./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-97.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_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/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_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-97.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/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_025ce41f-142b-4e78-8740-471dbbd95627/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 97ff03298340a9336a03e9d19ed0d00b1afc963b5be61528526d9d1b67b2a323 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:24:43,232 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:24:43,360 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:24:43,368 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:24:43,369 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:24:43,415 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:24:43,416 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:24:43,417 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:24:43,417 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:24:43,417 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:24:43,417 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:24:43,418 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:24:43,418 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:24:43,418 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:24:43,418 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:24:43,420 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:24:43,420 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:24:43,421 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:24:43,421 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:24:43,421 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:24:43,422 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:24:43,422 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:24:43,422 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:24:43,422 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:24:43,422 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:24:43,422 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:24:43,422 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:24:43,422 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:24:43,422 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:24:43,423 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:24:43,423 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:24:43,423 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:24:43,423 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:24:43,423 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:24:43,423 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:24:43,423 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:24:43,423 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:24:43,423 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:24:43,424 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:24:43,424 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:24:43,424 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:24:43,424 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:24:43,424 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:24:43,424 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:24:43,424 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:24:43,424 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:24:43,424 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:24:43,426 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:24:43,426 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_025ce41f-142b-4e78-8740-471dbbd95627/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 -> 97ff03298340a9336a03e9d19ed0d00b1afc963b5be61528526d9d1b67b2a323 [2024-11-28 03:24:43,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:24:43,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:24:43,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:24:43,790 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:24:43,791 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:24:43,793 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-97.i [2024-11-28 03:24:47,559 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/data/ffd999535/c4c8c8f3af52476c8c8fbca3cb66773b/FLAGa4dcf18c7 [2024-11-28 03:24:48,036 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:24:48,038 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-97.i [2024-11-28 03:24:48,055 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/data/ffd999535/c4c8c8f3af52476c8c8fbca3cb66773b/FLAGa4dcf18c7 [2024-11-28 03:24:48,081 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/data/ffd999535/c4c8c8f3af52476c8c8fbca3cb66773b [2024-11-28 03:24:48,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:24:48,086 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:24:48,088 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:24:48,088 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:24:48,094 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:24:48,095 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:24:48" (1/1) ... [2024-11-28 03:24:48,097 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a038a4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:24:48, skipping insertion in model container [2024-11-28 03:24:48,097 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:24:48" (1/1) ... [2024-11-28 03:24:48,120 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:24:48,318 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_025ce41f-142b-4e78-8740-471dbbd95627/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-97.i[916,929] [2024-11-28 03:24:48,381 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:24:48,395 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:24:48,409 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_025ce41f-142b-4e78-8740-471dbbd95627/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-97.i[916,929] [2024-11-28 03:24:48,439 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:24:48,463 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:24:48,463 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:24:48 WrapperNode [2024-11-28 03:24:48,464 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:24:48,465 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:24:48,465 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:24:48,465 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:24:48,475 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:24:48" (1/1) ... [2024-11-28 03:24:48,490 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:24:48" (1/1) ... [2024-11-28 03:24:48,550 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 144 [2024-11-28 03:24:48,550 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:24:48,551 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:24:48,551 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:24:48,551 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:24:48,572 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:24:48" (1/1) ... [2024-11-28 03:24:48,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:24:48" (1/1) ... [2024-11-28 03:24:48,577 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:24:48" (1/1) ... [2024-11-28 03:24:48,609 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 03:24:48,609 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:24:48" (1/1) ... [2024-11-28 03:24:48,610 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:24:48" (1/1) ... [2024-11-28 03:24:48,621 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:24:48" (1/1) ... [2024-11-28 03:24:48,624 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:24:48" (1/1) ... [2024-11-28 03:24:48,629 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:24:48" (1/1) ... [2024-11-28 03:24:48,631 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:24:48" (1/1) ... [2024-11-28 03:24:48,633 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:24:48" (1/1) ... [2024-11-28 03:24:48,635 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:24:48,637 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:24:48,637 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:24:48,637 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:24:48,638 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:24:48" (1/1) ... [2024-11-28 03:24:48,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:24:48,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:24:48,685 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:24:48,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:24:48,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:24:48,714 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:24:48,714 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:24:48,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:24:48,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:24:48,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:24:48,815 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:24:48,818 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:24:49,229 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-28 03:24:49,230 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:24:49,242 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:24:49,243 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:24:49,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:24:49 BoogieIcfgContainer [2024-11-28 03:24:49,243 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:24:49,246 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:24:49,246 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:24:49,257 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:24:49,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:24:48" (1/3) ... [2024-11-28 03:24:49,260 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b5978a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:24:49, skipping insertion in model container [2024-11-28 03:24:49,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:24:48" (2/3) ... [2024-11-28 03:24:49,262 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b5978a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:24:49, skipping insertion in model container [2024-11-28 03:24:49,263 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:24:49" (3/3) ... [2024-11-28 03:24:49,265 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-97.i [2024-11-28 03:24:49,287 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:24:49,289 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_no-floats_file-97.i that has 2 procedures, 64 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:24:49,363 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:24:49,380 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3b9dd766, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:24:49,381 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:24:49,386 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 44 states have internal predecessors, (61), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 03:24:49,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-28 03:24:49,401 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:24:49,402 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:24:49,402 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:24:49,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:24:49,412 INFO L85 PathProgramCache]: Analyzing trace with hash 273559296, now seen corresponding path program 1 times [2024-11-28 03:24:49,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:24:49,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818295602] [2024-11-28 03:24:49,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:24:49,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:24:49,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:24:49,865 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-11-28 03:24:49,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:24:49,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818295602] [2024-11-28 03:24:49,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818295602] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:24:49,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958167837] [2024-11-28 03:24:49,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:24:49,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:24:49,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:24:49,879 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:24:49,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:24:50,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:24:50,112 INFO L256 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:24:50,129 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:24:50,186 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-11-28 03:24:50,186 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:24:50,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [958167837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:24:50,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:24:50,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 03:24:50,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599821614] [2024-11-28 03:24:50,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:24:50,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:24:50,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:24:50,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:24:50,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:24:50,234 INFO L87 Difference]: Start difference. First operand has 64 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 44 states have internal predecessors, (61), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) 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, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 03:24:50,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:24:50,283 INFO L93 Difference]: Finished difference Result 121 states and 206 transitions. [2024-11-28 03:24:50,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:24:50,287 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, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 113 [2024-11-28 03:24:50,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:24:50,300 INFO L225 Difference]: With dead ends: 121 [2024-11-28 03:24:50,301 INFO L226 Difference]: Without dead ends: 60 [2024-11-28 03:24:50,307 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 114 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 03:24:50,312 INFO L435 NwaCegarLoop]: 90 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, 90 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 03:24:50,313 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:24:50,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-11-28 03:24:50,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-11-28 03:24:50,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 40 states have (on average 1.35) internal successors, (54), 40 states have internal predecessors, (54), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 