./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-39.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b 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_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-39.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 77e2354f2cb7c50edc4d757661e3378145df169c487a524446d0f0165ad173f1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:52:55,174 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:52:55,310 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:52:55,319 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:52:55,320 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:52:55,369 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:52:55,370 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:52:55,371 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:52:55,372 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:52:55,377 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:52:55,378 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:52:55,379 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:52:55,379 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:52:55,382 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:52:55,383 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:52:55,383 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:52:55,384 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:52:55,384 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:52:55,385 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:52:55,385 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:52:55,386 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:52:55,386 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:52:55,387 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:52:55,387 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:52:55,387 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:52:55,388 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:52:55,389 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:52:55,389 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:52:55,390 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:52:55,390 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:52:55,392 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:52:55,392 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:52:55,392 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:52:55,392 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:52:55,393 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:52:55,393 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:52:55,393 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:52:55,393 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:52:55,393 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:52:55,394 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_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77e2354f2cb7c50edc4d757661e3378145df169c487a524446d0f0165ad173f1 [2023-11-06 22:52:55,751 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:52:55,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:52:55,786 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:52:55,787 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:52:55,788 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:52:55,790 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-39.i [2023-11-06 22:52:59,028 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:52:59,284 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:52:59,284 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-39.i [2023-11-06 22:52:59,296 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/data/b8ff9e855/5da82cfad0984980bbe3a216b23ec4f6/FLAG2441b2aca [2023-11-06 22:52:59,315 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/data/b8ff9e855/5da82cfad0984980bbe3a216b23ec4f6 [2023-11-06 22:52:59,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:52:59,321 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:52:59,322 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:52:59,323 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:52:59,330 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:52:59,331 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:52:59" (1/1) ... [2023-11-06 22:52:59,332 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@592fc3b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:59, skipping insertion in model container [2023-11-06 22:52:59,333 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:52:59" (1/1) ... [2023-11-06 22:52:59,364 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:52:59,568 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_29d45552-a337-457a-ab5a-ff2ec921c523/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-39.i[916,929] [2023-11-06 22:52:59,618 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:52:59,632 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:52:59,646 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_29d45552-a337-457a-ab5a-ff2ec921c523/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-39.i[916,929] [2023-11-06 22:52:59,671 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:52:59,689 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:52:59,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:59 WrapperNode [2023-11-06 22:52:59,690 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:52:59,691 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:52:59,691 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:52:59,692 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:52:59,705 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:59" (1/1) ... [2023-11-06 22:52:59,715 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:59" (1/1) ... [2023-11-06 22:52:59,762 INFO L138 Inliner]: procedures = 26, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 125 [2023-11-06 22:52:59,763 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:52:59,764 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:52:59,764 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:52:59,764 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:52:59,774 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:59" (1/1) ... [2023-11-06 22:52:59,774 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:59" (1/1) ... [2023-11-06 22:52:59,778 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:59" (1/1) ... [2023-11-06 22:52:59,778 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:59" (1/1) ... [2023-11-06 22:52:59,784 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:59" (1/1) ... [2023-11-06 22:52:59,789 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:59" (1/1) ... [2023-11-06 22:52:59,791 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:59" (1/1) ... [2023-11-06 22:52:59,793 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:59" (1/1) ... [2023-11-06 22:52:59,796 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:52:59,797 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:52:59,797 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:52:59,798 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:52:59,799 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:59" (1/1) ... [2023-11-06 22:52:59,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:52:59,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:52:59,840 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:52:59,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:52:59,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:52:59,893 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:52:59,893 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:52:59,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:52:59,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:52:59,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:52:59,985 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:52:59,987 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:53:00,302 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:53:00,310 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:53:00,310 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:53:00,312 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:53:00 BoogieIcfgContainer [2023-11-06 22:53:00,313 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:53:00,315 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:53:00,316 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:53:00,319 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:53:00,320 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:52:59" (1/3) ... [2023-11-06 22:53:00,320 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27eaaa43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:53:00, skipping insertion in model container [2023-11-06 22:53:00,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:59" (2/3) ... [2023-11-06 22:53:00,321 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27eaaa43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:53:00, skipping insertion in model container [2023-11-06 22:53:00,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:53:00" (3/3) ... [2023-11-06 22:53:00,323 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-39.i [2023-11-06 22:53:00,345 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:53:00,346 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:53:00,423 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:53:00,431 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=LoopsAndPotentialCycles, 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;@4816326, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:53:00,432 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:53:00,437 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 35 states have (on average 1.3428571428571427) internal successors, (47), 36 states have internal predecessors, (47), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 22:53:00,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-06 22:53:00,457 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:53:00,458 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:53:00,459 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:53:00,465 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:53:00,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1586345283, now