./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-79.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-79.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3427cd04e63c47ddeaec1dc1bec16a594ae04a31865909e3272379057690f9aa --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:26:49,196 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:26:49,316 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:26:49,328 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:26:49,328 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:26:49,364 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:26:49,371 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:26:49,372 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:26:49,373 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:26:49,378 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:26:49,378 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:26:49,379 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:26:49,379 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:26:49,381 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:26:49,381 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:26:49,382 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:26:49,382 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:26:49,383 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:26:49,383 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:26:49,383 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:26:49,384 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:26:49,384 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:26:49,385 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:26:49,385 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:26:49,386 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:26:49,386 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:26:49,387 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:26:49,387 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:26:49,388 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:26:49,388 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:26:49,389 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:26:49,390 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:26:49,390 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:26:49,390 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:26:49,390 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:26:49,391 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:26:49,391 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:26:49,391 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:26:49,391 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:26:49,392 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_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3427cd04e63c47ddeaec1dc1bec16a594ae04a31865909e3272379057690f9aa [2023-11-12 02:26:49,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:26:49,749 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:26:49,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:26:49,753 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:26:49,754 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:26:49,755 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-79.i [2023-11-12 02:26:52,906 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:26:53,148 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:26:53,149 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-79.i [2023-11-12 02:26:53,158 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/data/a12188306/de0e556f8d374ab19c95af609dd83eb8/FLAGaff3240b9 [2023-11-12 02:26:53,173 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/data/a12188306/de0e556f8d374ab19c95af609dd83eb8 [2023-11-12 02:26:53,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:26:53,178 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:26:53,180 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:26:53,180 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:26:53,186 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:26:53,187 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:26:53" (1/1) ... [2023-11-12 02:26:53,188 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d9405de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:53, skipping insertion in model container [2023-11-12 02:26:53,188 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:26:53" (1/1) ... [2023-11-12 02:26:53,223 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:26:53,399 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_dd261a1f-2015-48db-a9e4-089d46b9f718/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-79.i[913,926] [2023-11-12 02:26:53,441 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:26:53,455 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:26:53,469 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_dd261a1f-2015-48db-a9e4-089d46b9f718/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-79.i[913,926] [2023-11-12 02:26:53,492 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:26:53,510 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:26:53,511 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:53 WrapperNode [2023-11-12 02:26:53,511 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:26:53,512 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:26:53,513 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:26:53,513 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:26:53,521 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:53" (1/1) ... [2023-11-12 02:26:53,531 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:53" (1/1) ... [2023-11-12 02:26:53,563 INFO L138 Inliner]: procedures = 26, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 111 [2023-11-12 02:26:53,564 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:26:53,565 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:26:53,565 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:26:53,565 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:26:53,575 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:53" (1/1) ... [2023-11-12 02:26:53,576 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:53" (1/1) ... [2023-11-12 02:26:53,579 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:53" (1/1) ... [2023-11-12 02:26:53,579 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:53" (1/1) ... [2023-11-12 02:26:53,587 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:53" (1/1) ... [2023-11-12 02:26:53,591 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:53" (1/1) ... [2023-11-12 02:26:53,593 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:53" (1/1) ... [2023-11-12 02:26:53,595 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:53" (1/1) ... [2023-11-12 02:26:53,598 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:26:53,600 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:26:53,600 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:26:53,600 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:26:53,601 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:53" (1/1) ... [2023-11-12 02:26:53,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:26:53,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:26:53,669 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:26:53,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:26:53,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:26:53,722 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:26:53,723 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:26:53,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:26:53,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:26:53,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:26:53,862 