03:24:50,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 90 transitions. [2024-11-28 03:24:50,449 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 90 transitions. Word has length 113 [2024-11-28 03:24:50,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:24:50,453 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 90 transitions. [2024-11-28 03:24:50,453 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, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 03:24:50,453 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 90 transitions. [2024-11-28 03:24:50,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-28 03:24:50,460 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:24:50,460 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:24:50,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:24:50,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 03:24:50,661 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:24:50,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:24:50,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1565859904, now seen corresponding path program 1 times [2024-11-28 03:24:50,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:24:50,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802631438] [2024-11-28 03:24:50,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:24:50,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:24:50,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:24:52,985 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:24:52,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:24:52,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802631438] [2024-11-28 03:24:52,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802631438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:24:52,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:24:52,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:24:52,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588838611] [2024-11-28 03:24:52,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:24:52,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:24:52,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:24:52,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:24:52,990 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:24:52,990 INFO L87 Difference]: Start difference. First operand 60 states and 90 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:24:53,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:24:53,401 INFO L93 Difference]: Finished difference Result 136 states and 203 transitions. [2024-11-28 03:24:53,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:24:53,402 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 113 [2024-11-28 03:24:53,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:24:53,405 INFO L225 Difference]: With dead ends: 136 [2024-11-28 03:24:53,405 INFO L226 Difference]: Without dead ends: 79 [2024-11-28 03:24:53,406 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:24:53,407 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 20 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:24:53,410 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 221 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:24:53,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-28 03:24:53,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 62. [2024-11-28 03:24:53,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 42 states have (on average 1.3333333333333333) internal successors, (56), 42 states have internal predecessors, (56), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 03:24:53,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 92 transitions. [2024-11-28 03:24:53,433 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 92 transitions. Word has length 113 [2024-11-28 03:24:53,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:24:53,436 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 92 transitions. [2024-11-28 03:24:53,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:24:53,436 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 92 transitions. [2024-11-28 03:24:53,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-28 03:24:53,439 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:24:53,439 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:24:53,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:24:53,440 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:24:53,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:24:53,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1869013579, now seen corresponding path program 1 times [2024-11-28 03:24:53,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:24:53,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407213051] [2024-11-28 03:24:53,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:24:53,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:24:53,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:24:55,064 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:24:55,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:24:55,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407213051] [2024-11-28 03:24:55,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407213051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:24:55,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:24:55,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:24:55,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248414253] [2024-11-28 03:24:55,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:24:55,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:24:55,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:24:55,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:24:55,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:24:55,095 INFO L87 Difference]: Start difference. First operand 62 states and 92 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:24:56,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:24:56,233 INFO L93 Difference]: Finished difference Result 226 states and 336 transitions. [2024-11-28 03:24:56,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:24:56,234 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 115 [2024-11-28 03:24:56,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:24:56,241 INFO L225 Difference]: With dead ends: 226 [2024-11-28 03:24:56,241 INFO L226 Difference]: Without dead ends: 167 [2024-11-28 03:24:56,242 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:24:56,247 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 167 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:24:56,247 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 396 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:24:56,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-11-28 03:24:56,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 67. [2024-11-28 03:24:56,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 47 states have (on average 1.3404255319148937) internal successors, (63), 47 states have internal predecessors, (63), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 03:24:56,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 99 transitions. [2024-11-28 03:24:56,265 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 99 transitions. Word has length 115 [2024-11-28 03:24:56,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:24:56,266 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 99 transitions. [2024-11-28 03:24:56,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:24:56,267 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 99 transitions. [2024-11-28 03:24:56,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-28 03:24:56,269 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:24:56,269 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:24:56,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:24:56,270 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:24:56,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:24:56,271 INFO L85 PathProgramCache]: Analyzing trace with hash -2100365159, now seen corresponding path program 1 times [2024-11-28 03:24:56,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:24:56,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78795979] [2024-11-28 03:24:56,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:24:56,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:24:56,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:24:57,179 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 63 proven. 33 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2024-11-28 03:24:57,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:24:57,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78795979] [2024-11-28 03:24:57,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78795979] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:24:57,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351268685] [2024-11-28 03:24:57,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:24:57,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:24:57,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:24:57,184 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:24:57,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:24:57,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:24:57,325 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 03:24:57,330 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:24:57,787 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 348 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-28 03:24:57,788 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:24:58,376 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 63 proven. 36 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2024-11-28 03:24:58,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351268685] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:24:58,376 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:24:58,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 15 [2024-11-28 03:24:58,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513343411] [2024-11-28 03:24:58,377 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:24:58,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 03:24:58,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:24:58,382 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 03:24:58,382 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:24:58,383 INFO L87 Difference]: Start difference. First operand 67 states and 99 transitions. Second operand has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 states have internal predecessors, (52), 3 states have call successors, (25), 3 states have call predecessors, (25), 7 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-28 03:24:59,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:24:59,245 INFO L93 Difference]: Finished difference Result 163 states and 237 transitions. [2024-11-28 03:24:59,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:24:59,246 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 states have internal predecessors, (52), 3 states have call successors, (25), 3 states have call predecessors, (25), 7 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 115 [2024-11-28 03:24:59,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:24:59,248 INFO L225 Difference]: With dead ends: 163 [2024-11-28 03:24:59,249 INFO L226 Difference]: Without dead ends: 99 [2024-11-28 03:24:59,250 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 224 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=205, Invalid=445, Unknown=0, NotChecked=0, Total=650 [2024-11-28 03:24:59,251 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 140 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:24:59,251 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 231 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:24:59,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-28 03:24:59,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 84. [2024-11-28 03:24:59,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 52 states have (on average 1.1923076923076923) internal successors, (62), 53 states have internal predecessors, (62), 28 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-28 03:24:59,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 118 transitions. [2024-11-28 03:24:59,273 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 118 transitions. Word has length 115 [2024-11-28 03:24:59,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:24:59,273 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 118 transitions. [2024-11-28 03:24:59,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 states have internal predecessors, (52), 3 states have call successors, (25), 3 states have call predecessors, (25), 7 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-28 03:24:59,274 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 118 transitions. [2024-11-28 03:24:59,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-28 03:24:59,276 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:24:59,276 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:24:59,289 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 03:24:59,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:24:59,480 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:24:59,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:24:59,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1316545057, now seen corresponding path program 1 times [2024-11-28 03:24:59,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:24:59,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544627543] [2024-11-28 03:24:59,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:24:59,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:24:59,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:25:02,091 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 63 proven. 33 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2024-11-28 03:25:02,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:25:02,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544627543] [2024-11-28 03:25:02,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544627543] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:25:02,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621053066] [2024-11-28 03:25:02,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:25:02,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:25:02,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:25:02,095 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:25:02,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:25:02,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:25:02,288 INFO L256 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-28 03:25:02,294 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:25:04,596 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 408 proven. 72 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-11-28 03:25:04,596 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:25:08,699 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 102 proven. 