./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-crafted/bAnd1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-crafted/bAnd1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ad5600d67d8e26bbe74b5b2723c79b08c56f70a1300290f9b8c920a6b187d1e0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:25:23,051 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:25:23,121 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:25:23,127 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:25:23,128 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:25:23,162 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:25:23,169 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:25:23,170 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:25:23,171 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:25:23,176 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:25:23,177 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:25:23,178 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:25:23,178 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:25:23,180 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:25:23,181 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:25:23,181 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:25:23,182 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:25:23,182 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:25:23,182 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:25:23,183 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:25:23,183 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:25:23,184 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:25:23,184 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:25:23,185 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:25:23,185 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:25:23,185 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:25:23,186 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:25:23,186 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:25:23,187 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:25:23,187 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:25:23,187 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:25:23,188 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:25:23,188 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:25:23,189 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:25:23,189 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:25:23,189 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:25:23,189 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:25:23,189 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:25:23,190 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:25:23,190 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:25:23,190 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:25:23,192 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_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad5600d67d8e26bbe74b5b2723c79b08c56f70a1300290f9b8c920a6b187d1e0 [2023-11-06 22:25:23,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:25:23,496 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:25:23,499 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:25:23,500 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:25:23,500 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:25:23,502 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/array-crafted/bAnd1.i [2023-11-06 22:25:26,559 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:25:26,746 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:25:26,747 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/sv-benchmarks/c/array-crafted/bAnd1.i [2023-11-06 22:25:26,760 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/data/d4889701d/cb328b8505154d1eb4db6001e40878ad/FLAGb1ba3dd55 [2023-11-06 22:25:26,784 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/data/d4889701d/cb328b8505154d1eb4db6001e40878ad [2023-11-06 22:25:26,790 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:25:26,792 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:25:26,798 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:25:26,798 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:25:26,804 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:25:26,807 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:25:26" (1/1) ... [2023-11-06 22:25:26,809 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55d4f7cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:25:26, skipping insertion in model container [2023-11-06 22:25:26,809 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:25:26" (1/1) ... [2023-11-06 22:25:26,838 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:25:27,037 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:25:27,047 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:25:27,069 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:25:27,084 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:25:27,085 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:25:27 WrapperNode [2023-11-06 22:25:27,085 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:25:27,086 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:25:27,087 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:25:27,087 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:25:27,095 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:25:27" (1/1) ... [2023-11-06 22:25:27,110 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:25:27" (1/1) ... [2023-11-06 22:25:27,130 INFO L138 Inliner]: procedures = 16, calls = 32, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 86 [2023-11-06 22:25:27,131 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:25:27,132 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:25:27,132 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:25:27,132 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:25:27,142 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:25:27" (1/1) ... [2023-11-06 22:25:27,142 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:25:27" (1/1) ... [2023-11-06 22:25:27,151 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:25:27" (1/1) ... [2023-11-06 22:25:27,152 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:25:27" (1/1) ... [2023-11-06 22:25:27,158 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:25:27" (1/1) ... [2023-11-06 22:25:27,170 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:25:27" (1/1) ... [2023-11-06 22:25:27,172 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:25:27" (1/1) ... [2023-11-06 22:25:27,173 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:25:27" (1/1) ... [2023-11-06 22:25:27,175 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:25:27,176 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:25:27,176 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:25:27,177 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:25:27,177 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:25:27" (1/1) ... [2023-11-06 22:25:27,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:25:27,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:25:27,219 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:25:27,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:25:27,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:25:27,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:25:27,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:25:27,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:25:27,253 INFO L130 BoogieDeclarations]: Found specification of procedure bAnd [2023-11-06 22:25:27,253 INFO L138 BoogieDeclarations]: Found implementation of procedure bAnd [2023-11-06 22:25:27,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:25:27,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:25:27,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:25:27,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:25:27,328 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:25:27,331 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:25:27,542 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:25:27,549 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:25:27,550 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-06 22:25:27,552 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:25:27 BoogieIcfgContainer [2023-11-06 22:25:27,552 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:25:27,555 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:25:27,555 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:25:27,559 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:25:27,559 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:25:26" (1/3) ... [2023-11-06 22:25:27,560 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38964c5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:25:27, skipping insertion in model container [2023-11-06 22:25:27,560 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:25:27" (2/3) ... [2023-11-06 22:25:27,561 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38964c5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:25:27, skipping insertion in model container [2023-11-06 22:25:27,561 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:25:27" (3/3) ... [2023-11-06 22:25:27,562 INFO L112 eAbstractionObserver]: Analyzing ICFG bAnd1.i [2023-11-06 22:25:27,581 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:25:27,582 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-06 22:25:27,627 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:25:27,634 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@693ea519, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:25:27,635 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-06 22:25:27,638 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 33 states have (on average 1.5454545454545454) internal successors, (51), 41 states have internal predecessors, (51), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-06 22:25:27,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-06 22:25:27,645 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:25:27,646 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 22:25:27,647 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:25:27,652 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:25:27,652 INFO L85 PathProgramCache]: Analyzing trace with hash 59236488, now seen corresponding path program 1 times [2023-11-06 22:25:27,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:25:27,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653418421] [2023-11-06 22:25:27,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:25:27,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:25:27,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:27,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:25:27,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:25:27,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653418421] [2023-11-06 22:25:27,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653418421] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:25:27,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:25:27,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:25:27,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357751876] [2023-11-06 22:25:27,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:25:27,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:25:27,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:25:27,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:25:27,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:25:27,973 INFO L87 Difference]: Start difference. First operand has 46 states, 33 states have (on average 1.5454545454545454) internal successors, (51), 41 states have internal predecessors, (51), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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) [2023-11-06 22:25:28,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:25:28,072 INFO L93 Difference]: Finished difference Result 89 states and 114 transitions. [2023-11-06 