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:26:53,865 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:26:54,254 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:26:54,270 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:26:54,271 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:26:54,274 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:26:54 BoogieIcfgContainer [2023-11-12 02:26:54,274 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:26:54,278 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:26:54,280 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:26:54,285 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:26:54,286 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:26:53" (1/3) ... [2023-11-12 02:26:54,287 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c1b8eea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:26:54, skipping insertion in model container [2023-11-12 02:26:54,287 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:53" (2/3) ... [2023-11-12 02:26:54,289 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c1b8eea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:26:54, skipping insertion in model container [2023-11-12 02:26:54,289 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:26:54" (3/3) ... [2023-11-12 02:26:54,291 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-79.i [2023-11-12 02:26:54,308 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:26:54,308 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:26:54,358 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:26:54,364 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@798e10e6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:26:54,364 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:26:54,369 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 36 states have (on average 1.3888888888888888) internal successors, (50), 37 states have internal predecessors, (50), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-12 02:26:54,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-12 02:26:54,379 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:26:54,380 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:26:54,380 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:26:54,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:54,385 INFO L85 PathProgramCache]: Analyzing trace with hash -2110718111, now seen corresponding path program 1 times [2023-11-12 02:26:54,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:54,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796221607] [2023-11-12 02:26:54,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:54,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:54,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:54,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:26:54,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796221607] [2023-11-12 02:26:54,574 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-12 02:26:54,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [888812655] [2023-11-12 02:26:54,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:54,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:26:54,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:26:54,579 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:26:54,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:26:54,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:54,716 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 02:26:54,724 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:26:54,762 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2023-11-12 02:26:54,763 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:26:54,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [888812655] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:26:54,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:26:54,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:26:54,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076542165] [2023-11-12 02:26:54,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:26:54,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:26:54,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:26:54,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:26:54,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:26:54,809 INFO L87 Difference]: Start difference. First operand has 50 states, 36 states have (on average 1.3888888888888888) internal successors, (50), 37 states have internal predecessors, (50), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-12 02:26:54,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:26:54,842 INFO L93 Difference]: Finished difference Result 93 states and 149 transitions. [2023-11-12 02:26:54,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:26:54,847 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 79 [2023-11-12 02:26:54,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:26:54,859 INFO L225 Difference]: With dead ends: 93 [2023-11-12 02:26:54,859 INFO L226 Difference]: Without dead ends: 46 [2023-11-12 02:26:54,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:26:54,874 INFO L413 NwaCegarLoop]: 65 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, 65 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:26:54,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:26:54,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-11-12 02:26:54,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-11-12 02:26:54,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 33 states have (on average 1.303030303030303) internal successors, (43), 33 states have internal predecessors, (43), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-12 02:26:54,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 65 transitions. [2023-11-12 02:26:54,920 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 65 transitions. Word has length 79 [2023-11-12 02:26:54,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:26:54,920 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 65 transitions. [2023-11-12 02:26:54,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-12 02:26:54,921 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 65 transitions. [2023-11-12 02:26:54,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-12 02:26:54,925 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:26:54,926 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:26:54,931 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-12 02:26:55,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:26:55,129 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:26:55,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:55,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1428207769, now seen corresponding path program 1 times [2023-11-12 02:26:55,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:55,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810022075] [2023-11-12 02:26:55,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:55,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:55,194 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:26:55,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1666817984] [2023-11-12 02:26:55,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:55,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:26:55,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:26:55,196 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:26:55,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:26:55,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:55,386 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:26:55,393 