./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl --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 3d47f2d590788b5b215b1242024ad3fa5a12acabdbb9cad16a442da1352e0490 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:21:30,940 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:21:31,051 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:21:31,057 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:21:31,058 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:21:31,099 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:21:31,102 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:21:31,102 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:21:31,103 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:21:31,108 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:21:31,109 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:21:31,110 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:21:31,110 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:21:31,112 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:21:31,112 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:21:31,113 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:21:31,113 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:21:31,114 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:21:31,114 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:21:31,115 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:21:31,115 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:21:31,116 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:21:31,116 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:21:31,116 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:21:31,117 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:21:31,118 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:21:31,118 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:21:31,119 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:21:31,119 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:21:31,119 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:21:31,121 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:21:31,121 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:21:31,121 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:21:31,122 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:21:31,122 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:21:31,122 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:21:31,122 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:21:31,122 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:21:31,123 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:21:31,123 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d47f2d590788b5b215b1242024ad3fa5a12acabdbb9cad16a442da1352e0490 [2023-11-12 02:21:31,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:21:31,522 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:21:31,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:21:31,527 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:21:31,527 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:21:31,529 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-3.i [2023-11-12 02:21:34,799 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:21:35,064 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:21:35,065 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-3.i [2023-11-12 02:21:35,082 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/data/3b843bb5c/0def7bd3bcfd4bfa858ab4ba13f05f2c/FLAGba2e2f088 [2023-11-12 02:21:35,101 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/data/3b843bb5c/0def7bd3bcfd4bfa858ab4ba13f05f2c [2023-11-12 02:21:35,108 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:21:35,110 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:21:35,114 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:21:35,114 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:21:35,120 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:21:35,123 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:21:35" (1/1) ... [2023-11-12 02:21:35,124 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77fe99f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:35, skipping insertion in model container [2023-11-12 02:21:35,125 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:21:35" (1/1) ... [2023-11-12 02:21:35,173 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:21:35,378 WARN L240 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_54a14bc2-0aa4-4cb2-b681-23a37e912327/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-3.i[918,931] [2023-11-12 02:21:35,441 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:21:35,455 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:21:35,470 WARN L240 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_54a14bc2-0aa4-4cb2-b681-23a37e912327/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-3.i[918,931] [2023-11-12 02:21:35,504 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:21:35,523 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:21:35,523 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:35 WrapperNode [2023-11-12 02:21:35,524 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:21:35,525 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:21:35,525 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:21:35,525 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:21:35,533 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:35" (1/1) ... [2023-11-12 02:21:35,544 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:35" (1/1) ... [2023-11-12 02:21:35,595 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 152 [2023-11-12 02:21:35,595 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:21:35,596 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:21:35,597 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:21:35,597 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:21:35,607 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:35" (1/1) ... [2023-11-12 02:21:35,608 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:35" (1/1) ... [2023-11-12 02:21:35,612 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:35" (1/1) ... [2023-11-12 02:21:35,612 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:35" (1/1) ... [2023-11-12 02:21:35,625 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:35" (1/1) ... [2023-11-12 02:21:35,629 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:35" (1/1) ... [2023-11-12 02:21:35,634 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:35" (1/1) ... [2023-11-12 02:21:35,636 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:35" (1/1) ... [2023-11-12 02:21:35,642 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:21:35,643 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:21:35,643 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:21:35,643 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:21:35,644 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:35" (1/1) ... [2023-11-12 02:21:35,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:21:35,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:21:35,688 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:21:35,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:21:35,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:21:35,733 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:21:35,734 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:21:35,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:21:35,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:21:35,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:21:35,809 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:21:35,811 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:21:36,280 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:21:36,293 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:21:36,298 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:21:36,301 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:21:36 BoogieIcfgContainer [2023-11-12 02:21:36,301 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:21:36,306 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:21:36,308 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:21:36,311 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:21:36,312 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:21:35" (1/3) ... [2023-11-12 02:21:36,312 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e7c9654 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:21:36, skipping insertion in model container [2023-11-12 02:21:36,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:35" (2/3) ... [2023-11-12 02:21:36,313 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e7c9654 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:21:36, skipping insertion in model container [2023-11-12 02:21:36,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:21:36" (3/3) ... [2023-11-12 02:21:36,315 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_dependencies_file-3.i [2023-11-12 02:21:36,337 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:21:36,337 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:21:36,409 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:21:36,418 INFO L357 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, mHoare=true, 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;@175f19d1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:21:36,418 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:21:36,422 INFO L276 IsEmpty]: Start isEmpty. Operand has 66 states, 48 states have (on average 1.5625) internal successors, (75), 49 states have internal predecessors, (75), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 02:21:36,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-12 02:21:36,442 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:21:36,444 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:21:36,444 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:21:36,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:21:36,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1882725915, now