seen corresponding path program 1 times [2023-11-06 22:53:00,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:53:00,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447318900] [2023-11-06 22:53:00,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:53:00,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:53:00,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:00,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:53:00,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:00,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:53:00,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:00,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:53:00,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:00,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:53:00,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:00,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:53:00,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:01,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:53:01,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:01,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:53:01,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:01,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:53:01,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:01,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:53:01,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:01,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:53:01,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:01,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:53:01,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:01,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:53:01,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:01,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:53:01,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:01,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:53:01,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:01,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-06 22:53:01,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:01,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-06 22:53:01,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:01,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-06 22:53:01,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:01,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-06 22:53:01,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:01,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-06 22:53:01,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:01,086 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-06 22:53:01,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:53:01,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447318900] [2023-11-06 22:53:01,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447318900] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:53:01,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:53:01,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:53:01,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81441517] [2023-11-06 22:53:01,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:53:01,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:53:01,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:53:01,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:53:01,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:53:01,151 INFO L87 Difference]: Start difference. First operand has 57 states, 35 states have (on average 1.3428571428571427) internal successors, (47), 36 states have internal predecessors, (47), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-06 22:53:01,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:53:01,200 INFO L93 Difference]: Finished difference Result 107 states and 183 transitions. [2023-11-06 22:53:01,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:53:01,203 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 119 [2023-11-06 22:53:01,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:53:01,210 INFO L225 Difference]: With dead ends: 107 [2023-11-06 22:53:01,211 INFO L226 Difference]: Without dead ends: 53 [2023-11-06 22:53:01,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:53:01,225 INFO L413 NwaCegarLoop]: 78 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, 78 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 [2023-11-06 22:53:01,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:53:01,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-11-06 22:53:01,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2023-11-06 22:53:01,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 32 states have (on average 1.25) internal successors, (40), 32 states have internal predecessors, (40), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 22:53:01,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 78 transitions. [2023-11-06 22:53:01,276 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 78 transitions. Word has length 119 [2023-11-06 22:53:01,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:53:01,277 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 78 transitions. [2023-11-06 22:53:01,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-06 22:53:01,277 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 78 transitions. [2023-11-06 22:53:01,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-06 22:53:01,281 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:53:01,281 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:53:01,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:53:01,282 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:53:01,282 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:53:01,283 INFO L85 PathProgramCache]: Analyzing trace with hash 444843525, now seen corresponding path program 1 times [2023-11-06 22:53:01,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:53:01,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061990025] [2023-11-06 22:53:01,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:53:01,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:53:01,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:03,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:53:03,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:03,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:53:03,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:03,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:53:03,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:03,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:53:03,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:03,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:53:03,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:03,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:53:03,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:04,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:53:04,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:04,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:53:04,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:04,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:53:04,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:04,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:53:04,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:04,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:53:04,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:04,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:53:04,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:04,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:53:04,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:04,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:53:04,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:04,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-06 22:53:04,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:04,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-06 22:53:04,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:04,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-06 22:53:04,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:04,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-06 22:53:04,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:04,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-06 22:53:04,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:04,051 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-06 22:53:04,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:53:04,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061990025] [2023-11-06 22:53:04,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061990025] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:53:04,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:53:04,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:53:04,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660907854] [2023-11-06 22:53:04,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:53:04,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:53:04,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:53:04,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:53:04,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:53:04,057 INFO L87 Difference]: Start difference. First operand 53 states and 78 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:53:05,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:53:05,071 INFO L93 Difference]: Finished difference Result 121 states and 176 transitions. [2023-11-06 22:53:05,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:53:05,075 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 119 [2023-11-06 22:53:05,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:53:05,078 INFO L225 Difference]: With dead ends: 121 [2023-11-06 22:53:05,078 INFO L226 Difference]: Without dead ends: 71 [2023-11-06 22:53:05,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:53:05,085 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 44 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:53:05,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 221 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 22:53:05,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-11-06 