22:25:28,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:25:28,076 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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) Word has length 5 [2023-11-06 22:25:28,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:25:28,084 INFO L225 Difference]: With dead ends: 89 [2023-11-06 22:25:28,084 INFO L226 Difference]: Without dead ends: 42 [2023-11-06 22:25:28,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:25:28,094 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 3 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:25:28,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 134 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:25:28,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-11-06 22:25:28,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2023-11-06 22:25:28,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 30 states have (on average 1.4333333333333333) internal successors, (43), 38 states have internal predecessors, (43), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:25:28,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2023-11-06 22:25:28,130 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 5 [2023-11-06 22:25:28,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:25:28,131 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2023-11-06 22:25:28,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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) [2023-11-06 22:25:28,131 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2023-11-06 22:25:28,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-06 22:25:28,132 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:25:28,132 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2023-11-06 22:25:28,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:25:28,133 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:25:28,133 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:25:28,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1144580356, now seen corresponding path program 1 times [2023-11-06 22:25:28,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:25:28,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776988941] [2023-11-06 22:25:28,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:25:28,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:25:28,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:28,338 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:25:28,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:25:28,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776988941] [2023-11-06 22:25:28,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776988941] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:25:28,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1706293148] [2023-11-06 22:25:28,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:25:28,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:25:28,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:25:28,343 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:25:28,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:25:28,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:28,428 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:25:28,432 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:25:28,503 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:25:28,504 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:25:28,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1706293148] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:25:28,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:25:28,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-06 22:25:28,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915896298] [2023-11-06 22:25:28,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:25:28,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:25:28,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:25:28,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:25:28,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:25:28,508 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 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) [2023-11-06 22:25:28,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:25:28,564 INFO L93 Difference]: Finished difference Result 42 states and 48 transitions. [2023-11-06 22:25:28,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:25:28,565 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 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) Word has length 9 [2023-11-06 22:25:28,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:25:28,566 INFO L225 Difference]: With dead ends: 42 [2023-11-06 22:25:28,567 INFO L226 Difference]: Without dead ends: 41 [2023-11-06 22:25:28,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:25:28,569 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 9 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:25:28,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 143 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:25:28,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-11-06 22:25:28,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2023-11-06 22:25:28,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 30 states have (on average 1.4) internal successors, (42), 37 states have internal predecessors, (42), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:25:28,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions. [2023-11-06 22:25:28,583 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 47 transitions. Word has length 9 [2023-11-06 22:25:28,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:25:28,583 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 47 transitions. [2023-11-06 22:25:28,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 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) [2023-11-06 22:25:28,584 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions. [2023-11-06 22:25:28,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-06 22:25:28,585 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:25:28,585 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2023-11-06 22:25:28,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:25:28,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-06 22:25:28,798 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:25:28,798 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:25:28,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1122252746, now seen corresponding path program 1 times [2023-11-06 22:25:28,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:25:28,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882966940] [2023-11-06 22:25:28,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:25:28,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:25:28,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:28,919 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:25:28,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:25:28,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882966940] [2023-11-06 22:25:28,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882966940] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:25:28,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:25:28,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:25:28,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297220744] [2023-11-06 22:25:28,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:25:28,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:25:28,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:25:28,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:25:28,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:25:28,924 INFO L87 Difference]: Start difference. First operand 41 states and 47 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2023-11-06 22:25:28,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:25:28,952 INFO L93 Difference]: Finished difference Result 41 states and 47 transitions. [2023-11-06 22:25:28,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:25:28,955 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) Word has length 10 [2023-11-06 22:25:28,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:25:28,961 INFO L225 Difference]: With dead ends: 41 [2023-11-06 22:25:28,962 INFO L226 Difference]: Without dead ends: 40 [2023-11-06 22:25:28,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:25:28,968 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 2 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 110 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 [2023-11-06 22:25:28,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 110 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:25:28,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-11-06 22:25:28,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 37. [2023-11-06 22:25:28,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 33 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:25:28,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2023-11-06 22:25:28,981 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 10 [2023-11-06 22:25:28,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:25:28,982 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2023-11-06 22:25:28,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2023-11-06 22:25:28,982 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2023-11-06 22:25:28,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-06 22:25:28,983 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:25:28,983 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:25:28,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:25:28,984 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:25:28,985 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:25:28,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1537217183, now seen corresponding path program 1 times [2023-11-06 22:25:28,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:25:28,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584931689] [2023-11-06 22:25:28,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:25:28,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:25:29,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:29,110 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:25:29,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:25:29,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584931689] [2023-11-06 22:25:29,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584931689] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:25:29,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135155961] [2023-11-06 22:25:29,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:25:29,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:25:29,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:25:29,115 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:25:29,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:25:29,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:29,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:25:29,191 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:25:29,230 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:25:29,232 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:25:29,285 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:25:29,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1135155961] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:25:29,286 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:25:29,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-06 22:25:29,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782203790] [2023-11-06 22:25:29,287 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:25:29,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:25:29,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:25:29,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:25:29,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:25:29,297 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 