seen corresponding path program 1 times [2023-11-12 02:21:36,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:21:36,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44001395] [2023-11-12 02:21:36,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:21:36,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:21:36,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:21:36,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:21:36,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44001395] [2023-11-12 02:21:36,706 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-12 02:21:36,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1113585555] [2023-11-12 02:21:36,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:21:36,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:21:36,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:21:36,711 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:21:36,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:21:36,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:21:36,924 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 02:21:36,935 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:21:37,001 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2023-11-12 02:21:37,002 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:21:37,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1113585555] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:21:37,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:21:37,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:21:37,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351512320] [2023-11-12 02:21:37,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:21:37,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:21:37,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:21:37,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:21:37,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:21:37,045 INFO L87 Difference]: Start difference. First operand has 66 states, 48 states have (on average 1.5625) internal successors, (75), 49 states have internal predecessors, (75), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-12 02:21:37,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:21:37,084 INFO L93 Difference]: Finished difference Result 125 states and 219 transitions. [2023-11-12 02:21:37,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:21:37,086 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 102 [2023-11-12 02:21:37,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:21:37,098 INFO L225 Difference]: With dead ends: 125 [2023-11-12 02:21:37,098 INFO L226 Difference]: Without dead ends: 62 [2023-11-12 02:21:37,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:21:37,109 INFO L413 NwaCegarLoop]: 97 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, 97 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 [2023-11-12 02:21:37,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:21:37,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-11-12 02:21:37,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2023-11-12 02:21:37,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 45 states have (on average 1.488888888888889) internal successors, (67), 45 states have internal predecessors, (67), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 02:21:37,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 97 transitions. [2023-11-12 02:21:37,161 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 97 transitions. Word has length 102 [2023-11-12 02:21:37,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:21:37,162 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 97 transitions. [2023-11-12 02:21:37,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-12 02:21:37,163 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 97 transitions. [2023-11-12 02:21:37,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-12 02:21:37,166 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:21:37,166 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:21:37,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:21:37,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-12 02:21:37,374 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:21:37,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:21:37,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1674113383, now seen corresponding path program 1 times [2023-11-12 02:21:37,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:21:37,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959099863] [2023-11-12 02:21:37,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:21:37,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:21:37,477 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:21:37,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [678422105] [2023-11-12 02:21:37,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:21:37,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:21:37,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:21:37,480 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:21:37,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:21:37,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:21:37,670 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:21:37,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:21:37,935 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-12 02:21:37,936 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:21:37,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:21:37,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959099863] [2023-11-12 02:21:37,939 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:21:37,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [678422105] [2023-11-12 02:21:37,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [678422105] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:21:37,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:21:37,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:21:37,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579927467] [2023-11-12 02:21:37,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:21:37,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:21:37,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:21:37,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:21:37,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:21:37,945 INFO L87 Difference]: Start difference. First operand 62 states and 97 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-12 02:21:38,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:21:38,034 INFO L93 Difference]: Finished difference Result 180 states and 285 transitions. [2023-11-12 02:21:38,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:21:38,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 102 [2023-11-12 02:21:38,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:21:38,038 INFO L225 Difference]: With dead ends: 180 [2023-11-12 02:21:38,038 INFO L226 Difference]: Without dead ends: 121 [2023-11-12 02:21:38,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:21:38,040 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 40 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:21:38,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 173 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:21:38,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-11-12 02:21:38,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 119. [2023-11-12 02:21:38,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 86 states have (on average 1.4651162790697674) internal successors, (126), 86 states have internal predecessors, (126), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-12 02:21:38,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 186 transitions. [2023-11-12 02:21:38,074 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 186 transitions. Word has length 102 [2023-11-12 02:21:38,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:21:38,075 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 186 transitions. [2023-11-12 02:21:38,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-12 02:21:38,076 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 186 transitions. [2023-11-12 02:21:38,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-12 02:21:38,078 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:21:38,079 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:21:38,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:21:38,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:21:38,285 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:21:38,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:21:38,286 INFO L85 PathProgramCache]: Analyzing trace with hash -838265024, now seen corresponding path program 1 times [2023-11-12 02:21:38,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:21:38,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098760623] [2023-11-12 02:21:38,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:21:38,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:21:38,329 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:21:38,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1148177185] [2023-11-12 02:21:38,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:21:38,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:21:38,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:21:38,331 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:21:38,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:21:38,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:21:38,453 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:21:38,458 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:21:38,504 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-12 02:21:38,504 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:21:38,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:21:38,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098760623] [2023-11-12 02:21:38,505 