42 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2024-11-28 03:25:08,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [621053066] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:25:08,700 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:25:08,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 21, 19] total 45 [2024-11-28 03:25:08,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890728503] [2024-11-28 03:25:08,701 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:25:08,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-11-28 03:25:08,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:25:08,704 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-11-28 03:25:08,708 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=435, Invalid=1545, Unknown=0, NotChecked=0, Total=1980 [2024-11-28 03:25:08,709 INFO L87 Difference]: Start difference. First operand 84 states and 118 transitions. Second operand has 45 states, 45 states have (on average 2.111111111111111) internal successors, (95), 45 states have internal predecessors, (95), 10 states have call successors, (41), 5 states have call predecessors, (41), 12 states have return successors, (43), 10 states have call predecessors, (43), 10 states have call successors, (43) [2024-11-28 03:25:12,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:25:12,678 INFO L93 Difference]: Finished difference Result 162 states and 205 transitions. [2024-11-28 03:25:12,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-28 03:25:12,679 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 2.111111111111111) internal successors, (95), 45 states have internal predecessors, (95), 10 states have call successors, (41), 5 states have call predecessors, (41), 12 states have return successors, (43), 10 states have call predecessors, (43), 10 states have call successors, (43) Word has length 116 [2024-11-28 03:25:12,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:25:12,682 INFO L225 Difference]: With dead ends: 162 [2024-11-28 03:25:12,682 INFO L226 Difference]: Without dead ends: 160 [2024-11-28 03:25:12,688 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1434 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1121, Invalid=3709, Unknown=0, NotChecked=0, Total=4830 [2024-11-28 03:25:12,690 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 468 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 1535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:25:12,690 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 510 Invalid, 1535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 1345 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-28 03:25:12,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-28 03:25:12,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 147. [2024-11-28 03:25:12,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 98 states have (on average 1.153061224489796) internal successors, (113), 100 states have internal predecessors, (113), 38 states have call successors, (38), 10 states have call predecessors, (38), 10 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-28 03:25:12,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 189 transitions. [2024-11-28 03:25:12,751 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 189 transitions. Word has length 116 [2024-11-28 03:25:12,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:25:12,756 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 189 transitions. [2024-11-28 03:25:12,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 2.111111111111111) internal successors, (95), 45 states have internal predecessors, (95), 10 states have call successors, (41), 5 states have call predecessors, (41), 12 states have return successors, (43), 10 states have call predecessors, (43), 10 states have call successors, (43) [2024-11-28 03:25:12,757 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 189 transitions. [2024-11-28 03:25:12,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-28 03:25:12,760 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:25:12,760 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:25:12,779 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 03:25:12,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:25:12,961 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:25:12,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:25:12,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1231369325, now seen corresponding path program 1 times [2024-11-28 03:25:12,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:25:12,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461493862] [2024-11-28 03:25:12,962 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:25:12,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:25:12,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:25:13,054 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:25:13,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:25:13,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461493862] [2024-11-28 03:25:13,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461493862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:25:13,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:25:13,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:25:13,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059293312] [2024-11-28 03:25:13,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:25:13,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:25:13,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:25:13,058 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:25:13,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:25:13,059 INFO L87 Difference]: Start difference. First operand 147 states and 189 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:25:13,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:25:13,136 INFO L93 Difference]: Finished difference Result 272 states and 344 transitions. [2024-11-28 03:25:13,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:25:13,137 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 118 [2024-11-28 03:25:13,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:25:13,144 INFO L225 Difference]: With dead ends: 272 [2024-11-28 03:25:13,144 INFO L226 Difference]: Without dead ends: 148 [2024-11-28 03:25:13,145 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:25:13,146 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 11 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:25:13,146 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 158 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:25:13,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-28 03:25:13,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 139. [2024-11-28 03:25:13,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 90 states have (on average 1.1222222222222222) internal successors, (101), 92 states have internal predecessors, (101), 38 states have call successors, (38), 10 states have call predecessors, (38), 10 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-28 03:25:13,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 177 transitions. [2024-11-28 03:25:13,183 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 177 transitions. Word has length 118 [2024-11-28 03:25:13,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:25:13,184 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 177 transitions. [2024-11-28 03:25:13,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:25:13,184 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 177 transitions. [2024-11-28 03:25:13,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-28 03:25:13,186 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:25:13,187 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:25:13,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:25:13,187 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:25:13,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:25:13,188 INFO L85 PathProgramCache]: Analyzing trace with hash 990142997, now seen corresponding path program 1 times [2024-11-28 03:25:13,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:25:13,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382922384] [2024-11-28 03:25:13,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:25:13,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:25:13,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:25:13,297 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:25:13,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:25:13,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382922384] [2024-11-28 03:25:13,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382922384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:25:13,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:25:13,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:25:13,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857178586] [2024-11-28 03:25:13,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:25:13,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:25:13,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:25:13,299 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:25:13,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:25:13,300 INFO L87 Difference]: Start difference. First operand 139 states and 177 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 03:25:13,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:25:13,483 INFO L93 Difference]: Finished difference Result 255 states and 322 transitions. [2024-11-28 03:25:13,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:25:13,484 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 118 [2024-11-28 03:25:13,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:25:13,486 INFO L225 Difference]: With dead ends: 255 [2024-11-28 03:25:13,486 INFO L226 Difference]: Without dead ends: 139 [2024-11-28 03:25:13,487 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:25:13,488 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 86 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:25:13,488 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 65 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:25:13,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-28 03:25:13,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2024-11-28 03:25:13,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 90 states have (on average 1.1) internal successors, (99), 92 states have internal predecessors, (99), 38 states have call successors, (38), 10 states have call predecessors, (38), 10 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-28 03:25:13,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 175 transitions. [2024-11-28 03:25:13,519 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 175 transitions. Word has length 118 [2024-11-28 03:25:13,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:25:13,519 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 175 transitions. [2024-11-28 03:25:13,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 03:25:13,520 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 175 transitions. [2024-11-28 03:25:13,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-28 03:25:13,521 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:25:13,521 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:25:13,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:25:13,522 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:25:13,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:25:13,522 INFO L85 PathProgramCache]: Analyzing trace with hash -477987345, now seen corresponding path program 1 times [2024-11-28 03:25:13,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:25:13,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608089682] [2024-11-28 03:25:13,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:25:13,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:25:13,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:25:13,666 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:25:13,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:25:13,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608089682] [2024-11-28 03:25:13,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608089682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:25:13,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:25:13,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:25:13,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514215590] [2024-11-28 03:25:13,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:25:13,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:25:13,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:25:13,673 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:25:13,673 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:25:13,674 INFO L87 Difference]: Start difference. First operand 139 states and 175 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:25:14,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:25:14,037 INFO L93 Difference]: Finished difference Result 404 states and 502 transitions. [2024-11-28 03:25:14,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:25:14,038 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 119 [2024-11-28 03:25:14,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:25:14,046 INFO L225 Difference]: With dead ends: 404 [2024-11-28 03:25:14,046 INFO L226 Difference]: Without dead ends: 288 [2024-11-28 03:25:14,047 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:25:14,050 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 84 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:25:14,051 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 260 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:25:14,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2024-11-28 03:25:14,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 274. [2024-11-28 03:25:14,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 180 states have (on average 1.1166666666666667) internal successors, (201), 183 states have internal predecessors, (201), 72 states have call successors, (72), 21 states have call predecessors, (72), 21 states have return successors, (72), 69 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-28 03:25:14,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 345 transitions. [2024-11-28 03:25:14,151 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 345 transitions. Word has length 119 [2024-11-28 03:25:14,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:25:14,152 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 345 transitions. [2024-11-28 03:25:14,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:25:14,153 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 345 transitions. [2024-11-28 03:25:14,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-28 03:25:14,155 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:25:14,155 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:25:14,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:25:14,155 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:25:14,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:25:14,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1641860466, now