./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-70.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_744f65ba-469d-4322-8013-79f8a3bae41a/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/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_744f65ba-469d-4322-8013-79f8a3bae41a/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-70.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/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_744f65ba-469d-4322-8013-79f8a3bae41a/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 a84279a9a91ee37805990f46f50571558dad46ad88a614bfb1c60519757d820f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:45:06,660 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:45:06,760 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:45:06,766 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:45:06,767 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:45:06,795 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:45:06,796 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:45:06,797 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:45:06,799 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:45:06,801 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:45:06,802 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:45:06,803 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:45:06,804 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:45:06,804 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:45:06,805 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:45:06,805 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:45:06,806 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:45:06,806 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:45:06,807 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:45:06,807 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:45:06,808 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:45:06,809 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:45:06,809 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:45:06,810 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:45:06,810 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:45:06,811 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:45:06,811 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:45:06,812 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:45:06,812 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:45:06,813 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:45:06,813 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:45:06,814 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:45:06,814 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:45:06,815 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:45:06,815 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:45:06,815 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:45:06,815 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:45:06,816 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:45:06,816 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:45:06,816 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_744f65ba-469d-4322-8013-79f8a3bae41a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a84279a9a91ee37805990f46f50571558dad46ad88a614bfb1c60519757d820f [2023-11-06 22:45:07,141 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:45:07,200 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:45:07,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:45:07,216 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:45:07,216 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:45:07,218 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-70.i [2023-11-06 22:45:10,450 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:45:10,711 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:45:10,711 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-70.i [2023-11-06 22:45:10,719 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/bin/uautomizer-verify-WvqO1wxjHP/data/7dc45aba9/97e4f8c978ed4805b2c9170902f2db83/FLAG23983c724 [2023-11-06 22:45:10,752 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/bin/uautomizer-verify-WvqO1wxjHP/data/7dc45aba9/97e4f8c978ed4805b2c9170902f2db83 [2023-11-06 22:45:10,754 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:45:10,756 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:45:10,758 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:45:10,758 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:45:10,764 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:45:10,765 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:45:10" (1/1) ... [2023-11-06 22:45:10,767 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55fe7d79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:10, skipping insertion in model container [2023-11-06 22:45:10,767 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:45:10" (1/1) ... [2023-11-06 22:45:10,792 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:45:10,927 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_744f65ba-469d-4322-8013-79f8a3bae41a/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-70.i[915,928] [2023-11-06 22:45:10,952 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:45:10,971 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:45:10,987 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_744f65ba-469d-4322-8013-79f8a3bae41a/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-70.i[915,928] [2023-11-06 22:45:11,008 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:45:11,024 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:45:11,025 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:11 WrapperNode [2023-11-06 22:45:11,025 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:45:11,026 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:45:11,027 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:45:11,027 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:45:11,034 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:11" (1/1) ... [2023-11-06 22:45:11,041 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:11" (1/1) ... [2023-11-06 22:45:11,063 INFO L138 Inliner]: procedures = 26, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 64 [2023-11-06 22:45:11,064 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:45:11,065 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:45:11,065 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:45:11,065 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:45:11,075 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:11" (1/1) ... [2023-11-06 22:45:11,075 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:11" (1/1) ... [2023-11-06 22:45:11,077 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:11" (1/1) ... [2023-11-06 22:45:11,078 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:11" (1/1) ... [2023-11-06 22:45:11,085 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:11" (1/1) ... [2023-11-06 22:45:11,089 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:11" (1/1) ... [2023-11-06 22:45:11,090 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:11" (1/1) ... [2023-11-06 22:45:11,091 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:11" (1/1) ... [2023-11-06 22:45:11,093 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:45:11,095 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:45:11,095 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:45:11,095 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:45:11,096 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:11" (1/1) ... [2023-11-06 22:45:11,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:45:11,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:45:11,138 