22:53:05,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 59. [2023-11-06 22:53:05,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 38 states have (on average 1.2894736842105263) internal successors, (49), 38 states have internal predecessors, (49), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 22:53:05,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 87 transitions. [2023-11-06 22:53:05,124 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 87 transitions. Word has length 119 [2023-11-06 22:53:05,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:53:05,127 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 87 transitions. [2023-11-06 22:53:05,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:53:05,128 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 87 transitions. [2023-11-06 22:53:05,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-06 22:53:05,140 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:53:05,140 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:53:05,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:53:05,141 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:53:05,141 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:53:05,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1307049971, now seen corresponding path program 1 times [2023-11-06 22:53:05,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:53:05,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177264017] [2023-11-06 22:53:05,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:53:05,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:53:05,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:06,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:53:06,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:06,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:53:06,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:06,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:53:06,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:06,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:53:06,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:06,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:53:06,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:06,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:53:06,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:06,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:53:06,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:06,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:53:06,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:06,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:53:06,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:06,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:53:06,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:06,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:53:06,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:06,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:53:06,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:06,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:53:06,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:06,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:53:06,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:06,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-06 22:53:06,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:06,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-06 22:53:06,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:06,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-06 22:53:06,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:06,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-06 22:53:06,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:06,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-06 22:53:06,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:06,884 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-06 22:53:06,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:53:06,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177264017] [2023-11-06 22:53:06,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177264017] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:53:06,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:53:06,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:53:06,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224208707] [2023-11-06 22:53:06,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:53:06,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:53:06,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:53:06,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:53:06,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:53:06,889 INFO L87 Difference]: Start difference. First operand 59 states and 87 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:53:09,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:53:10,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:53:10,097 INFO L93 Difference]: Finished difference Result 143 states and 205 transitions. [2023-11-06 22:53:10,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:53:10,100 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 120 [2023-11-06 22:53:10,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:53:10,103 INFO L225 Difference]: With dead ends: 143 [2023-11-06 22:53:10,104 INFO L226 Difference]: Without dead ends: 87 [2023-11-06 22:53:10,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:53:10,106 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 68 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:53:10,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 231 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 132 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2023-11-06 22:53:10,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-11-06 22:53:10,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 59. [2023-11-06 22:53:10,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 38 states have (on average 1.2894736842105263) internal successors, (49), 38 states have internal predecessors, (49), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 22:53:10,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 87 transitions. [2023-11-06 22:53:10,126 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 87 transitions. Word has length 120 [2023-11-06 22:53:10,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:53:10,128 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 87 transitions. [2023-11-06 22:53:10,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:53:10,128 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 87 transitions. [2023-11-06 22:53:10,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-06 22:53:10,130 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:53:10,131 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:53:10,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:53:10,131 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:53:10,132 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:53:10,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1700076981, now seen corresponding path program 1 times [2023-11-06 22:53:10,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:53:10,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066008842] [2023-11-06 22:53:10,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:53:10,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:53:10,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:11,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:53:11,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:11,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:53:11,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:11,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:53:11,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:11,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:53:11,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:11,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:53:11,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:11,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:53:11,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:11,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:53:11,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:11,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:53:11,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:11,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:53:11,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:11,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:53:11,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:11,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:53:11,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:11,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:53:11,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:11,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:53:11,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:11,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:53:11,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:11,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-06 22:53:11,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:11,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-06 22:53:11,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:11,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-06 22:53:11,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:11,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-06 22:53:11,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:11,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-06 22:53:11,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:11,697 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-06 22:53:11,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:53:11,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066008842] [2023-11-06 22:53:11,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066008842] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:53:11,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:53:11,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:53:11,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226800055] [2023-11-06 