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:26:55,512 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-12 02:26:55,513 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:26:55,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:26:55,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810022075] [2023-11-12 02:26:55,513 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:26:55,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666817984] [2023-11-12 02:26:55,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1666817984] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:26:55,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:26:55,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:26:55,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158600803] [2023-11-12 02:26:55,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:26:55,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:26:55,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:26:55,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:26:55,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:26:55,517 INFO L87 Difference]: Start difference. First operand 46 states and 65 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-12 02:26:55,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:26:55,582 INFO L93 Difference]: Finished difference Result 130 states and 185 transitions. [2023-11-12 02:26:55,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:26:55,583 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 79 [2023-11-12 02:26:55,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:26:55,585 INFO L225 Difference]: With dead ends: 130 [2023-11-12 02:26:55,586 INFO L226 Difference]: Without dead ends: 87 [2023-11-12 02:26:55,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:26:55,588 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 61 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:26:55,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 278 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:26:55,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-11-12 02:26:55,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 48. [2023-11-12 02:26:55,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 35 states have internal predecessors, (45), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-12 02:26:55,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 67 transitions. [2023-11-12 02:26:55,604 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 67 transitions. Word has length 79 [2023-11-12 02:26:55,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:26:55,609 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 67 transitions. [2023-11-12 02:26:55,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-12 02:26:55,610 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 67 transitions. [2023-11-12 02:26:55,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-12 02:26:55,612 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:26:55,612 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:26:55,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:26:55,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:26:55,813 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:26:55,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:55,814 INFO L85 PathProgramCache]: Analyzing trace with hash -350399127, now seen corresponding path program 1 times [2023-11-12 02:26:55,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:55,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835936585] [2023-11-12 02:26:55,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:55,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:55,855 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:26:55,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1078070822] [2023-11-12 02:26:55,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:55,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:26:55,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:26:55,857 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:26:55,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:26:55,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:55,992 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:26:56,008 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:26:56,678 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-12 02:26:56,678 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:26:56,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:26:56,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835936585] [2023-11-12 02:26:56,679 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:26:56,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078070822] [2023-11-12 02:26:56,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1078070822] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:26:56,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:26:56,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:26:56,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426994524] [2023-11-12 02:26:56,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:26:56,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:26:56,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:26:56,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:26:56,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:26:56,683 INFO L87 Difference]: Start difference. First operand 48 states and 67 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-12 02:26:56,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:26:56,779 INFO L93 Difference]: Finished difference Result 103 states and 142 transitions. [2023-11-12 02:26:56,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:26:56,780 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 80 [2023-11-12 02:26:56,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:26:56,787 INFO L225 Difference]: With dead ends: 103 [2023-11-12 02:26:56,787 INFO L226 Difference]: Without dead ends: 58 [2023-11-12 02:26:56,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:26:56,794 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 14 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:26:56,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 189 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:26:56,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-11-12 02:26:56,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 46. [2023-11-12 02:26:56,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 33 states have internal predecessors, (42), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-12 02:26:56,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 64 transitions. [2023-11-12 02:26:56,812 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 64 transitions. Word has length 80 [2023-11-12 02:26:56,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:26:56,813 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 64 transitions. [2023-11-12 02:26:56,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-12 02:26:56,813 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 64 transitions. [2023-11-12 02:26:56,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-12 02:26:56,815 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:26:56,815 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:26:56,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:26:57,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:26:57,022 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:26:57,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:57,022 INFO L85 PathProgramCache]: Analyzing trace with hash -2045422078, now seen corresponding path program 1 times [2023-11-12 