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:21:38,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148177185] [2023-11-12 02:21:38,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1148177185] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:21:38,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:21:38,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:21:38,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910852302] [2023-11-12 02:21:38,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:21:38,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:21:38,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:21:38,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:21:38,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:21:38,509 INFO L87 Difference]: Start difference. First operand 119 states and 186 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-12 02:21:38,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:21:38,588 INFO L93 Difference]: Finished difference Result 347 states and 546 transitions. [2023-11-12 02:21:38,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:21:38,589 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 103 [2023-11-12 02:21:38,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:21:38,593 INFO L225 Difference]: With dead ends: 347 [2023-11-12 02:21:38,594 INFO L226 Difference]: Without dead ends: 231 [2023-11-12 02:21:38,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:21:38,597 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 84 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:21:38,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 247 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:21:38,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2023-11-12 02:21:38,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 229. [2023-11-12 02:21:38,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 164 states have (on average 1.4390243902439024) internal successors, (236), 164 states have internal predecessors, (236), 60 states have call successors, (60), 4 states have call predecessors, (60), 4 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-12 02:21:38,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 356 transitions. [2023-11-12 02:21:38,642 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 356 transitions. Word has length 103 [2023-11-12 02:21:38,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:21:38,644 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 356 transitions. [2023-11-12 02:21:38,644 INFO L496 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-12 02:21:38,644 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 356 transitions. [2023-11-12 02:21:38,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-12 02:21:38,651 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:21:38,652 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:21:38,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:21:38,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:21:38,859 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:21:38,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:21:38,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1533389258, now seen corresponding path program 1 times [2023-11-12 02:21:38,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:21:38,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098214267] [2023-11-12 02:21:38,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:21:38,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:21:38,915 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:21:38,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1651504102] [2023-11-12 02:21:38,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:21:38,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:21:38,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:21:38,923 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:21:38,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 02:21:39,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:21:39,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:21:39,056 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:21:39,082 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-12 02:21:39,082 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:21:39,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:21:39,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098214267] [2023-11-12 02:21:39,083 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:21:39,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651504102] [2023-11-12 02:21:39,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651504102] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:21:39,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:21:39,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:21:39,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773522045] [2023-11-12 02:21:39,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:21:39,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:21:39,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:21:39,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:21:39,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:21:39,086 INFO L87 Difference]: Start difference. First operand 229 states and 356 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-12 02:21:39,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:21:39,149 INFO L93 Difference]: Finished difference Result 557 states and 866 transitions. [2023-11-12 02:21:39,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:21:39,150 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 103 [2023-11-12 02:21:39,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:21:39,154 INFO L225 Difference]: With dead ends: 557 [2023-11-12 02:21:39,154 INFO L226 Difference]: Without dead ends: 331 [2023-11-12 02:21:39,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:21:39,158 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 39 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:21:39,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 205 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:21:39,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2023-11-12 02:21:39,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 253. [2023-11-12 02:21:39,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 188 states have (on average 1.446808510638298) internal successors, (272), 188 states have internal predecessors, (272), 60 states have call successors, (60), 4 states have call predecessors, (60), 4 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-12 02:21:39,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 392 transitions. [2023-11-12 02:21:39,193 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 392 transitions. Word has length 103 [2023-11-12 02:21:39,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:21:39,194 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 392 transitions. [2023-11-12 02:21:39,195 INFO L496 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-12 02:21:39,195 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 392 transitions. [2023-11-12 02:21:39,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-12 02:21:39,197 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:21:39,197 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:21:39,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:21:39,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:21:39,404 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:21:39,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:21:39,405 INFO L85 PathProgramCache]: Analyzing trace with hash 471665351, now seen corresponding path program 1 times [2023-11-12 02:21:39,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:21:39,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83814854] [2023-11-12 02:21:39,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:21:39,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:21:39,467 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:21:39,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1425686106] [2023-11-12 02:21:39,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:21:39,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:21:39,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:21:39,479 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:21:39,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-12 02:21:39,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:21:39,659 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-12 02:21:39,663 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:21:40,251 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 287 proven. 21 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-12 02:21:40,251 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:21:41,531 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 87 proven. 