (3/3) ... [2024-11-28 04:36:52,514 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-61.i [2024-11-28 04:36:52,534 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:36:52,536 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-61.i that has 2 procedures, 55 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 04:36:52,604 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:36:52,618 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;@53425cf2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:36:52,618 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:36:52,622 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 40 states have (on average 1.375) internal successors, (55), 41 states have internal predecessors, (55), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 04:36:52,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-28 04:36:52,631 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:52,632 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:52,632 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:36:52,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:52,638 INFO L85 PathProgramCache]: Analyzing trace with hash 238332813, now seen corresponding path program 1 times [2024-11-28 04:36:52,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:36:52,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694347546] [2024-11-28 04:36:52,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:52,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:36:52,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:53,637 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 18 proven. 15 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-28 04:36:53,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:36:53,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694347546] [2024-11-28 04:36:53,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694347546] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:36:53,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273502209] [2024-11-28 04:36:53,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:53,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:36:53,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:36:53,647 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:36:53,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:36:53,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:53,841 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:36:53,853 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:36:54,042 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 143 proven. 15 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-28 04:36:54,042 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:36:54,328 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 18 proven. 15 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-28 04:36:54,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273502209] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:36:54,329 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:36:54,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2024-11-28 04:36:54,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507800820] [2024-11-28 04:36:54,332 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:36:54,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:36:54,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:36:54,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:36:54,396 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:36:54,400 INFO L87 Difference]: Start difference. First operand has 55 states, 40 states have (on average 1.375) internal successors, (55), 41 states have internal predecessors, (55), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 04:36:54,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:54,730 INFO L93 Difference]: Finished difference Result 132 states and 207 transitions. [2024-11-28 04:36:54,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:36:54,733 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 84 [2024-11-28 04:36:54,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:54,741 INFO L225 Difference]: With dead ends: 132 [2024-11-28 04:36:54,742 INFO L226 Difference]: Without dead ends: 72 [2024-11-28 04:36:54,745 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 165 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:36:54,749 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 88 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:54,750 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 189 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:36:54,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-28 04:36:54,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 67. [2024-11-28 04:36:54,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 46 states have (on average 1.2173913043478262) internal successors, (56), 47 states have internal predecessors, (56), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:36:54,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 92 transitions. [2024-11-28 04:36:54,807 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 92 transitions. Word has length 84 [2024-11-28 04:36:54,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:54,808 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 92 transitions. [2024-11-28 04:36:54,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 04:36:54,808 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 92 transitions. [2024-11-28 04:36:54,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-28 04:36:54,812 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:54,812 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:54,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 04:36:55,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 04:36:55,017 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:36:55,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:55,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1835493480, now seen corresponding path program 1 times [2024-11-28 04:36:55,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:36:55,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619879682] [2024-11-28 04:36:55,018 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:55,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:36:55,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:36:55,161 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:36:55,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:36:55,251 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 04:36:55,251 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 04:36:55,253 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 04:36:55,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:36:55,259 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-28 04:36:55,312 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:36:55,322 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:36:55 BoogieIcfgContainer [2024-11-28 04:36:55,323 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:36:55,323 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:36:55,323 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:36:55,324 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:36:55,324 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:36:52" (3/4) ... [2024-11-28 04:36:55,329 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 04:36:55,330 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:36:55,331 INFO L158 Benchmark]: Toolchain (without parser) took 3940.73ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 54.0MB in the end (delta: 38.4MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. [2024-11-28 04:36:55,331 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory is still 71.