02:26:57,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:57,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361766377] [2023-11-12 02:26:57,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:57,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:57,089 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:26:57,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [954429000] [2023-11-12 02:26:57,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:57,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:26:57,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:26:57,100 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:26:57,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 02:26:57,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:57,227 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 02:26:57,237 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:26:57,297 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-12 02:26:57,297 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:26:57,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:26:57,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361766377] [2023-11-12 02:26:57,298 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:26:57,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954429000] [2023-11-12 02:26:57,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [954429000] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:26:57,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:26:57,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:26:57,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458439356] [2023-11-12 02:26:57,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:26:57,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:26:57,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:26:57,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:26:57,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:26:57,303 INFO L87 Difference]: Start difference. First operand 46 states and 64 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-12 02:26:57,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:26:57,502 INFO L93 Difference]: Finished difference Result 95 states and 130 transitions. [2023-11-12 02:26:57,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:26:57,503 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 81 [2023-11-12 02:26:57,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:26:57,507 INFO L225 Difference]: With dead ends: 95 [2023-11-12 02:26:57,508 INFO L226 Difference]: Without dead ends: 52 [2023-11-12 02:26:57,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:26:57,513 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 84 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:26:57,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 111 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:26:57,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-11-12 02:26:57,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2023-11-12 02:26:57,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 36 states have (on average 1.1944444444444444) internal successors, (43), 36 states have internal predecessors, (43), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-12 02:26:57,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 65 transitions. [2023-11-12 02:26:57,527 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 65 transitions. Word has length 81 [2023-11-12 02:26:57,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:26:57,527 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 65 transitions. [2023-11-12 02:26:57,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-12 02:26:57,528 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 65 transitions. [2023-11-12 02:26:57,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-12 02:26:57,529 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:26:57,530 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:26:57,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:26:57,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:26:57,736 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:26:57,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:57,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1358435452, now seen corresponding path program 1 times [2023-11-12 02:26:57,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:57,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44745991] [2023-11-12 02:26:57,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:57,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:57,788 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:26:57,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [870625575] [2023-11-12 02:26:57,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:57,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:26:57,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:26:57,796 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:26:57,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-12 02:26:58,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:26:58,144 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:26:58,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:26:58,245 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:26:58,245 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:26:58,247 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 02:26:58,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-12 02:26:58,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:26:58,463 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-12 02:26:58,467 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:26:58,534 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-12 02:26:58,546 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short13 could not be translated [2023-11-12 02:26:58,553 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short13 could not be translated [2023-11-12 02:26:58,553 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet12 could not be translated [2023-11-12 02:26:58,554 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short13 could not be translated [2023-11-12 02:26:58,554 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet12 could not be translated [2023-11-12 02:26:58,569 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:26:58 BoogieIcfgContainer [2023-11-12 02:26:58,578 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:26:58,584 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:26:58,584 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:26:58,584 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:26:58,585 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:26:54" (3/4) ... [2023-11-12 02:26:58,587 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 02:26:58,589 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:26:58,589 INFO L158 Benchmark]: Toolchain (without parser) took 5411.55ms. Allocated memory is still 153.1MB. Free memory was 115.9MB in the beginning and 67.4MB in the end (delta: 48.5MB). Peak memory consumption was 52.7MB. Max. memory is 16.1GB. [2023-11-12 02:26:58,590 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 119.5MB. Free memory is still 88.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:26:58,590 INFO L158 Benchmark]: CACSL2BoogieTranslator took 332.05ms. Allocated memory is still 153.1MB. Free memory was 115.9MB in the beginning and 103.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 02:26:58,591 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.44ms. Allocated memory is still 153.1MB. Free memory was 103.3MB in the beginning and 101.