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:45:11,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:45:11,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:45:11,184 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:45:11,184 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:45:11,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:45:11,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:45:11,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:45:11,276 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:45:11,280 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:45:11,503 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:45:11,510 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:45:11,511 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:45:11,513 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:45:11 BoogieIcfgContainer [2023-11-06 22:45:11,513 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:45:11,516 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:45:11,517 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:45:11,520 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:45:11,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:45:10" (1/3) ... [2023-11-06 22:45:11,521 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@733a90a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:45:11, skipping insertion in model container [2023-11-06 22:45:11,522 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:11" (2/3) ... [2023-11-06 22:45:11,522 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@733a90a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:45:11, skipping insertion in model container [2023-11-06 22:45:11,522 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:45:11" (3/3) ... [2023-11-06 22:45:11,523 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-70.i [2023-11-06 22:45:11,558 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:45:11,559 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:45:11,640 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:45:11,647 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;@65347288, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:45:11,647 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:45:11,651 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 24 states have internal predecessors, (31), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-06 22:45:11,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-06 22:45:11,659 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:45:11,660 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 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 22:45:11,661 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:45:11,666 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:45:11,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1958802902, now seen corresponding path program 1 times [2023-11-06 22:45:11,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:45:11,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801658504] [2023-11-06 22:45:11,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:45:11,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:45:11,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:11,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:45:11,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:11,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:45:11,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:11,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:45:11,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:11,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:45:11,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:11,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:45:11,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:11,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-06 22:45:11,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:11,961 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-06 22:45:11,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:45:11,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801658504] [2023-11-06 22:45:11,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801658504] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:45:11,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:45:11,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:45:11,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12686627] [2023-11-06 22:45:11,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:45:11,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:45:11,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:45:12,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:45:12,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:45:12,003 INFO L87 Difference]: Start difference. First operand has 32 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 24 states have internal predecessors, (31), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-06 22:45:12,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:45:12,025 INFO L93 Difference]: Finished difference Result 57 states and 86 transitions. [2023-11-06 22:45:12,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:45:12,028 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 44 [2023-11-06 22:45:12,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:45:12,034 INFO L225 Difference]: With dead ends: 57 [2023-11-06 22:45:12,034 INFO L226 Difference]: Without dead ends: 28 [2023-11-06 22:45:12,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 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 22:45:12,041 INFO L413 NwaCegarLoop]: 36 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, 36 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 22:45:12,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:45:12,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-11-06 22:45:12,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-11-06 22:45:12,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-06 22:45:12,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2023-11-06 22:45:12,075 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 44 [2023-11-06 22:45:12,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:45:12,076 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2023-11-06 22:45:12,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-06 22:45:12,076 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2023-11-06 22:45:12,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-06 22:45:12,079 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:45:12,079 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 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 22:45:12,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:45:12,080 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:45:12,080 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:45:12,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1139575634, now seen corresponding path program 1 times [2023-11-06 22:45:12,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:45:12,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884836095] [2023-11-06 22:45:12,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:45:12,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:45:12,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:45:12,141 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:45:12,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:45:12,250 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:45:12,251 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:45:12,253 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 22:45:12,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:45:12,260 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-06 22:45:12,264 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:45:12,329 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:45:12 BoogieIcfgContainer [2023-11-06 22:45:12,329 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:45:12,330 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:45:12,330 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:45:12,331 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:45:12,331 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:45:11" (3/4) ... [2023-11-06 22:45:12,335 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:45:12,337 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:45:12,338 INFO L158 Benchmark]: Toolchain (without parser) took 1581.26ms. Allocated memory is still 155.2MB. Free memory was 126.3MB in the beginning and 93.5MB in the end (delta: 32.7MB). Peak memory consumption was 31.2MB. Max. memory is 16.1GB. [2023-11-06 22:45:12,339 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 127.9MB. Free memory was 102.7MB in the beginning and 102.5MB in the end (delta: 133.