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:36:55,332 INFO L158 Benchmark]: CACSL2BoogieTranslator took 370.58ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 79.6MB in the end (delta: 12.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:36:55,332 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.78ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 76.9MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:36:55,333 INFO L158 Benchmark]: Boogie Preprocessor took 85.46ms. Allocated memory is still 117.4MB. Free memory was 76.9MB in the beginning and 73.5MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:36:55,333 INFO L158 Benchmark]: RCFGBuilder took 578.59ms. Allocated memory is still 117.4MB. Free memory was 73.5MB in the beginning and 55.8MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:36:55,333 INFO L158 Benchmark]: TraceAbstraction took 2818.09ms. Allocated memory is still 117.4MB. Free memory was 55.3MB in the beginning and 54.1MB in the end (delta: 1.2MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2024-11-28 04:36:55,334 INFO L158 Benchmark]: Witness Printer took 6.86ms. Allocated memory is still 117.4MB. Free memory was 54.1MB in the beginning and 54.0MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:36:55,338 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory is still 71.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 370.58ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 79.6MB in the end (delta: 12.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.78ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 76.9MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 85.46ms. Allocated memory is still 117.4MB. Free memory was 76.9MB in the beginning and 73.5MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 578.59ms. Allocated memory is still 117.4MB. Free memory was 73.5MB in the beginning and 55.8MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2818.09ms. Allocated memory is still 117.4MB. Free memory was 55.3MB in the beginning and 54.1MB in the end (delta: 1.2MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * Witness Printer took 6.86ms. Allocated memory is still 117.4MB. Free memory was 54.1MB in the beginning and 54.0MB 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 someBinaryFLOATComparisonOperation at line 45, overapproximation of someBinaryFLOATComparisonOperation at line 62, overapproximation of someBinaryFLOATComparisonOperation at line 35, overapproximation of someBinaryFLOATComparisonOperation at line 64, overapproximation of someBinaryFLOATComparisonOperation at line 54, overapproximation of someBinaryFLOATComparisonOperation at line 84. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 0; [L23] float var_1_2 = 128.6; [L24] float var_1_3 = 49.4; [L25] unsigned char var_1_4 = 0; [L26] unsigned char var_1_5 = 0; [L27] unsigned char var_1_6 = 0; [L28] unsigned char var_1_7 = 8; [L29] unsigned char var_1_8 = 128; [L30] unsigned char var_1_9 = 64; [L31] signed short int var_1_10 = 5; VAL [isInitial=0, var_1_10=5, var_1_1=0, var_1_2=643/5, var_1_3=247/5, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=8, var_1_8=128, var_1_9=64] [L88] isInitial = 1 [L89] FCALL initially() [L90] int k_loop; [L91] k_loop = 0 VAL [isInitial=1, k_loop=0, var_1_10=5, var_1_1=0, var_1_2=643/5, var_1_3=247/5, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=8, var_1_8=128, var_1_9=64] [L91] COND TRUE k_loop < 1 VAL [isInitial=1, k_loop=0, var_1_10=5, var_1_1=0, var_1_2=643/5, var_1_3=247/5, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=8, var_1_8=128, var_1_9=64] [L92] FCALL updateLastVariables() [L93] CALL updateVariables() [L61] var_1_2 = __VERIFIER_nondet_float() [L62] CALL assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_3=247/5, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=8, var_1_8=128, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_3=247/5, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=8, var_1_8=128, var_1_9=64] [L62] RET assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=5, var_1_1=0, var_1_3=247/5, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=8, var_1_8=128, var_1_9=64] [L63] var_1_3 = __VERIFIER_nondet_float() [L64] CALL assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=8, var_1_8=128, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=8, var_1_8=128, var_1_9=64] [L64] RET assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=8, var_1_8=128, var_1_9=64] [L65] var_1_4 = __VERIFIER_nondet_uchar() [L66] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_5=0, var_1_6=0, var_1_7=8, var_1_8=128, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_5=0, var_1_6=0, var_1_7=8, var_1_8=128, var_1_9=64] [L66] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=5, var_1_1=0, var_1_5=0, var_1_6=0, var_1_7=8, var_1_8=128, var_1_9=64] [L67] CALL assume_abort_if_not(var_1_4 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=8, var_1_8=128, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=8, var_1_8=128, var_1_9=64] [L67] RET assume_abort_if_not(var_1_4 <= 0) VAL [isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=8, var_1_8=128, var_1_9=64] [L68] var_1_5 = __VERIFIER_nondet_uchar() [L69] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_6=0, var_1_7=8, var_1_8=128, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_6=0, var_1_7=8, var_1_8=128, var_1_9=64] [L69] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_6=0, var_1_7=8, var_1_8=128, var_1_9=64] [L70] CALL assume_abort_if_not(var_1_5 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=8, var_1_8=128, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=8, var_1_8=128, var_1_9=64] [L70] RET assume_abort_if_not(var_1_5 <= 0) VAL [isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=8, var_1_8=128, var_1_9=64] [L71] var_1_6 = __VERIFIER_nondet_uchar() [L72] CALL assume_abort_if_not(var_1_6 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8, var_1_8=128, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8, var_1_8=128, var_1_9=64] [L72] RET assume_abort_if_not(var_1_6 >= 1) VAL [isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8, var_1_8=128, var_1_9=64] [L73] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8, var_1_8=128, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8, var_1_8=128, var_1_9=64] [L73] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8, var_1_8=128, var_1_9=64] [L74] var_1_8 = __VERIFIER_nondet_uchar() [L75] CALL assume_abort_if_not(var_1_8 >= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8, var_1_8=-2, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8, var_1_8=-2, var_1_9=64] [L75] RET assume_abort_if_not(var_1_8 >= 127) VAL [isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8, var_1_8=-2, var_1_9=64] [L76] CALL assume_abort_if_not(var_1_8 