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:26:58,591 INFO L158 Benchmark]: Boogie Preprocessor took 34.48ms. Allocated memory is still 153.1MB. Free memory was 101.2MB in the beginning and 99.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:26:58,592 INFO L158 Benchmark]: RCFGBuilder took 675.88ms. Allocated memory is still 153.1MB. Free memory was 99.4MB in the beginning and 84.4MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-12 02:26:58,592 INFO L158 Benchmark]: TraceAbstraction took 4305.27ms. Allocated memory is still 153.1MB. Free memory was 83.8MB in the beginning and 67.4MB in the end (delta: 16.5MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. [2023-11-12 02:26:58,593 INFO L158 Benchmark]: Witness Printer took 4.93ms. Allocated memory is still 153.1MB. Free memory is still 67.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:26:58,595 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 119.5MB. Free memory is still 88.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 332.05ms. Allocated memory is still 153.1MB. Free memory was 115.9MB in the beginning and 103.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.44ms. Allocated memory is still 153.1MB. Free memory was 103.3MB in the beginning and 101.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.48ms. Allocated memory is still 153.1MB. Free memory was 101.2MB in the beginning and 99.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 675.88ms. Allocated memory is still 153.1MB. Free memory was 99.4MB in the beginning and 84.4MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4305.27ms. Allocated memory is still 153.1MB. Free memory was 83.8MB in the beginning and 67.4MB in the end (delta: 16.5MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. * Witness Printer took 4.93ms. Allocated memory is still 153.1MB. Free memory is still 67.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet12 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 88, overapproximation of someBinaryFLOATComparisonOperation at line 79. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = -16; [L23] signed char var_1_3 = 0; [L24] signed char var_1_4 = 64; [L25] signed char var_1_5 = 64; [L26] signed long int var_1_6 = -64; [L27] double var_1_8 = 32.5; [L28] double var_1_9 = 1.6; [L29] unsigned short int var_1_10 = 32; [L30] float var_1_11 = 15.5; [L31] unsigned char var_1_12 = 0; [L32] unsigned char var_1_13 = 0; [L33] unsigned short int last_1_var_1_10 = 32; VAL [isInitial=0, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L92] isInitial = 1 [L93] FCALL initially() [L94] COND TRUE 1 [L95] CALL updateLastVariables() [L85] last_1_var_1_10 = var_1_10 VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L95] RET updateLastVariables() [L96] CALL updateVariables() [L65] var_1_3 = __VERIFIER_nondet_char() [L66] CALL assume_abort_if_not(var_1_3 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L66] RET assume_abort_if_not(var_1_3 >= -63) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L67] CALL assume_abort_if_not(var_1_3 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L67] RET assume_abort_if_not(var_1_3 <= 63) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=64, var_1_5=64, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L68] var_1_4 = __VERIFIER_nondet_char() [L69] CALL assume_abort_if_not(var_1_4 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=64, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=64, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L69] RET assume_abort_if_not(var_1_4 >= -1) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=64, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L70] CALL assume_abort_if_not(var_1_4 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=64, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=64, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L70] RET assume_abort_if_not(var_1_4 <= 126) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=64, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L71] var_1_5 = __VERIFIER_nondet_char() [L72] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L72] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L73] CALL assume_abort_if_not(var_1_5 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L73] RET assume_abort_if_not(var_1_5 <= 126) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=65/2, var_1_9=8/5] [L74] var_1_8 = __VERIFIER_nondet_double() [L75] CALL assume_abort_if_not((var_1_8 >= -922337.2036854776000e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=2, var_1_9=8/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=2, var_1_9=8/5] [L75] RET assume_abort_if_not((var_1_8 >= -922337.2036854776000e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=2, var_1_9=8/5] [L76] var_1_9 = __VERIFIER_nondet_double() [L77] CALL assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=2, var_1_9=3] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=2, var_1_9=3] [L77] RET assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=31/2, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=2, var_1_9=3] [L78] var_1_11 = __VERIFIER_nondet_float() [L79] CALL assume_abort_if_not((var_1_11 >= -922337.2036854776000e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854776000e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=4, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=2, var_1_9=3] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=4, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=2, var_1_9=3] [L79] RET assume_abort_if_not((var_1_11 >= -922337.2036854776000e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854776000e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=4, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=2, var_1_9=3] [L80] var_1_13 = __VERIFIER_nondet_uchar() [L81] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=4, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=2, var_1_9=3] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=4, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=2, var_1_9=3] [L81] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=4, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=2, var_1_9=3] [L82] CALL assume_abort_if_not(var_1_13 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=4, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=2, var_1_9=3] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=4, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=2, var_1_9=3] [L82] RET assume_abort_if_not(var_1_13 <= 0) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=4, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=2, var_1_9=3] [L96] RET updateVariables() [L97] CALL step() [L37] signed long int stepLocal_0 = (((var_1_5) > (last_1_var_1_10)) ? (var_1_5) : (last_1_var_1_10)); VAL [isInitial=1, last_1_var_1_10=32, stepLocal_0=32, var_1_10=32, var_1_11=4, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=2, var_1_9=3] [L38] EXPR last_1_var_1_10 >> var_1_3 VAL [isInitial=1, last_1_var_1_10=32, stepLocal_0=32, var_1_10=32, var_1_11=4, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=-64, var_1_8=2, var_1_9=3] [L38] COND FALSE !(stepLocal_0 <= (var_1_4 * (last_1_var_1_10 >> var_1_3))) [L45] var_1_6 = var_1_5 VAL [isInitial=1, last_1_var_1_10=32, stepLocal_0=32, var_1_10=32, var_1_11=4, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=0, var_1_8=2, var_1_9=3] [L47] signed long int stepLocal_1 = var_1_5 + var_1_6; VAL [isInitial=1, last_1_var_1_10=32, stepLocal_0=32, stepLocal_1=0, var_1_10=32, var_1_11=4, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=0, var_1_8=2, var_1_9=3] [L48] COND FALSE !(var_1_11 < var_1_9) VAL [isInitial=1, last_1_var_1_10=32, stepLocal_0=32, stepLocal_1=0, var_1_10=32, var_1_11=4, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=0, var_1_8=2, var_1_9=3] [L55] var_1_12 = var_1_13 VAL [isInitial=1, last_1_var_1_10=32, stepLocal_0=32, stepLocal_1=0, var_1_10=32, var_1_11=4, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=0, var_1_8=2, var_1_9=3] [L56] COND TRUE ! var_1_12 VAL [isInitial=1, last_1_var_1_10=32, stepLocal_0=32, stepLocal_1=0, var_1_10=32, var_1_11=4, var_1_12=0, var_1_13=0, var_1_1=-16, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=0, var_1_8=2, var_1_9=3] [L57] COND TRUE ! var_1_12 [L58] var_1_1 = (var_1_3 + -32) VAL [isInitial=1, last_1_var_1_10=32, stepLocal_0=32, stepLocal_1=0, var_1_10=32, var_1_11=4, var_1_12=0, var_1_13=0, var_1_1=-32, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=0, var_1_8=2, var_1_9=3] [L97] RET step() [L98] CALL, EXPR property() [L88] EXPR ((! var_1_12) ? ((! var_1_12) ? (var_1_1 == ((signed char) (var_1_3 + -32))) : (var_1_1 == ((signed char) (var_1_4 - ((((var_1_5) < (16)) ? (var_1_5) : (16))))))) : 1) && ((((((var_1_5) > (last_1_var_1_10)) ? (var_1_5) : (last_1_var_1_10))) <= (var_1_4 * (last_1_var_1_10 >> var_1_3))) ? (((- var_1_8) >= var_1_9) ? (var_1_6 == ((signed long int) var_1_4)) : (var_1_6 == ((signed long int) var_1_5))) : (var_1_6 == ((signed long int) var_1_5))) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=4, var_1_12=0, var_1_13=0, var_1_1=-32, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=0, var_1_8=2, var_1_9=3] [L88] EXPR last_1_var_1_10 >> var_1_3 VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=4, var_1_12=0, var_1_13=0, var_1_1=-32, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=0, var_1_8=2, var_1_9=3] [L88] EXPR ((! var_1_12) ? ((! var_1_12) ? (var_1_1 == ((signed char) (var_1_3 + -32))) : (var_1_1 == ((signed char) (var_1_4 - ((((var_1_5) < (16)) ? (var_1_5) : (16))))))) : 1) && ((((((var_1_5) > (last_1_var_1_10)) ? (var_1_5) : (last_1_var_1_10))) <= (var_1_4 * (last_1_var_1_10 >> var_1_3))) ? (((- var_1_8) >= var_1_9) ? (var_1_6 == ((signed long int) var_1_4)) : (var_1_6 == ((signed long int) var_1_5))) : (var_1_6 == ((signed long int) var_1_5))) VAL [isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=4, var_1_12=0, var_1_13=0, var_1_1=-32, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=0, var_1_8=2, var_1_9=3] [L88-L89] return ((((! var_1_12) ? ((! var_1_12) ? (var_1_1 == ((signed char) (var_1_3 + -32))) : (var_1_1 == ((signed char) (var_1_4 - ((((var_1_5) < (16)) ? (var_1_5) : (16))))))) : 1) && ((((((var_1_5) > (last_1_var_1_10)) ? (var_1_5) : (last_1_var_1_10))) <= (var_1_4 * (last_1_var_1_10 >> var_1_3))) ? (((- var_1_8) >= var_1_9) ? (var_1_6 == ((signed long int) var_1_4)) : (var_1_6 == ((signed long int) var_1_5))) : (var_1_6 == ((signed long int) var_1_5)))) && ((var_1_11 < var_1_9) ? (((var_1_5 + var_1_6) <= (~ (var_1_6 % -32))) ? (var_1_10 == ((unsigned short int) var_1_5)) : (var_1_10 == ((unsigned short int) var_1_5))) : 1)) && (var_1_12 == ((unsigned char) var_1_13)) ; [L98] RET, EXPR property() [L98] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=4, var_1_12=0, var_1_13=0, var_1_1=-32, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=0, var_1_8=2, var_1_9=3] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=32, var_1_10=32, var_1_11=4, var_1_12=0, var_1_13=0, var_1_1=-32, var_1_3=0, var_1_4=-1, var_1_5=0, var_1_6=0, var_1_8=2, var_1_9=3] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 50 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.1s, OverallIterations: 5, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 161 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 159 mSDsluCounter, 643 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 346 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 117 IncrementalHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 297 mSDtfsCounter, 117 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 324 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=0, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 53 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 480 NumberOfCodeBlocks, 480 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 315 ConstructedInterpolants, 0 QuantifiedInterpolants, 388 SizeOfPredicates, 8 NumberOfNonLiveVariables, 801 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 880/880 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-12 02:26:58,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-79.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3427cd04e63c47ddeaec1dc1bec16a594ae04a31865909e3272379057690f9aa --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:27:01,404 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:27:01,545 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-12 02:27:01,555 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:27:01,557 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:27:01,608 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:27:01,609 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:27:01,609 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:27:01,611 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:27:01,617 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:27:01,618 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:27:01,618 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:27:01,619 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:27:01,621 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:27:01,622 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:27:01,622 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:27:01,623 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:27:01,623 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:27:01,624 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:27:01,625 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:27:01,625 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:27:01,626 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:27:01,627 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 02:27:01,627 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 02:27:01,628 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:27:01,628 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:27:01,628 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:27:01,629 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:27:01,629 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:27:01,630 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:27:01,631 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:27:01,632 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:27:01,632 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:27:01,633 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:27:01,633 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-12 02:27:01,633 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 02:27:01,633 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:27:01,634 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:27:01,634 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:27:01,635 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:27:01,635 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-12 02:27:01,636 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:27:01,636 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_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3427cd04e63c47ddeaec1dc1bec16a594ae04a31865909e3272379057690f9aa [2023-11-12 02:27:02,115 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:27:02,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:27:02,143 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:27:02,145 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:27:02,145 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:27:02,147 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-79.i [2023-11-12 02:27:05,437 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:27:05,764 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:27:05,766 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-79.i [2023-11-12 02:27:05,779 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/data/5358770ee/f03175e060d84018910feb7546bd3c48/FLAGe2b1a17f9 [2023-11-12 02:27:05,798 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/data/5358770ee/f03175e060d84018910feb7546bd3c48 [2023-11-12 02:27:05,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:27:05,802 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:27:05,805 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:27:05,805 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:27:05,811 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:27:05,811 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:27:05" (1/1) ... [2023-11-12 02:27:05,813 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44806c7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:05, skipping insertion in model container [2023-11-12 02:27:05,813 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:27:05" (1/1) ... [2023-11-12 02:27:05,853 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:27:06,009 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_dd261a1f-2015-48db-a9e4-089d46b9f718/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-79.i[913,926] [2023-11-12 02:27:06,085 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:27:06,112 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:27:06,134 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_dd261a1f-2015-48db-a9e4-089d46b9f718/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-79.i[913,926] [2023-11-12 02:27:06,174 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:27:06,202 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:27:06,202 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:06 WrapperNode [2023-11-12 02:27:06,203 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:27:06,204 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:27:06,205 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:27:06,205 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:27:06,214 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:06" (1/1) ... [2023-11-12 02:27:06,241 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:06" (1/1) ... [2023-11-12 02:27:06,283 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 95 [2023-11-12 02:27:06,286 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:27:06,287 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:27:06,287 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:27:06,288 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:27:06,298 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:06" (1/1) ... [2023-11-12 02:27:06,298 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:06" (1/1) ... [2023-11-12 02:27:06,313 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:06" (1/1) ... [2023-11-12 02:27:06,313 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:06" (1/1) ... [2023-11-12 02:27:06,329 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:06" (1/1) ... [2023-11-12 02:27:06,340 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:06" (1/1) ... [2023-11-12 02:27:06,344 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:06" (1/1) ... [2023-11-12 02:27:06,355 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:06" (1/1) ... [2023-11-12 02:27:06,365 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:27:06,367 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:27:06,367 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:27:06,368 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:27:06,369 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:06" (1/1) ... [2023-11-12 02:27:06,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:27:06,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:27:06,415 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:27:06,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:27:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:27:06,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 02:27:06,468 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:27:06,468 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:27:06,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:27:06,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:27:06,570 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:27:06,572 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:27:07,310 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:27:07,317 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:27:07,318 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:27:07,320 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:27:07 BoogieIcfgContainer [2023-11-12 02:27:07,320 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:27:07,323 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:27:07,323 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:27:07,327 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:27:07,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:27:05" (1/3) ... [2023-11-12 02:27:07,328 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c85e02d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:27:07, skipping insertion in model container [2023-11-12 02:27:07,329 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:06" (2/3) ... [2023-11-12 02:27:07,329 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c85e02d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:27:07, skipping insertion in model container [2023-11-12 02:27:07,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:27:07" (3/3) ... [2023-11-12 02:27:07,331 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-79.i [2023-11-12 02:27:07,352 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:27:07,352 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:27:07,405 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:27:07,412 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@702ad7f4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:27:07,413 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:27:07,417 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 32 states have internal predecessors, (42), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-12 02:27:07,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-12 02:27:07,430 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:27:07,431 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:07,431 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:27:07,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:07,438 INFO L85 PathProgramCache]: Analyzing trace with hash 57112054, now seen corresponding path program 1 times [2023-11-12 02:27:07,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:27:07,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1553072478] [2023-11-12 02:27:07,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:07,454 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:27:07,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:27:07,498 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 02:27:07,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-12 02:27:07,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:07,703 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 02:27:07,712 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:27:07,755 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-11-12 02:27:07,755 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:27:07,756 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:27:07,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1553072478] [2023-11-12 02:27:07,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1553072478] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:07,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:27:07,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:27:07,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570108112] [2023-11-12 02:27:07,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:07,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:27:07,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:27:07,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:27:07,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:27:07,800 INFO L87 Difference]: Start difference. First operand has 45 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 32 states have internal predecessors, (42), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-12 02:27:07,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:27:07,833 INFO L93 Difference]: Finished difference Result 83 states and 133 transitions. [2023-11-12 02:27:07,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:27:07,835 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 76 [2023-11-12 02:27:07,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:27:07,844 INFO L225 Difference]: With dead ends: 83 [2023-11-12 02:27:07,844 INFO L226 Difference]: Without dead ends: 41 [2023-11-12 02:27:07,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:27:07,855 INFO L413 NwaCegarLoop]: 57 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, 57 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:27:07,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:27:07,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-11-12 02:27:07,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2023-11-12 02:27:07,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 28 states have (on average 1.25) internal successors, (35), 28 states have internal predecessors, (35), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-12 02:27:07,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 57 transitions. [2023-11-12 02:27:07,924 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 57 transitions. Word has length 76 [2023-11-12 02:27:07,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:27:07,924 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 57 transitions. [2023-11-12 02:27:07,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-12 02:27:07,925 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 57 transitions. [2023-11-12 02:27:07,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-12 02:27:07,929 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:27:07,929 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:07,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-12 02:27:08,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:27:08,130 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:27:08,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:08,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1491049392, now seen corresponding path program 1 times [2023-11-12 02:27:08,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:27:08,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [283421825] [2023-11-12 02:27:08,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:08,133 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:27:08,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:27:08,137 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 02:27:08,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-12 02:27:08,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:08,394 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:27:08,400 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:27:08,577 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-12 02:27:08,577 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:27:08,577 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:27:08,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [283421825] [2023-11-12 02:27:08,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [283421825] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:08,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:27:08,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:27:08,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094743630] [2023-11-12 02:27:08,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:08,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:27:08,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:27:08,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:27:08,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:27:08,582 INFO L87 Difference]: Start difference. First operand 41 states and 57 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-12 02:27:09,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:27:09,164 INFO L93 Difference]: Finished difference Result 85 states and 116 transitions. [2023-11-12 02:27:09,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:27:09,172 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 76 [2023-11-12 02:27:09,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:27:09,174 INFO L225 Difference]: With dead ends: 85 [2023-11-12 02:27:09,174 INFO L226 Difference]: Without dead ends: 47 [2023-11-12 02:27:09,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:27:09,177 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 71 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-12 02:27:09,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 92 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-12 02:27:09,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-11-12 02:27:09,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2023-11-12 02:27:09,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 31 states have internal predecessors, (36), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-12 02:27:09,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 58 transitions. [2023-11-12 02:27:09,192 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 58 transitions. Word has length 76 [2023-11-12 02:27:09,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:27:09,193 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 58 transitions. [2023-11-12 02:27:09,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-12 02:27:09,193 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 58 transitions. [2023-11-12 02:27:09,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-12 02:27:09,195 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:27:09,196 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:09,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:27:09,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:27:09,410 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:27:09,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:09,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1257669406, now seen corresponding path program 1 times [2023-11-12 02:27:09,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:27:09,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1975648465] [2023-11-12 02:27:09,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:09,412 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:27:09,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:27:09,414 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 02:27:09,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd261a1f-2015-48db-a9e4-089d46b9f718/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-12 02:27:09,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:09,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-12 02:27:09,566 INFO L285 TraceCheckSpWp]: Computing forward predicates...