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:45:12,344 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.70ms. Allocated memory is still 155.2MB. Free memory was 126.3MB in the beginning and 115.1MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:45:12,346 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.74ms. Allocated memory is still 155.2MB. Free memory was 115.1MB in the beginning and 113.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:45:12,346 INFO L158 Benchmark]: Boogie Preprocessor took 29.14ms. Allocated memory is still 155.2MB. Free memory was 113.4MB in the beginning and 112.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:45:12,347 INFO L158 Benchmark]: RCFGBuilder took 418.45ms. Allocated memory is still 155.2MB. Free memory was 112.3MB in the beginning and 100.9MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:45:12,348 INFO L158 Benchmark]: TraceAbstraction took 813.13ms. Allocated memory is still 155.2MB. Free memory was 100.2MB in the beginning and 94.4MB in the end (delta: 5.9MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2023-11-06 22:45:12,349 INFO L158 Benchmark]: Witness Printer took 6.60ms. Allocated memory is still 155.2MB. Free memory was 94.2MB in the beginning and 93.5MB in the end (delta: 637.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:45:12,354 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 127.9MB. Free memory was 102.7MB in the beginning and 102.5MB in the end (delta: 133.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 267.70ms. Allocated memory is still 155.2MB. Free memory was 126.3MB in the beginning and 115.1MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.74ms. Allocated memory is still 155.2MB. Free memory was 115.1MB in the beginning and 113.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.14ms. Allocated memory is still 155.2MB. Free memory was 113.4MB in the beginning and 112.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 418.45ms. Allocated memory is still 155.2MB. Free memory was 112.3MB in the beginning and 100.9MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 813.13ms. Allocated memory is still 155.2MB. Free memory was 100.2MB in the beginning and 94.4MB in the end (delta: 5.9MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. * Witness Printer took 6.60ms. Allocated memory is still 155.2MB. Free memory was 94.2MB in the beginning and 93.5MB in the end (delta: 637.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 58, overapproximation of someBinaryArithmeticFLOAToperation at line 32. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 9.5; [L23] unsigned char var_1_2 = 1; [L24] unsigned char var_1_3 = 0; [L25] float var_1_4 = 31.2; [L26] float var_1_5 = 15.639; VAL [isInitial=0, var_1_1=19/2, var_1_2=1, var_1_3=0, var_1_4=156/5, var_1_5=15639/1000] [L62] isInitial = 1 [L63] FCALL initially() [L64] COND TRUE 1 [L65] FCALL updateLastVariables() [L66] CALL updateVariables() [L44] var_1_2 = __VERIFIER_nondet_uchar() [L45] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=19/2, var_1_3=0, var_1_4=156/5, var_1_5=15639/1000] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=19/2, var_1_3=0, var_1_4=156/5, var_1_5=15639/1000] [L45] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_1=19/2, var_1_3=0, var_1_4=156/5, var_1_5=15639/1000] [L46] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=19/2, var_1_2=1, var_1_3=0, var_1_4=156/5, var_1_5=15639/1000] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=19/2, var_1_2=1, var_1_3=0, var_1_4=156/5, var_1_5=15639/1000] [L46] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_1=19/2, var_1_2=1, var_1_3=0, var_1_4=156/5, var_1_5=15639/1000] [L47] var_1_3 = __VERIFIER_nondet_uchar() [L48] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=19/2, var_1_2=1, var_1_3=1, var_1_4=156/5, var_1_5=15639/1000] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=19/2, var_1_2=1, var_1_3=1, var_1_4=156/5, var_1_5=15639/1000] [L48] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_1=19/2, var_1_2=1, var_1_3=1, var_1_4=156/5, var_1_5=15639/1000] [L49] CALL assume_abort_if_not(var_1_3 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=19/2, var_1_2=1, var_1_3=1, var_1_4=156/5, var_1_5=15639/1000] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=19/2, var_1_2=1, var_1_3=1, var_1_4=156/5, var_1_5=15639/1000] [L49] RET assume_abort_if_not(var_1_3 <= 1) VAL [isInitial=1, var_1_1=19/2, var_1_2=1, var_1_3=1, var_1_4=156/5, var_1_5=15639/1000] [L50] var_1_4 = __VERIFIER_nondet_float() [L51] CALL assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=19/2, var_1_2=1, var_1_3=1, var_1_4=262, var_1_5=15639/1000] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=19/2, var_1_2=1, var_1_3=1, var_1_4=262, var_1_5=15639/1000] [L51] RET assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=19/2, var_1_2=1, var_1_3=1, var_1_4=262, var_1_5=15639/1000] [L52] var_1_5 = __VERIFIER_nondet_float() [L53] CALL assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=19/2, var_1_2=1, var_1_3=1, var_1_4=262, var_1_5=263] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=19/2, var_1_2=1, var_1_3=1, var_1_4=262, var_1_5=263] [L53] RET assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=19/2, var_1_2=1, var_1_3=1, var_1_4=262, var_1_5=263] [L66] RET updateVariables() [L67] CALL step() [L30] unsigned char stepLocal_0 = var_1_2; VAL [isInitial=1, stepLocal_0=1, var_1_1=19/2, var_1_2=1, var_1_3=1, var_1_4=262, var_1_5=263] [L31] COND TRUE stepLocal_0 && var_1_3 [L32] var_1_1 = (var_1_4 - var_1_5) VAL [isInitial=1, stepLocal_0=1, var_1_2=1, var_1_3=1, var_1_4=262, var_1_5=263] [L67] RET step() [L68] CALL, EXPR property() [L58-L59] return (var_1_2 && var_1_3) ? (var_1_1 == ((float) (var_1_4 - var_1_5))) : ((var_1_4 >= var_1_5) ? (var_1_3 ? (var_1_1 == ((float) ((((var_1_5) < 0 ) ? -(var_1_5) : (var_1_5))))) : (var_1_1 == ((float) var_1_4))) : 1) ; VAL [\result=0, isInitial=1, var_1_2=1, var_1_3=1, var_1_4=262, var_1_5=263] [L68] RET, EXPR property() [L68] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_2=1, var_1_3=1, var_1_4=262, var_1_5=263] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_2=1, var_1_3=1, var_1_4=262, var_1_5=263] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 36 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 36 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 43 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 60/60 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 22:45:12,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/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_744f65ba-469d-4322-8013-79f8a3bae41a/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/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_744f65ba-469d-4322-8013-79f8a3bae41a/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-70.