30 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2023-11-12 02:21:41,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:21:41,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83814854] [2023-11-12 02:21:41,533 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:21:41,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425686106] [2023-11-12 02:21:41,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1425686106] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:21:41,539 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:21:41,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2023-11-12 02:21:41,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996902399] [2023-11-12 02:21:41,540 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:21:41,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-12 02:21:41,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:21:41,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-12 02:21:41,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=336, Unknown=0, NotChecked=0, Total=462 [2023-11-12 02:21:41,550 INFO L87 Difference]: Start difference. First operand 253 states and 392 transitions. Second operand has 22 states, 22 states have (on average 3.1363636363636362) internal successors, (69), 22 states have internal predecessors, (69), 5 states have call successors, (23), 3 states have call predecessors, (23), 9 states have return successors, (24), 7 states have call predecessors, (24), 5 states have call successors, (24) [2023-11-12 02:21:42,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:21:42,490 INFO L93 Difference]: Finished difference Result 413 states and 619 transitions. [2023-11-12 02:21:42,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-12 02:21:42,491 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.1363636363636362) internal successors, (69), 22 states have internal predecessors, (69), 5 states have call successors, (23), 3 states have call predecessors, (23), 9 states have return successors, (24), 7 states have call predecessors, (24), 5 states have call successors, (24) Word has length 104 [2023-11-12 02:21:42,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:21:42,495 INFO L225 Difference]: With dead ends: 413 [2023-11-12 02:21:42,495 INFO L226 Difference]: Without dead ends: 163 [2023-11-12 02:21:42,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=437, Invalid=969, Unknown=0, NotChecked=0, Total=1406 [2023-11-12 02:21:42,499 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 201 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-12 02:21:42,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 211 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-12 02:21:42,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2023-11-12 02:21:42,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 155. [2023-11-12 02:21:42,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 116 states have (on average 1.3620689655172413) internal successors, (158), 116 states have internal predecessors, (158), 30 states have call successors, (30), 8 states have call predecessors, (30), 8 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-12 02:21:42,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 218 transitions. [2023-11-12 02:21:42,551 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 218 transitions. Word has length 104 [2023-11-12 02:21:42,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:21:42,553 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 218 transitions. [2023-11-12 02:21:42,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.1363636363636362) internal successors, (69), 22 states have internal predecessors, (69), 5 states have call successors, (23), 3 states have call predecessors, (23), 9 states have return successors, (24), 7 states have call predecessors, (24), 5 states have call successors, (24) [2023-11-12 02:21:42,554 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 218 transitions. [2023-11-12 02:21:42,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-12 02:21:42,555 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:21:42,555 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:21:42,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-12 02:21:42,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:21:42,762 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:21:42,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:21:42,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1381999214, now seen corresponding path program 1 times [2023-11-12 02:21:42,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:21:42,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798971467] [2023-11-12 02:21:42,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:21:42,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:21:42,811 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:21:42,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [195522989] [2023-11-12 02:21:42,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:21:42,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:21:42,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:21:42,813 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:21:42,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-12 02:21:42,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:21:42,992 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-12 02:21:42,997 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:21:43,541 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 248 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-11-12 02:21:43,541 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:21:43,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:21:43,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798971467] [2023-11-12 02:21:43,541 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:21:43,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195522989] [2023-11-12 02:21:43,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [195522989] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:21:43,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:21:43,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:21:43,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154058892] [2023-11-12 02:21:43,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:21:43,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:21:43,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:21:43,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:21:43,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:21:43,544 INFO L87 Difference]: Start difference. First operand 155 states and 218 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-12 02:21:43,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:21:43,935 INFO L93 Difference]: Finished difference Result 612 states and 865 transitions. [2023-11-12 02:21:43,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:21:43,936 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 104 [2023-11-12 02:21:43,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:21:43,940 INFO L225 Difference]: With dead ends: 612 [2023-11-12 02:21:43,940 INFO L226 Difference]: Without dead ends: 460 [2023-11-12 02:21:43,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:21:43,944 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 210 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:21:43,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 295 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 02:21:43,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2023-11-12 02:21:44,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 452. [2023-11-12 02:21:44,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 337 states have (on average 1.370919881305638) internal successors, (462), 337 states have internal predecessors, (462), 90 states have call successors, (90), 24 states have call predecessors, (90), 24 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2023-11-12 02:21:44,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 642 transitions. [2023-11-12 02:21:44,036 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 642 transitions. Word has length 104 [2023-11-12 02:21:44,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:21:44,037 INFO L495 AbstractCegarLoop]: Abstraction has 452 states and 642 transitions. [2023-11-12 02:21:44,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-12 02:21:44,038 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 642 transitions. [2023-11-12 02:21:44,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-12 02:21:44,039 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:21:44,039 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:21:44,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-12 02:21:44,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:21:44,246 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:21:44,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:21:44,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1817751881, now seen corresponding path program 1 times [2023-11-12 02:21:44,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:21:44,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455345817] [2023-11-12 02:21:44,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:21:44,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:21:44,286 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:21:44,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1590286561] [2023-11-12 02:21:44,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:21:44,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:21:44,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:21:44,294 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:21:44,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-12 02:21:44,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:21:44,423 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:21:44,429 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:21:44,545 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-12 02:21:44,545 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:21:44,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:21:44,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455345817] [2023-11-12 02:21:44,546 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:21:44,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1590286561] [2023-11-12 02:21:44,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1590286561] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:21:44,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:21:44,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:21:44,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802886003] [2023-11-12 02:21:44,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:21:44,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:21:44,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:21:44,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:21:44,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:21:44,548 INFO L87 Difference]: Start difference. First operand 452 states and 642 