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) [2023-11-06 22:25:29,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:25:29,383 INFO L93 Difference]: Finished difference Result 75 states and 88 transitions. [2023-11-06 22:25:29,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:25:29,384 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 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 15 [2023-11-06 22:25:29,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:25:29,387 INFO L225 Difference]: With dead ends: 75 [2023-11-06 22:25:29,389 INFO L226 Difference]: Without dead ends: 45 [2023-11-06 22:25:29,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:25:29,393 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 10 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:25:29,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 219 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:25:29,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-11-06 22:25:29,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2023-11-06 22:25:29,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 41 states have internal predecessors, (46), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:25:29,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2023-11-06 22:25:29,410 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 15 [2023-11-06 22:25:29,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:25:29,415 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2023-11-06 22:25:29,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 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) [2023-11-06 22:25:29,416 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2023-11-06 22:25:29,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-06 22:25:29,418 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:25:29,418 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:25:29,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:25:29,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:25:29,625 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:25:29,625 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:25:29,625 INFO L85 PathProgramCache]: Analyzing trace with hash -659027367, now seen corresponding path program 2 times [2023-11-06 22:25:29,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:25:29,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184582114] [2023-11-06 22:25:29,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:25:29,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:25:29,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:29,725 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-06 22:25:29,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:25:29,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184582114] [2023-11-06 22:25:29,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184582114] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:25:29,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:25:29,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:25:29,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115791510] [2023-11-06 22:25:29,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:25:29,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:25:29,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:25:29,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:25:29,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:25:29,728 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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) [2023-11-06 22:25:29,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:25:29,757 INFO L93 Difference]: Finished difference Result 80 states and 97 transitions. [2023-11-06 22:25:29,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:25:29,757 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 23 [2023-11-06 22:25:29,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:25:29,786 INFO L225 Difference]: With dead ends: 80 [2023-11-06 22:25:29,786 INFO L226 Difference]: Without dead ends: 52 [2023-11-06 22:25:29,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:25:29,788 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 6 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:25:29,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 111 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:25:29,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-11-06 22:25:29,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2023-11-06 22:25:29,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 42 states have (on average 1.3095238095238095) internal successors, (55), 48 states have internal predecessors, (55), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:25:29,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 60 transitions. [2023-11-06 22:25:29,808 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 60 transitions. Word has length 23 [2023-11-06 22:25:29,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:25:29,808 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 60 transitions. [2023-11-06 22:25:29,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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) [2023-11-06 22:25:29,809 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 60 transitions. [2023-11-06 22:25:29,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-06 22:25:29,810 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:25:29,810 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:25:29,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:25:29,811 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:25:29,811 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:25:29,811 INFO L85 PathProgramCache]: Analyzing trace with hash 852322546, now seen corresponding path program 1 times [2023-11-06 22:25:29,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:25:29,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971703515] [2023-11-06 22:25:29,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:25:29,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:25:29,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:30,011 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-06 22:25:30,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:25:30,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971703515] [2023-11-06 22:25:30,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971703515] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:25:30,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848849027] [2023-11-06 22:25:30,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:25:30,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:25:30,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:25:30,021 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:25:30,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:25:30,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:30,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:25:30,123 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:25:30,187 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-06 22:25:30,187 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:25:30,319 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-06 22:25:30,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [848849027] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:25:30,320 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:25:30,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2023-11-06 22:25:30,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520974688] [2023-11-06 22:25:30,321 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:25:30,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-06 22:25:30,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:25:30,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-06 22:25:30,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-06 22:25:30,324 INFO L87 Difference]: Start difference. First operand 52 states and 60 transitions. Second operand has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 18 states have internal predecessors, (43), 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) [2023-11-06 22:25:30,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:25:30,472 INFO L93 Difference]: Finished difference Result 105 states and 124 transitions. [2023-11-06 22:25:30,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-06 22:25:30,473 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 18 states have internal predecessors, (43), 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 29 [2023-11-06 22:25:30,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:25:30,475 INFO L225 Difference]: With dead ends: 105 [2023-11-06 22:25:30,475 INFO L226 Difference]: Without dead ends: 68 [2023-11-06 22:25:30,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2023-11-06 22:25:30,480 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 36 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:25:30,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 218 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:25:30,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-11-06 22:25:30,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2023-11-06 22:25:30,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 58 states have (on average 1.2241379310344827) internal successors, (71), 64 states have internal predecessors, (71), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:25:30,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 76 transitions. [2023-11-06 22:25:30,496 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 76 transitions. Word has length 29 [2023-11-06 22:25:30,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:25:30,496 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 76 transitions. [2023-11-06 22:25:30,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 18 states have internal predecessors, (43), 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) [2023-11-06 22:25:30,497 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 76 transitions. [2023-11-06 22:25:30,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-06 22:25:30,498 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:25:30,499 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:25:30,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:25:30,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-06 22:25:30,701 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:25:30,701 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:25:30,701 INFO L85 PathProgramCache]: Analyzing trace with hash 679151330, now seen corresponding path program 2 times [2023-11-06 22:25:30,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:25:30,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146018982] [2023-11-06 22:25:30,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:25:30,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:25:30,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:31,035 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-06 22:25:31,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:25:31,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146018982] [2023-11-06 22:25:31,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146018982] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:25:31,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168573375] [2023-11-06 22:25:31,036 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:25:31,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:25:31,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:25:31,038 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:25:31,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 22:25:31,149 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:25:31,149 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:25:31,150 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-06 22:25:31,159 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:25:31,265 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-06 22:25:31,265 