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/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_744f65ba-469d-4322-8013-79f8a3bae41a/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 a84279a9a91ee37805990f46f50571558dad46ad88a614bfb1c60519757d820f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:45:15,327 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:45:15,454 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-06 22:45:15,461 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:45:15,462 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:45:15,494 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:45:15,497 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:45:15,498 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:45:15,499 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:45:15,505 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:45:15,507 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:45:15,508 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:45:15,508 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:45:15,511 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:45:15,511 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:45:15,512 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:45:15,513 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:45:15,513 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:45:15,514 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:45:15,514 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:45:15,515 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:45:15,515 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:45:15,516 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 22:45:15,516 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 22:45:15,517 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:45:15,517 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:45:15,518 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:45:15,519 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:45:15,519 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:45:15,520 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:45:15,521 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:45:15,522 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:45:15,522 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:45:15,523 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:45:15,523 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 22:45:15,523 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 22:45:15,524 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:45:15,524 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:45:15,524 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:45:15,525 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:45:15,526 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 22:45:15,526 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:45:15,527 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_744f65ba-469d-4322-8013-79f8a3bae41a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a84279a9a91ee37805990f46f50571558dad46ad88a614bfb1c60519757d820f [2023-11-06 22:45:16,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:45:16,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:45:16,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:45:16,050 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:45:16,051 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:45:16,053 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-70.i [2023-11-06 22:45:19,408 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:45:19,734 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:45:19,735 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-70.i [2023-11-06 22:45:19,744 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/bin/uautomizer-verify-WvqO1wxjHP/data/b9bf41e33/1646d3871d124723a777ccc111ff86a2/FLAG9e3bc7a2c [2023-11-06 22:45:19,760 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/bin/uautomizer-verify-WvqO1wxjHP/data/b9bf41e33/1646d3871d124723a777ccc111ff86a2 [2023-11-06 22:45:19,766 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:45:19,768 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:45:19,773 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:45:19,773 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:45:19,779 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:45:19,780 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:45:19" (1/1) ... [2023-11-06 22:45:19,781 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1595f134 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:19, skipping insertion in model container [2023-11-06 22:45:19,781 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:45:19" (1/1) ... [2023-11-06 22:45:19,809 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:45:19,955 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_744f65ba-469d-4322-8013-79f8a3bae41a/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-70.i[915,928] [2023-11-06 22:45:19,982 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:45:20,004 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:45:20,022 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_744f65ba-469d-4322-8013-79f8a3bae41a/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-70.i[915,928] [2023-11-06 22:45:20,049 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:45:20,074 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:45:20,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:20 WrapperNode [2023-11-06 22:45:20,075 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:45:20,077 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:45:20,078 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:45:20,078 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:45:20,087 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:20" (1/1) ... [2023-11-06 22:45:20,116 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:20" (1/1) ... [2023-11-06 22:45:20,156 INFO L138 Inliner]: procedures = 27, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 64 [2023-11-06 22:45:20,157 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:45:20,159 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:45:20,159 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:45:20,159 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:45:20,170 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:20" (1/1) ... [2023-11-06 22:45:20,171 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:20" (1/1) ... [2023-11-06 22:45:20,183 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:20" (1/1) ... [2023-11-06 22:45:20,183 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:20" (1/1) ... [2023-11-06 22:45:20,203 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:20" (1/1) ... [2023-11-06 22:45:20,206 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:20" (1/1) ... [2023-11-06 22:45:20,209 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:20" (1/1) ... [2023-11-06 22:45:20,211 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:20" (1/1) ... [2023-11-06 22:45:20,227 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:45:20,229 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:45:20,229 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:45:20,229 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:45:20,230 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:20" (1/1) ... [2023-11-06 22:45:20,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:45:20,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:45:20,278 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:45:20,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:45:20,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:45:20,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 22:45:20,334 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:45:20,334 