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-12 02:21:44,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:21:44,791 INFO L93 Difference]: Finished difference Result 908 states and 1297 transitions. [2023-11-12 02:21:44,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:21:44,794 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 104 [2023-11-12 02:21:44,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:21:44,801 INFO L225 Difference]: With dead ends: 908 [2023-11-12 02:21:44,801 INFO L226 Difference]: Without dead ends: 682 [2023-11-12 02:21:44,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:21:44,804 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 105 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:21:44,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 439 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:21:44,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2023-11-12 02:21:44,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 514. [2023-11-12 02:21:44,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 399 states have (on average 1.3959899749373434) internal successors, (557), 399 states have internal predecessors, (557), 90 states have call successors, (90), 24 states have call predecessors, (90), 24 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2023-11-12 02:21:44,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 737 transitions. [2023-11-12 02:21:44,888 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 737 transitions. Word has length 104 [2023-11-12 02:21:44,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:21:44,889 INFO L495 AbstractCegarLoop]: Abstraction has 514 states and 737 transitions. [2023-11-12 02:21:44,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-12 02:21:44,890 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 737 transitions. [2023-11-12 02:21:44,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-12 02:21:44,891 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:21:44,892 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:21:44,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-12 02:21:45,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:21:45,100 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:21:45,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:21:45,100 INFO L85 PathProgramCache]: Analyzing trace with hash 795774645, now seen corresponding path program 1 times [2023-11-12 02:21:45,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:21:45,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669409739] [2023-11-12 02:21:45,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:21:45,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:21:45,169 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:21:45,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1388507807] [2023-11-12 02:21:45,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:21:45,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:21:45,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:21:45,176 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:21:45,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-12 02:21:45,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:21:45,408 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:21:45,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:21:45,545 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:21:45,545 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:21:45,546 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 02:21:45,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-12 02:21:45,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:21:45,758 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:21:45,760 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:21:45,847 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-12 02:21:45,848 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short14 could not be translated [2023-11-12 02:21:45,867 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:21:45 BoogieIcfgContainer [2023-11-12 02:21:45,867 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:21:45,868 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:21:45,868 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:21:45,869 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:21:45,869 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:21:36" (3/4) ... [2023-11-12 02:21:45,871 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 02:21:45,873 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:21:45,873 INFO L158 Benchmark]: Toolchain (without parser) took 10763.34ms. Allocated memory was 134.2MB in the beginning and 207.6MB in the end (delta: 73.4MB). Free memory was 87.8MB in the beginning and 151.9MB in the end (delta: -64.1MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2023-11-12 02:21:45,874 INFO L158 Benchmark]: CDTParser took 0.56ms. Allocated memory is still 134.2MB. Free memory is still 109.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:21:45,874 INFO L158 Benchmark]: CACSL2BoogieTranslator took 409.91ms. Allocated memory is still 134.2MB. Free memory was 87.3MB in the beginning and 74.2MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 02:21:45,875 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.93ms. Allocated memory is still 134.2MB. Free memory was 74.2MB in the beginning and 70.5MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 02:21:45,875 INFO L158 Benchmark]: Boogie Preprocessor took 45.63ms. Allocated memory is still 134.2MB. Free memory was 70.5MB in the beginning and 68.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:21:45,875 INFO L158 Benchmark]: RCFGBuilder took 660.18ms. Allocated memory was 134.2MB in the beginning and 172.0MB in the end (delta: 37.7MB). Free memory was 68.4MB in the beginning and 129.5MB in the end (delta: -61.1MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2023-11-12 02:21:45,876 INFO L158 Benchmark]: TraceAbstraction took 9561.85ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 129.5MB in the beginning and 151.9MB in the end (delta: -22.4MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2023-11-12 02:21:45,876 INFO L158 Benchmark]: Witness Printer took 4.74ms. Allocated memory is still 207.6MB. Free memory is still 151.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:21:45,878 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56ms. Allocated memory is still 134.2MB. Free memory is still 109.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 409.91ms. Allocated memory is still 134.2MB. Free memory was 87.3MB in the beginning and 74.2MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.93ms. Allocated memory is still 134.2MB. Free memory was 74.2MB in the beginning and 70.5MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.63ms. Allocated memory is still 134.2MB. Free memory was 70.5MB in the beginning and 68.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 660.18ms. Allocated memory was 134.2MB in the beginning and 172.0MB in the end (delta: 37.7MB). Free memory was 68.4MB in the beginning and 129.5MB in the end (delta: -61.1MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * TraceAbstraction took 9561.85ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 129.5MB in the beginning and 151.9MB in the end (delta: -22.4MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. * Witness Printer took 4.74ms. Allocated memory is still 207.6MB. Free memory is still 151.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short14 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 someBinaryDOUBLEComparisonOperation at line 114, overapproximation of bitwiseOr at line 78. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = -64; [L23] unsigned char var_1_3 = 1; [L24] signed char var_1_5 = -32; [L25] unsigned short int var_1_6 = 256; [L26] unsigned long int var_1_10 = 256; [L27] double var_1_12 = 8.2; [L28] signed char var_1_13 = 16; [L29] signed char var_1_14 = 10; [L30] double var_1_15 = 199.125; [L31] double var_1_16 = 9.4; [L32] double var_1_17 = 9999999999999.6; [L33] unsigned char var_1_20 = 32; [L34] unsigned char var_1_21 = 128; [L35] unsigned char var_1_22 = 64; [L36] unsigned long int var_1_23 = 64; [L37] unsigned long int last_1_var_1_10 = 256; [L38] unsigned char last_1_var_1_20 = 32; VAL [isInitial=0, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=16, var_1_14=10, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=1, var_1_5=-32, var_1_6=256] [L118] isInitial = 1 [L119] FCALL initially() [L120] COND TRUE 1 [L121] CALL updateLastVariables() [L110] last_1_var_1_10 = var_1_10 [L111] last_1_var_1_20 = var_1_20 VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=16, var_1_14=10, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=1, var_1_5=-32, var_1_6=256] [L121] RET updateLastVariables() [L122] CALL updateVariables() [L85] var_1_3 = __VERIFIER_nondet_uchar() [L86] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=16, var_1_14=10, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_5=-32, var_1_6=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=16, var_1_14=10, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_5=-32, var_1_6=256] [L86] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=16, var_1_14=10, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_5=-32, var_1_6=256] [L87] CALL assume_abort_if_not(var_1_3 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=16, var_1_14=10, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=-32, var_1_6=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=16, var_1_14=10, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=-32, var_1_6=256] [L87] RET assume_abort_if_not(var_1_3 <= 1) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=16, var_1_14=10, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=-32, var_1_6=256] [L88] var_1_5 = __VERIFIER_nondet_char() [L89] CALL assume_abort_if_not(var_1_5 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=16, var_1_14=10, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=16, var_1_14=10, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L89] RET