seen corresponding path program 1 times [2024-11-28 03:25:14,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:25:14,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603351388] [2024-11-28 03:25:14,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:25:14,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:25:14,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:25:14,242 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:25:14,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:25:14,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603351388] [2024-11-28 03:25:14,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603351388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:25:14,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:25:14,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:25:14,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399509100] [2024-11-28 03:25:14,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:25:14,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:25:14,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:25:14,245 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:25:14,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:25:14,246 INFO L87 Difference]: Start difference. First operand 274 states and 345 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:25:14,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:25:14,360 INFO L93 Difference]: Finished difference Result 525 states and 658 transitions. [2024-11-28 03:25:14,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:25:14,361 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 120 [2024-11-28 03:25:14,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:25:14,368 INFO L225 Difference]: With dead ends: 525 [2024-11-28 03:25:14,368 INFO L226 Difference]: Without dead ends: 274 [2024-11-28 03:25:14,369 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:25:14,369 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 21 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:25:14,370 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 147 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:25:14,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2024-11-28 03:25:14,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2024-11-28 03:25:14,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 180 states have (on average 1.1) internal successors, (198), 183 states have internal predecessors, (198), 72 states have call successors, (72), 21 states have call predecessors, (72), 21 states have return successors, (72), 69 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-28 03:25:14,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 342 transitions. [2024-11-28 03:25:14,449 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 342 transitions. Word has length 120 [2024-11-28 03:25:14,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:25:14,451 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 342 transitions. [2024-11-28 03:25:14,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:25:14,452 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 342 transitions. [2024-11-28 03:25:14,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-28 03:25:14,453 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:25:14,454 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:25:14,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:25:14,454 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:25:14,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:25:14,455 INFO L85 PathProgramCache]: Analyzing trace with hash 599365845, now seen corresponding path program 1 times [2024-11-28 03:25:14,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:25:14,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022846064] [2024-11-28 03:25:14,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:25:14,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:25:14,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:25:14,528 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:25:14,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:25:14,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022846064] [2024-11-28 03:25:14,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022846064] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:25:14,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:25:14,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:25:14,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661753455] [2024-11-28 03:25:14,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:25:14,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:25:14,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:25:14,531 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:25:14,532 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:25:14,532 INFO L87 Difference]: Start difference. First operand 274 states and 342 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:25:14,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:25:14,661 INFO L93 Difference]: Finished difference Result 655 states and 810 transitions. [2024-11-28 03:25:14,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:25:14,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 123 [2024-11-28 03:25:14,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:25:14,670 INFO L225 Difference]: With dead ends: 655 [2024-11-28 03:25:14,674 INFO L226 Difference]: Without dead ends: 404 [2024-11-28 03:25:14,676 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:25:14,677 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 65 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:25:14,677 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 161 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:25:14,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2024-11-28 03:25:14,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 342. [2024-11-28 03:25:14,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 224 states have (on average 1.0892857142857142) internal successors, (244), 228 states have internal predecessors, (244), 90 states have call successors, (90), 27 states have call predecessors, (90), 27 states have return successors, (90), 86 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-28 03:25:14,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 424 transitions. [2024-11-28 03:25:14,781 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 424 transitions. Word has length 123 [2024-11-28 03:25:14,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:25:14,784 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 424 transitions. [2024-11-28 03:25:14,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:25:14,784 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 424 transitions. [2024-11-28 03:25:14,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-28 03:25:14,787 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:25:14,788 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:25:14,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:25:14,788 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:25:14,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:25:14,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1588499968, now seen corresponding path program 1 times [2024-11-28 03:25:14,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:25:14,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689364175] [2024-11-28 03:25:14,789 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:25:14,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:25:14,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:25:14,903 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:25:14,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:25:14,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689364175] [2024-11-28 03:25:14,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689364175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:25:14,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:25:14,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:25:14,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493476926] [2024-11-28 03:25:14,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:25:14,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:25:14,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:25:14,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:25:14,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:25:14,910 INFO L87 Difference]: Start difference. First operand 342 states and 424 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 03:25:15,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:25:15,165 INFO L93 Difference]: Finished difference Result 525 states and 648 transitions. [2024-11-28 03:25:15,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:25:15,165 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 123 [2024-11-28 03:25:15,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:25:15,172 INFO L225 Difference]: With dead ends: 525 [2024-11-28 03:25:15,172 INFO L226 Difference]: Without dead ends: 341 [2024-11-28 03:25:15,174 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:25:15,178 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 62 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:25:15,178 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 114 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:25:15,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-11-28 03:25:15,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2024-11-28 03:25:15,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 223 states have (on average 1.0807174887892377) internal successors, (241), 227 states have internal predecessors, (241), 90 states have call successors, (90), 27 states have call predecessors, (90), 27 states have return successors, (90), 86 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-28 03:25:15,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 421 transitions. [2024-11-28 03:25:15,290 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 421 transitions. Word has length 123 [2024-11-28 03:25:15,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:25:15,291 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 421 transitions. [2024-11-28 03:25:15,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 03:25:15,292 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 421 transitions. [2024-11-28 03:25:15,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-28 03:25:15,295 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:25:15,296 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:25:15,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:25:15,296 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:25:15,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:25:15,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1016670393, now seen corresponding path program 1 times [2024-11-28 03:25:15,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:25:15,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057917755] [2024-11-28 03:25:15,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:25:15,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:25:15,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:25:17,372 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 135 proven. 33 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2024-11-28 03:25:17,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:25:17,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057917755] [2024-11-28 03:25:17,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057917755] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:25:17,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204345297] [2024-11-28 03:25:17,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:25:17,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:25:17,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:25:17,376 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:25:17,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:25:17,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:25:17,643 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-28 03:25:17,649 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:25:19,635 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 480 proven. 33 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-28 03:25:19,636 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:25:21,592 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 63 proven. 36 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2024-11-28 03:25:21,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1204345297] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:25:21,592 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:25:21,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 20, 17] total 42 [2024-11-28 03:25:21,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709048287] [2024-11-28 03:25:21,593 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:25:21,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-28 03:25:21,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:25:21,596 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-28 03:25:21,598 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=1397, Unknown=0, NotChecked=0, Total=1722 [2024-11-28 03:25:21,598 INFO L87 Difference]: Start difference. First operand 341 states and 421 transitions. Second operand has 42 states, 42 states have (on average 2.5952380952380953) internal successors, (109), 42 states have internal predecessors, (109), 9 states have call successors, (42), 5 states have call predecessors, (42), 11 states have return successors, (42), 9 states have call predecessors, (42), 9 states have call successors, (42) [2024-11-28 03:25:23,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:25:23,947 INFO L93 Difference]: Finished difference Result 389 states and 468 transitions. [2024-11-28 03:25:23,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-28 03:25:23,948 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 2.5952380952380953) internal successors, (109), 42 states have internal predecessors, (109), 9 states have call successors, (42), 5 states have call predecessors, (42), 11 states have return successors, (42), 9 states have call predecessors, (42), 9 states have call successors, (42) Word has length 123 [2024-11-28 03:25:23,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:25:23,951 INFO L225 Difference]: With dead ends: 389 [2024-11-28 03:25:23,951 INFO L226 Difference]: Without dead ends: 387 [2024-11-28 03:25:23,953 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 796 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=679, Invalid=2513, Unknown=0, NotChecked=0, Total=3192 [2024-11-28 03:25:23,953 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 156 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 1529 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 1643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 