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:45:20,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:45:20,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:45:20,439 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:45:20,441 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:45:20,806 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:45:20,821 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:45:20,822 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:45:20,824 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:45:20 BoogieIcfgContainer [2023-11-06 22:45:20,825 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:45:20,829 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:45:20,829 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:45:20,833 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:45:20,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:45:19" (1/3) ... [2023-11-06 22:45:20,834 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@543802c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:45:20, skipping insertion in model container [2023-11-06 22:45:20,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:20" (2/3) ... [2023-11-06 22:45:20,835 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@543802c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:45:20, skipping insertion in model container [2023-11-06 22:45:20,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:45:20" (3/3) ... [2023-11-06 22:45:20,838 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-70.i [2023-11-06 22:45:20,878 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:45:20,879 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:45:20,975 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:45:20,983 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;@163c0674, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:45:20,983 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:45:20,989 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 24 states have internal predecessors, (31), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-06 22:45:21,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-06 22:45:21,003 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:45:21,004 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 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 22:45:21,008 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:45:21,017 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:45:21,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1958802902, now seen corresponding path program 1 times [2023-11-06 22:45:21,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:45:21,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2132117957] [2023-11-06 22:45:21,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:45:21,037 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 22:45:21,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:45:21,044 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/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 22:45:21,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/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 22:45:21,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:21,396 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 22:45:21,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:45:21,456 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-06 22:45:21,456 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:45:21,457 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:45:21,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2132117957] [2023-11-06 22:45:21,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2132117957] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:45:21,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:45:21,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:45:21,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509483076] [2023-11-06 22:45:21,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:45:21,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:45:21,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:45:21,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:45:21,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:45:21,527 INFO L87 Difference]: Start difference. First operand has 32 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 24 states have internal predecessors, (31), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-06 22:45:21,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:45:21,565 INFO L93 Difference]: Finished difference Result 57 states and 86 transitions. [2023-11-06 22:45:21,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:45:21,568 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 44 [2023-11-06 22:45:21,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:45:21,578 INFO L225 Difference]: With dead ends: 57 [2023-11-06 22:45:21,578 INFO L226 Difference]: Without dead ends: 28 [2023-11-06 22:45:21,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 43 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 22:45:21,590 INFO L413 NwaCegarLoop]: 36 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, 36 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 22:45:21,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:45:21,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-11-06 22:45:21,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-11-06 22:45:21,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-06 22:45:21,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2023-11-06 22:45:21,648 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 44 [2023-11-06 22:45:21,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:45:21,648 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2023-11-06 22:45:21,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-06 22:45:21,649 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2023-11-06 22:45:21,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-06 22:45:21,653 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:45:21,654 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 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 22:45:21,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/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)] Forceful destruction successful, exit code 0 [2023-11-06 22:45:21,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/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 [2023-11-06 22:45:21,868 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:45:21,869 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:45:21,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1139575634, now seen corresponding path program 1 times [2023-11-06 22:45:21,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:45:21,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [276638408] [2023-11-06 22:45:21,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:45:21,871 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 22:45:21,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:45:21,893 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/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 22:45:21,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/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 (3)] Waiting until timeout for monitored process [2023-11-06 22:45:22,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:22,153 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-06 22:45:22,160 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:45:52,279 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 47 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-06 22:45:52,279 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:46:21,387 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:46:21,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [276638408] [2023-11-06 22:46:21,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [276638408] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:46:21,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1946170134] [2023-11-06 22:46:21,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:21,388 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-06 22:46:21,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/bin/uautomizer-verify-WvqO1wxjHP/cvc4 [2023-11-06 22:46:21,392 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-06 22:46:21,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-06 22:46:21,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:21,836 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-06 22:46:21,840 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:47:00,656 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 29 proven. 