assume_abort_if_not(var_1_5 >= -127) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=16, var_1_14=10, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L90] CALL assume_abort_if_not(var_1_5 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=16, var_1_14=10, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=16, var_1_14=10, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L90] RET assume_abort_if_not(var_1_5 <= 126) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=16, var_1_14=10, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L91] var_1_13 = __VERIFIER_nondet_char() [L92] CALL assume_abort_if_not(var_1_13 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=126, var_1_14=10, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=126, var_1_14=10, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L92] RET assume_abort_if_not(var_1_13 >= -1) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=126, var_1_14=10, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L93] CALL assume_abort_if_not(var_1_13 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=126, var_1_14=10, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=126, var_1_14=10, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L93] RET assume_abort_if_not(var_1_13 <= 127) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=126, var_1_14=10, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L94] var_1_14 = __VERIFIER_nondet_char() [L95] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=126, var_1_14=119, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=126, var_1_14=119, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L95] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=126, var_1_14=119, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L96] CALL assume_abort_if_not(var_1_14 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=126, var_1_14=119, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=126, var_1_14=119, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L96] RET assume_abort_if_not(var_1_14 <= 127) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=126, var_1_14=119, var_1_15=1593/8, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L97] var_1_15 = __VERIFIER_nondet_double() [L98] CALL assume_abort_if_not((var_1_15 >= -922337.2036854776000e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854776000e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=126, var_1_14=119, var_1_15=2, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=126, var_1_14=119, var_1_15=2, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L98] RET assume_abort_if_not((var_1_15 >= -922337.2036854776000e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854776000e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=126, var_1_14=119, var_1_15=2, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L99] CALL assume_abort_if_not(var_1_15 != 0.0F) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=126, var_1_14=119, var_1_15=2, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=126, var_1_14=119, var_1_15=2, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L99] RET assume_abort_if_not(var_1_15 != 0.0F) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=126, var_1_14=119, var_1_15=2, var_1_16=47/5, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L100] var_1_16 = __VERIFIER_nondet_double() [L101] CALL assume_abort_if_not((var_1_16 >= -922337.2036854765600e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=126, var_1_14=119, var_1_15=2, var_1_16=3, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=126, var_1_14=119, var_1_15=2, var_1_16=3, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L101] RET assume_abort_if_not((var_1_16 >= -922337.2036854765600e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=126, var_1_14=119, var_1_15=2, var_1_16=3, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=128, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L102] var_1_21 = __VERIFIER_nondet_uchar() [L103] CALL assume_abort_if_not(var_1_21 >= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=126, var_1_14=119, var_1_15=2, var_1_16=3, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=127, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=126, var_1_14=119, var_1_15=2, var_1_16=3, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=127, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L103] RET assume_abort_if_not(var_1_21 >= 127) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=126, var_1_14=119, var_1_15=2, var_1_16=3, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=127, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L104] CALL assume_abort_if_not(var_1_21 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=126, var_1_14=119, var_1_15=2, var_1_16=3, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=127, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=126, var_1_14=119, var_1_15=2, var_1_16=3, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=127, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L104] RET assume_abort_if_not(var_1_21 <= 254) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=126, var_1_14=119, var_1_15=2, var_1_16=3, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=127, var_1_22=64, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L105] var_1_22 = __VERIFIER_nondet_uchar() [L106] CALL assume_abort_if_not(var_1_22 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=126, var_1_14=119, var_1_15=2, var_1_16=3, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=127, var_1_22=0, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=126, var_1_14=119, var_1_15=2, var_1_16=3, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=127, var_1_22=0, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L106] RET assume_abort_if_not(var_1_22 >= 0) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=126, var_1_14=119, var_1_15=2, var_1_16=3, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=127, var_1_22=0, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L107] CALL assume_abort_if_not(var_1_22 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=126, var_1_14=119, var_1_15=2, var_1_16=3, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=127, var_1_22=0, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=126, var_1_14=119, var_1_15=2, var_1_16=3, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=127, var_1_22=0, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L107] RET assume_abort_if_not(var_1_22 <= 127) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=126, var_1_14=119, var_1_15=2, var_1_16=3, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=127, var_1_22=0, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L122] RET updateVariables() [L123] CALL step() [L42] COND FALSE !(\read(var_1_3)) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=126, var_1_14=119, var_1_15=2, var_1_16=3, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=32, var_1_21=127, var_1_22=0, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L47] COND TRUE (var_1_5 * var_1_13) > last_1_var_1_10 [L48] var_1_20 = ((((((((var_1_21 - var_1_14)) > ((var_1_22 + 8))) ? ((var_1_21 - var_1_14)) : ((var_1_22 + 8)))) < 0 ) ? -(((((var_1_21 - var_1_14)) > ((var_1_22 + 8))) ? ((var_1_21 - var_1_14)) : ((var_1_22 + 8)))) : (((((var_1_21 - var_1_14)) > ((var_1_22 + 8))) ? ((var_1_21 - var_1_14)) : ((var_1_22 + 8)))))) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=126, var_1_14=119, var_1_15=2, var_1_16=3, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=8, var_1_21=127, var_1_22=0, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L50] COND FALSE !((((((var_1_14 - var_1_20)) < (var_1_5)) ? ((var_1_14 - var_1_20)) : (var_1_5))) < var_1_20) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=126, var_1_14=119, var_1_15=2, var_1_16=3, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=8, var_1_21=127, var_1_22=0, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L55] COND FALSE !(99999.8f < var_1_17) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=41/5, var_1_13=126, var_1_14=119, var_1_15=2, var_1_16=3, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=8, var_1_21=127, var_1_22=0, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L66] COND FALSE !((var_1_17 <= var_1_17) || var_1_3) [L71] var_1_12 = var_1_16 VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=3, var_1_13=126, var_1_14=119, var_1_15=2, var_1_16=3, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=8, var_1_21=127, var_1_22=0, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L73] COND FALSE !