1529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:25:23,953 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 484 Invalid, 1643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 1529 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 03:25:23,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2024-11-28 03:25:24,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 347. [2024-11-28 03:25:24,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 232 states have (on average 1.0732758620689655) internal successors, (249), 236 states have internal predecessors, (249), 85 states have call successors, (85), 29 states have call predecessors, (85), 29 states have return successors, (85), 81 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-28 03:25:24,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 419 transitions. [2024-11-28 03:25:24,061 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 419 transitions. Word has length 123 [2024-11-28 03:25:24,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:25:24,062 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 419 transitions. [2024-11-28 03:25:24,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 2.5952380952380953) internal successors, (109), 42 states have internal predecessors, (109), 9 states have call successors, (42), 5 states have call predecessors, (42), 11 states have return successors, (42), 9 states have call predecessors, (42), 9 states have call successors, (42) [2024-11-28 03:25:24,062 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 419 transitions. [2024-11-28 03:25:24,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-28 03:25:24,064 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:25:24,064 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:25:24,075 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 03:25:24,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-28 03:25:24,265 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:25:24,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:25:24,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1244896759, now seen corresponding path program 1 times [2024-11-28 03:25:24,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:25:24,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340816480] [2024-11-28 03:25:24,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:25:24,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:25:24,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:25:24,483 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 27 proven. 24 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-28 03:25:24,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:25:24,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340816480] [2024-11-28 03:25:24,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340816480] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:25:24,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132955380] [2024-11-28 03:25:24,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:25:24,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:25:24,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:25:24,490 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:25:24,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 03:25:24,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:25:24,612 INFO L256 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:25:24,615 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:25:24,961 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 323 proven. 24 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-11-28 03:25:24,961 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:25:25,242 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 27 proven. 24 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-28 03:25:25,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132955380] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:25:25,242 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:25:25,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 7] total 17 [2024-11-28 03:25:25,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892865876] [2024-11-28 03:25:25,243 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:25:25,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 03:25:25,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:25:25,245 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 03:25:25,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:25:25,245 INFO L87 Difference]: Start difference. First operand 347 states and 419 transitions. Second operand has 17 states, 16 states have (on average 5.5) internal successors, (88), 17 states have internal predecessors, (88), 6 states have call successors, (54), 3 states have call predecessors, (54), 6 states have return successors, (54), 6 states have call predecessors, (54), 6 states have call successors, (54) [2024-11-28 03:25:26,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:25:26,785 INFO L93 Difference]: Finished difference Result 1017 states and 1218 transitions. [2024-11-28 03:25:26,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-28 03:25:26,786 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.5) internal successors, (88), 17 states have internal predecessors, (88), 6 states have call successors, (54), 3 states have call predecessors, (54), 6 states have return successors, (54), 6 states have call predecessors, (54), 6 states have call successors, (54) Word has length 124 [2024-11-28 03:25:26,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:25:26,791 INFO L225 Difference]: With dead ends: 1017 [2024-11-28 03:25:26,792 INFO L226 Difference]: Without dead ends: 693 [2024-11-28 03:25:26,794 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=343, Invalid=989, Unknown=0, NotChecked=0, Total=1332 [2024-11-28 03:25:26,794 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 407 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 874 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:25:26,795 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [443 Valid, 529 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 874 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:25:26,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2024-11-28 03:25:26,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 316. [2024-11-28 03:25:26,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 213 states have (on average 1.0704225352112675) internal successors, (228), 216 states have internal predecessors, (228), 75 states have call successors, (75), 27 states have call predecessors, (75), 27 states have return successors, (75), 72 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-28 03:25:26,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 378 transitions. [2024-11-28 03:25:26,902 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 378 transitions. Word has length 124 [2024-11-28 03:25:26,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:25:26,904 INFO L471 AbstractCegarLoop]: Abstraction has 316 states and 378 transitions. [2024-11-28 03:25:26,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.5) internal successors, (88), 17 states have internal predecessors, (88), 6 states have call successors, (54), 3 states have call predecessors, (54), 6 states have return successors, (54), 6 states have call predecessors, (54), 6 states have call successors, (54) [2024-11-28 03:25:26,905 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 378 transitions. [2024-11-28 03:25:26,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-28 03:25:26,907 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:25:26,907 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:25:26,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 03:25:27,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:25:27,108 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:25:27,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:25:27,108 INFO L85 PathProgramCache]: Analyzing trace with hash 197587415, now seen corresponding path program 1 times [2024-11-28 03:25:27,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:25:27,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764053327] [2024-11-28 03:25:27,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:25:27,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:25:27,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:25:27,192 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:25:27,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:25:27,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764053327] [2024-11-28 03:25:27,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764053327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:25:27,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:25:27,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:25:27,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608483993] [2024-11-28 03:25:27,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:25:27,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:25:27,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:25:27,195 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:25:27,195 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:25:27,196 INFO L87 Difference]: Start difference. First operand 316 states and 378 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:25:27,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:25:27,342 INFO L93 Difference]: Finished difference Result 686 states and 817 transitions. [2024-11-28 03:25:27,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:25:27,342 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 124 [2024-11-28 03:25:27,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:25:27,346 INFO L225 Difference]: With dead ends: 686 [2024-11-28 03:25:27,346 INFO L226 Difference]: Without dead ends: 403 [2024-11-28 03:25:27,348 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:25:27,348 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 57 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:25:27,349 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 209 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:25:27,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-11-28 03:25:27,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 287. [2024-11-28 03:25:27,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 197 states have (on average 1.0659898477157361) internal successors, (210), 199 states have internal predecessors, (210), 65 states have call successors, (65), 24 states have call predecessors, (65), 24 states have return successors, (65), 63 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-28 03:25:27,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 340 transitions. [2024-11-28 03:25:27,434 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 340 transitions. Word has length 124 [2024-11-28 03:25:27,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:25:27,435 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 340 transitions. [2024-11-28 03:25:27,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:25:27,435 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 340 transitions. [2024-11-28 03:25:27,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-28 03:25:27,437 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:25:27,437 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:25:27,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 03:25:27,437 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:25:27,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:25:27,438 INFO L85 PathProgramCache]: Analyzing trace with hash -239012709, now seen corresponding path program 1 times [2024-11-28 03:25:27,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:25:27,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478551365] [2024-11-28 03:25:27,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:25:27,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:25:27,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:25:29,220 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 63 proven. 33 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2024-11-28 03:25:29,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:25:29,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478551365] [2024-11-28 03:25:29,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478551365] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:25:29,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131259457] [2024-11-28 03:25:29,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:25:29,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:25:29,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:25:29,224 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:25:29,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 03:25:29,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:25:29,393 INFO L256 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-28 03:25:29,398 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:25:30,537 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 378 proven. 33 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2024-11-28 03:25:30,537 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:25:32,315 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 63 proven. 