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8, var_1_8=-2, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8, var_1_8=-2, var_1_9=64] [L76] RET assume_abort_if_not(var_1_8 <= 254) VAL [isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8, var_1_8=-2, var_1_9=64] [L77] var_1_9 = __VERIFIER_nondet_uchar() [L78] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8, var_1_8=-2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8, var_1_8=-2] [L78] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8, var_1_8=-2] [L79] CALL assume_abort_if_not(var_1_9 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8, var_1_8=-2, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8, var_1_8=-2, var_1_9=1] [L79] RET assume_abort_if_not(var_1_9 <= 127) VAL [isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8, var_1_8=-2, var_1_9=1] [L93] RET updateVariables() [L94] CALL step() [L35] COND TRUE var_1_2 < var_1_3 [L36] var_1_1 = (var_1_4 || var_1_5) VAL [isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8, var_1_8=-2, var_1_9=1] [L44] COND TRUE \read(var_1_6) VAL [isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=8, var_1_8=-2, var_1_9=1] [L45] COND TRUE var_1_3 != 15.8f [L46] var_1_7 = (var_1_8 - var_1_9) VAL [isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=253, var_1_8=-2, var_1_9=1] [L53] EXPR (var_1_9 / 32) << var_1_8 VAL [isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=253, var_1_8=-2, var_1_9=1] [L53] signed long int stepLocal_0 = (var_1_9 / 32) << var_1_8; [L54] COND FALSE !(! (var_1_3 < var_1_2)) VAL [isInitial=1, stepLocal_0=0, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=253, var_1_8=-2, var_1_9=1] [L94] RET step() [L95] CALL, EXPR property() [L84] EXPR (((var_1_2 < var_1_3) ? (var_1_1 == ((unsigned char) (var_1_4 || var_1_5))) : ((var_1_3 >= var_1_2) ? (var_1_1 == ((unsigned char) var_1_5)) : (var_1_1 == ((unsigned char) var_1_6)))) && (var_1_6 ? ((var_1_3 != 15.8f) ? (var_1_7 == ((unsigned char) (var_1_8 - var_1_9))) : (var_1_7 == ((unsigned char) ((((var_1_8) > (var_1_9)) ? (var_1_8) : (var_1_9)))))) : (var_1_7 == ((unsigned char) var_1_8)))) && ((! (var_1_3 < var_1_2)) ? ((((var_1_9 / 32) << var_1_8) == var_1_7) ? (var_1_10 == ((signed short int) (var_1_7 - var_1_8))) : 1) : 1) VAL [isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=253, var_1_8=-2, var_1_9=1] [L84-L85] return (((var_1_2 < var_1_3) ? (var_1_1 == ((unsigned char) (var_1_4 || var_1_5))) : ((var_1_3 >= var_1_2) ? (var_1_1 == ((unsigned char) var_1_5)) : (var_1_1 == ((unsigned char) var_1_6)))) && (var_1_6 ? ((var_1_3 != 15.8f) ? (var_1_7 == ((unsigned char) (var_1_8 - var_1_9))) : (var_1_7 == ((unsigned char) ((((var_1_8) > (var_1_9)) ? (var_1_8) : (var_1_9)))))) : (var_1_7 == ((unsigned char) var_1_8)))) && ((! (var_1_3 < var_1_2)) ? ((((var_1_9 / 32) << var_1_8) == var_1_7) ? (var_1_10 == ((signed short int) (var_1_7 - var_1_8))) : 1) : 1) ; [L95] RET, EXPR property() [L95] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=253, var_1_8=-2, var_1_9=1] [L19] reach_error() VAL [isInitial=1, var_1_10=5, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=1, var_1_7=253, var_1_8=-2, var_1_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 2, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 94 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 88 mSDsluCounter, 189 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 111 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 115 IncrementalHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 78 mSDtfsCounter, 115 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 175 GetRequests, 165 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=1, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 253 NumberOfCodeBlocks, 253 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 249 ConstructedInterpolants, 0 QuantifiedInterpolants, 495 SizeOfPredicates, 0 NumberOfNonLiveVariables, 193 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 3 InterpolantComputations, 0 PerfectInterpolantSequences, 747/792 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-28 04:36:55,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/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_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-61.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB --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 317e245cce74eed7803564fb6a0f2b3d37b179d0249fa4ec085167b7c54282b4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:36:58,401 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:36:58,547 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-28 04:36:58,572 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:36:58,572 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:36:58,614 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:36:58,614 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:36:58,615 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:36:58,615 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:36:58,615 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:36:58,615 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:36:58,616 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:36:58,616 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:36:58,616 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:36:58,616 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:36:58,617 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:36:58,617 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:36:58,617 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:36:58,617 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:36:58,617 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:36:58,617 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:36:58,618 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:36:58,618 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:36:58,618 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 04:36:58,618 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 04:36:58,618 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 04:36:58,618 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:36:58,619 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:36:58,619 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:36:58,619 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:36:58,619 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:36:58,619 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:36:58,620 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:36:58,620 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:36:58,620 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:36:58,620 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:36:58,620 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:36:58,621 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:36:58,621 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:36:58,621 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:36:58,621 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:36:58,621 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:36:58,621 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:36:58,622 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:36:58,622 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 04:36:58,622 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 04:36:58,623 