22:53:11,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:53:11,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:53:11,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:53:11,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:53:11,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:53:11,702 INFO L87 Difference]: Start difference. First operand 59 states and 87 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:53:12,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:53:12,706 INFO L93 Difference]: Finished difference Result 143 states and 204 transitions. [2023-11-06 22:53:12,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:53:12,707 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 120 [2023-11-06 22:53:12,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:53:12,709 INFO L225 Difference]: With dead ends: 143 [2023-11-06 22:53:12,710 INFO L226 Difference]: Without dead ends: 87 [2023-11-06 22:53:12,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:53:12,712 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 58 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:53:12,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 252 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-06 22:53:12,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-11-06 22:53:12,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 53. [2023-11-06 22:53:12,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 32 states have (on average 1.21875) internal successors, (39), 32 states have internal predecessors, (39), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 22:53:12,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 77 transitions. [2023-11-06 22:53:12,730 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 77 transitions. Word has length 120 [2023-11-06 22:53:12,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:53:12,731 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 77 transitions. [2023-11-06 22:53:12,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:53:12,732 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 77 transitions. [2023-11-06 22:53:12,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-06 22:53:12,734 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:53:12,734 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:53:12,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:53:12,735 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:53:12,735 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:53:12,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1634425664, now seen corresponding path program 1 times [2023-11-06 22:53:12,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:53:12,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43486379] [2023-11-06 22:53:12,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:53:12,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:53:12,758 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:53:12,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [994346385] [2023-11-06 22:53:12,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:53:12,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:53:12,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:53:12,764 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:53:12,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:53:12,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:12,916 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-06 22:53:12,940 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:53:18,729 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 42 proven. 12 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2023-11-06 22:53:18,731 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:53:26,056 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-06 22:53:26,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:53:26,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43486379] [2023-11-06 22:53:26,057 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:53:26,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994346385] [2023-11-06 22:53:26,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994346385] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-06 22:53:26,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:53:26,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 15 [2023-11-06 22:53:26,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371601312] [2023-11-06 22:53:26,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:53:26,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:53:26,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:53:26,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:53:26,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-11-06 22:53:26,072 INFO L87 Difference]: Start difference. First operand 53 states and 77 transitions. Second operand has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:53:27,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:53:27,049 INFO L93 Difference]: Finished difference Result 118 states and 171 transitions. [2023-11-06 22:53:27,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-06 22:53:27,050 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 121 [2023-11-06 22:53:27,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:53:27,053 INFO L225 Difference]: With dead ends: 118 [2023-11-06 22:53:27,053 INFO L226 Difference]: Without dead ends: 116 [2023-11-06 22:53:27,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=78, Invalid=474, Unknown=0, NotChecked=0, Total=552 [2023-11-06 22:53:27,055 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 56 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:53:27,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 826 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 22:53:27,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-11-06 22:53:27,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 62. [2023-11-06 22:53:27,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 41 states have (on average 1.2195121951219512) internal successors, (50), 41 states have internal predecessors, (50), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 22:53:27,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 88 transitions. [2023-11-06 22:53:27,081 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 88 transitions. Word has length 121 [2023-11-06 22:53:27,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:53:27,082 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 88 transitions. [2023-11-06 22:53:27,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:53:27,083 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 88 transitions. [2023-11-06 22:53:27,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-06 22:53:27,085 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:53:27,085 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:53:27,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-06 22:53:27,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:53:27,292 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:53:27,293 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:53:27,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1577167362, now seen corresponding path program 1 times [2023-11-06 22:53:27,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:53:27,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035618099] [2023-11-06 22:53:27,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:53:27,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:53:27,325 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:53:27,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1017306806] [2023-11-06 22:53:27,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:53:27,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:53:27,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:53:27,328 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:53:27,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:53:27,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:27,440 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:53:27,446 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:53:27,482 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-06 22:53:27,487 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:53:27,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:53:27,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035618099] [2023-11-06 22:53:27,489 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:53:27,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017306806] [2023-11-06 22:53:27,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1017306806] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:53:27,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:53:27,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:53:27,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732685641] [2023-11-06 22:53:27,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:53:27,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:53:27,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:53:27,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:53:27,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:53:27,495 INFO L87 Difference]: Start difference. First operand 62 states and 88 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:53:27,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:53:27,575 INFO L93 Difference]: Finished difference Result 134 states and 188 transitions. [2023-11-06 22:53:27,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:53:27,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 121 [2023-11-06 22:53:27,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:53:27,578 INFO L225 Difference]: With dead ends: 134 [2023-11-06 22:53:27,578 INFO L226 Difference]: Without dead ends: 75 [2023-11-06 22:53:27,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:53:27,585 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 14 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:53:27,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 125 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:53:27,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-11-06 22:53:27,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 66. [2023-11-06 