36 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2024-11-28 03:25:32,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131259457] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:25:32,316 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:25:32,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 18, 15] total 33 [2024-11-28 03:25:32,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601321131] [2024-11-28 03:25:32,316 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:25:32,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-28 03:25:32,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:25:32,318 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-28 03:25:32,318 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=268, Invalid=788, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 03:25:32,319 INFO L87 Difference]: Start difference. First operand 287 states and 340 transitions. Second operand has 33 states, 33 states have (on average 3.0606060606060606) internal successors, (101), 33 states have internal predecessors, (101), 4 states have call successors, (25), 4 states have call predecessors, (25), 9 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2024-11-28 03:25:34,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:25:34,168 INFO L93 Difference]: Finished difference Result 495 states and 586 transitions. [2024-11-28 03:25:34,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-28 03:25:34,169 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 3.0606060606060606) internal successors, (101), 33 states have internal predecessors, (101), 4 states have call successors, (25), 4 states have call predecessors, (25), 9 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 125 [2024-11-28 03:25:34,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:25:34,172 INFO L225 Difference]: With dead ends: 495 [2024-11-28 03:25:34,172 INFO L226 Difference]: Without dead ends: 333 [2024-11-28 03:25:34,175 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 230 SyntacticMatches, 5 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 655 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=525, Invalid=1545, Unknown=0, NotChecked=0, Total=2070 [2024-11-28 03:25:34,176 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 179 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 1471 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 1571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:25:34,177 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 574 Invalid, 1571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1471 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 03:25:34,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-11-28 03:25:34,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 295. [2024-11-28 03:25:34,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 205 states have (on average 1.0634146341463415) internal successors, (218), 207 states have internal predecessors, (218), 65 states have call successors, (65), 24 states have call predecessors, (65), 24 states have return successors, (65), 63 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-28 03:25:34,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 348 transitions. [2024-11-28 03:25:34,262 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 348 transitions. Word has length 125 [2024-11-28 03:25:34,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:25:34,263 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 348 transitions. [2024-11-28 03:25:34,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 3.0606060606060606) internal successors, (101), 33 states have internal predecessors, (101), 4 states have call successors, (25), 4 states have call predecessors, (25), 9 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2024-11-28 03:25:34,263 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 348 transitions. [2024-11-28 03:25:34,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-28 03:25:34,266 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:25:34,266 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:25:34,279 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 03:25:34,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:25:34,471 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:25:34,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:25:34,471 INFO L85 PathProgramCache]: Analyzing trace with hash 605084724, now seen corresponding path program 1 times [2024-11-28 03:25:34,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:25:34,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105943294] [2024-11-28 03:25:34,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:25:34,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:25:34,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:25:34,514 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:25:34,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:25:34,610 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:25:34,610 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:25:34,611 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 03:25:34,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 03:25:34,618 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:25:34,760 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:25:34,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:25:34 BoogieIcfgContainer [2024-11-28 03:25:34,770 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:25:34,770 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:25:34,771 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:25:34,771 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:25:34,772 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:24:49" (3/4) ... [2024-11-28 03:25:34,774 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 03:25:34,775 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:25:34,776 INFO L158 Benchmark]: Toolchain (without parser) took 46690.40ms. Allocated memory was 142.6MB in the beginning and 545.3MB in the end (delta: 402.7MB). Free memory was 100.1MB in the beginning and 327.7MB in the end (delta: -227.6MB). Peak memory consumption was 177.9MB. Max. memory is 16.1GB. [2024-11-28 03:25:34,777 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 167.8MB. Free memory is still 106.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:25:34,777 INFO L158 Benchmark]: CACSL2BoogieTranslator took 376.45ms. Allocated memory is still 142.6MB. Free memory was 100.1MB in the beginning and 87.5MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:25:34,778 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.16ms. Allocated memory is still 142.6MB. Free memory was 87.5MB in the beginning and 85.4MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:25:34,778 INFO L158 Benchmark]: Boogie Preprocessor took 84.94ms. Allocated memory is still 142.6MB. Free memory was 85.4MB in the beginning and 83.2MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:25:34,779 INFO L158 Benchmark]: RCFGBuilder took 606.68ms. Allocated memory is still 142.6MB. Free memory was 83.2MB in the beginning and 66.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:25:34,779 INFO L158 Benchmark]: TraceAbstraction took 45523.63ms. Allocated memory was 142.6MB in the beginning and 545.3MB in the end (delta: 402.7MB). Free memory was 65.8MB in the beginning and 327.9MB in the end (delta: -262.2MB). Peak memory consumption was 135.9MB. Max. memory is 16.1GB. [2024-11-28 03:25:34,780 INFO L158 Benchmark]: Witness Printer took 4.84ms. Allocated memory is still 545.3MB. Free memory was 327.9MB in the beginning and 327.7MB in the end (delta: 175.2kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:25:34,782 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 167.8MB. Free memory is still 106.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 376.45ms. Allocated memory is still 142.6MB. Free memory was 100.1MB in the beginning and 87.5MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.16ms. Allocated memory is still 142.6MB. Free memory was 87.5MB in the beginning and 85.4MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 84.94ms. Allocated memory is still 142.6MB. Free memory was 85.4MB in the beginning and 83.2MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 606.68ms. Allocated memory is still 142.6MB. Free memory was 83.2MB in the beginning and 66.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 45523.63ms. Allocated memory was 142.6MB in the beginning and 545.3MB in the end (delta: 402.7MB). Free memory was 65.8MB in the beginning and 327.9MB in the end (delta: -262.2MB). Peak memory consumption was 135.9MB. Max. memory is 16.1GB. * Witness Printer took 4.84ms. Allocated memory is still 545.3MB. Free memory was 327.9MB in the beginning and 327.7MB in the end (delta: 175.2kB). Peak memory consumption was 8.4MB. 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 101, overapproximation of someBinaryFLOATComparisonOperation at line 43, overapproximation of bitwiseOr at line 101, overapproximation of bitwiseOr at line 51. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = 16; [L23] signed short int var_1_7 = 32; [L24] signed short int var_1_8 = 20113; [L25] signed short int var_1_9 = 100; [L26] signed char var_1_10 = 100; [L27] signed char var_1_11 = -1; [L28] signed char var_1_12 = 16; [L29] unsigned char var_1_13 = 1; [L30] unsigned char var_1_15 = 0; [L31] unsigned char var_1_16 = 1; [L32] unsigned short int var_1_18 = 10; [L33] unsigned short int var_1_19 = 256; [L34] signed long int var_1_20 = 32; [L35] signed long int var_1_21 = 127; [L36] signed short int var_1_22 = 128; VAL [isInitial=0, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=32, var_1_8=20113, var_1_9=100] [L105] isInitial = 1 [L106] FCALL initially() [L108] FCALL updateLastVariables() [L109] CALL updateVariables() [L70] var_1_7 = __VERIFIER_nondet_short() [L71] CALL assume_abort_if_not(var_1_7 >= -1) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=20113, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=20113, var_1_9=100] [L71] RET assume_abort_if_not(var_1_7 >= -1) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=20113, var_1_9=100] [L72] CALL assume_abort_if_not(var_1_7 <= 32766) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=20113, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=20113, var_1_9=100] [L72] RET assume_abort_if_not(var_1_7 <= 32766) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=20113, var_1_9=100] [L73] var_1_8 = __VERIFIER_nondet_short() [L74] CALL assume_abort_if_not(var_1_8 >= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=100] [L74] RET assume_abort_if_not(var_1_8 >= 16383) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=100] [L75] CALL assume_abort_if_not(var_1_8 <= 32766) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=100] [L75] RET assume_abort_if_not(var_1_8 <= 32766) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=100] [L76] var_1_9 = __VERIFIER_nondet_short() [L77] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L77] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L78] CALL assume_abort_if_not(var_1_9 <= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L78] RET assume_abort_if_not(var_1_9 <= 16383) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L79] var_1_11 = __VERIFIER_nondet_char() [L80] CALL assume_abort_if_not(var_1_11 >= -63) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L80] RET assume_abort_if_not(var_1_11 >= -63) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L81] CALL assume_abort_if_not(var_1_11 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L81] RET assume_abort_if_not(var_1_11 <= 63) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L82] var_1_12 = __VERIFIER_nondet_char() [L83] CALL assume_abort_if_not(var_1_12 >= -31) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L83] RET assume_abort_if_not(var_1_12 >= -31) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L84] CALL assume_abort_if_not(var_1_12 <= 32) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L84] RET assume_abort_if_not(var_1_12 <= 32) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L85] var_1_15 = __VERIFIER_nondet_uchar() [L86] CALL assume_abort_if_not(var_1_15 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L86] RET assume_abort_if_not(var_1_15 >= 1) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L87] CALL assume_abort_if_not(var_1_15 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L87] RET assume_abort_if_not(var_1_15 <= 1) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L88] var_1_16 = __VERIFIER_nondet_uchar() [L89] CALL assume_abort_if_not(var_1_16 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L89] RET assume_abort_if_not(var_1_16 >= 1) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L90] CALL assume_abort_if_not(var_1_16 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L90] RET assume_abort_if_not(var_1_16 <= 1) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L91] var_1_19 = __VERIFIER_nondet_ushort() [L92] CALL assume_abort_if_not(var_1_19 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L92] RET assume_abort_if_not(var_1_19 >= 0) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L93] CALL assume_abort_if_not(var_1_19 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=65534, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=65534, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L93] RET assume_abort_if_not(var_1_19 <= 65534) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=65534, var_1_1=16, var_1_20=32, var_1_21=127, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L94] var_1_21 = __VERIFIER_nondet_long() [L95] CALL assume_abort_if_not(var_1_21 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=65534, var_1_1=16, var_1_20=32, var_1_21=0, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=65534, var_1_1=16, var_1_20=32, var_1_21=0, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L95] RET assume_abort_if_not(var_1_21 >= -2147483648) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=65534, var_1_1=16, var_1_20=32, var_1_21=0, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L96] CALL assume_abort_if_not(var_1_21 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=65534, var_1_1=16, var_1_20=32, var_1_21=0, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=65534, var_1_1=16, var_1_20=32, var_1_21=0, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L96] RET assume_abort_if_not(var_1_21 <= 2147483647) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=65534, var_1_1=16, var_1_20=32, var_1_21=0, var_1_22=128, var_1_7=-1, var_1_8=32766, var_1_9=0] [L109] RET updateVariables() [L110] CALL step() [L40] var_1_18 = var_1_19 [L41] var_1_20 = var_1_21 [L42] var_1_22 = var_1_12 VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=65534, var_1_19=65534, var_1_1=16, var_1_20=0, var_1_21=0, var_1_22=-31, var_1_7=-1, var_1_8=32766, var_1_9=0] [L43] COND FALSE !(127.5f > var_1_20) [L46] var_1_13 = ((var_1_20 >= var_1_20) || var_1_15) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=65534, var_1_19=65534, var_1_1=16, var_1_20=0, var_1_21=0, var_1_22=-31, var_1_7=-1, var_1_8=32766, var_1_9=0] [L48] COND FALSE !(var_1_18 == var_1_7) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=65534, var_1_19=65534, var_1_1=16, var_1_20=0, var_1_21=0, var_1_22=-31, var_1_7=-1, var_1_8=32766, var_1_9=0] [L51] EXPR (32 * -25) | var_1_22 VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=65534, var_1_19=65534, var_1_1=16, var_1_20=0, var_1_21=0, var_1_22=-31, var_1_7=-1, var_1_8=32766, var_1_9=0] [L51] COND FALSE !(((32 * -25) | var_1_22) >= var_1_11) [L57] COND TRUE \read(var_1_13) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=65534, var_1_19=65534, var_1_1=16, var_1_20=0, var_1_21=0, var_1_22=-31, var_1_7=-1, var_1_8=32766, var_1_9=0] [L58] COND TRUE var_1_10 > var_1_22 VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=65534, var_1_19=65534, var_1_1=16, var_1_20=0, var_1_21=0, var_1_22=-31, var_1_7=-1, var_1_8=32766, var_1_9=0] [L59] COND TRUE \read(var_1_13) [L60] var_1_1 = (var_1_7 - (var_1_8 - var_1_9)) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=65534, var_1_19=65534, var_1_1=-32767, var_1_20=0, var_1_21=0, var_1_22=-31, var_1_7=-1, var_1_8=32766, var_1_9=0] [L110] RET step() [L111] CALL, EXPR property() [L101] EXPR (var_1_13 ? ((var_1_10 > var_1_22) ? (var_1_13 ? (var_1_1 == ((signed short int) (var_1_7 - (var_1_8 - var_1_9)))) : (var_1_1 == ((signed short int) var_1_18))) : (var_1_1 == ((signed short int) 8))) : 1) && ((var_1_18 == var_1_7) ? (var_1_10 == ((signed char) (var_1_11 + (var_1_12 + -25)))) : ((((32 * -25) | var_1_22) >= var_1_11) ? (var_1_13 ? (var_1_10 == ((signed char) var_1_12)) : 1) : 1)) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=65534, var_1_19=65534, var_1_1=-32767, var_1_20=0, var_1_21=0, var_1_22=-31, var_1_7=-1, var_1_8=32766, var_1_9=0] [L101] EXPR (var_1_18 == var_1_7) ? (var_1_10 == ((signed char) (var_1_11 + (var_1_12 + -25)))) : ((((32 * -25) | var_1_22) >= var_1_11) ? (var_1_13 ? (var_1_10 == ((signed char) var_1_12)) : 1) : 1) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=65534, var_1_19=65534, var_1_1=-32767, var_1_20=0, var_1_21=0, var_1_22=-31, var_1_7=-1, var_1_8=32766, var_1_9=0] [L101] EXPR (32 * -25) | var_1_22 VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=65534, var_1_19=65534, var_1_1=-32767, var_1_20=0, var_1_21=0, var_1_22=-31, var_1_7=-1, var_1_8=32766, var_1_9=0] [L101] EXPR (var_1_18 == var_1_7) ? (var_1_10 == ((signed char) (var_1_11 + (var_1_12 + -25)))) : ((((32 * -25) | var_1_22) >= var_1_11) ? (var_1_13 ? (var_1_10 == ((signed char) var_1_12)) : 1) : 1) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=65534, var_1_19=65534, var_1_1=-32767, var_1_20=0, var_1_21=0, var_1_22=-31, var_1_7=-1, var_1_8=32766, var_1_9=0] [L101] EXPR (var_1_13 ? ((var_1_10 > var_1_22) ? (var_1_13 ? (var_1_1 == ((signed short int) (var_1_7 - (var_1_8 - var_1_9)))) : (var_1_1 == ((signed short int) var_1_18))) : (var_1_1 == ((signed short int) 8))) : 1) && ((var_1_18 == var_1_7) ? (var_1_10 == ((signed char) (var_1_11 + (var_1_12 + -25)))) : ((((32 * -25) | var_1_22) >= var_1_11) ? (var_1_13 ? (var_1_10 == ((signed char) var_1_12)) : 1) : 1)) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=65534, var_1_19=65534, var_1_1=-32767, var_1_20=0, var_1_21=0, var_1_22=-31, var_1_7=-1, var_1_8=32766, var_1_9=0] [L101-L102] return (((((var_1_13 ? ((var_1_10 > var_1_22) ? (var_1_13 ? (var_1_1 == ((signed short int) (var_1_7 - (var_1_8 - var_1_9)))) : (var_1_1 == ((signed short int) var_1_18))) : (var_1_1 == ((signed short int) 8))) : 1) && ((var_1_18 == var_1_7) ? (var_1_10 == ((signed char) (var_1_11 + (var_1_12 + -25)))) : ((((32 * -25) | var_1_22) >= var_1_11) ? (var_1_13 ? (var_1_10 == ((signed char) var_1_12)) : 1) : 1))) && ((127.5f > var_1_20) ? (var_1_13 == ((unsigned char) (var_1_15 && var_1_16))) : (var_1_13 == ((unsigned char) ((var_1_20 >= var_1_20) || var_1_15))))) && (var_1_18 == ((unsigned short int) var_1_19))) && (var_1_20 == ((signed long int) var_1_21))) && (var_1_22 == ((signed short int) var_1_12)) ; [L111] RET, EXPR property() [L111] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=65534, var_1_19=65534, var_1_1=-32767, var_1_20=0, var_1_21=0, var_1_22=-31, var_1_7=-1, var_1_8=32766, var_1_9=0] [L19] reach_error() VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=-31, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=65534, var_1_19=65534, var_1_1=-32767, var_1_20=0, var_1_21=0, var_1_22=-31, var_1_7=-1, var_1_8=32766, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 64 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 45.3s, OverallIterations: 16, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 13.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2025 SdHoareTripleChecker+Valid, 8.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1923 mSDsluCounter, 4149 SdHoareTripleChecker+Invalid, 7.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2702 mSDsCounter, 810 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6084 IncrementalHoareTripleChecker+Invalid, 6894 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 810 mSolverCounterUnsat, 1447 mSDtfsCounter, 6084 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1523 GetRequests, 1263 SyntacticMatches, 9 SemanticMatches, 251 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3263 ImplicationChecksByTransitivity, 9.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=347occurred in iteration=12, InterpolantAutomatonStates: 188, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 15 MinimizatonAttempts, 801 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 26.7s InterpolantComputationTime, 2630 NumberOfCodeBlocks, 2630 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 3082 ConstructedInterpolants, 0 QuantifiedInterpolants, 13211 SizeOfPredicates, 50 NumberOfNonLiveVariables, 1646 ConjunctsInSsa, 139 ConjunctsInUnsatCore, 26 InterpolantComputations, 10 PerfectInterpolantSequences, 15353/15912 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 03:25:34,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/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_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/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_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-97.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/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_025ce41f-142b-4e78-8740-471dbbd95627/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 97ff03298340a9336a03e9d19ed0d00b1afc963b5be61528526d9d1b67b2a323 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:25:37,955 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:25:38,107 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-28 03:25:38,120 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:25:38,122 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:25:38,169 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:25:38,171 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:25:38,171 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:25:38,172 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:25:38,173 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:25:38,174 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:25:38,174 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:25:38,175 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:25:38,176 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:25:38,176 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:25:38,176 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:25:38,176 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:25:38,177 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:25:38,177 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:25:38,177 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:25:38,177 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:25:38,177 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:25:38,177 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:25:38,178 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 03:25:38,178 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 03:25:38,178 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 03:25:38,179 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:25:38,179 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:25:38,179 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:25:38,179 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:25:38,179 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:25:38,179 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:25:38,180 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:25:38,181 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:25:38,181 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:25:38,181 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:25:38,181 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:25:38,181 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:25:38,181 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:25:38,182 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:25:38,182 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:25:38,182 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:25:38,182 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:25:38,183 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:25:38,183 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 03:25:38,183 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 03:25:38,184 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:25:38,184 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:25:38,184 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:25:38,184 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:25:38,184 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_025ce41f-142b-4e78-8740-471dbbd95627/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 -> 97ff03298340a9336a03e9d19ed0d00b1afc963b5be61528526d9d1b67b2a323 [2024-11-28 03:25:38,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:25:38,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:25:38,605 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:25:38,607 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:25:38,608 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:25:38,611 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-97.i [2024-11-28 03:25:42,132 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/data/d410882d8/f1d0580a57804d0cb6d328905402f52a/FLAGfb8ef1c58 [2024-11-28 03:25:42,451 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:25:42,452 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-97.i [2024-11-28 03:25:42,462 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/data/d410882d8/f1d0580a57804d0cb6d328905402f52a/FLAGfb8ef1c58 [2024-11-28 03:25:42,716 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/data/d410882d8/f1d0580a57804d0cb6d328905402f52a [2024-11-28 03:25:42,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:25:42,721 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:25:42,722 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:25:42,722 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:25:42,727 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:25:42,728 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:25:42" (1/1) ... [2024-11-28 03:25:42,729 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18dd7dd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:25:42, skipping insertion in model container [2024-11-28 03:25:42,731 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:25:42" (1/1) ... [2024-11-28 03:25:42,751 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:25:42,948 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_025ce41f-142b-4e78-8740-471dbbd95627/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-97.i[916,929] [2024-11-28 03:25:43,016 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:25:43,047 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:25:43,059 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_025ce41f-142b-4e78-8740-471dbbd95627/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-97.i[916,929] [2024-11-28 03:25:43,082 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:25:43,099 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:25:43,100 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:25:43 WrapperNode [2024-11-28 03:25:43,100 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:25:43,100 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:25:43,101 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:25:43,101 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:25:43,106 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:25:43" (1/1) ... [2024-11-28 03:25:43,114 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:25:43" (1/1) ... [2024-11-28 03:25:43,134 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 110 [2024-11-28 03:25:43,134 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:25:43,135 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:25:43,135 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:25:43,135 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:25:43,145 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:25:43" (1/1) ... [2024-11-28 03:25:43,145 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:25:43" (1/1) ... [2024-11-28 03:25:43,148 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:25:43" (1/1) ... [2024-11-28 03:25:43,161 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 03:25:43,161 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:25:43" (1/1) ... [2024-11-28 03:25:43,162 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:25:43" (1/1) ... [2024-11-28 03:25:43,181 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:25:43" (1/1) ... [2024-11-28 03:25:43,182 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:25:43" (1/1) ... [2024-11-28 03:25:43,187 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:25:43" (1/1) ... [2024-11-28 03:25:43,192 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:25:43" (1/1) ... [2024-11-28 03:25:43,194 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:25:43" (1/1) ... [2024-11-28 03:25:43,196 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:25:43,197 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:25:43,198 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:25:43,198 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:25:43,199 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:25:43" (1/1) ... [2024-11-28 03:25:43,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:25:43,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:25:43,235 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:25:43,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:25:43,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:25:43,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 03:25:43,267 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:25:43,267 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:25:43,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:25:43,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:25:43,339 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:25:43,340 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:25:43,922 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-28 03:25:43,923 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:25:43,935 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:25:43,937 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:25:43,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:25:43 BoogieIcfgContainer [2024-11-28 03:25:43,938 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:25:43,942 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:25:43,943 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:25:43,949 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:25:43,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:25:42" (1/3) ... [2024-11-28 03:25:43,949 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@101dd7a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:25:43, skipping insertion in model container [2024-11-28 03:25:43,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:25:43" (2/3) ... [2024-11-28 03:25:43,950 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@101dd7a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:25:43, skipping insertion in model container [2024-11-28 03:25:43,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:25:43" (3/3) ... [2024-11-28 03:25:43,951 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-97.i [2024-11-28 03:25:43,966 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:25:43,968 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_no-floats_file-97.i that has 2 procedures, 53 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:25:44,042 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:25:44,055 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;@5f7f6899, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:25:44,055 