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:36:58,623 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:36:58,623 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:36:58,623 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:36:58,623 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_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 317e245cce74eed7803564fb6a0f2b3d37b179d0249fa4ec085167b7c54282b4 [2024-11-28 04:36:59,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:36:59,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:36:59,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:36:59,046 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:36:59,047 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:36:59,049 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-61.i [2024-11-28 04:37:02,325 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/data/a569ff385/343ce8868e3241f1bca16ecf1bd6c331/FLAG914656687 [2024-11-28 04:37:02,651 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:37:02,652 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-61.i [2024-11-28 04:37:02,661 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/data/a569ff385/343ce8868e3241f1bca16ecf1bd6c331/FLAG914656687 [2024-11-28 04:37:02,678 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/data/a569ff385/343ce8868e3241f1bca16ecf1bd6c331 [2024-11-28 04:37:02,681 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:37:02,683 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:37:02,685 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:37:02,685 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:37:02,691 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:37:02,692 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:37:02" (1/1) ... [2024-11-28 04:37:02,694 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3669d244 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:02, skipping insertion in model container [2024-11-28 04:37:02,694 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:37:02" (1/1) ... [2024-11-28 04:37:02,716 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:37:02,936 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_684f35df-cda8-4b43-a27e-20b3eef67c91/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-61.i[915,928] [2024-11-28 04:37:03,013 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:37:03,037 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:37:03,056 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_684f35df-cda8-4b43-a27e-20b3eef67c91/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-61.i[915,928] [2024-11-28 04:37:03,095 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:37:03,127 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:37:03,127 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:03 WrapperNode [2024-11-28 04:37:03,128 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:37:03,129 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:37:03,129 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:37:03,130 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:37:03,142 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:03" (1/1) ... [2024-11-28 04:37:03,161 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:03" (1/1) ... [2024-11-28 04:37:03,199 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 95 [2024-11-28 04:37:03,203 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:37:03,204 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:37:03,204 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:37:03,204 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:37:03,219 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:03" (1/1) ... [2024-11-28 04:37:03,221 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:03" (1/1) ... [2024-11-28 04:37:03,225 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:03" (1/1) ... [2024-11-28 04:37:03,249 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]. [2024-11-28 04:37:03,249 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:03" (1/1) ... [2024-11-28 04:37:03,249 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:03" (1/1) ... [2024-11-28 04:37:03,268 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:03" (1/1) ... [2024-11-28 04:37:03,269 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:03" (1/1) ... [2024-11-28 04:37:03,277 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:03" (1/1) ... [2024-11-28 04:37:03,279 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:03" (1/1) ... [2024-11-28 04:37:03,284 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:03" (1/1) ... [2024-11-28 04:37:03,291 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:37:03,292 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:37:03,292 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:37:03,293 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:37:03,294 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:03" (1/1) ... [2024-11-28 04:37:03,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:37:03,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:37:03,341 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:37:03,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:37:03,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:37:03,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 04:37:03,377 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:37:03,377 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:37:03,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:37:03,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:37:03,482 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:37:03,485 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:37:03,886 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-28 04:37:03,888 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:37:03,905 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:37:03,906 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 04:37:03,907 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:37:03 BoogieIcfgContainer [2024-11-28 04:37:03,908 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:37:03,911 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:37:03,911 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:37:03,922 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:37:03,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:37:02" (1/3) ... [2024-11-28 04:37:03,923 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4189ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:37:03, skipping insertion in model container [2024-11-28 04:37:03,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:37:03" (2/3) ... [2024-11-28 04:37:03,925 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4189ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:37:03, skipping insertion in model container [2024-11-28 04:37:03,926 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:37:03" (3/3) ... [2024-11-28 04:37:03,927 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-61.i [2024-11-28 04:37:03,949 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:37:03,951 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-61.i that has 2 procedures, 46 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 04:37:04,035 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:37:04,057 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;@20c052b7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:37:04,057 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:37:04,062 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 32 states have internal predecessors, (42), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 04:37:04,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-28 04:37:04,076 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:37:04,077 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:04,077 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:37:04,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:04,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1454855579, now seen corresponding path program 1 times [2024-11-28 04:37:04,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:37:04,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1918941331] [2024-11-28 04:37:04,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:04,109 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 [2024-11-28 04:37:04,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:37:04,115 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 04:37:04,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:37:04,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:04,452 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:37:04,467 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:37:04,532 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2024-11-28 04:37:04,532 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:37:04,533 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:37:04,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1918941331] [2024-11-28 04:37:04,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1918941331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:37:04,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:37:04,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:37:04,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22061909] [2024-11-28 04:37:04,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:37:04,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:37:04,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:37:04,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:37:04,576 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:37:04,579 INFO L87 Difference]: Start difference. First operand has 46 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 32 states have internal predecessors, (42), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-28 04:37:04,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:37:04,616 INFO L93 Difference]: Finished difference Result 89 states and 141 transitions. [2024-11-28 04:37:04,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:37:04,618 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 81 [2024-11-28 04:37:04,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:37:04,626 INFO L225 Difference]: With dead ends: 89 [2024-11-28 04:37:04,626 INFO L226 Difference]: Without dead ends: 42 [2024-11-28 04:37:04,631 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:37:04,634 INFO L435 NwaCegarLoop]: 63 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, 63 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 [2024-11-28 04:37:04,635 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:37:04,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-28 04:37:04,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2024-11-28 04:37:04,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.25) internal successors, (35), 28 states have internal predecessors, (35), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 04:37:04,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 59 transitions. [2024-11-28 04:37:04,683 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 59 transitions. Word has length 81 [2024-11-28 04:37:04,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:37:04,683 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 59 transitions. [2024-11-28 04:37:04,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-28 04:37:04,684 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 59 transitions. [2024-11-28 04:37:04,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-28 04:37:04,689 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:37:04,690 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:04,699 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:37:04,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:37:04,893 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:37:04,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:04,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1311906135, now seen corresponding path program 1 times [2024-11-28 04:37:04,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:37:04,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1376723431] [2024-11-28 04:37:04,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:04,895 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 [2024-11-28 04:37:04,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:37:04,897 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 04:37:04,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:37:05,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:05,125 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:37:05,130 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:37:05,341 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 143 proven. 15 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-28 04:37:05,344 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:37:05,666 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 18 proven. 15 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-28 04:37:05,668 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:37:05,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1376723431] [2024-11-28 04:37:05,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1376723431] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:37:05,668 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:37:05,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2024-11-28 04:37:05,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663291269] [2024-11-28 04:37:05,669 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:37:05,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:37:05,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:37:05,672 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:37:05,673 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:37:05,674 INFO L87 Difference]: Start difference. First operand 42 states and 59 transitions. Second operand has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 04:37:06,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:37:06,038 INFO L93 Difference]: Finished difference Result 102 states and 141 transitions. [2024-11-28 04:37:06,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:37:06,039 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 81 [2024-11-28 04:37:06,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:37:06,041 INFO L225 Difference]: With dead ends: 102 [2024-11-28 04:37:06,041 INFO L226 Difference]: Without dead ends: 63 [2024-11-28 04:37:06,042 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 154 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:37:06,043 