22:53:27,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 45 states have (on average 1.2) internal successors, (54), 45 states have internal predecessors, (54), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 22:53:27,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 92 transitions. [2023-11-06 22:53:27,622 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 92 transitions. Word has length 121 [2023-11-06 22:53:27,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:53:27,624 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 92 transitions. [2023-11-06 22:53:27,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:53:27,625 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 92 transitions. [2023-11-06 22:53:27,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-06 22:53:27,629 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:53:27,630 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:53:27,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:53:27,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-06 22:53:27,838 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:53:27,838 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:53:27,838 INFO L85 PathProgramCache]: Analyzing trace with hash -933361086, now seen corresponding path program 1 times [2023-11-06 22:53:27,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:53:27,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95026299] [2023-11-06 22:53:27,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:53:27,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:53:27,874 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:53:27,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1304679164] [2023-11-06 22:53:27,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:53:27,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:53:27,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:53:27,876 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:53:27,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:53:28,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:28,003 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:53:28,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:53:28,051 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-06 22:53:28,051 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:53:28,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:53:28,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95026299] [2023-11-06 22:53:28,052 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:53:28,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304679164] [2023-11-06 22:53:28,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1304679164] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:53:28,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:53:28,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:53:28,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109314461] [2023-11-06 22:53:28,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:53:28,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:53:28,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:53:28,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:53:28,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:53:28,057 INFO L87 Difference]: Start difference. First operand 66 states and 92 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:53:28,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:53:28,131 INFO L93 Difference]: Finished difference Result 138 states and 190 transitions. [2023-11-06 22:53:28,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:53:28,132 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 121 [2023-11-06 22:53:28,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:53:28,134 INFO L225 Difference]: With dead ends: 138 [2023-11-06 22:53:28,134 INFO L226 Difference]: Without dead ends: 75 [2023-11-06 22:53:28,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:53:28,136 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 12 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:53:28,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 141 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:53:28,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-11-06 22:53:28,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 66. [2023-11-06 22:53:28,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 45 states have (on average 1.1777777777777778) internal successors, (53), 45 states have internal predecessors, (53), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 22:53:28,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 91 transitions. [2023-11-06 22:53:28,156 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 91 transitions. Word has length 121 [2023-11-06 22:53:28,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:53:28,157 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 91 transitions. [2023-11-06 22:53:28,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:53:28,157 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 91 transitions. [2023-11-06 22:53:28,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-06 22:53:28,159 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:53:28,160 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:53:28,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-06 22:53:28,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-06 22:53:28,367 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:53:28,368 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:53:28,368 INFO L85 PathProgramCache]: Analyzing trace with hash -876102784, now seen corresponding path program 1 times [2023-11-06 22:53:28,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:53:28,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623198011] [2023-11-06 22:53:28,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:53:28,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:53:28,405 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:53:28,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1676600168] [2023-11-06 22:53:28,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:53:28,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:53:28,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:53:28,407 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:53:28,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 22:53:28,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:53:28,539 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:53:28,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:53:28,706 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:53:28,706 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:53:28,708 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 22:53:28,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:53:28,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-06 22:53:28,922 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:53:28,927 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:53:29,079 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:53:29 BoogieIcfgContainer [2023-11-06 22:53:29,079 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:53:29,080 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:53:29,080 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:53:29,081 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:53:29,081 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:53:00" (3/4) ... [2023-11-06 22:53:29,084 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:53:29,085 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:53:29,088 INFO L158 Benchmark]: Toolchain (without parser) took 29765.37ms. Allocated memory was 159.4MB in the beginning and 589.3MB in the end (delta: 429.9MB). Free memory was 113.6MB in the beginning and 422.9MB in the end (delta: -309.2MB). Peak memory consumption was 122.4MB. Max. memory is 16.1GB. [2023-11-06 22:53:29,088 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 111.1MB. Free memory is still 67.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:53:29,089 INFO L158 Benchmark]: CACSL2BoogieTranslator took 367.91ms. Allocated memory is still 159.4MB. Free memory was 113.3MB in the beginning and 101.0MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 22:53:29,089 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.85ms. Allocated memory is still 159.4MB. Free memory was 101.0MB in the beginning and 98.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:53:29,090 INFO L158 Benchmark]: Boogie Preprocessor took 32.87ms. Allocated memory is still 159.4MB. Free memory was 98.9MB in the beginning and 97.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:53:29,090 INFO L158 Benchmark]: RCFGBuilder took 515.57ms. Allocated memory is still 159.4MB. Free memory was 97.6MB in the beginning and 82.2MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-06 22:53:29,092 INFO L158 Benchmark]: TraceAbstraction took 28764.19ms. Allocated memory was 159.4MB in the beginning and 589.3MB in the end (delta: 429.9MB). Free memory was 81.4MB in the beginning and 422.9MB in the end (delta: -341.4MB). Peak memory consumption was 91.0MB. Max. memory is 16.1GB. [2023-11-06 22:53:29,093 INFO L158 Benchmark]: Witness Printer took 4.92ms. Allocated memory is still 589.3MB. Free memory is still 422.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:53:29,096 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 111.1MB. Free memory is still 67.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 367.91ms. Allocated memory is still 159.4MB. Free memory was 113.3MB in the beginning and 101.0MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.85ms. Allocated memory is still 159.4MB. Free memory was 101.0MB in the beginning and 98.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.87ms. Allocated memory is still 159.4MB. Free memory was 98.9MB in the beginning and 97.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 515.57ms. Allocated memory is still 159.4MB. Free memory was 97.6MB in the beginning and 82.2MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 28764.19ms. Allocated memory was 159.4MB in the beginning and 589.3MB in the end (delta: 429.9MB). Free memory was 81.4MB in the beginning and 422.9MB in the end (delta: -341.4MB). Peak memory consumption was 91.0MB. Max. memory is 16.1GB. * Witness Printer took 4.92ms. Allocated memory is still 589.3MB. Free memory is still 422.