9 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-06 22:47:00,656 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:47:14,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1946170134] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:47:14,466 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:47:14,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12] total 21 [2023-11-06 22:47:14,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652174275] [2023-11-06 22:47:14,467 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:47:14,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-06 22:47:14,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:47:14,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-06 22:47:14,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=616, Unknown=0, NotChecked=0, Total=756 [2023-11-06 22:47:14,471 INFO L87 Difference]: Start difference. First operand 28 states and 36 transitions. Second operand has 22 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 19 states have internal predecessors, (38), 4 states have call successors, (10), 4 states have call predecessors, (10), 6 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-06 22:47:29,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:47:29,877 INFO L93 Difference]: Finished difference Result 67 states and 81 transitions. [2023-11-06 22:47:29,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-06 22:47:29,882 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 19 states have internal predecessors, (38), 4 states have call successors, (10), 4 states have call predecessors, (10), 6 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) Word has length 44 [2023-11-06 22:47:29,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:47:29,883 INFO L225 Difference]: With dead ends: 67 [2023-11-06 22:47:29,884 INFO L226 Difference]: Without dead ends: 65 [2023-11-06 22:47:29,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 36.8s TimeCoverageRelationStatistics Valid=393, Invalid=1587, Unknown=0, NotChecked=0, Total=1980 [2023-11-06 22:47:29,886 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 90 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:47:29,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 154 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-06 22:47:29,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2023-11-06 22:47:29,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 43. [2023-11-06 22:47:29,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 32 states have (on average 1.125) internal successors, (36), 32 states have internal predecessors, (36), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-06 22:47:29,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2023-11-06 22:47:29,900 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 44 [2023-11-06 22:47:29,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:47:29,901 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2023-11-06 22:47:29,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 19 states have internal predecessors, (38), 4 states have call successors, (10), 4 states have call predecessors, (10), 6 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-06 22:47:29,902 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2023-11-06 22:47:29,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-06 22:47:29,904 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:47:29,904 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 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 22:47:29,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/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 (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:47:30,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:47:30,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/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=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt [2023-11-06 22:47:30,309 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:47:30,310 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:47:30,310 INFO L85 PathProgramCache]: Analyzing trace with hash -911757502, now seen corresponding path program 1 times [2023-11-06 22:47:30,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:47:30,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1053026741] [2023-11-06 22:47:30,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:47:30,311 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 22:47:30,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:47:30,312 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/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 22:47:30,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_744f65ba-469d-4322-8013-79f8a3bae41a/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 (5)] Waiting until timeout for monitored process [2023-11-06 22:47:30,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:47:30,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-06 22:47:30,529 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:48:01,117 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 23 proven. 12 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-06 22:48:01,117 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:48:38,821 WARN L293 SmtUtils]: Spent 8.63s on a formula simplification that was a NOOP. DAG size: 111 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-06 22:48:40,421 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-06 22:48:40,422 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:48:40,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1053026741] [2023-11-06 22:48:40,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1053026741] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-06 22:48:40,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:48:40,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2023-11-06 22:48:40,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336793341] [2023-11-06 22:48:40,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:48:40,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:48:40,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:48:40,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:48:40,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2023-11-06 22:48:40,425 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-06 22:49:02,304 WARN L293 SmtUtils]: Spent 10.21s on a formula simplification that was a NOOP. DAG size: 115 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-06 22:49:11,657 WARN L293 SmtUtils]: Spent 8.16s on a formula simplification that was a NOOP. DAG size: 114 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-06 22:49:21,925 WARN L293 SmtUtils]: Spent 9.11s on a formula simplification that was a NOOP. DAG size: 117 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)