((var_1_17 + var_1_12) <= var_1_17) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=3, var_1_13=126, var_1_14=119, var_1_15=2, var_1_16=3, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=8, var_1_21=127, var_1_22=0, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L78] EXPR var_1_6 ^ var_1_20 VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=256, var_1_12=3, var_1_13=126, var_1_14=119, var_1_15=2, var_1_16=3, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=8, var_1_21=127, var_1_22=0, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L78] COND TRUE var_1_20 <= ((var_1_6 ^ var_1_20) + var_1_23) [L79] COND TRUE var_1_12 == var_1_12 [L80] var_1_10 = 0u VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=0, var_1_12=3, var_1_13=126, var_1_14=119, var_1_15=2, var_1_16=3, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=8, var_1_21=127, var_1_22=0, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L123] RET step() [L124] CALL, EXPR property() [L114] EXPR (((99999.8f < var_1_17) ? ((! var_1_3) ? ((var_1_17 >= (var_1_17 / 2.5f)) ? (var_1_3 ? (var_1_1 == ((signed char) var_1_5)) : (var_1_1 == ((signed char) var_1_5))) : 1) : 1) : 1) && (var_1_3 ? (((last_1_var_1_10 + (var_1_5 + last_1_var_1_20)) >= last_1_var_1_20) ? (var_1_6 == ((unsigned short int) last_1_var_1_20)) : 1) : 1)) && ((var_1_20 <= ((var_1_6 ^ var_1_20) + var_1_23)) ? ((var_1_12 == var_1_12) ? (var_1_10 == ((unsigned long int) 0u)) : 1) : 1) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=0, var_1_12=3, var_1_13=126, var_1_14=119, var_1_15=2, var_1_16=3, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=8, var_1_21=127, var_1_22=0, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L114-L115] return (((((((99999.8f < var_1_17) ? ((! var_1_3) ? ((var_1_17 >= (var_1_17 / 2.5f)) ? (var_1_3 ? (var_1_1 == ((signed char) var_1_5)) : (var_1_1 == ((signed char) var_1_5))) : 1) : 1) : 1) && (var_1_3 ? (((last_1_var_1_10 + (var_1_5 + last_1_var_1_20)) >= last_1_var_1_20) ? (var_1_6 == ((unsigned short int) last_1_var_1_20)) : 1) : 1)) && ((var_1_20 <= ((var_1_6 ^ var_1_20) + var_1_23)) ? ((var_1_12 == var_1_12) ? (var_1_10 == ((unsigned long int) 0u)) : 1) : 1)) && (((var_1_17 <= var_1_17) || var_1_3) ? (((var_1_17 / var_1_15) > 25.25) ? (var_1_12 == ((double) 128.5)) : 1) : (var_1_12 == ((double) var_1_16)))) && (((((((var_1_14 - var_1_20)) < (var_1_5)) ? ((var_1_14 - var_1_20)) : (var_1_5))) < var_1_20) ? (var_1_3 ? (var_1_17 == ((double) 128.1)) : 1) : 1)) && (((var_1_5 * var_1_13) > last_1_var_1_10) ? (var_1_20 == ((unsigned char) ((((((((var_1_21 - var_1_14)) > ((var_1_22 + 8))) ? ((var_1_21 - var_1_14)) : ((var_1_22 + 8)))) < 0 ) ? -(((((var_1_21 - var_1_14)) > ((var_1_22 + 8))) ? ((var_1_21 - var_1_14)) : ((var_1_22 + 8)))) : (((((var_1_21 - var_1_14)) > ((var_1_22 + 8))) ? ((var_1_21 - var_1_14)) : ((var_1_22 + 8)))))))) : 1)) && (((var_1_17 + var_1_12) <= var_1_17) ? ((var_1_6 >= var_1_6) ? (var_1_23 == ((unsigned long int) var_1_20)) : 1) : 1) ; [L124] RET, EXPR property() [L124] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=0, var_1_12=3, var_1_13=126, var_1_14=119, var_1_15=2, var_1_16=3, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=8, var_1_21=127, var_1_22=0, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=256, last_1_var_1_20=32, var_1_10=0, var_1_12=3, var_1_13=126, var_1_14=119, var_1_15=2, var_1_16=3, var_1_17=49999999999998/5, var_1_1=-64, var_1_20=8, var_1_21=127, var_1_22=0, var_1_23=64, var_1_3=0, var_1_5=9, var_1_6=256] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 66 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.4s, OverallIterations: 8, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 679 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 679 mSDsluCounter, 1667 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 921 mSDsCounter, 146 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 543 IncrementalHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 146 mSolverCounterUnsat, 746 mSDtfsCounter, 543 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 841 GetRequests, 788 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=514occurred in iteration=7, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 7 MinimizatonAttempts, 266 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 929 NumberOfCodeBlocks, 929 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 818 ConstructedInterpolants, 0 QuantifiedInterpolants, 3109 SizeOfPredicates, 23 NumberOfNonLiveVariables, 1790 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 3309/3360 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-12 02:21:45,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl --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 3d47f2d590788b5b215b1242024ad3fa5a12acabdbb9cad16a442da1352e0490 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:21:48,597 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:21:48,731 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-12 02:21:48,738 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:21:48,739 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:21:48,769 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:21:48,770 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:21:48,771 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:21:48,772 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:21:48,778 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:21:48,779 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:21:48,780 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:21:48,780 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:21:48,782 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:21:48,783 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:21:48,784 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:21:48,784 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:21:48,785 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:21:48,785 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:21:48,786 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:21:48,786 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:21:48,787 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:21:48,787 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 02:21:48,788 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 02:21:48,788 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:21:48,789 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:21:48,789 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:21:48,790 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:21:48,790 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:21:48,791 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:21:48,792 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:21:48,792 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:21:48,793 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:21:48,793 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:21:48,793 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-12 02:21:48,794 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 02:21:48,794 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:21:48,794 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:21:48,794 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:21:48,796 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:21:48,796 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-12 02:21:48,796 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:21:48,796 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d47f2d590788b5b215b1242024ad3fa5a12acabdbb9cad16a442da1352e0490 [2023-11-12 02:21:49,270 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:21:49,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:21:49,306 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:21:49,307 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:21:49,308 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:21:49,310 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-3.i [2023-11-12 02:21:52,553 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:21:52,929 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:21:52,930 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-3.i [2023-11-12 02:21:52,946 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/data/18cf123be/ac77a65632c24835816e11f4d2e8d957/FLAG16716c4b5 [2023-11-12 02:21:52,966 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/data/18cf123be/ac77a65632c24835816e11f4d2e8d957 [2023-11-12 02:21:52,972 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:21:52,974 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:21:52,980 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:21:52,981 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:21:52,986 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:21:52,987 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:21:52" (1/1) ... [2023-11-12 02:21:52,988 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49379208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:52, skipping insertion in model container [2023-11-12 02:21:52,988 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:21:52" (1/1) ... [2023-11-12 02:21:53,043 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:21:53,248 WARN L240 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_54a14bc2-0aa4-4cb2-b681-23a37e912327/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-3.i[918,931] [2023-11-12 02:21:53,327 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:21:53,347 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:21:53,361 WARN L240 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_54a14bc2-0aa4-4cb2-b681-23a37e912327/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-3.i[918,931] [2023-11-12 02:21:53,388 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:21:53,407 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:21:53,408 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:53 WrapperNode [2023-11-12 02:21:53,408 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:21:53,409 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:21:53,409 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:21:53,410 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:21:53,417 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:53" (1/1) ... [2023-11-12 02:21:53,433 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:53" (1/1) ... [2023-11-12 02:21:53,478 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 116 [2023-11-12 02:21:53,479 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:21:53,480 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:21:53,480 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:21:53,480 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:21:53,491 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:53" (1/1) ... [2023-11-12 02:21:53,491 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:53" (1/1) ... [2023-11-12 02:21:53,496 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:53" (1/1) ... [2023-11-12 02:21:53,497 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:53" (1/1) ... [2023-11-12 02:21:53,509 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:53" (1/1) ... [2023-11-12 02:21:53,513 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:53" (1/1) ... [2023-11-12 02:21:53,517 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:53" (1/1) ... [2023-11-12 02:21:53,519 