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:25:31,626 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-06 22:25:31,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1168573375] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:25:31,627 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:25:31,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2023-11-06 22:25:31,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632853950] [2023-11-06 22:25:31,628 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:25:31,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-11-06 22:25:31,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:25:31,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-11-06 22:25:31,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2023-11-06 22:25:31,633 INFO L87 Difference]: Start difference. First operand 68 states and 76 transitions. Second operand has 34 states, 34 states have (on average 2.2058823529411766) internal successors, (75), 34 states have internal predecessors, (75), 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) [2023-11-06 22:25:31,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:25:31,983 INFO L93 Difference]: Finished difference Result 137 states and 160 transitions. [2023-11-06 22:25:31,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-06 22:25:31,984 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.2058823529411766) internal successors, (75), 34 states have internal predecessors, (75), 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 45 [2023-11-06 22:25:31,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:25:31,985 INFO L225 Difference]: With dead ends: 137 [2023-11-06 22:25:31,985 INFO L226 Difference]: Without dead ends: 100 [2023-11-06 22:25:31,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=659, Invalid=1597, Unknown=0, NotChecked=0, Total=2256 [2023-11-06 22:25:31,988 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 68 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:25:31,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 288 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:25:31,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-11-06 22:25:31,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2023-11-06 22:25:31,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 90 states have (on average 1.1444444444444444) internal successors, (103), 96 states have internal predecessors, (103), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:25:31,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 108 transitions. [2023-11-06 22:25:31,998 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 108 transitions. Word has length 45 [2023-11-06 22:25:31,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:25:31,998 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 108 transitions. [2023-11-06 22:25:31,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.2058823529411766) internal successors, (75), 34 states have internal predecessors, (75), 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) [2023-11-06 22:25:31,999 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 108 transitions. [2023-11-06 22:25:32,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-06 22:25:32,002 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:25:32,002 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:25:32,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:25:32,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:25:32,208 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:25:32,208 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:25:32,208 INFO L85 PathProgramCache]: Analyzing trace with hash 986227394, now seen corresponding path program 3 times [2023-11-06 22:25:32,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:25:32,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465973894] [2023-11-06 22:25:32,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:25:32,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:25:32,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:33,222 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-06 22:25:33,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:25:33,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465973894] [2023-11-06 22:25:33,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465973894] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:25:33,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667611101] [2023-11-06 22:25:33,223 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 22:25:33,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:25:33,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:25:33,231 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:25:33,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 22:25:33,326 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-06 22:25:33,327 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:25:33,328 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:25:33,333 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:25:33,441 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-06 22:25:33,442 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:25:33,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [667611101] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:25:33,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:25:33,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [33] total 37 [2023-11-06 22:25:33,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450691791] [2023-11-06 22:25:33,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:25:33,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:25:33,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:25:33,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:25:33,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=298, Invalid=1034, Unknown=0, NotChecked=0, Total=1332 [2023-11-06 22:25:33,446 INFO L87 Difference]: Start difference. First operand 100 states and 108 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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) [2023-11-06 22:25:33,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:25:33,512 INFO L93 Difference]: Finished difference Result 100 states and 108 transitions. [2023-11-06 22:25:33,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:25:33,514 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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 77 [2023-11-06 22:25:33,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:25:33,517 INFO L225 Difference]: With dead ends: 100 [2023-11-06 22:25:33,517 INFO L226 Difference]: Without dead ends: 99 [2023-11-06 22:25:33,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=309, Invalid=1173, Unknown=0, NotChecked=0, Total=1482 [2023-11-06 22:25:33,520 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 21 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:25:33,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 112 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:25:33,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-06 22:25:33,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2023-11-06 22:25:33,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 90 states have (on average 1.1333333333333333) internal successors, (102), 95 states have internal predecessors, (102), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:25:33,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 107 transitions. [2023-11-06 22:25:33,531 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 107 transitions. Word has length 77 [2023-11-06 22:25:33,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:25:33,533 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 107 transitions. [2023-11-06 22:25:33,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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) [2023-11-06 22:25:33,533 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 107 transitions. [2023-11-06 22:25:33,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-06 22:25:33,535 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:25:33,536 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:25:33,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:25:33,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:25:33,742 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:25:33,742 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:25:33,743 INFO L85 PathProgramCache]: Analyzing trace with hash 508278198, now seen corresponding path program 1 times [2023-11-06 22:25:33,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:25:33,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839562621] [2023-11-06 22:25:33,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:25:33,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:25:33,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:33,855 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2023-11-06 22:25:33,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:25:33,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839562621] [2023-11-06 22:25:33,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839562621] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:25:33,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:25:33,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:25:33,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215401547] [2023-11-06 22:25:33,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:25:33,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:25:33,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:25:33,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:25:33,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:25:33,858 INFO L87 Difference]: Start difference. First operand 99 states and 107 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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) [2023-11-06 22:25:33,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:25:33,874 INFO L93 Difference]: Finished difference Result 99 states and 107 transitions. [2023-11-06 22:25:33,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:25:33,875 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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 78 [2023-11-06 22:25:33,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:25:33,877 INFO L225 Difference]: With dead ends: 99 [2023-11-06 22:25:33,877 INFO L226 Difference]: Without dead ends: 96 [2023-11-06 22:25:33,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:25:33,881 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 5 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:25:33,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 101 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:25:33,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-11-06 22:25:33,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 90. [2023-11-06 22:25:33,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 83 states have (on average 1.0963855421686748) internal successors, (91), 86 states have internal predecessors, (91), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:25:33,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 95 transitions. [2023-11-06 22:25:33,894 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 95 transitions. Word has length 78 [2023-11-06 22:25:33,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:25:33,895 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 95 transitions. [2023-11-06 22:25:33,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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) [2023-11-06 22:25:33,895 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 95 transitions. [2023-11-06 22:25:33,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-06 22:25:33,896 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:25:33,897 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:25:33,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 22:25:33,897 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:25:33,897 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:25:33,898 INFO L85 PathProgramCache]: Analyzing trace with hash -34469202, now seen corresponding path program 1 times [2023-11-06 22:25:33,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:25:33,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531643275] [2023-11-06 22:25:33,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:25:33,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:25:33,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:34,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-06 22:25:34,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:34,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-06 22:25:34,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:34,116 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2023-11-06 22:25:34,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:25:34,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531643275] [2023-11-06 22:25:34,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531643275] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:25:34,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837600211] [2023-11-06 22:25:34,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:25:34,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:25:34,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:25:34,121 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:25:34,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 22:25:34,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:34,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:25:34,278 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:25:34,297 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2023-11-06 22:25:34,297 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:25:34,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [837600211] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:25:34,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:25:34,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-06 22:25:34,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236855881] [2023-11-06 22:25:34,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:25:34,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:25:34,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:25:34,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:25:34,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:25:34,303 INFO L87 Difference]: Start difference. First operand 90 states and 95 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:25:34,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:25:34,321 INFO L93 Difference]: Finished difference Result 99 states and 105 transitions. [2023-11-06 22:25:34,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:25:34,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 92 [2023-11-06 22:25:34,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:25:34,323 INFO L225 Difference]: With dead ends: 99 [2023-11-06 22:25:34,323 INFO L226 Difference]: Without dead ends: 98 [2023-11-06 22:25:34,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:25:34,325 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 7 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 60 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 [2023-11-06 22:25:34,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 60 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:25:34,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-11-06 22:25:34,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 92. [2023-11-06 22:25:34,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 85 states have (on average 1.0941176470588236) internal successors, (93), 88 states have internal predecessors, (93), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:25:34,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 97 transitions. [2023-11-06 22:25:34,339 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 97 transitions. Word has length 92 [2023-11-06 22:25:34,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:25:34,341 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 97 transitions. [2023-11-06 22:25:34,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:25:34,341 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 97 transitions. [2023-11-06 22:25:34,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-06 22:25:34,346 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:25:34,346 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:25:34,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:25:34,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-06 22:25:34,553 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:25:34,554 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:25:34,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1068545164, now seen corresponding path program 1 times [2023-11-06 22:25:34,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:25:34,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473373133] [2023-11-06 22:25:34,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:25:34,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:25:34,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:34,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-06 22:25:34,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:34,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-06 22:25:34,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:34,763 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2023-11-06 22:25:34,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:25:34,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473373133] [2023-11-06 22:25:34,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473373133] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:25:34,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780808742] [2023-11-06 22:25:34,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:25:34,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:25:34,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:25:34,765 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:25:34,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-06 22:25:34,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:34,918 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:25:34,920 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:25:34,936 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2023-11-06 22:25:34,936 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:25:34,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780808742] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:25:34,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:25:34,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-06 22:25:34,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914411915] [2023-11-06 22:25:34,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:25:34,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:25:34,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:25:34,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:25:34,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:25:34,939 INFO L87 Difference]: Start difference. First operand 92 states and 97 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:25:34,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:25:34,956 INFO L93 Difference]: Finished difference Result 99 states and 104 transitions. [2023-11-06 22:25:34,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:25:34,957 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 93 [2023-11-06 22:25:34,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:25:34,958 INFO L225 Difference]: With dead ends: 99 [2023-11-06 22:25:34,958 INFO L226 Difference]: Without dead ends: 98 [2023-11-06 22:25:34,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:25:34,959 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 5 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:25:34,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 61 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:25:34,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-11-06 22:25:34,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 93. [2023-11-06 22:25:34,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 86 states have (on average 1.0930232558139534) internal successors, (94), 89 states have internal predecessors, (94), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:25:34,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 98 transitions. [2023-11-06 22:25:34,967 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 98 transitions. Word has length 93 [2023-11-06 22:25:34,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:25:34,968 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 98 transitions. [2023-11-06 22:25:34,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:25:34,968 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 98 transitions. [2023-11-06 22:25:34,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-06 22:25:34,974 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:25:34,974 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:25:34,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:25:35,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-06 22:25:35,180 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:25:35,181 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:25:35,181 INFO L85 PathProgramCache]: Analyzing trace with hash -374715658, now seen corresponding path program 1 times [2023-11-06 22:25:35,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:25:35,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427711835] [2023-11-06 22:25:35,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:25:35,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:25:35,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:35,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-06 22:25:35,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:35,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-06 22:25:35,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:35,364 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2023-11-06 22:25:35,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:25:35,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427711835] [2023-11-06 22:25:35,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427711835] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:25:35,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406207640] [2023-11-06 22:25:35,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:25:35,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:25:35,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:25:35,366 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:25:35,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-06 22:25:35,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:35,527 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-06 22:25:35,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:25:36,138 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-06 22:25:36,138 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:25:37,434 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-06 22:25:37,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406207640] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:25:37,434 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:25:37,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 33, 33] total 67 [2023-11-06 22:25:37,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772695495] [2023-11-06 22:25:37,435 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:25:37,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2023-11-06 22:25:37,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:25:37,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2023-11-06 22:25:37,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1063, Invalid=3359, Unknown=0, NotChecked=0, Total=4422 [2023-11-06 22:25:37,441 INFO L87 Difference]: Start difference. First operand 93 states and 98 transitions. Second operand has 67 states, 67 states have (on average 2.5074626865671643) internal successors, (168), 67 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-06 22:25:38,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:25:38,639 INFO L93 Difference]: Finished difference Result 200 states and 232 transitions. [2023-11-06 22:25:38,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2023-11-06 22:25:38,639 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 2.5074626865671643) internal successors, (168), 67 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 95 [2023-11-06 22:25:38,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:25:38,641 INFO L225 Difference]: With dead ends: 200 [2023-11-06 22:25:38,641 INFO L226 Difference]: Without dead ends: 170 [2023-11-06 22:25:38,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1847 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=2539, Invalid=6967, Unknown=0, NotChecked=0, Total=9506 [2023-11-06 22:25:38,647 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 174 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:25:38,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 281 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:25:38,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2023-11-06 22:25:38,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 164. [2023-11-06 22:25:38,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 157 states have (on average 1.0636942675159236) internal successors, (167), 160 states have internal predecessors, (167), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:25:38,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 171 transitions. [2023-11-06 22:25:38,656 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 171 transitions. Word has length 95 [2023-11-06 22:25:38,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:25:38,656 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 171 transitions. [2023-11-06 22:25:38,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 2.5074626865671643) internal successors, (168), 67 states have internal predecessors, (168), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-06 22:25:38,657 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 171 transitions. [2023-11-06 22:25:38,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-11-06 22:25:38,659 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:25:38,659 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:25:38,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:25:38,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-06 22:25:38,859 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:25:38,860 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:25:38,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1510361706, now seen corresponding path program 2 times [2023-11-06 22:25:38,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:25:38,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889324158] [2023-11-06 22:25:38,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:25:38,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:25:38,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:39,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-06 22:25:39,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:39,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-06 22:25:39,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:39,123 INFO L134 CoverageAnalysis]: Checked inductivity of 1940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1940 trivial. 0 not checked. [2023-11-06 22:25:39,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:25:39,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889324158] [2023-11-06 22:25:39,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889324158] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:25:39,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:25:39,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:25:39,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225916351] [2023-11-06 22:25:39,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:25:39,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:25:39,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:25:39,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:25:39,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:25:39,126 INFO L87 Difference]: Start difference. First operand 164 states and 171 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:25:39,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:25:39,182 INFO L93 Difference]: Finished difference Result 169 states and 176 transitions. [2023-11-06 22:25:39,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:25:39,182 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 171 [2023-11-06 22:25:39,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:25:39,184 INFO L225 Difference]: With dead ends: 169 [2023-11-06 22:25:39,184 INFO L226 Difference]: Without dead ends: 167 [2023-11-06 22:25:39,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:25:39,186 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 3 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:25:39,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 87 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:25:39,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2023-11-06 22:25:39,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2023-11-06 22:25:39,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 160 states have (on average 1.0625) internal successors, (170), 163 states have internal predecessors, (170), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:25:39,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 174 transitions. [2023-11-06 22:25:39,195 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 174 transitions. Word has length 171 [2023-11-06 22:25:39,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:25:39,195 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 174 transitions. [2023-11-06 22:25:39,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:25:39,196 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 174 transitions. [2023-11-06 22:25:39,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-11-06 22:25:39,198 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:25:39,198 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:25:39,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-06 22:25:39,198 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:25:39,199 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:25:39,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1108087596, now seen corresponding path program 1 times [2023-11-06 22:25:39,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:25:39,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252121004] [2023-11-06 22:25:39,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:25:39,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:25:39,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:39,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-06 22:25:39,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:39,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-06 22:25:39,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:39,460 INFO L134 CoverageAnalysis]: Checked inductivity of 1942 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1940 trivial. 0 not checked. [2023-11-06 22:25:39,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:25:39,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252121004] [2023-11-06 22:25:39,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252121004] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:25:39,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777320736] [2023-11-06 22:25:39,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:25:39,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:25:39,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:25:39,462 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:25:39,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-06 22:25:39,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:39,695 INFO L262 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 64 conjunts are in the unsatisfiable core [2023-11-06 22:25:39,701 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:25:41,648 INFO L134 CoverageAnalysis]: Checked inductivity of 1942 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-11-06 22:25:41,648 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:25:45,989 INFO L134 CoverageAnalysis]: Checked inductivity of 1942 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-11-06 22:25:45,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1777320736] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:25:45,990 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:25:45,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 65, 65] total 131 [2023-11-06 22:25:45,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224997173] [2023-11-06 22:25:45,991 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:25:45,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 131 states [2023-11-06 22:25:45,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:25:45,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 131 interpolants. [2023-11-06 22:25:46,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4166, Invalid=12864, Unknown=0, NotChecked=0, Total=17030 [2023-11-06 22:25:46,005 INFO L87 Difference]: Start difference. First operand 167 states and 174 transitions. Second operand has 131 states, 131 states have (on average 2.2900763358778624) internal successors, (300), 131 states have internal predecessors, (300), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-06 22:25:49,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:25:49,688 INFO L93 Difference]: Finished difference Result 343 states and 390 transitions. [2023-11-06 22:25:49,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2023-11-06 22:25:49,689 INFO L78 Accepts]: Start accepts. Automaton has has 131 states, 131 states have (on average 2.2900763358778624) internal successors, (300), 131 states have internal predecessors, (300), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 174 [2023-11-06 22:25:49,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:25:49,690 INFO L225 Difference]: With dead ends: 343 [2023-11-06 22:25:49,691 INFO L226 Difference]: Without dead ends: 303 [2023-11-06 22:25:49,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 192 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7657 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=10185, Invalid=27257, Unknown=0, NotChecked=0, Total=37442 [2023-11-06 22:25:49,705 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 501 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:25:49,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 440 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-06 22:25:49,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2023-11-06 22:25:49,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 297. [2023-11-06 22:25:49,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 290 states have (on average 1.0344827586206897) internal successors, (300), 293 states have internal predecessors, (300), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:25:49,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 304 transitions. [2023-11-06 22:25:49,718 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 304 transitions. Word has length 174 [2023-11-06 22:25:49,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:25:49,718 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 304 transitions. [2023-11-06 22:25:49,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 131 states, 131 states have (on average 2.2900763358778624) internal successors, (300), 131 states have internal predecessors, (300), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-06 22:25:49,719 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 304 transitions. [2023-11-06 22:25:49,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2023-11-06 22:25:49,723 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:25:49,724 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:25:49,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:25:49,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:25:49,937 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:25:49,937 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:25:49,938 INFO L85 PathProgramCache]: Analyzing trace with hash 977091982, now seen corresponding path program 1 times [2023-11-06 22:25:49,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:25:49,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57638963] [2023-11-06 22:25:49,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:25:49,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:25:50,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:50,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-11-06 22:25:50,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:50,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-11-06 22:25:50,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:50,254 INFO L134 CoverageAnalysis]: Checked inductivity of 7927 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7925 trivial. 