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of shiftLeft at line 92. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = -5; [L23] signed short int var_1_2 = 0; [L24] signed short int var_1_3 = 1000; [L25] signed short int var_1_4 = 10; [L26] signed short int var_1_5 = 32; [L27] signed long int var_1_6 = 5; [L28] signed long int var_1_7 = 1; [L29] signed long int var_1_8 = 7; [L30] signed long int var_1_9 = 1; [L31] signed long int var_1_10 = 32; [L32] unsigned char var_1_11 = 64; [L33] signed long int var_1_12 = 1230482582; VAL [isInitial=0, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1000, var_1_4=10, var_1_5=32, var_1_6=5, var_1_7=1, var_1_8=7, var_1_9=1] [L96] isInitial = 1 [L97] FCALL initially() [L98] COND TRUE 1 [L99] FCALL updateLastVariables() [L100] CALL updateVariables() [L60] var_1_2 = __VERIFIER_nondet_short() [L61] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=1000, var_1_4=10, var_1_5=32, var_1_6=5, var_1_7=1, var_1_8=7, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=1000, var_1_4=10, var_1_5=32, var_1_6=5, var_1_7=1, var_1_8=7, var_1_9=1] [L61] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=1000, var_1_4=10, var_1_5=32, var_1_6=5, var_1_7=1, var_1_8=7, var_1_9=1] [L62] CALL assume_abort_if_not(var_1_2 <= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=1000, var_1_4=10, var_1_5=32, var_1_6=5, var_1_7=1, var_1_8=7, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=1000, var_1_4=10, var_1_5=32, var_1_6=5, var_1_7=1, var_1_8=7, var_1_9=1] [L62] RET assume_abort_if_not(var_1_2 <= 16383) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=1000, var_1_4=10, var_1_5=32, var_1_6=5, var_1_7=1, var_1_8=7, var_1_9=1] [L63] var_1_3 = __VERIFIER_nondet_short() [L64] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=10, var_1_5=32, var_1_6=5, var_1_7=1, var_1_8=7, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=10, var_1_5=32, var_1_6=5, var_1_7=1, var_1_8=7, var_1_9=1] [L64] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=10, var_1_5=32, var_1_6=5, var_1_7=1, var_1_8=7, var_1_9=1] [L65] CALL assume_abort_if_not(var_1_3 <= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=10, var_1_5=32, var_1_6=5, var_1_7=1, var_1_8=7, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=10, var_1_5=32, var_1_6=5, var_1_7=1, var_1_8=7, var_1_9=1] [L65] RET assume_abort_if_not(var_1_3 <= 16383) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=10, var_1_5=32, var_1_6=5, var_1_7=1, var_1_8=7, var_1_9=1] [L66] var_1_4 = __VERIFIER_nondet_short() [L67] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=32, var_1_6=5, var_1_7=1, var_1_8=7, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=32, var_1_6=5, var_1_7=1, var_1_8=7, var_1_9=1] [L67] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=32, var_1_6=5, var_1_7=1, var_1_8=7, var_1_9=1] [L68] CALL assume_abort_if_not(var_1_4 <= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=32, var_1_6=5, var_1_7=1, var_1_8=7, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=32, var_1_6=5, var_1_7=1, var_1_8=7, var_1_9=1] [L68] RET assume_abort_if_not(var_1_4 <= 16383) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=32, var_1_6=5, var_1_7=1, var_1_8=7, var_1_9=1] [L69] var_1_5 = __VERIFIER_nondet_short() [L70] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=5, var_1_7=1, var_1_8=7, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=5, var_1_7=1, var_1_8=7, var_1_9=1] [L70] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=5, var_1_7=1, var_1_8=7, var_1_9=1] [L71] CALL assume_abort_if_not(var_1_5 <= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=5, var_1_7=1, var_1_8=7, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=5, var_1_7=1, var_1_8=7, var_1_9=1] [L71] RET assume_abort_if_not(var_1_5 <= 16383) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=5, var_1_7=1, var_1_8=7, var_1_9=1] [L72] var_1_7 = __VERIFIER_nondet_long() [L73] CALL assume_abort_if_not(var_1_7 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=5, var_1_7=-2147483648, var_1_8=7, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=5, var_1_7=-2147483648, var_1_8=7, var_1_9=1] [L73] RET assume_abort_if_not(var_1_7 >= -2147483648) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=5, var_1_7=-2147483648, var_1_8=7, var_1_9=1] [L74] CALL assume_abort_if_not(var_1_7 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=5, var_1_7=-2147483648, var_1_8=7, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=5, var_1_7=-2147483648, var_1_8=7, var_1_9=1] [L74] RET assume_abort_if_not(var_1_7 <= 2147483647) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=5, var_1_7=-2147483648, var_1_8=7, var_1_9=1] [L75] var_1_8 = __VERIFIER_nondet_long() [L76] CALL assume_abort_if_not(var_1_8 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=5, var_1_7=-2147483648, var_1_8=2147483647, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=5, var_1_7=-2147483648, var_1_8=2147483647, var_1_9=1] [L76] RET assume_abort_if_not(var_1_8 >= -2147483648) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=5, var_1_7=-2147483648, var_1_8=2147483647, var_1_9=1] [L77] CALL assume_abort_if_not(var_1_8 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=5, var_1_7=-2147483648, var_1_8=2147483647, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=5, var_1_7=-2147483648, var_1_8=2147483647, var_1_9=1] [L77] RET assume_abort_if_not(var_1_8 <= 2147483647) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=5, var_1_7=-2147483648, var_1_8=2147483647, var_1_9=1] [L78] var_1_9 = __VERIFIER_nondet_long() [L79] CALL assume_abort_if_not(var_1_9 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=5, var_1_7=-2147483648, var_1_8=2147483647, var_1_9=-2147483648] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=5, var_1_7=-2147483648, var_1_8=2147483647, var_1_9=-2147483648] [L79] RET assume_abort_if_not(var_1_9 >= -2147483648) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=5, var_1_7=-2147483648, var_1_8=2147483647, var_1_9=-2147483648] [L80] CALL assume_abort_if_not(var_1_9 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=5, var_1_7=-2147483648, var_1_8=2147483647, var_1_9=-2147483648] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=5, var_1_7=-2147483648, var_1_8=2147483647, var_1_9=-2147483648] [L80] RET assume_abort_if_not(var_1_9 <= 2147483647) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=5, var_1_7=-2147483648, var_1_8=2147483647, var_1_9=-2147483648] [L81] var_1_11 = __VERIFIER_nondet_uchar() [L82] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=2, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=5, var_1_7=-2147483648, var_1_8=2147483647, var_1_9=-2147483648] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=2, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=5, var_1_7=-2147483648, var_1_8=2147483647, var_1_9=-2147483648] [L82] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=2, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=5, var_1_7=-2147483648, var_1_8=2147483647, var_1_9=-2147483648] [L83] CALL assume_abort_if_not(var_1_11 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=2, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=5, var_1_7=-2147483648, var_1_8=2147483647, var_1_9=-2147483648] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=2, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=5, var_1_7=-2147483648, var_1_8=2147483647, var_1_9=-2147483648] [L83] RET assume_abort_if_not(var_1_11 <= 255) VAL [isInitial=1, var_1_10=32, var_1_11=2, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=5, var_1_7=-2147483648, var_1_8=2147483647, var_1_9=-2147483648] [L84] CALL assume_abort_if_not(var_1_11 != 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=2, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=5, var_1_7=-2147483648, var_1_8=2147483647, var_1_9=-2147483648] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=2, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=5, var_1_7=-2147483648, var_1_8=2147483647, var_1_9=-2147483648] [L84] RET assume_abort_if_not(var_1_11 != 0) VAL [isInitial=1, var_1_10=32, var_1_11=2, var_1_12=1230482582, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=5, var_1_7=-2147483648, var_1_8=2147483647, var_1_9=-2147483648] [L85] var_1_12 = __VERIFIER_nondet_long() [L86] CALL assume_abort_if_not(var_1_12 >= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=2, var_1_12=2147483647, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=5, var_1_7=-2147483648, var_1_8=2147483647, var_1_9=-2147483648] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=2, var_1_12=2147483647, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=5, var_1_7=-2147483648, var_1_8=2147483647, var_1_9=-2147483648] [L86] RET assume_abort_if_not(var_1_12 >= 1073741823) VAL [isInitial=1, var_1_10=32, var_1_11=2, var_1_12=2147483647, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=5, var_1_7=-2147483648, var_1_8=2147483647, var_1_9=-2147483648] [L87] CALL assume_abort_if_not(var_1_12 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=2, var_1_12=2147483647, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=5, var_1_7=-2147483648, var_1_8=2147483647, var_1_9=-2147483648] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=2, var_1_12=2147483647, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=5, var_1_7=-2147483648, var_1_8=2147483647, var_1_9=-2147483648] [L87] RET assume_abort_if_not(var_1_12 <= 2147483647) VAL [isInitial=1, var_1_10=32, var_1_11=2, var_1_12=2147483647, var_1_1=-5, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=5, var_1_7=-2147483648, var_1_8=2147483647, var_1_9=-2147483648] [L100] RET updateVariables() [L101] CALL step() [L37] var_1_1 = ((((((16) > (4)) ? (16) : (4))) + var_1_2) - (var_1_3 + ((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))))) VAL [isInitial=1, var_1_10=32, var_1_11=2, var_1_12=2147483647, var_1_1=16392, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=5, var_1_7=-2147483648, var_1_8=2147483647, var_1_9=-2147483648] [L38] COND FALSE !(var_1_2 >= var_1_1) [L45] var_1_6 = var_1_4 VAL [isInitial=1, var_1_10=32, var_1_11=2, var_1_12=2147483647, var_1_1=16392, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=4, var_1_7=-2147483648, var_1_8=2147483647, var_1_9=-2147483648] [L47] EXPR var_1_4 << var_1_2 VAL [isInitial=1, var_1_10=32, var_1_11=2, var_1_12=2147483647, var_1_1=16392, var_1_2=16383, var_1_3=3, var_1_4 << var_1_2=16379, var_1_4=4, var_1_5=16383, var_1_6=4, var_1_7=-2147483648, var_1_8=2147483647, var_1_9=-2147483648] [L47] signed long int stepLocal_1 = var_1_6 + (var_1_4 << var_1_2); [L48] signed long int stepLocal_0 = var_1_2 - (var_1_12 - var_1_5); VAL [isInitial=1, stepLocal_0=-2147450881, stepLocal_1=16383, var_1_10=32, var_1_11=2, var_1_12=2147483647, var_1_1=16392, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=4, var_1_7=-2147483648, var_1_8=2147483647, var_1_9=-2147483648] [L49] COND FALSE !(stepLocal_1 != var_1_5) [L56] var_1_10 = var_1_2 VAL [isInitial=1, stepLocal_0=-2147450881, stepLocal_1=16383, var_1_10=16383, var_1_11=2, var_1_12=2147483647, var_1_1=16392, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=4, var_1_7=-2147483648, var_1_8=2147483647, var_1_9=-2147483648] [L101] RET step() [L102] CALL, EXPR property() [L92] EXPR ((var_1_1 == ((signed short int) ((((((16) > (4)) ? (16) : (4))) + var_1_2) - (var_1_3 + ((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))))))) && ((var_1_2 >= var_1_1) ? ((((((var_1_7 + var_1_8) < 0 ) ? -(var_1_7 + var_1_8) : (var_1_7 + var_1_8))) < var_1_9) ? (var_1_6 == ((signed long int) var_1_3)) : (var_1_6 == ((signed long int) var_1_1))) : (var_1_6 == ((signed long int) var_1_4)))) && (((var_1_6 + (var_1_4 << var_1_2)) != var_1_5) ? (((var_1_3 / var_1_11) < (var_1_2 - (var_1_12 - var_1_5))) ? (var_1_10 == ((signed long int) ((((-256) < (((((var_1_4) < (((((var_1_5) > (var_1_2)) ? (var_1_5) : (var_1_2))))) ? (var_1_4) : (((((var_1_5) > (var_1_2)) ? (var_1_5) : (var_1_2)))))))) ? (-256) : (((((var_1_4) < (((((var_1_5) > (var_1_2)) ? (var_1_5) : (var_1_2))))) ? (var_1_4) : (((((var_1_5) > (var_1_2)) ? (var_1_5) : (var_1_2))))))))))) : (var_1_10 == ((signed long int) var_1_4))) : (var_1_10 == ((signed long int) var_1_2))) VAL [((var_1_1 == ((signed short int) ((((((16) > (4)) ? (16) : (4))) + var_1_2) - (var_1_3 + ((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))))))) && ((var_1_2 >= var_1_1) ? ((((((var_1_7 + var_1_8) < 0 ) ? -(var_1_7 + var_1_8) : (var_1_7 + var_1_8))) < var_1_9) ? (var_1_6 == ((signed long int) var_1_3)) : (var_1_6 == ((signed long int) var_1_1))) : (var_1_6 == ((signed long int) var_1_4)))) && (((var_1_6 + (var_1_4 << var_1_2)) != var_1_5) ? (((var_1_3 / var_1_11) < (var_1_2 - (var_1_12 - var_1_5))) ? (var_1_10 == ((signed long int) ((((-256) < (((((var_1_4) < (((((var_1_5) > (var_1_2)) ? (var_1_5) : (var_1_2))))) ? (var_1_4) : (((((var_1_5) > (var_1_2)) ? (var_1_5) : (var_1_2)))))))) ? (-256) : (((((var_1_4) < (((((var_1_5) > (var_1_2)) ? (var_1_5) : (var_1_2))))) ? (var_1_4) : (((((var_1_5) > (var_1_2)) ? (var_1_5) : (var_1_2))))))))))) : (var_1_10 == ((signed long int) var_1_4))) : (var_1_10 == ((signed long int) var_1_2)))=1, isInitial=1, var_1_10=16383, var_1_11=2, var_1_12=2147483647, var_1_1=16392, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=4, var_1_7=-2147483648, var_1_8=2147483647, var_1_9=-2147483648] [L92] EXPR var_1_4 << var_1_2 VAL [((var_1_1 == ((signed short int) ((((((16) > (4)) ? (16) : (4))) + var_1_2) - (var_1_3 + ((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))))))) && ((var_1_2 >= var_1_1) ? ((((((var_1_7 + var_1_8) < 0 ) ? -(var_1_7 + var_1_8) : (var_1_7 + var_1_8))) < var_1_9) ? (var_1_6 == ((signed long int) var_1_3)) : (var_1_6 == ((signed long int) var_1_1))) : (var_1_6 == ((signed long int) var_1_4)))) && (((var_1_6 + (var_1_4 << var_1_2)) != var_1_5) ? (((var_1_3 / var_1_11) < (var_1_2 - (var_1_12 - var_1_5))) ? (var_1_10 == ((signed long int) ((((-256) < (((((var_1_4) < (((((var_1_5) > (var_1_2)) ? (var_1_5) : (var_1_2))))) ? (var_1_4) : (((((var_1_5) > (var_1_2)) ? (var_1_5) : (var_1_2)))))))) ? (-256) : (((((var_1_4) < (((((var_1_5) > (var_1_2)) ? (var_1_5) : (var_1_2))))) ? (var_1_4) : (((((var_1_5) > (var_1_2)) ? (var_1_5) : (var_1_2))))))))))) : (var_1_10 == ((signed long int) var_1_4))) : (var_1_10 == ((signed long int) var_1_2)))=1, isInitial=1, var_1_10=16383, var_1_11=2, var_1_12=2147483647, var_1_1=16392, var_1_2=16383, var_1_3=3, var_1_4 << var_1_2=16380, var_1_4=4, var_1_5=16383, var_1_6=4, var_1_7=-2147483648, var_1_8=2147483647, var_1_9=-2147483648] [L92] EXPR ((var_1_1 == ((signed short int) ((((((16) > (4)) ? (16) : (4))) + var_1_2) - (var_1_3 + ((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))))))) && ((var_1_2 >= var_1_1) ? ((((((var_1_7 + var_1_8) < 0 ) ? -(var_1_7 + var_1_8) : (var_1_7 + var_1_8))) < var_1_9) ? (var_1_6 == ((signed long int) var_1_3)) : (var_1_6 == ((signed long int) var_1_1))) : (var_1_6 == ((signed long int) var_1_4)))) && (((var_1_6 + (var_1_4 << var_1_2)) != var_1_5) ? (((var_1_3 / var_1_11) < (var_1_2 - (var_1_12 - var_1_5))) ? (var_1_10 == ((signed long int) ((((-256) < (((((var_1_4) < (((((var_1_5) > (var_1_2)) ? (var_1_5) : (var_1_2))))) ? (var_1_4) : (((((var_1_5) > (var_1_2)) ? (var_1_5) : (var_1_2)))))))) ? (-256) : (((((var_1_4) < (((((var_1_5) > (var_1_2)) ? (var_1_5) : (var_1_2))))) ? (var_1_4) : (((((var_1_5) > (var_1_2)) ? (var_1_5) : (var_1_2))))))))))) : (var_1_10 == ((signed long int) var_1_4))) : (var_1_10 == ((signed long int) var_1_2))) VAL [((var_1_1 == ((signed short int) ((((((16) > (4)) ? (16) : (4))) + var_1_2) - (var_1_3 + ((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))))))) && ((var_1_2 >= var_1_1) ? ((((((var_1_7 + var_1_8) < 0 ) ? -(var_1_7 + var_1_8) : (var_1_7 + var_1_8))) < var_1_9) ? (var_1_6 == ((signed long int) var_1_3)) : (var_1_6 == ((signed long int) var_1_1))) : (var_1_6 == ((signed long int) var_1_4)))) && (((var_1_6 + (var_1_4 << var_1_2)) != var_1_5) ? (((var_1_3 / var_1_11) < (var_1_2 - (var_1_12 - var_1_5))) ? (var_1_10 == ((signed long int) ((((-256) < (((((var_1_4) < (((((var_1_5) > (var_1_2)) ? (var_1_5) : (var_1_2))))) ? (var_1_4) : (((((var_1_5) > (var_1_2)) ? (var_1_5) : (var_1_2)))))))) ? (-256) : (((((var_1_4) < (((((var_1_5) > (var_1_2)) ? (var_1_5) : (var_1_2))))) ? (var_1_4) : (((((var_1_5) > (var_1_2)) ? (var_1_5) : (var_1_2))))))))))) : (var_1_10 == ((signed long int) var_1_4))) : (var_1_10 == ((signed long int) var_1_2)))=0, isInitial=1, var_1_10=16383, var_1_11=2, var_1_12=2147483647, var_1_1=16392, var_1_2=16383, var_1_3=3, var_1_4 << var_1_2=16380, var_1_4=4, var_1_5=16383, var_1_6=4, var_1_7=-2147483648, var_1_8=2147483647, var_1_9=-2147483648] [L92-L93] return ((var_1_1 == ((signed short int) ((((((16) > (4)) ? (16) : (4))) + var_1_2) - (var_1_3 + ((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))))))) && ((var_1_2 >= var_1_1) ? ((((((var_1_7 + var_1_8) < 0 ) ? -(var_1_7 + var_1_8) : (var_1_7 + var_1_8))) < var_1_9) ? (var_1_6 == ((signed long int) var_1_3)) : (var_1_6 == ((signed long int) var_1_1))) : (var_1_6 == ((signed long int) var_1_4)))) && (((var_1_6 + (var_1_4 << var_1_2)) != var_1_5) ? (((var_1_3 / var_1_11) < (var_1_2 - (var_1_12 - var_1_5))) ? (var_1_10 == ((signed long int) ((((-256) < (((((var_1_4) < (((((var_1_5) > (var_1_2)) ? (var_1_5) : (var_1_2))))) ? (var_1_4) : (((((var_1_5) > (var_1_2)) ? (var_1_5) : (var_1_2)))))))) ? (-256) : (((((var_1_4) < (((((var_1_5) > (var_1_2)) ? (var_1_5) : (var_1_2))))) ? (var_1_4) : (((((var_1_5) > (var_1_2)) ? (var_1_5) : (var_1_2))))))))))) : (var_1_10 == ((signed long int) var_1_4))) : (var_1_10 == ((signed long int) var_1_2))) ; [L102] RET, EXPR property() [L102] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=16383, var_1_11=2, var_1_12=2147483647, var_1_1=16392, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=4, var_1_7=-2147483648, var_1_8=2147483647, var_1_9=-2147483648] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=16383, var_1_11=2, var_1_12=2147483647, var_1_1=16392, var_1_2=16383, var_1_3=3, var_1_4=4, var_1_5=16383, var_1_6=4, var_1_7=-2147483648, var_1_8=2147483647, var_1_9=-2147483648] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 57 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 28.5s, OverallIterations: 8, TraceHistogramMax: 19, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 6.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 271 SdHoareTripleChecker+Valid, 4.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 252 mSDsluCounter, 1874 SdHoareTripleChecker+Invalid, 3.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1296 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 636 IncrementalHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 578 mSDtfsCounter, 636 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 688 GetRequests, 645 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=6, InterpolantAutomatonStates: 47, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 146 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 19.5s InterpolantComputationTime, 962 NumberOfCodeBlocks, 962 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 954 ConstructedInterpolants, 0 QuantifiedInterpolants, 8621 SizeOfPredicates, 20 NumberOfNonLiveVariables, 867 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 5460/5472 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 [2023-11-06 22:53:29,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/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_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-39.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 77e2354f2cb7c50edc4d757661e3378145df169c487a524446d0f0165ad173f1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:53:31,803 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:53:31,890 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-06 22:53:31,897 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:53:31,898 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:53:31,937 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:53:31,940 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:53:31,940 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:53:31,942 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:53:31,947 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:53:31,948 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:53:31,949 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:53:31,950 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:53:31,952 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:53:31,953 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:53:31,954 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:53:31,954 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:53:31,955 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:53:31,955 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:53:31,957 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:53:31,957 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:53:31,958 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:53:31,958 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 22:53:31,959 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 22:53:31,960 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:53:31,960 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:53:31,961 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:53:31,961 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:53:31,962 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:53:31,963 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:53:31,964 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:53:31,965 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:53:31,965 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:53:31,966 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:53:31,966 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 22:53:31,967 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 22:53:31,967 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:53:31,967 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:53:31,968 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:53:31,969 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:53:31,969 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 22:53:31,970 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:53:31,970 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_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77e2354f2cb7c50edc4d757661e3378145df169c487a524446d0f0165ad173f1 [2023-11-06 22:53:32,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:53:32,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:53:32,541 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:53:32,543 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:53:32,543 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:53:32,545 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-39.i [2023-11-06 22:53:36,367 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:53:36,685 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:53:36,686 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-39.i [2023-11-06 22:53:36,696 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/data/64e357658/f59d73de783143e38d894a610f72ce53/FLAG064eeb97b [2023-11-06 22:53:36,717 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/data/64e357658/f59d73de783143e38d894a610f72ce53 [2023-11-06 22:53:36,720 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:53:36,721 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:53:36,723 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:53:36,723 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:53:36,728 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:53:36,729 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:53:36" (1/1) ... [2023-11-06 22:53:36,730 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12c44311 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:36, skipping insertion in model container [2023-11-06 22:53:36,730 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:53:36" (1/1) ... [2023-11-06 22:53:36,758 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:53:36,932 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_29d45552-a337-457a-ab5a-ff2ec921c523/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-39.i[916,929] [2023-11-06 22:53:36,980 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:53:36,996 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:53:37,010 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_29d45552-a337-457a-ab5a-ff2ec921c523/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-39.i[916,929] [2023-11-06 22:53:37,038 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:53:37,057 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:53:37,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:37 WrapperNode [2023-11-06 22:53:37,058 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:53:37,059 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:53:37,059 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:53:37,060 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:53:37,067 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:37" (1/1) ... [2023-11-06 22:53:37,079 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:37" (1/1) ... [2023-11-06 22:53:37,122 INFO L138 Inliner]: procedures = 27, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 105 [2023-11-06 22:53:37,125 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:53:37,126 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:53:37,126 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:53:37,126 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:53:37,134 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:37" (1/1) ... [2023-11-06 22:53:37,134 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:37" (1/1) ... [2023-11-06 22:53:37,139 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:37" (1/1) ... [2023-11-06 22:53:37,139 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:37" (1/1) ... [2023-11-06 22:53:37,152 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:37" (1/1) ... [2023-11-06 22:53:37,156 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:37" (1/1) ... [2023-11-06 22:53:37,159 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:37" (1/1) ... [2023-11-06 22:53:37,160 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:37" (1/1) ... [2023-11-06 22:53:37,173 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:53:37,174 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:53:37,174 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:53:37,174 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:53:37,175 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:37" (1/1) ... [2023-11-06 22:53:37,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:53:37,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:53:37,209 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:53:37,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:53:37,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:53:37,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 22:53:37,258 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:53:37,258 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:53:37,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:53:37,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:53:37,350 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:53:37,363 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:53:37,787 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:53:37,795 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:53:37,795 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:53:37,797 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:53:37 BoogieIcfgContainer [2023-11-06 22:53:37,798 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:53:37,800 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:53:37,801 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:53:37,804 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:53:37,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:53:36" (1/3) ... [2023-11-06 22:53:37,809 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@878557a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:53:37, skipping insertion in model container [2023-11-06 22:53:37,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:37" (2/3) ... [2023-11-06 22:53:37,811 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@878557a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:53:37, skipping insertion in model container [2023-11-06 22:53:37,811 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:53:37" (3/3) ... [2023-11-06 22:53:37,813 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-39.i [2023-11-06 22:53:37,830 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:53:37,830 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:53:37,881 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:53:37,887 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=LoopsAndPotentialCycles, 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;@737866bb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:53:37,888 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:53:37,893 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 30 states have (on average 1.3) internal successors, (39), 31 states have internal predecessors, (39), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 22:53:37,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-06 22:53:37,910 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:53:37,911 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:53:37,912 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:53:37,918 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:53:37,919 INFO L85 PathProgramCache]: Analyzing trace with hash 448191956, now seen corresponding path program 1 times [2023-11-06 22:53:37,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:53:37,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1373451254] [2023-11-06 22:53:37,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:53:37,940 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 [2023-11-06 22:53:37,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:53:37,947 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 22:53:37,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29d45552-a337-457a-ab5a-ff2ec921c523/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:53:38,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:38,240 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-06 22:53:38,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:33,534 WARN L293 SmtUtils]: Spent 11.79s on a formula simplification. DAG size of input: 237 DAG size of output: 247 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)