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:53" (1/1) ... [2023-11-12 02:21:53,524 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:21:53,525 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:21:53,526 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:21:53,526 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:21:53,527 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:53" (1/1) ... [2023-11-12 02:21:53,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:21:53,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:21:53,567 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:21:53,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:21:53,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:21:53,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 02:21:53,654 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:21:53,654 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:21:53,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:21:53,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:21:53,747 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:21:53,749 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:22:04,709 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:22:04,719 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:22:04,719 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:22:04,722 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:22:04 BoogieIcfgContainer [2023-11-12 02:22:04,722 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:22:04,725 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:22:04,725 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:22:04,738 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:22:04,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:21:52" (1/3) ... [2023-11-12 02:22:04,740 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c2ba06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:22:04, skipping insertion in model container [2023-11-12 02:22:04,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:53" (2/3) ... [2023-11-12 02:22:04,740 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c2ba06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:22:04, skipping insertion in model container [2023-11-12 02:22:04,741 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:22:04" (3/3) ... [2023-11-12 02:22:04,742 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_dependencies_file-3.i [2023-11-12 02:22:04,760 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:22:04,760 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:22:04,817 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:22:04,824 INFO L357 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, mHoare=true, 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;@5879aa23, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:22:04,825 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:22:04,830 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 39 states have (on average 1.5128205128205128) internal successors, (59), 40 states have internal predecessors, (59), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 02:22:04,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-12 02:22:04,844 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:04,845 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:22:04,846 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:22:04,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:04,852 INFO L85 PathProgramCache]: Analyzing trace with hash -359247469, now seen corresponding path program 1 times [2023-11-12 02:22:04,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:22:04,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [290810661] [2023-11-12 02:22:04,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:04,869 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 [2023-11-12 02:22:04,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:22:04,874 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:22:04,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:22:06,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:06,294 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 02:22:06,309 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:22:06,379 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2023-11-12 02:22:06,379 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:22:06,380 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:22:06,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [290810661] [2023-11-12 02:22:06,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [290810661] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:06,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:22:06,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:22:06,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017320503] [2023-11-12 02:22:06,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:06,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:22:06,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:22:06,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:22:06,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:22:06,424 INFO L87 Difference]: Start difference. First operand has 57 states, 39 states have (on average 1.5128205128205128) internal successors, (59), 40 states have internal predecessors, (59), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-12 02:22:06,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:06,454 INFO L93 Difference]: Finished difference Result 107 states and 187 transitions. [2023-11-12 02:22:06,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:22:06,456 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 99 [2023-11-12 02:22:06,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:06,464 INFO L225 Difference]: With dead ends: 107 [2023-11-12 02:22:06,464 INFO L226 Difference]: Without dead ends: 53 [2023-11-12 02:22:06,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:22:06,471 INFO L413 NwaCegarLoop]: 81 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, 81 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 [2023-11-12 02:22:06,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:22:06,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-11-12 02:22:06,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2023-11-12 02:22:06,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 36 states have internal predecessors, (51), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 02:22:06,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 81 transitions. [2023-11-12 02:22:06,534 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 81 transitions. Word has length 99 [2023-11-12 02:22:06,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:06,535 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 81 transitions. [2023-11-12 02:22:06,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-12 02:22:06,536 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 81 transitions. [2023-11-12 02:22:06,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-12 02:22:06,543 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:06,543 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:22:06,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:22:06,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:22:06,768 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:22:06,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:06,769 INFO L85 PathProgramCache]: Analyzing trace with hash -2082774571, now seen corresponding path program 1 times [2023-11-12 02:22:06,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:22:06,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [357238006] [2023-11-12 02:22:06,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:06,771 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 [2023-11-12 02:22:06,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:22:06,773 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:22:06,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54a14bc2-0aa4-4cb2-b681-23a37e912327/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:22:08,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:08,102 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:22:08,109 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:22:11,569 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-12 02:22:11,569 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:22:11,570 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:22:11,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [357238006] [2023-11-12 02:22:11,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [357238006] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:11,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:22:11,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:22:11,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621815435] [2023-11-12 02:22:11,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:11,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:22:11,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:22:11,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:22:11,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:22:11,576 INFO L87 Difference]: Start difference. First operand 53 states and 81 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-12 02:22:16,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.82s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 02:22:19,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.95s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 02:22:21,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.50s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 02:22:22,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 02:22:25,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.83s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 02:22:28,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 02:22:33,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.44s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []