./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive/gcd02.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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_7d192144-76e9-47f3-b06e-52fabd4019ad/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d192144-76e9-47f3-b06e-52fabd4019ad/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_7d192144-76e9-47f3-b06e-52fabd4019ad/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d192144-76e9-47f3-b06e-52fabd4019ad/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive/gcd02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d192144-76e9-47f3-b06e-52fabd4019ad/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d192144-76e9-47f3-b06e-52fabd4019ad/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5840bf8cb045a250261e3957017079dce43a53700f7c91e31c16b36d5b980e00 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:09:16,070 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:09:16,168 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d192144-76e9-47f3-b06e-52fabd4019ad/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-12 02:09:16,175 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:09:16,176 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:09:16,218 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:09:16,218 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:09:16,219 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:09:16,220 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:09:16,225 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:09:16,227 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:09:16,227 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:09:16,228 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:09:16,230 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:09:16,230 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:09:16,231 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:09:16,231 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:09:16,232 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:09:16,232 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:09:16,233 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:09:16,233 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:09:16,234 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:09:16,234 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 02:09:16,235 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:09:16,235 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:09:16,236 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:09:16,236 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:09:16,237 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:09:16,238 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:09:16,238 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:09:16,240 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:09:16,250 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:09:16,250 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:09:16,250 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:09:16,251 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:09:16,251 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:09:16,251 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:09:16,252 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:09:16,252 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:09:16,253 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:09:16,253 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:09:16,254 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_7d192144-76e9-47f3-b06e-52fabd4019ad/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d192144-76e9-47f3-b06e-52fabd4019ad/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5840bf8cb045a250261e3957017079dce43a53700f7c91e31c16b36d5b980e00 [2023-11-12 02:09:16,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:09:16,614 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:09:16,617 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:09:16,619 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:09:16,620 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:09:16,622 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d192144-76e9-47f3-b06e-52fabd4019ad/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/recursive/gcd02.c [2023-11-12 02:09:19,621 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:09:19,843 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:09:19,844 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d192144-76e9-47f3-b06e-52fabd4019ad/sv-benchmarks/c/recursive/gcd02.c [2023-11-12 02:09:19,856 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d192144-76e9-47f3-b06e-52fabd4019ad/bin/uautomizer-verify-uTZkv6EMXl/data/bc230a1ae/077935d67465443696f67fd436fa3df6/FLAG9cb8089c9 [2023-11-12 02:09:19,872 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d192144-76e9-47f3-b06e-52fabd4019ad/bin/uautomizer-verify-uTZkv6EMXl/data/bc230a1ae/077935d67465443696f67fd436fa3df6 [2023-11-12 02:09:19,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:09:19,876 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:09:19,878 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:09:19,878 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:09:19,883 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:09:19,884 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:09:19" (1/1) ... [2023-11-12 02:09:19,885 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d9807e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:19, skipping insertion in model container [2023-11-12 02:09:19,886 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:09:19" (1/1) ... [2023-11-12 02:09:19,907 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:09:20,117 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:09:20,133 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:09:20,167 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:09:20,182 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:09:20,182 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:20 WrapperNode [2023-11-12 02:09:20,183 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:09:20,184 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:09:20,184 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:09:20,185 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:09:20,194 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:20" (1/1) ... [2023-11-12 02:09:20,202 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:20" (1/1) ... [2023-11-12 02:09:20,225 INFO L138 Inliner]: procedures = 14, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 47 [2023-11-12 02:09:20,225 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:09:20,227 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:09:20,228 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:09:20,229 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:09:20,238 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:20" (1/1) ... [2023-11-12 02:09:20,239 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:20" (1/1) ... [2023-11-12 02:09:20,251 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:20" (1/1) ... [2023-11-12 02:09:20,252 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:20" (1/1) ... [2023-11-12 02:09:20,262 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:20" (1/1) ... [2023-11-12 02:09:20,270 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:20" (1/1) ... [2023-11-12 02:09:20,271 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:20" (1/1) ... [2023-11-12 02:09:20,272 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:20" (1/1) ... [2023-11-12 02:09:20,274 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:09:20,276 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:09:20,277 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:09:20,277 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:09:20,278 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:20" (1/1) ... [2023-11-12 02:09:20,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:09:20,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d192144-76e9-47f3-b06e-52fabd4019ad/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:09:20,314 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d192144-76e9-47f3-b06e-52fabd4019ad/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:09:20,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d192144-76e9-47f3-b06e-52fabd4019ad/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:09:20,355 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-12 02:09:20,356 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-12 02:09:20,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:09:20,357 INFO L130 BoogieDeclarations]: Found specification of procedure gcd [2023-11-12 02:09:20,358 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd [2023-11-12 02:09:20,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:09:20,358 INFO L130 BoogieDeclarations]: Found specification of procedure divides [2023-11-12 02:09:20,359 INFO L138 BoogieDeclarations]: Found implementation of procedure divides [2023-11-12 02:09:20,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:09:20,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:09:20,425 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:09:20,428 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:09:20,637 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:09:20,645 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:09:20,645 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:09:20,647 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:09:20 BoogieIcfgContainer [2023-11-12 02:09:20,647 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:09:20,650 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:09:20,650 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:09:20,654 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:09:20,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:09:19" (1/3) ... [2023-11-12 02:09:20,655 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aa6b350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:09:20, skipping insertion in model container [2023-11-12 02:09:20,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:20" (2/3) ... [2023-11-12 02:09:20,656 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aa6b350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:09:20, skipping insertion in model container [2023-11-12 02:09:20,656 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:09:20" (3/3) ... [2023-11-12 02:09:20,658 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd02.c [2023-11-12 02:09:20,679 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:09:20,679 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-12 02:09:20,728 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:09:20,734 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;@5b680388, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:09:20,735 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-12 02:09:20,738 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 33 states have (on average 1.4545454545454546) internal successors, (48), 39 states have internal predecessors, (48), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-12 02:09:20,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-12 02:09:20,746 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:09:20,746 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:09:20,747 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [dividesErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, dividesErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-12 02:09:20,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:09:20,753 INFO L85 PathProgramCache]: Analyzing trace with hash 961542548, now seen corresponding path program 1 times [2023-11-12 02:09:20,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:09:20,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110424847] [2023-11-12 02:09:20,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:20,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:09:20,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:21,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:09:21,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:09:21,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110424847] [2023-11-12 02:09:21,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110424847] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:09:21,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:09:21,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:09:21,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106972422] [2023-11-12 02:09:21,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:09:21,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:09:21,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:09:21,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:09:21,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:09:21,090 INFO L87 Difference]: Start difference. First operand has 50 states, 33 states have (on average 1.4545454545454546) internal successors, (48), 39 states have internal predecessors, (48), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:09:21,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:09:21,153 INFO L93 Difference]: Finished difference Result 90 states and 117 transitions. [2023-11-12 02:09:21,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:09:21,158 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-12 02:09:21,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:09:21,167 INFO L225 Difference]: With dead ends: 90 [2023-11-12 02:09:21,168 INFO L226 Difference]: Without dead ends: 35 [2023-11-12 02:09:21,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:09:21,181 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 5 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:09:21,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 95 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:09:21,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-12 02:09:21,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2023-11-12 02:09:21,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 27 states have internal predecessors, (29), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-12 02:09:21,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2023-11-12 02:09:21,241 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 11 [2023-11-12 02:09:21,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:09:21,242 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2023-11-12 02:09:21,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:09:21,244 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2023-11-12 02:09:21,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-12 02:09:21,246 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:09:21,247 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:09:21,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:09:21,253 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting gcdErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [dividesErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, dividesErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-12 02:09:21,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:09:21,255 INFO L85 PathProgramCache]: Analyzing trace with hash 961542772, now seen corresponding path program 1 times [2023-11-12 02:09:21,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:09:21,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658598942] [2023-11-12 02:09:21,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:21,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:09:21,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:21,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:09:21,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:09:21,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658598942] [2023-11-12 02:09:21,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658598942] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:09:21,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:09:21,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:09:21,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862998004] [2023-11-12 02:09:21,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:09:21,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:09:21,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:09:21,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:09:21,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:09:21,391 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:09:21,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:09:21,432 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2023-11-12 02:09:21,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:09:21,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-12 02:09:21,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:09:21,434 INFO L225 Difference]: With dead ends: 35 [2023-11-12 02:09:21,444 INFO L226 Difference]: Without dead ends: 34 [2023-11-12 02:09:21,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:09:21,447 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 5 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:09:21,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 55 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:09:21,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-11-12 02:09:21,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2023-11-12 02:09:21,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 26 states have internal predecessors, (28), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-12 02:09:21,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2023-11-12 02:09:21,464 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 11 [2023-11-12 02:09:21,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:09:21,465 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2023-11-12 02:09:21,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:09:21,467 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2023-11-12 02:09:21,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-12 02:09:21,468 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:09:21,469 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:09:21,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:09:21,470 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting gcdErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [dividesErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, dividesErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-12 02:09:21,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:09:21,472 INFO L85 PathProgramCache]: Analyzing trace with hash -256952016, now seen corresponding path program 1 times [2023-11-12 02:09:21,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:09:21,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692260353] [2023-11-12 02:09:21,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:21,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:09:21,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:21,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:09:21,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:09:21,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692260353] [2023-11-12 02:09:21,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692260353] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:09:21,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:09:21,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:09:21,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373418672] [2023-11-12 02:09:21,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:09:21,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:09:21,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:09:21,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:09:21,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:09:21,601 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:09:21,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:09:21,718 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2023-11-12 02:09:21,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:09:21,719 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-12 02:09:21,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:09:21,720 INFO L225 Difference]: With dead ends: 32 [2023-11-12 02:09:21,720 INFO L226 Difference]: Without dead ends: 31 [2023-11-12 02:09:21,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:09:21,723 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 37 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:09:21,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 74 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:09:21,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-11-12 02:09:21,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-11-12 02:09:21,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 25 states have internal predecessors, (27), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-12 02:09:21,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2023-11-12 02:09:21,732 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 12 [2023-11-12 02:09:21,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:09:21,733 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2023-11-12 02:09:21,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:09:21,734 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2023-11-12 02:09:21,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-12 02:09:21,735 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:09:21,735 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:09:21,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:09:21,736 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting gcdErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [dividesErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, dividesErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-12 02:09:21,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:09:21,737 INFO L85 PathProgramCache]: Analyzing trace with hash -256945065, now seen corresponding path program 1 times [2023-11-12 02:09:21,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:09:21,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141431676] [2023-11-12 02:09:21,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:21,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:09:21,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:21,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:09:21,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:09:21,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141431676] [2023-11-12 02:09:21,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141431676] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:09:21,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:09:21,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:09:21,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454460150] [2023-11-12 02:09:21,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:09:21,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:09:21,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:09:21,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:09:21,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:09:21,848 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:09:21,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:09:21,927 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2023-11-12 02:09:21,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:09:21,928 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-12 02:09:21,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:09:21,930 INFO L225 Difference]: With dead ends: 31 [2023-11-12 02:09:21,930 INFO L226 Difference]: Without dead ends: 30 [2023-11-12 02:09:21,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:09:21,932 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 34 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:09:21,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 74 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:09:21,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-11-12 02:09:21,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-11-12 02:09:21,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 24 states have internal predecessors, (26), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-12 02:09:21,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2023-11-12 02:09:21,941 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 12 [2023-11-12 02:09:21,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:09:21,941 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2023-11-12 02:09:21,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:09:21,942 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2023-11-12 02:09:21,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-12 02:09:21,943 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:09:21,943 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:09:21,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:09:21,944 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting dividesErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [dividesErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, dividesErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-12 02:09:21,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:09:21,945 INFO L85 PathProgramCache]: Analyzing trace with hash -758225056, now seen corresponding path program 1 times [2023-11-12 02:09:21,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:09:21,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220158446] [2023-11-12 02:09:21,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:21,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:09:21,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:22,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-12 02:09:22,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:22,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:09:22,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:09:22,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220158446] [2023-11-12 02:09:22,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220158446] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:09:22,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:09:22,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:09:22,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351767237] [2023-11-12 02:09:22,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:09:22,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:09:22,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:09:22,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:09:22,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:09:22,026 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:09:22,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:09:22,049 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2023-11-12 02:09:22,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:09:22,050 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-11-12 02:09:22,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:09:22,051 INFO L225 Difference]: With dead ends: 30 [2023-11-12 02:09:22,051 INFO L226 Difference]: Without dead ends: 29 [2023-11-12 02:09:22,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:09:22,057 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 3 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:09:22,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 57 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:09:22,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-11-12 02:09:22,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-11-12 02:09:22,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 states have internal predecessors, (25), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-12 02:09:22,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2023-11-12 02:09:22,069 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 17 [2023-11-12 02:09:22,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:09:22,069 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2023-11-12 02:09:22,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:09:22,070 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2023-11-12 02:09:22,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-12 02:09:22,071 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:09:22,071 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:09:22,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:09:22,071 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting dividesErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [dividesErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, dividesErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-12 02:09:22,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:09:22,072 INFO L85 PathProgramCache]: Analyzing trace with hash -2030140212, now seen corresponding path program 1 times [2023-11-12 02:09:22,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:09:22,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107904409] [2023-11-12 02:09:22,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:22,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:09:22,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:22,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-12 02:09:22,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:22,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:09:22,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:09:22,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107904409] [2023-11-12 02:09:22,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107904409] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:09:22,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:09:22,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 02:09:22,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964279310] [2023-11-12 02:09:22,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:09:22,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 02:09:22,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:09:22,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 02:09:22,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:09:22,275 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 8 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:09:22,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:09:22,445 INFO L93 Difference]: Finished difference Result 40 states and 46 transitions. [2023-11-12 02:09:22,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 02:09:22,445 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2023-11-12 02:09:22,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:09:22,447 INFO L225 Difference]: With dead ends: 40 [2023-11-12 02:09:22,447 INFO L226 Difference]: Without dead ends: 39 [2023-11-12 02:09:22,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:09:22,448 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 18 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:09:22,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 74 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:09:22,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-11-12 02:09:22,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2023-11-12 02:09:22,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 29 states have (on average 1.103448275862069) internal successors, (32), 30 states have internal predecessors, (32), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-12 02:09:22,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2023-11-12 02:09:22,458 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 18 [2023-11-12 02:09:22,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:09:22,459 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2023-11-12 02:09:22,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:09:22,459 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2023-11-12 02:09:22,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-12 02:09:22,461 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:09:22,461 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:09:22,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:09:22,462 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting dividesErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [dividesErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, dividesErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-12 02:09:22,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:09:22,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1927224192, now seen corresponding path program 1 times [2023-11-12 02:09:22,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:09:22,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099278008] [2023-11-12 02:09:22,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:22,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:09:22,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:22,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-12 02:09:22,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:22,690 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:09:22,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:09:22,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099278008] [2023-11-12 02:09:22,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099278008] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:09:22,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383236556] [2023-11-12 02:09:22,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:22,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:09:22,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d192144-76e9-47f3-b06e-52fabd4019ad/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:09:22,695 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d192144-76e9-47f3-b06e-52fabd4019ad/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:09:22,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d192144-76e9-47f3-b06e-52fabd4019ad/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:09:22,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:22,783 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-12 02:09:22,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:09:23,139 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:09:23,139 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:09:23,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383236556] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:09:23,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:09:23,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 19 [2023-11-12 02:09:23,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108389822] [2023-11-12 02:09:23,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:09:23,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 02:09:23,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:09:23,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:09:23,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2023-11-12 02:09:23,145 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand has 11 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:09:23,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:09:23,388 INFO L93 Difference]: Finished difference Result 46 states and 52 transitions. [2023-11-12 02:09:23,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-12 02:09:23,389 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2023-11-12 02:09:23,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:09:23,390 INFO L225 Difference]: With dead ends: 46 [2023-11-12 02:09:23,391 INFO L226 Difference]: Without dead ends: 31 [2023-11-12 02:09:23,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=448, Unknown=0, NotChecked=0, Total=506 [2023-11-12 02:09:23,393 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 24 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:09:23,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 120 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:09:23,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-11-12 02:09:23,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-11-12 02:09:23,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 25 states have internal predecessors, (26), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-12 02:09:23,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2023-11-12 02:09:23,400 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 24 [2023-11-12 02:09:23,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:09:23,401 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2023-11-12 02:09:23,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:09:23,401 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2023-11-12 02:09:23,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-12 02:09:23,403 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:09:23,403 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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 02:09:23,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d192144-76e9-47f3-b06e-52fabd4019ad/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:09:23,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d192144-76e9-47f3-b06e-52fabd4019ad/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:09:23,614 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting dividesErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [dividesErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, dividesErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-12 02:09:23,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:09:23,614 INFO L85 PathProgramCache]: Analyzing trace with hash -488471538, now seen corresponding path program 1 times [2023-11-12 02:09:23,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:09:23,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358172033] [2023-11-12 02:09:23,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:23,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:09:23,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:23,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-12 02:09:23,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:23,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:09:23,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:23,892 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 02:09:23,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:09:23,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358172033] [2023-11-12 02:09:23,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358172033] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:09:23,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863532873] [2023-11-12 02:09:23,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:23,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:09:23,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d192144-76e9-47f3-b06e-52fabd4019ad/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:09:23,895 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d192144-76e9-47f3-b06e-52fabd4019ad/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:09:23,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d192144-76e9-47f3-b06e-52fabd4019ad/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:09:23,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:23,964 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-12 02:09:23,966 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:09:24,200 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 02:09:24,200 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:09:24,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863532873] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:09:24,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:09:24,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 18 [2023-11-12 02:09:24,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346902182] [2023-11-12 02:09:24,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:09:24,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-12 02:09:24,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:09:24,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-12 02:09:24,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=304, Unknown=0, NotChecked=0, Total=342 [2023-11-12 02:09:24,203 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand has 10 states, 8 states have (on average 2.625) internal successors, (21), 7 states have internal predecessors, (21), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:09:24,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:09:24,370 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2023-11-12 02:09:24,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 02:09:24,371 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 2.625) internal successors, (21), 7 states have internal predecessors, (21), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 28 [2023-11-12 02:09:24,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:09:24,374 INFO L225 Difference]: With dead ends: 43 [2023-11-12 02:09:24,375 INFO L226 Difference]: Without dead ends: 34 [2023-11-12 02:09:24,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=412, Unknown=0, NotChecked=0, Total=462 [2023-11-12 02:09:24,379 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 20 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:09:24,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 124 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:09:24,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-11-12 02:09:24,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2023-11-12 02:09:24,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 24 states have (on average 1.125) internal successors, (27), 25 states have internal predecessors, (27), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-12 02:09:24,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2023-11-12 02:09:24,401 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 28 [2023-11-12 02:09:24,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:09:24,403 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2023-11-12 02:09:24,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 2.625) internal successors, (21), 7 states have internal predecessors, (21), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:09:24,403 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2023-11-12 02:09:24,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-12 02:09:24,405 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:09:24,405 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 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 02:09:24,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d192144-76e9-47f3-b06e-52fabd4019ad/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:09:24,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d192144-76e9-47f3-b06e-52fabd4019ad/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:09:24,613 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting dividesErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [dividesErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, dividesErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-12 02:09:24,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:09:24,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1306744242, now seen corresponding path program 1 times [2023-11-12 02:09:24,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:09:24,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836709553] [2023-11-12 02:09:24,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:24,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:09:24,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:24,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-12 02:09:24,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:24,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:09:24,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:24,852 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-12 02:09:24,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:09:24,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836709553] [2023-11-12 02:09:24,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836709553] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:09:24,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:09:24,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-12 02:09:24,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085983147] [2023-11-12 02:09:24,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:09:24,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 02:09:24,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:09:24,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 02:09:24,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:09:24,855 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand has 9 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:09:25,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:09:25,014 INFO L93 Difference]: Finished difference Result 46 states and 54 transitions. [2023-11-12 02:09:25,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:09:25,015 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 28 [2023-11-12 02:09:25,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:09:25,016 INFO L225 Difference]: With dead ends: 46 [2023-11-12 02:09:25,016 INFO L226 Difference]: Without dead ends: 45 [2023-11-12 02:09:25,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:09:25,017 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 15 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:09:25,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 78 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:09:25,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-11-12 02:09:25,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 44. [2023-11-12 02:09:25,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 33 states have (on average 1.0909090909090908) internal successors, (36), 34 states have internal predecessors, (36), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (10), 6 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-12 02:09:25,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2023-11-12 02:09:25,033 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 28 [2023-11-12 02:09:25,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:09:25,034 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2023-11-12 02:09:25,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 2.857142857142857) internal successors, (20), 6 states have internal predecessors, (20), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:09:25,034 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2023-11-12 02:09:25,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-12 02:09:25,043 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:09:25,043 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 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 02:09:25,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:09:25,043 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting dividesErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [dividesErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, dividesErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-12 02:09:25,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:09:25,044 INFO L85 PathProgramCache]: Analyzing trace with hash 660174604, now seen corresponding path program 1 times [2023-11-12 02:09:25,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:09:25,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695863040] [2023-11-12 02:09:25,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:25,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:09:25,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:25,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-12 02:09:25,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:25,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:09:25,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:25,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:09:25,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:25,533 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-12 02:09:25,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:09:25,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695863040] [2023-11-12 02:09:25,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695863040] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:09:25,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138714339] [2023-11-12 02:09:25,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:25,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:09:25,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d192144-76e9-47f3-b06e-52fabd4019ad/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:09:25,537 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d192144-76e9-47f3-b06e-52fabd4019ad/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:09:25,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d192144-76e9-47f3-b06e-52fabd4019ad/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:09:25,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:25,610 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-12 02:09:25,614 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:09:25,854 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-12 02:09:25,854 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:09:25,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138714339] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:09:25,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:09:25,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [13] total 21 [2023-11-12 02:09:25,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115901304] [2023-11-12 02:09:25,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:09:25,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-12 02:09:25,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:09:25,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-12 02:09:25,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=418, Unknown=0, NotChecked=0, Total=462 [2023-11-12 02:09:25,857 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand has 11 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 7 states have internal predecessors, (25), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:09:26,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:09:26,016 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions. [2023-11-12 02:09:26,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-12 02:09:26,016 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 7 states have internal predecessors, (25), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2023-11-12 02:09:26,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:09:26,017 INFO L225 Difference]: With dead ends: 44 [2023-11-12 02:09:26,017 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 02:09:26,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2023-11-12 02:09:26,019 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 17 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:09:26,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 115 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:09:26,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 02:09:26,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 02:09:26,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:09:26,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 02:09:26,021 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2023-11-12 02:09:26,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:09:26,021 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 02:09:26,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 7 states have internal predecessors, (25), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:09:26,022 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 02:09:26,022 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 02:09:26,024 INFO L805 garLoopResultBuilder]: Registering result SAFE for location dividesErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2023-11-12 02:09:26,025 INFO L805 garLoopResultBuilder]: Registering result SAFE for location dividesErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2023-11-12 02:09:26,025 INFO L805 garLoopResultBuilder]: Registering result SAFE for location gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2023-11-12 02:09:26,025 INFO L805 garLoopResultBuilder]: Registering result SAFE for location gcdErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2023-11-12 02:09:26,026 INFO L805 garLoopResultBuilder]: Registering result SAFE for location gcdErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2023-11-12 02:09:26,026 INFO L805 garLoopResultBuilder]: Registering result SAFE for location gcdErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2023-11-12 02:09:26,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d192144-76e9-47f3-b06e-52fabd4019ad/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:09:26,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d192144-76e9-47f3-b06e-52fabd4019ad/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-12 02:09:26,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-12 02:09:26,421 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2023-11-12 02:09:26,421 INFO L899 garLoopResultBuilder]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2023-11-12 02:09:26,421 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 3) the Hoare annotation is: true [2023-11-12 02:09:26,421 INFO L899 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2023-11-12 02:09:26,422 INFO L899 garLoopResultBuilder]: For program point dividesFINAL(lines 32 40) no Hoare annotation was computed. [2023-11-12 02:09:26,422 INFO L899 garLoopResultBuilder]: For program point dividesErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2023-11-12 02:09:26,422 INFO L899 garLoopResultBuilder]: For program point dividesEXIT(lines 32 40) no Hoare annotation was computed. [2023-11-12 02:09:26,423 INFO L899 garLoopResultBuilder]: For program point dividesErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2023-11-12 02:09:26,423 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 32 40) the Hoare annotation is: true [2023-11-12 02:09:26,424 INFO L899 garLoopResultBuilder]: For program point L39(line 39) no Hoare annotation was computed. [2023-11-12 02:09:26,424 INFO L899 garLoopResultBuilder]: For program point L39-1(line 39) no Hoare annotation was computed. [2023-11-12 02:09:26,425 INFO L895 garLoopResultBuilder]: At program point L39-2(line 39) the Hoare annotation is: (let ((.cse0 (< |divides_#in~n| 1))) (and (or .cse0 (<= divides_~m 2147483646) (< 2147483646 |divides_#in~m|)) (or (< 2147483647 |divides_#in~m|) .cse0 (and (<= 1 divides_~n) (<= divides_~m 2147483647) (<= divides_~n divides_~m))))) [2023-11-12 02:09:26,425 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 38) no Hoare annotation was computed. [2023-11-12 02:09:26,425 INFO L899 garLoopResultBuilder]: For program point L39-3(line 39) no Hoare annotation was computed. [2023-11-12 02:09:26,425 INFO L899 garLoopResultBuilder]: For program point gcdEXIT(lines 17 29) no Hoare annotation was computed. [2023-11-12 02:09:26,425 INFO L899 garLoopResultBuilder]: For program point L25(lines 25 27) no Hoare annotation was computed. [2023-11-12 02:09:26,426 INFO L899 garLoopResultBuilder]: For program point gcdErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2023-11-12 02:09:26,426 INFO L899 garLoopResultBuilder]: For program point gcdErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2023-11-12 02:09:26,426 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 17 29) the Hoare annotation is: true [2023-11-12 02:09:26,426 INFO L899 garLoopResultBuilder]: For program point gcdFINAL(lines 17 29) no Hoare annotation was computed. [2023-11-12 02:09:26,426 INFO L899 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2023-11-12 02:09:26,426 INFO L899 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2023-11-12 02:09:26,427 INFO L899 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2023-11-12 02:09:26,427 INFO L895 garLoopResultBuilder]: At program point L28-2(line 28) the Hoare annotation is: (or (< 2147483647 |gcd_#in~y2|) (and (<= 1 gcd_~y1) (<= gcd_~y1 gcd_~y2) (= gcd_~y1 |gcd_#in~y1|) (<= gcd_~y2 2147483647)) (< 2147483647 |gcd_#in~y1|)) [2023-11-12 02:09:26,427 INFO L899 garLoopResultBuilder]: For program point gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2023-11-12 02:09:26,427 INFO L899 garLoopResultBuilder]: For program point L26-1(line 26) no Hoare annotation was computed. [2023-11-12 02:09:26,427 INFO L899 garLoopResultBuilder]: For program point L28-3(line 28) no Hoare annotation was computed. [2023-11-12 02:09:26,429 INFO L895 garLoopResultBuilder]: At program point L26-2(line 26) the Hoare annotation is: (or (and (<= 1 gcd_~y1) (<= gcd_~y1 (+ gcd_~y2 2147483646)) (= gcd_~y1 |gcd_#in~y1|) (<= (+ gcd_~y2 1) gcd_~y1)) (< 2147483647 |gcd_#in~y2|) (< 2147483647 |gcd_#in~y1|)) [2023-11-12 02:09:26,429 INFO L899 garLoopResultBuilder]: For program point L26-3(line 26) no Hoare annotation was computed. [2023-11-12 02:09:26,429 INFO L902 garLoopResultBuilder]: At program point L20(line 20) the Hoare annotation is: true [2023-11-12 02:09:26,429 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2023-11-12 02:09:26,429 INFO L899 garLoopResultBuilder]: For program point gcdErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2023-11-12 02:09:26,430 INFO L899 garLoopResultBuilder]: For program point L18(lines 18 21) no Hoare annotation was computed. [2023-11-12 02:09:26,430 INFO L899 garLoopResultBuilder]: For program point L18-2(lines 17 29) no Hoare annotation was computed. [2023-11-12 02:09:26,430 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-12 02:09:26,430 INFO L902 garLoopResultBuilder]: At program point L54(line 54) the Hoare annotation is: true [2023-11-12 02:09:26,430 INFO L899 garLoopResultBuilder]: For program point L54-1(line 54) no Hoare annotation was computed. [2023-11-12 02:09:26,430 INFO L895 garLoopResultBuilder]: At program point L52(line 52) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= |ULTIMATE.start_main_~m~0#1| 2147483647)) [2023-11-12 02:09:26,431 INFO L899 garLoopResultBuilder]: For program point L52-1(line 52) no Hoare annotation was computed. [2023-11-12 02:09:26,431 INFO L899 garLoopResultBuilder]: For program point L48(lines 48 50) no Hoare annotation was computed. [2023-11-12 02:09:26,431 INFO L899 garLoopResultBuilder]: For program point L44(lines 44 46) no Hoare annotation was computed. [2023-11-12 02:09:26,432 INFO L899 garLoopResultBuilder]: For program point L42(lines 42 59) no Hoare annotation was computed. [2023-11-12 02:09:26,432 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-12 02:09:26,432 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-12 02:09:26,432 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-12 02:09:26,432 INFO L895 garLoopResultBuilder]: At program point L53(line 53) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= 1 |ULTIMATE.start_main_~z~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 2147483647)) [2023-11-12 02:09:26,433 INFO L899 garLoopResultBuilder]: For program point L53-1(line 53) no Hoare annotation was computed. [2023-11-12 02:09:26,433 INFO L899 garLoopResultBuilder]: For program point L51(lines 51 58) no Hoare annotation was computed. [2023-11-12 02:09:26,433 INFO L899 garLoopResultBuilder]: For program point L53-2(lines 53 57) no Hoare annotation was computed. [2023-11-12 02:09:26,433 INFO L899 garLoopResultBuilder]: For program point L53-3(lines 53 57) no Hoare annotation was computed. [2023-11-12 02:09:26,437 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:09:26,439 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:09:26,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:09:26 BoogieIcfgContainer [2023-11-12 02:09:26,448 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:09:26,449 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:09:26,449 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:09:26,449 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:09:26,450 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:09:20" (3/4) ... [2023-11-12 02:09:26,453 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 02:09:26,457 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure reach_error [2023-11-12 02:09:26,457 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure divides [2023-11-12 02:09:26,458 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure gcd [2023-11-12 02:09:26,466 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-11-12 02:09:26,466 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-12 02:09:26,466 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-12 02:09:26,467 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:09:26,467 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:09:26,558 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d192144-76e9-47f3-b06e-52fabd4019ad/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:09:26,558 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d192144-76e9-47f3-b06e-52fabd4019ad/bin/uautomizer-verify-uTZkv6EMXl/witness.yml [2023-11-12 02:09:26,558 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:09:26,559 INFO L158 Benchmark]: Toolchain (without parser) took 6682.91ms. Allocated memory was 130.0MB in the beginning and 172.0MB in the end (delta: 41.9MB). Free memory was 91.7MB in the beginning and 55.8MB in the end (delta: 36.0MB). Peak memory consumption was 79.5MB. Max. memory is 16.1GB. [2023-11-12 02:09:26,560 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 130.0MB. Free memory was 99.5MB in the beginning and 99.4MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:09:26,560 INFO L158 Benchmark]: CACSL2BoogieTranslator took 305.55ms. Allocated memory is still 130.0MB. Free memory was 91.7MB in the beginning and 81.3MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 02:09:26,561 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.35ms. Allocated memory is still 130.0MB. Free memory was 81.3MB in the beginning and 79.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:09:26,561 INFO L158 Benchmark]: Boogie Preprocessor took 48.65ms. Allocated memory is still 130.0MB. Free memory was 79.4MB in the beginning and 78.7MB in the end (delta: 757.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:09:26,561 INFO L158 Benchmark]: RCFGBuilder took 371.30ms. Allocated memory is still 130.0MB. Free memory was 78.6MB in the beginning and 66.2MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 02:09:26,562 INFO L158 Benchmark]: TraceAbstraction took 5798.02ms. Allocated memory was 130.0MB in the beginning and 172.0MB in the end (delta: 41.9MB). Free memory was 65.7MB in the beginning and 59.9MB in the end (delta: 5.7MB). Peak memory consumption was 48.0MB. Max. memory is 16.1GB. [2023-11-12 02:09:26,562 INFO L158 Benchmark]: Witness Printer took 109.60ms. Allocated memory is still 172.0MB. Free memory was 59.9MB in the beginning and 55.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 02:09:26,565 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 130.0MB. Free memory was 99.5MB in the beginning and 99.4MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 305.55ms. Allocated memory is still 130.0MB. Free memory was 91.7MB in the beginning and 81.3MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.35ms. Allocated memory is still 130.0MB. Free memory was 81.3MB in the beginning and 79.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.65ms. Allocated memory is still 130.0MB. Free memory was 79.4MB in the beginning and 78.7MB in the end (delta: 757.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 371.30ms. Allocated memory is still 130.0MB. Free memory was 78.6MB in the beginning and 66.2MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5798.02ms. Allocated memory was 130.0MB in the beginning and 172.0MB in the end (delta: 41.9MB). Free memory was 65.7MB in the beginning and 59.9MB in the end (delta: 5.7MB). Peak memory consumption was 48.0MB. Max. memory is 16.1GB. * Witness Printer took 109.60ms. Allocated memory is still 172.0MB. Free memory was 59.9MB in the beginning and 55.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 50 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 5.7s, OverallIterations: 10, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 203 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 178 mSDsluCounter, 866 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 633 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 905 IncrementalHoareTripleChecker+Invalid, 925 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 233 mSDtfsCounter, 905 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 185 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=0, InterpolantAutomatonStates: 70, 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, 10 MinimizatonAttempts, 8 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 47 PreInvPairs, 56 NumberOfFragments, 94 HoareAnnotationTreeSize, 47 FomulaSimplifications, 181 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 85 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 289 NumberOfCodeBlocks, 289 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 276 ConstructedInterpolants, 0 QuantifiedInterpolants, 938 SizeOfPredicates, 11 NumberOfNonLiveVariables, 335 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 13 InterpolantComputations, 10 PerfectInterpolantSequences, 44/57 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 - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-12 02:09:26,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d192144-76e9-47f3-b06e-52fabd4019ad/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 Writing output log to file Ultimate.log Result: TRUE