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:25:44,060 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 32 states have (on average 1.375) internal successors, (44), 33 states have internal predecessors, (44), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 03:25:44,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-28 03:25:44,071 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:25:44,072 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:25:44,073 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:25:44,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:25:44,079 INFO L85 PathProgramCache]: Analyzing trace with hash 73183195, now seen corresponding path program 1 times [2024-11-28 03:25:44,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:25:44,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1898294640] [2024-11-28 03:25:44,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:25:44,090 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 03:25:44,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:25:44,094 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/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 03:25:44,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/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 03:25:44,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:25:44,276 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:25:44,285 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:25:44,337 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 322 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-28 03:25:44,338 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:25:44,341 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:25:44,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1898294640] [2024-11-28 03:25:44,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1898294640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:25:44,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:25:44,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:25:44,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815516126] [2024-11-28 03:25:44,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:25:44,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:25:44,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:25:44,368 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:25:44,368 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:25:44,370 INFO L87 Difference]: Start difference. First operand has 53 states, 32 states have (on average 1.375) internal successors, (44), 33 states have internal predecessors, (44), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) 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, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 03:25:44,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:25:44,405 INFO L93 Difference]: Finished difference Result 99 states and 172 transitions. [2024-11-28 03:25:44,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:25:44,408 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, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 111 [2024-11-28 03:25:44,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:25:44,415 INFO L225 Difference]: With dead ends: 99 [2024-11-28 03:25:44,417 INFO L226 Difference]: Without dead ends: 49 [2024-11-28 03:25:44,421 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 110 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 03:25:44,426 INFO L435 NwaCegarLoop]: 73 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, 73 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 03:25:44,428 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:25:44,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-28 03:25:44,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-11-28 03:25:44,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 29 states have internal predecessors, (37), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 03:25:44,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 73 transitions. [2024-11-28 03:25:44,482 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 73 transitions. Word has length 111 [2024-11-28 03:25:44,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:25:44,482 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 73 transitions. [2024-11-28 03:25:44,483 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, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 03:25:44,483 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 73 transitions. [2024-11-28 03:25:44,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-28 03:25:44,490 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:25:44,490 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:25:44,495 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/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 03:25:44,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/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 03:25:44,694 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:25:44,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:25:44,695 INFO L85 PathProgramCache]: Analyzing trace with hash 753856795, now seen corresponding path program 1 times [2024-11-28 03:25:44,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:25:44,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [789755840] [2024-11-28 03:25:44,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:25:44,696 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 03:25:44,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:25:44,698 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/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 03:25:44,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/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 03:25:44,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:25:44,899 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:25:44,906 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:25:45,032 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-28 03:25:45,035 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:25:45,036 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:25:45,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [789755840] [2024-11-28 03:25:45,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [789755840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:25:45,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:25:45,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:25:45,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908623596] [2024-11-28 03:25:45,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:25:45,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:25:45,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:25:45,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:25:45,041 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:25:45,041 INFO L87 Difference]: Start difference. First operand 49 states and 73 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:25:45,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:25:45,491 INFO L93 Difference]: Finished difference Result 141 states and 213 transitions. [2024-11-28 03:25:45,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:25:45,492 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 111 [2024-11-28 03:25:45,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:25:45,494 INFO L225 Difference]: With dead ends: 141 [2024-11-28 03:25:45,495 INFO L226 Difference]: Without dead ends: 95 [2024-11-28 03:25:45,495 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:25:45,496 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 66 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:25:45,497 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 136 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:25:45,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-28 03:25:45,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 55. [2024-11-28 03:25:45,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 35 states have internal predecessors, (46), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 03:25:45,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 82 transitions. [2024-11-28 03:25:45,509 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 82 transitions. Word has length 111 [2024-11-28 03:25:45,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:25:45,511 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 82 transitions. [2024-11-28 03:25:45,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-28 03:25:45,512 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 82 transitions. [2024-11-28 03:25:45,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-28 03:25:45,513 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:25:45,514 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:25:45,518 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/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 03:25:45,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/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 03:25:45,718 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:25:45,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:25:45,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1021150567, now seen corresponding path program 1 times [2024-11-28 03:25:45,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:25:45,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [349570132] [2024-11-28 03:25:45,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:25:45,736 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 03:25:45,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:25:45,738 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/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 03:25:45,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/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 03:25:45,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:25:45,918 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:25:45,927 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:25:46,521 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 348 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-28 03:25:46,522 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:25:47,112 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 63 proven. 36 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2024-11-28 03:25:47,112 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:25:47,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [349570132] [2024-11-28 03:25:47,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [349570132] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:25:47,113 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:25:47,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2024-11-28 03:25:47,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497240330] [2024-11-28 03:25:47,114 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:25:47,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:25:47,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:25:47,115 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:25:47,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:25:47,116 INFO L87 Difference]: Start difference. First operand 55 states and 82 transitions. Second operand has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 3 states have call successors, (25), 3 states have call predecessors, (25), 7 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2024-11-28 03:25:48,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:25:48,870 INFO L93 Difference]: Finished difference Result 139 states and 203 transitions. [2024-11-28 03:25:48,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:25:48,872 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 3 states have call successors, (25), 3 states have call predecessors, (25), 7 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 111 [2024-11-28 03:25:48,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:25:48,875 INFO L225 Difference]: With dead ends: 139 [2024-11-28 03:25:48,875 INFO L226 Difference]: Without dead ends: 87 [2024-11-28 03:25:48,880 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 209 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=205, Invalid=445, Unknown=0, NotChecked=0, Total=650 [2024-11-28 03:25:48,881 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 111 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:25:48,881 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 129 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 03:25:48,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-28 03:25:48,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 73. [2024-11-28 03:25:48,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 41 states have (on average 1.1219512195121952) internal successors, (46), 42 states have internal predecessors, (46), 28 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-28 03:25:48,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 102 transitions. [2024-11-28 03:25:48,916 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 102 transitions. Word has length 111 [2024-11-28 03:25:48,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:25:48,917 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 102 transitions. [2024-11-28 03:25:48,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 3 states have call successors, (25), 3 states have call predecessors, (25), 7 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2024-11-28 03:25:48,918 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 102 transitions. [2024-11-28 03:25:48,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-28 03:25:48,920 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:25:48,920 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:25:48,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/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 03:25:49,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/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 03:25:49,125 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:25:49,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:25:49,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1489236011, now seen corresponding path program 1 times [2024-11-28 03:25:49,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:25:49,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [594858673] [2024-11-28 03:25:49,127 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:25:49,127 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 03:25:49,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:25:49,132 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/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 03:25:49,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_025ce41f-142b-4e78-8740-471dbbd95627/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 03:25:49,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:25:49,279 INFO L256 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 03:25:49,289 INFO L279 TraceCheckSpWp]: Computing forward predicates...