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 30 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:37:06,043 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 142 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:37:06,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-28 04:37:06,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 58. [2024-11-28 04:37:06,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 37 states have (on average 1.162162162162162) internal successors, (43), 38 states have internal predecessors, (43), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:37:06,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 79 transitions. [2024-11-28 04:37:06,069 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 79 transitions. Word has length 81 [2024-11-28 04:37:06,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:37:06,070 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 79 transitions. [2024-11-28 04:37:06,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 04:37:06,070 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 79 transitions. [2024-11-28 04:37:06,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-28 04:37:06,073 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:37:06,073 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:06,079 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:37:06,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:37:06,274 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:37:06,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:06,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1011386638, now seen corresponding path program 1 times [2024-11-28 04:37:06,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:37:06,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [155695733] [2024-11-28 04:37:06,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:06,275 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 [2024-11-28 04:37:06,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:37:06,279 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 04:37:06,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:37:06,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:06,505 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 04:37:06,518 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:37:07,419 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 143 proven. 15 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-28 04:37:07,422 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:41:43,651 WARN L286 SmtUtils]: Spent 9.16s on a formula simplification. DAG size of input: 530 DAG size of output: 528 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 04:42:26,108 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-28 04:42:26,108 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:42:26,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [155695733] [2024-11-28 04:42:26,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [155695733] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:42:26,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:42:26,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2024-11-28 04:42:26,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595981566] [2024-11-28 04:42:26,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:42:26,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:42:26,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:42:26,110 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:42:26,111 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:42:26,111 INFO L87 Difference]: Start difference. First operand 58 states and 79 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-28 04:42:39,426 WARN L286 SmtUtils]: Spent 7.53s on a formula simplification. DAG size of input: 532 DAG size of output: 535 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 04:42:47,324 WARN L286 SmtUtils]: Spent 7.66s on a formula simplification. DAG size of input: 535 DAG size of output: 538 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 04:42:55,242 WARN L286 SmtUtils]: Spent 7.66s on a formula simplification. DAG size of input: 535 DAG size of output: 538 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 04:42:55,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:55,458 INFO L93 Difference]: Finished difference Result 80 states and 103 transitions. [2024-11-28 04:42:55,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:42:55,460 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 82 [2024-11-28 04:42:55,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:55,464 INFO L225 Difference]: With dead ends: 80 [2024-11-28 04:42:55,464 INFO L226 Difference]: Without dead ends: 78 [2024-11-28 04:42:55,465 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 41.8s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:42:55,466 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 39 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:42:55,466 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 238 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 04:42:55,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-28 04:42:55,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 65. [2024-11-28 04:42:55,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 44 states have (on average 1.1818181818181819) internal successors, (52), 45 states have internal predecessors, (52), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:42:55,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 88 transitions. [2024-11-28 04:42:55,483 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 88 transitions. Word has length 82 [2024-11-28 04:42:55,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:55,483 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 88 transitions. [2024-11-28 04:42:55,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-28 04:42:55,484 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 88 transitions. [2024-11-28 04:42:55,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-28 04:42:55,485 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:55,485 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:42:55,491 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:42:55,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:42:55,686 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:42:55,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:55,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1523775008, now seen corresponding path program 1 times [2024-11-28 04:42:55,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:42:55,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1986940564] [2024-11-28 04:42:55,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:55,692 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 [2024-11-28 04:42:55,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:42:55,696 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 04:42:55,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684f35df-cda8-4b43-a27e-20b3eef67c91/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 04:42:55,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:55,905 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 04:42:55,913 INFO L279 TraceCheckSpWp]: Computing forward predicates...