0 not checked. [2023-11-06 22:25:50,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:25:50,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57638963] [2023-11-06 22:25:50,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57638963] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:25:50,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:25:50,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:25:50,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528250702] [2023-11-06 22:25:50,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:25:50,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:25:50,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:25:50,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:25:50,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:25:50,267 INFO L87 Difference]: Start difference. First operand 297 states and 304 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:25:50,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:25:50,295 INFO L93 Difference]: Finished difference Result 297 states and 304 transitions. [2023-11-06 22:25:50,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:25:50,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 303 [2023-11-06 22:25:50,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:25:50,306 INFO L225 Difference]: With dead ends: 297 [2023-11-06 22:25:50,307 INFO L226 Difference]: Without dead ends: 296 [2023-11-06 22:25:50,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:25:50,309 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 6 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:25:50,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 56 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:25:50,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2023-11-06 22:25:50,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2023-11-06 22:25:50,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 290 states have (on average 1.0310344827586206) internal successors, (299), 292 states have internal predecessors, (299), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:25:50,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 303 transitions. [2023-11-06 22:25:50,331 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 303 transitions. Word has length 303 [2023-11-06 22:25:50,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:25:50,331 INFO L495 AbstractCegarLoop]: Abstraction has 296 states and 303 transitions. [2023-11-06 22:25:50,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:25:50,332 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 303 transitions. [2023-11-06 22:25:50,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2023-11-06 22:25:50,336 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:25:50,337 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:25:50,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-06 22:25:50,337 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:25:50,337 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:25:50,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1612439920, now seen corresponding path program 1 times [2023-11-06 22:25:50,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:25:50,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813670116] [2023-11-06 22:25:50,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:25:50,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:25:50,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:50,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-11-06 22:25:50,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:50,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-11-06 22:25:50,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:50,786 INFO L134 CoverageAnalysis]: Checked inductivity of 7929 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 7926 trivial. 0 not checked. [2023-11-06 22:25:50,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:25:50,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813670116] [2023-11-06 22:25:50,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813670116] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:25:50,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:25:50,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:25:50,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899269082] [2023-11-06 22:25:50,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:25:50,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:25:50,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:25:50,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:25:50,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:25:50,789 INFO L87 Difference]: Start difference. First operand 296 states and 303 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:25:50,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:25:50,813 INFO L93 Difference]: Finished difference Result 296 states and 303 transitions. [2023-11-06 22:25:50,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:25:50,814 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 305 [2023-11-06 22:25:50,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:25:50,816 INFO L225 Difference]: With dead ends: 296 [2023-11-06 22:25:50,816 INFO L226 Difference]: Without dead ends: 294 [2023-11-06 22:25:50,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:25:50,818 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 6 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:25:50,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 78 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:25:50,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2023-11-06 22:25:50,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 292. [2023-11-06 22:25:50,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 288 states have (on average 1.0243055555555556) internal successors, (295), 288 states have internal predecessors, (295), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:25:50,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 299 transitions. [2023-11-06 22:25:50,833 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 299 transitions. Word has length 305 [2023-11-06 22:25:50,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:25:50,833 INFO L495 AbstractCegarLoop]: Abstraction has 292 states and 299 transitions. [2023-11-06 22:25:50,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:25:50,834 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 299 transitions. [2023-11-06 22:25:50,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2023-11-06 22:25:50,838 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:25:50,838 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:25:50,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-06 22:25:50,839 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:25:50,839 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:25:50,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1553970136, now seen corresponding path program 1 times [2023-11-06 22:25:50,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:25:50,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184832272] [2023-11-06 22:25:50,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:25:50,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:25:50,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:51,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-11-06 22:25:51,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:51,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-11-06 22:25:51,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:51,215 INFO L134 CoverageAnalysis]: Checked inductivity of 7930 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 7925 trivial. 0 not checked. [2023-11-06 22:25:51,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:25:51,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184832272] [2023-11-06 22:25:51,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184832272] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:25:51,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:25:51,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:25:51,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994972427] [2023-11-06 22:25:51,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:25:51,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:25:51,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:25:51,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:25:51,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:25:51,218 INFO L87 Difference]: Start difference. First operand 292 states and 299 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:25:51,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:25:51,239 INFO L93 Difference]: Finished difference Result 292 states and 299 transitions. [2023-11-06 22:25:51,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:25:51,239 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 306 [2023-11-06 22:25:51,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:25:51,240 INFO L225 Difference]: With dead ends: 292 [2023-11-06 22:25:51,240 INFO L226 Difference]: Without dead ends: 0 [2023-11-06 22:25:51,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:25:51,242 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 2 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:25:51,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 78 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:25:51,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-06 22:25:51,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-06 22:25:51,243 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) [2023-11-06 22:25:51,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-06 22:25:51,243 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 306 [2023-11-06 22:25:51,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:25:51,244 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:25:51,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:25:51,244 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-06 22:25:51,244 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-06 22:25:51,247 INFO L805 garLoopResultBuilder]: Registering result SAFE for location bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2023-11-06 22:25:51,247 INFO L805 garLoopResultBuilder]: Registering result SAFE for location bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2023-11-06 22:25:51,248 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2023-11-06 22:25:51,248 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2023-11-06 22:25:51,248 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2023-11-06 22:25:51,248 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2023-11-06 22:25:51,248 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2023-11-06 22:25:51,249 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2023-11-06 22:25:51,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-06 22:25:51,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-06 22:25:51,370 INFO L899 garLoopResultBuilder]: For program point bAndErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2023-11-06 22:25:51,370 INFO L899 garLoopResultBuilder]: For program point L23-2(lines 23 25) no Hoare annotation was computed. [2023-11-06 22:25:51,371 INFO L899 garLoopResultBuilder]: For program point L23-3(line 23) no Hoare annotation was computed. [2023-11-06 22:25:51,371 INFO L899 garLoopResultBuilder]: For program point L23-4(line 23) no Hoare annotation was computed. [2023-11-06 22:25:51,371 INFO L899 garLoopResultBuilder]: For program point bAndEXIT(lines 18 27) no Hoare annotation was computed. [2023-11-06 22:25:51,371 INFO L895 garLoopResultBuilder]: At program point L23-5(lines 23 25) the Hoare annotation is: (or (< 1 bAnd_~i~0) (= bAnd_~i~0 1)) [2023-11-06 22:25:51,371 INFO L899 garLoopResultBuilder]: For program point L23-6(lines 23 25) no Hoare annotation was computed. [2023-11-06 22:25:51,372 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 18 27) the Hoare annotation is: true [2023-11-06 22:25:51,372 INFO L899 garLoopResultBuilder]: For program point bAndFINAL(lines 18 27) no Hoare annotation was computed. [2023-11-06 22:25:51,372 INFO L899 garLoopResultBuilder]: For program point bAndErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2023-11-06 22:25:51,372 INFO L899 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2023-11-06 22:25:51,373 INFO L899 garLoopResultBuilder]: For program point L24-2(line 24) no Hoare annotation was computed. [2023-11-06 22:25:51,373 INFO L899 garLoopResultBuilder]: For program point L24-4(line 24) no Hoare annotation was computed. [2023-11-06 22:25:51,373 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 47) no Hoare annotation was computed. [2023-11-06 22:25:51,373 INFO L899 garLoopResultBuilder]: For program point L52(lines 52 54) no Hoare annotation was computed. [2023-11-06 22:25:51,373 INFO L899 garLoopResultBuilder]: For program point L52-2(lines 52 54) no Hoare annotation was computed. [2023-11-06 22:25:51,373 INFO L899 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2023-11-06 22:25:51,374 INFO L899 garLoopResultBuilder]: For program point L15-2(line 15) no Hoare annotation was computed. [2023-11-06 22:25:51,374 INFO L902 garLoopResultBuilder]: At program point L44(line 44) the Hoare annotation is: true [2023-11-06 22:25:51,374 INFO L899 garLoopResultBuilder]: For program point L44-1(line 44) no Hoare annotation was computed. [2023-11-06 22:25:51,374 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 29 56) the Hoare annotation is: true [2023-11-06 22:25:51,374 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-06 22:25:51,374 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2023-11-06 22:25:51,375 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-06 22:25:51,375 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-06 22:25:51,375 INFO L902 garLoopResultBuilder]: At program point L41(line 41) the Hoare annotation is: true [2023-11-06 22:25:51,375 INFO L899 garLoopResultBuilder]: For program point L41-1(line 41) no Hoare annotation was computed. [2023-11-06 22:25:51,375 INFO L899 garLoopResultBuilder]: For program point L37-2(lines 37 39) no Hoare annotation was computed. [2023-11-06 22:25:51,375 INFO L899 garLoopResultBuilder]: For program point L37-3(line 37) no Hoare annotation was computed. [2023-11-06 22:25:51,375 INFO L899 garLoopResultBuilder]: For program point L37-4(line 37) no Hoare annotation was computed. [2023-11-06 22:25:51,376 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2023-11-06 22:25:51,376 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-06 22:25:51,376 INFO L895 garLoopResultBuilder]: At program point L37-5(lines 37 39) the Hoare annotation is: (or (= |ULTIMATE.start_main_~i~1#1| 0) (< 0 |ULTIMATE.start_main_~i~1#1|)) [2023-11-06 22:25:51,376 INFO L899 garLoopResultBuilder]: For program point L37-6(lines 37 39) no Hoare annotation was computed. [2023-11-06 22:25:51,377 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-06 22:25:51,377 INFO L902 garLoopResultBuilder]: At program point L50(line 50) the Hoare annotation is: true [2023-11-06 22:25:51,377 INFO L899 garLoopResultBuilder]: For program point L50-1(line 50) no Hoare annotation was computed. [2023-11-06 22:25:51,377 INFO L899 garLoopResultBuilder]: For program point L46-2(lines 46 48) no Hoare annotation was computed. [2023-11-06 22:25:51,377 INFO L899 garLoopResultBuilder]: For program point L46-3(line 46) no Hoare annotation was computed. [2023-11-06 22:25:51,377 INFO L899 garLoopResultBuilder]: For program point L46-4(line 46) no Hoare annotation was computed. [2023-11-06 22:25:51,378 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-06 22:25:51,378 INFO L895 garLoopResultBuilder]: At program point L46-5(lines 46 48) the Hoare annotation is: (< 0 (+ 2147483650 |ULTIMATE.start_main_~i~2#1|)) [2023-11-06 22:25:51,378 INFO L899 garLoopResultBuilder]: For program point L46-6(lines 46 48) no Hoare annotation was computed. [2023-11-06 22:25:51,378 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 47) no Hoare annotation was computed. [2023-11-06 22:25:51,378 INFO L899 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2023-11-06 22:25:51,378 INFO L899 garLoopResultBuilder]: For program point L47-1(line 47) no Hoare annotation was computed. [2023-11-06 22:25:51,382 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:25:51,385 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:25:51,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:25:51 BoogieIcfgContainer [2023-11-06 22:25:51,400 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:25:51,401 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:25:51,401 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:25:51,401 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:25:51,402 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:25:27" (3/4) ... [2023-11-06 22:25:51,404 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:25:51,431 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure bAnd [2023-11-06 22:25:51,439 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-06 22:25:51,439 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-06 22:25:51,440 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-06 22:25:51,440 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:25:51,440 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:25:51,535 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:25:51,536 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:25:51,536 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:25:51,538 INFO L158 Benchmark]: Toolchain (without parser) took 24744.70ms. Allocated memory was 134.2MB in the beginning and 318.8MB in the end (delta: 184.5MB). Free memory was 70.6MB in the beginning and 282.5MB in the end (delta: -211.9MB). Peak memory consumption was 156.4MB. Max. memory is 16.1GB. [2023-11-06 22:25:51,539 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 134.2MB. Free memory is still 104.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:25:51,539 INFO L158 Benchmark]: CACSL2BoogieTranslator took 287.47ms. Allocated memory was 134.2MB in the beginning and 182.5MB in the end (delta: 48.2MB). Free memory was 70.4MB in the beginning and 150.0MB in the end (delta: -79.6MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2023-11-06 22:25:51,540 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.80ms. Allocated memory is still 182.5MB. Free memory was 150.0MB in the beginning and 147.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:25:51,540 INFO L158 Benchmark]: Boogie Preprocessor took 43.67ms. Allocated memory is still 182.5MB. Free memory was 147.9MB in the beginning and 146.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:25:51,541 INFO L158 Benchmark]: RCFGBuilder took 376.12ms. Allocated memory is still 182.5MB. Free memory was 146.6MB in the beginning and 133.2MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-06 22:25:51,541 INFO L158 Benchmark]: TraceAbstraction took 23845.40ms. Allocated memory was 182.5MB in the beginning and 318.8MB in the end (delta: 136.3MB). Free memory was 132.5MB in the beginning and 101.0MB in the end (delta: 31.5MB). Peak memory consumption was 167.3MB. Max. memory is 16.1GB. [2023-11-06 22:25:51,541 INFO L158 Benchmark]: Witness Printer took 135.23ms. Allocated memory is still 318.8MB. Free memory was 101.0MB in the beginning and 282.5MB in the end (delta: -181.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:25:51,546 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 134.2MB. Free memory is still 104.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 287.47ms. Allocated memory was 134.2MB in the beginning and 182.5MB in the end (delta: 48.2MB). Free memory was 70.4MB in the beginning and 150.0MB in the end (delta: -79.6MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.80ms. Allocated memory is still 182.5MB. Free memory was 150.0MB in the beginning and 147.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.67ms. Allocated memory is still 182.5MB. Free memory was 147.9MB in the beginning and 146.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 376.12ms. Allocated memory is still 182.5MB. Free memory was 146.6MB in the beginning and 133.2MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 23845.40ms. Allocated memory was 182.5MB in the beginning and 318.8MB in the end (delta: 136.3MB). Free memory was 132.5MB in the beginning and 101.0MB in the end (delta: 31.5MB). Peak memory consumption was 167.3MB. Max. memory is 16.1GB. * Witness Printer took 135.23ms. Allocated memory is still 318.8MB. Free memory was 101.0MB in the beginning and 282.5MB in the end (delta: -181.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: 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 2 procedures, 46 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 23.8s, OverallIterations: 17, TraceHistogramMax: 63, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.1s, AutomataDifference: 6.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 864 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 864 mSDsluCounter, 2577 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1989 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1229 IncrementalHoareTripleChecker+Invalid, 1249 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 588 mSDtfsCounter, 1229 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1244 GetRequests, 803 SyntacticMatches, 0 SemanticMatches, 441 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10435 ImplicationChecksByTransitivity, 12.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=297occurred in iteration=14, InterpolantAutomatonStates: 298, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 17 MinimizatonAttempts, 34 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 48 PreInvPairs, 122 NumberOfFragments, 24 HoareAnnotationTreeSize, 48 FomulaSimplifications, 591 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 12.9s InterpolantComputationTime, 2459 NumberOfCodeBlocks, 2403 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 2786 ConstructedInterpolants, 0 QuantifiedInterpolants, 4120 SizeOfPredicates, 61 NumberOfNonLiveVariables, 2158 ConjunctsInSsa, 138 ConjunctsInUnsatCore, 31 InterpolantComputations, 12 PerfectInterpolantSequences, 30947/36399 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 8 specifications checked. All of them hold - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: ((1 < i) || (i == 1)) - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: ((i == 0) || (0 < i)) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: (0 < (2147483650 + i)) RESULT: Ultimate proved your program to be correct! [2023-11-06 22:25:51,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eb528f1-631b-40d8-9f34-227654dbb37d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE