./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-regression/test22-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test22-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e1ce1c36cc17bb5fac8e93fbe54fbc2a77334d62ad40c06c722f9da96af2516f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:08:53,212 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:08:53,347 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-12 02:08:53,355 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:08:53,356 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:08:53,396 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:08:53,397 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:08:53,398 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:08:53,399 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:08:53,404 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:08:53,405 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:08:53,406 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:08:53,406 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:08:53,408 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:08:53,409 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:08:53,409 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:08:53,410 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:08:53,410 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:08:53,411 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:08:53,411 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:08:53,412 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:08:53,413 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:08:53,413 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 02:08:53,413 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:08:53,414 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:08:53,414 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:08:53,415 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:08:53,416 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:08:53,416 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:08:53,417 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:08:53,418 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:08:53,419 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:08:53,419 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:08:53,419 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:08:53,420 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:08:53,420 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:08:53,420 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:08:53,421 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:08:53,421 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:08:53,421 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:08:53,421 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:08:53,422 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_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1ce1c36cc17bb5fac8e93fbe54fbc2a77334d62ad40c06c722f9da96af2516f [2023-11-12 02:08:53,749 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:08:53,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:08:53,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:08:53,782 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:08:53,783 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:08:53,784 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/ldv-regression/test22-1.c [2023-11-12 02:08:56,960 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:08:57,239 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:08:57,240 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/sv-benchmarks/c/ldv-regression/test22-1.c [2023-11-12 02:08:57,248 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl/data/3e460640e/de3c4159c3f34e3d828370c9ceecaa37/FLAGfa889bba3 [2023-11-12 02:08:57,265 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl/data/3e460640e/de3c4159c3f34e3d828370c9ceecaa37 [2023-11-12 02:08:57,268 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:08:57,270 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:08:57,272 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:08:57,272 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:08:57,278 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:08:57,279 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:08:57" (1/1) ... [2023-11-12 02:08:57,281 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@581565aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:57, skipping insertion in model container [2023-11-12 02:08:57,281 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:08:57" (1/1) ... [2023-11-12 02:08:57,318 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:08:57,554 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:08:57,569 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:08:57,607 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:08:57,635 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:08:57,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:57 WrapperNode [2023-11-12 02:08:57,636 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:08:57,637 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:08:57,638 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:08:57,638 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:08:57,648 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:57" (1/1) ... [2023-11-12 02:08:57,675 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:57" (1/1) ... [2023-11-12 02:08:57,702 INFO L138 Inliner]: procedures = 16, calls = 27, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 95 [2023-11-12 02:08:57,703 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:08:57,704 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:08:57,704 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:08:57,704 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:08:57,716 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:57" (1/1) ... [2023-11-12 02:08:57,716 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:57" (1/1) ... [2023-11-12 02:08:57,719 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:57" (1/1) ... [2023-11-12 02:08:57,720 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:57" (1/1) ... [2023-11-12 02:08:57,739 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:57" (1/1) ... [2023-11-12 02:08:57,743 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:57" (1/1) ... [2023-11-12 02:08:57,745 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:57" (1/1) ... [2023-11-12 02:08:57,746 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:57" (1/1) ... [2023-11-12 02:08:57,750 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:08:57,751 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:08:57,751 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:08:57,751 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:08:57,752 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:57" (1/1) ... [2023-11-12 02:08:57,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:08:57,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:08:57,804 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:08:57,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:08:57,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:08:57,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:08:57,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:08:57,851 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2023-11-12 02:08:57,851 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2023-11-12 02:08:57,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:08:57,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:08:57,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:08:57,946 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:08:57,948 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:08:58,185 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:08:58,193 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:08:58,194 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:08:58,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:08:58 BoogieIcfgContainer [2023-11-12 02:08:58,197 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:08:58,199 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:08:58,199 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:08:58,203 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:08:58,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:08:57" (1/3) ... [2023-11-12 02:08:58,204 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64cfb861 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:08:58, skipping insertion in model container [2023-11-12 02:08:58,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:57" (2/3) ... [2023-11-12 02:08:58,205 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64cfb861 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:08:58, skipping insertion in model container [2023-11-12 02:08:58,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:08:58" (3/3) ... [2023-11-12 02:08:58,207 INFO L112 eAbstractionObserver]: Analyzing ICFG test22-1.c [2023-11-12 02:08:58,229 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:08:58,229 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-12 02:08:58,285 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:08:58,292 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2e312d2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:08:58,293 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-12 02:08:58,297 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 24 states have (on average 1.375) internal successors, (33), 28 states have internal predecessors, (33), 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) [2023-11-12 02:08:58,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-12 02:08:58,306 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:58,307 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:08:58,308 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-12 02:08:58,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:58,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1920858197, now seen corresponding path program 1 times [2023-11-12 02:08:58,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:58,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819211842] [2023-11-12 02:08:58,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:58,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:58,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:58,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:08:58,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:58,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:08:58,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:58,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-12 02:08:58,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:58,824 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-12 02:08:58,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:58,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819211842] [2023-11-12 02:08:58,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819211842] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:08:58,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:08:58,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:08:58,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940430174] [2023-11-12 02:08:58,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:08:58,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:08:58,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:58,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:08:58,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:08:58,898 INFO L87 Difference]: Start difference. First operand has 33 states, 24 states have (on average 1.375) internal successors, (33), 28 states have internal predecessors, (33), 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 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-12 02:08:58,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:58,976 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2023-11-12 02:08:58,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:08:58,981 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 21 [2023-11-12 02:08:58,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:58,990 INFO L225 Difference]: With dead ends: 52 [2023-11-12 02:08:58,991 INFO L226 Difference]: Without dead ends: 24 [2023-11-12 02:08:58,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:08:59,000 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:08:59,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:08:59,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-11-12 02:08:59,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2023-11-12 02:08:59,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 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) [2023-11-12 02:08:59,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2023-11-12 02:08:59,070 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 21 [2023-11-12 02:08:59,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:59,073 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2023-11-12 02:08:59,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-12 02:08:59,073 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2023-11-12 02:08:59,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-12 02:08:59,076 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:59,076 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:08:59,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:08:59,078 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-12 02:08:59,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:59,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1920860119, now seen corresponding path program 1 times [2023-11-12 02:08:59,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:59,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230392380] [2023-11-12 02:08:59,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:59,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:59,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:59,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:08:59,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:59,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:08:59,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:59,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-12 02:08:59,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:59,495 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-12 02:08:59,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:59,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230392380] [2023-11-12 02:08:59,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230392380] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:08:59,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:08:59,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:08:59,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888609659] [2023-11-12 02:08:59,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:08:59,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:08:59,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:59,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:08:59,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:08:59,501 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-12 02:08:59,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:08:59,546 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2023-11-12 02:08:59,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:08:59,547 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 21 [2023-11-12 02:08:59,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:08:59,548 INFO L225 Difference]: With dead ends: 24 [2023-11-12 02:08:59,549 INFO L226 Difference]: Without dead ends: 23 [2023-11-12 02:08:59,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:08:59,551 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 11 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:08:59,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 49 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:08:59,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-11-12 02:08:59,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2023-11-12 02:08:59,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 16 states have (on average 1.1875) internal successors, (19), 18 states have internal predecessors, (19), 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) [2023-11-12 02:08:59,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2023-11-12 02:08:59,559 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 21 [2023-11-12 02:08:59,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:08:59,560 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2023-11-12 02:08:59,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-12 02:08:59,560 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2023-11-12 02:08:59,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-12 02:08:59,561 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:08:59,562 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:08:59,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:08:59,563 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-12 02:08:59,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:59,563 INFO L85 PathProgramCache]: Analyzing trace with hash 582878510, now seen corresponding path program 1 times [2023-11-12 02:08:59,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:59,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000620946] [2023-11-12 02:08:59,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:59,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:59,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:00,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:09:00,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:00,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:09:00,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:00,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-12 02:09:00,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:00,433 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-12 02:09:00,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:09:00,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000620946] [2023-11-12 02:09:00,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000620946] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:09:00,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [944850647] [2023-11-12 02:09:00,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:00,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:09:00,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:09:00,440 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:09:00,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:09:00,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:00,564 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-12 02:09:00,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:09:00,732 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 51 [2023-11-12 02:09:00,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:09:00,746 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 41 [2023-11-12 02:09:00,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:09:00,771 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 25 [2023-11-12 02:09:00,778 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2023-11-12 02:09:02,002 INFO L322 Elim1Store]: treesize reduction 29, result has 49.1 percent of original size [2023-11-12 02:09:02,003 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 57 treesize of output 64 [2023-11-12 02:09:02,147 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 02:09:02,147 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:09:02,761 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:09:02,761 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 46 treesize of output 66 [2023-11-12 02:09:02,787 INFO L322 Elim1Store]: treesize reduction 28, result has 12.5 percent of original size [2023-11-12 02:09:02,787 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 64 treesize of output 51 [2023-11-12 02:09:02,847 INFO L322 Elim1Store]: treesize reduction 82, result has 24.8 percent of original size [2023-11-12 02:09:02,847 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 47 treesize of output 57 [2023-11-12 02:09:02,865 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-12 02:09:02,866 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 29 [2023-11-12 02:09:02,876 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-12 02:09:02,877 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-12 02:09:02,923 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-12 02:09:02,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [944850647] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:09:02,923 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:09:02,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 23 [2023-11-12 02:09:02,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398973475] [2023-11-12 02:09:02,924 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:09:02,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-12 02:09:02,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:09:02,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-12 02:09:02,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=458, Unknown=0, NotChecked=0, Total=552 [2023-11-12 02:09:02,928 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 24 states, 23 states have (on average 1.6956521739130435) internal successors, (39), 21 states have internal predecessors, (39), 6 states have call successors, (9), 3 states have call predecessors, (9), 6 states have return successors, (9), 9 states have call predecessors, (9), 6 states have call successors, (9) [2023-11-12 02:09:03,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:09:03,479 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2023-11-12 02:09:03,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:09:03,480 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 1.6956521739130435) internal successors, (39), 21 states have internal predecessors, (39), 6 states have call successors, (9), 3 states have call predecessors, (9), 6 states have return successors, (9), 9 states have call predecessors, (9), 6 states have call successors, (9) Word has length 22 [2023-11-12 02:09:03,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:09:03,481 INFO L225 Difference]: With dead ends: 23 [2023-11-12 02:09:03,481 INFO L226 Difference]: Without dead ends: 22 [2023-11-12 02:09:03,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=175, Invalid=637, Unknown=0, NotChecked=0, Total=812 [2023-11-12 02:09:03,483 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 45 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:09:03,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 70 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:09:03,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-11-12 02:09:03,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-11-12 02:09:03,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 16 states have (on average 1.125) internal successors, (18), 17 states have internal predecessors, (18), 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) [2023-11-12 02:09:03,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2023-11-12 02:09:03,492 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 22 [2023-11-12 02:09:03,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:09:03,493 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2023-11-12 02:09:03,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 1.6956521739130435) internal successors, (39), 21 states have internal predecessors, (39), 6 states have call successors, (9), 3 states have call predecessors, (9), 6 states have return successors, (9), 9 states have call predecessors, (9), 6 states have call successors, (9) [2023-11-12 02:09:03,494 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2023-11-12 02:09:03,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-12 02:09:03,495 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:09:03,495 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:09:03,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:09:03,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:09:03,703 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-12 02:09:03,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:09:03,703 INFO L85 PathProgramCache]: Analyzing trace with hash -19026576, now seen corresponding path program 1 times [2023-11-12 02:09:03,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:09:03,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692624927] [2023-11-12 02:09:03,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:03,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:09:03,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:03,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:09:03,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:03,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:09:03,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:03,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-12 02:09:03,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:03,767 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-12 02:09:03,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:09:03,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692624927] [2023-11-12 02:09:03,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692624927] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:09:03,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:09:03,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:09:03,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435385091] [2023-11-12 02:09:03,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:09:03,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:09:03,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:09:03,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:09:03,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:09:03,771 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-12 02:09:03,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:09:03,802 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2023-11-12 02:09:03,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:09:03,803 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2023-11-12 02:09:03,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:09:03,804 INFO L225 Difference]: With dead ends: 22 [2023-11-12 02:09:03,804 INFO L226 Difference]: Without dead ends: 21 [2023-11-12 02:09:03,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:09:03,806 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 5 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:09:03,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 45 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:09:03,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-11-12 02:09:03,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2023-11-12 02:09:03,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.0625) internal successors, (17), 16 states have internal predecessors, (17), 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) [2023-11-12 02:09:03,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2023-11-12 02:09:03,815 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 25 [2023-11-12 02:09:03,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:09:03,816 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2023-11-12 02:09:03,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-12 02:09:03,817 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2023-11-12 02:09:03,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-12 02:09:03,818 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:09:03,818 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:09:03,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:09:03,818 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-12 02:09:03,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:09:03,819 INFO L85 PathProgramCache]: Analyzing trace with hash -589823787, now seen corresponding path program 1 times [2023-11-12 02:09:03,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:09:03,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499120572] [2023-11-12 02:09:03,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:03,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:09:03,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:04,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:09:04,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:04,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:09:04,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:04,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-12 02:09:04,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:04,779 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-12 02:09:04,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:09:04,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499120572] [2023-11-12 02:09:04,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499120572] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:09:04,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513746523] [2023-11-12 02:09:04,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:04,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:09:04,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:09:04,781 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:09:04,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:09:04,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:04,880 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 42 conjunts are in the unsatisfiable core [2023-11-12 02:09:04,895 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:09:04,958 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 51 [2023-11-12 02:09:04,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:09:04,966 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 32 [2023-11-12 02:09:04,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:09:04,982 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 13 [2023-11-12 02:09:04,987 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-12 02:09:05,974 INFO L322 Elim1Store]: treesize reduction 29, result has 49.1 percent of original size [2023-11-12 02:09:05,975 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 47 treesize of output 58 [2023-11-12 02:09:06,056 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 02:09:06,057 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:09:06,828 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:09:06,829 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 46 treesize of output 66 [2023-11-12 02:09:06,849 INFO L322 Elim1Store]: treesize reduction 28, result has 12.5 percent of original size [2023-11-12 02:09:06,850 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 37 [2023-11-12 02:09:06,884 INFO L322 Elim1Store]: treesize reduction 39, result has 35.0 percent of original size [2023-11-12 02:09:06,884 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 41 [2023-11-12 02:09:06,895 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2023-11-12 02:09:06,902 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-12 02:09:06,903 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-12 02:09:06,946 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-12 02:09:06,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513746523] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:09:06,947 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:09:06,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 12] total 31 [2023-11-12 02:09:06,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483955884] [2023-11-12 02:09:06,947 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:09:06,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-11-12 02:09:06,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:09:06,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-11-12 02:09:06,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=847, Unknown=0, NotChecked=0, Total=992 [2023-11-12 02:09:06,950 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 32 states, 29 states have (on average 1.6551724137931034) internal successors, (48), 27 states have internal predecessors, (48), 8 states have call successors, (9), 3 states have call predecessors, (9), 6 states have return successors, (9), 9 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-12 02:09:07,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:09:07,825 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2023-11-12 02:09:07,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-12 02:09:07,828 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 29 states have (on average 1.6551724137931034) internal successors, (48), 27 states have internal predecessors, (48), 8 states have call successors, (9), 3 states have call predecessors, (9), 6 states have return successors, (9), 9 states have call predecessors, (9), 8 states have call successors, (9) Word has length 26 [2023-11-12 02:09:07,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:09:07,830 INFO L225 Difference]: With dead ends: 30 [2023-11-12 02:09:07,830 INFO L226 Difference]: Without dead ends: 29 [2023-11-12 02:09:07,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 362 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=342, Invalid=1298, Unknown=0, NotChecked=0, Total=1640 [2023-11-12 02:09:07,835 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 163 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:09:07,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 46 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:09:07,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-11-12 02:09:07,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-11-12 02:09:07,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 24 states have (on average 1.0416666666666667) internal successors, (25), 24 states have internal predecessors, (25), 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) [2023-11-12 02:09:07,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2023-11-12 02:09:07,860 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 26 [2023-11-12 02:09:07,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:09:07,861 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2023-11-12 02:09:07,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 29 states have (on average 1.6551724137931034) internal successors, (48), 27 states have internal predecessors, (48), 8 states have call successors, (9), 3 states have call predecessors, (9), 6 states have return successors, (9), 9 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-12 02:09:07,862 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2023-11-12 02:09:07,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-12 02:09:07,864 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:09:07,864 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:09:07,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:09:08,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:09:08,070 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-12 02:09:08,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:09:08,071 INFO L85 PathProgramCache]: Analyzing trace with hash 524367267, now seen corresponding path program 1 times [2023-11-12 02:09:08,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:09:08,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454318691] [2023-11-12 02:09:08,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:08,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:09:08,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:08,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:09:08,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:08,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:09:08,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:08,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-12 02:09:08,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:08,845 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-12 02:09:08,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:09:08,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454318691] [2023-11-12 02:09:08,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454318691] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:09:08,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415067757] [2023-11-12 02:09:08,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:08,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:09:08,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:09:08,847 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:09:08,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:09:08,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:08,952 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 45 conjunts are in the unsatisfiable core [2023-11-12 02:09:08,958 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:09:09,013 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 29 [2023-11-12 02:09:09,024 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 43 [2023-11-12 02:09:09,034 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-12 02:09:09,040 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-12 02:09:09,682 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-12 02:09:09,692 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:09:09,692 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 26 [2023-11-12 02:09:09,825 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 02:09:09,825 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:09:10,542 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-12 02:09:10,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415067757] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:09:10,542 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:09:10,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 14] total 34 [2023-11-12 02:09:10,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254681453] [2023-11-12 02:09:10,543 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:09:10,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-11-12 02:09:10,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:09:10,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-11-12 02:09:10,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=1034, Unknown=0, NotChecked=0, Total=1190 [2023-11-12 02:09:10,548 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 35 states, 32 states have (on average 1.96875) internal successors, (63), 30 states have internal predecessors, (63), 8 states have call successors, (9), 3 states have call predecessors, (9), 6 states have return successors, (9), 9 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-12 02:09:11,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:09:11,511 INFO L93 Difference]: Finished difference Result 46 states and 51 transitions. [2023-11-12 02:09:11,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-12 02:09:11,513 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 32 states have (on average 1.96875) internal successors, (63), 30 states have internal predecessors, (63), 8 states have call successors, (9), 3 states have call predecessors, (9), 6 states have return successors, (9), 9 states have call predecessors, (9), 8 states have call successors, (9) Word has length 34 [2023-11-12 02:09:11,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:09:11,518 INFO L225 Difference]: With dead ends: 46 [2023-11-12 02:09:11,519 INFO L226 Difference]: Without dead ends: 45 [2023-11-12 02:09:11,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 510 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=475, Invalid=1781, Unknown=0, NotChecked=0, Total=2256 [2023-11-12 02:09:11,522 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 207 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:09:11,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 51 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:09:11,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-11-12 02:09:11,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2023-11-12 02:09:11,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 40 states have (on average 1.025) internal successors, (41), 40 states have internal predecessors, (41), 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) [2023-11-12 02:09:11,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 47 transitions. [2023-11-12 02:09:11,541 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 47 transitions. Word has length 34 [2023-11-12 02:09:11,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:09:11,543 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 47 transitions. [2023-11-12 02:09:11,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 32 states have (on average 1.96875) internal successors, (63), 30 states have internal predecessors, (63), 8 states have call successors, (9), 3 states have call predecessors, (9), 6 states have return successors, (9), 9 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-12 02:09:11,544 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 47 transitions. [2023-11-12 02:09:11,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-12 02:09:11,547 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:09:11,547 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:09:11,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:09:11,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-12 02:09:11,753 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-12 02:09:11,756 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:09:11,756 INFO L85 PathProgramCache]: Analyzing trace with hash -663120577, now seen corresponding path program 2 times [2023-11-12 02:09:11,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:09:11,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136859968] [2023-11-12 02:09:11,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:11,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:09:11,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:12,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:09:12,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:12,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:09:12,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:12,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-12 02:09:12,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:12,294 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 2 proven. 86 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-12 02:09:12,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:09:12,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136859968] [2023-11-12 02:09:12,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136859968] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:09:12,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [209310751] [2023-11-12 02:09:12,295 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-12 02:09:12,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:09:12,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:09:12,297 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:09:12,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 02:09:12,393 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-12 02:09:12,393 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:09:12,395 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 48 conjunts are in the unsatisfiable core [2023-11-12 02:09:12,400 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:09:12,444 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 29 [2023-11-12 02:09:12,453 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-12 02:09:12,460 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 11 [2023-11-12 02:09:13,241 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-12 02:09:13,252 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:09:13,252 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 26 [2023-11-12 02:09:13,322 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 2 proven. 90 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 02:09:13,323 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:09:14,218 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 2 proven. 86 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-12 02:09:14,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [209310751] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:09:14,219 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:09:14,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 19, 18] total 39 [2023-11-12 02:09:14,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070557148] [2023-11-12 02:09:14,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:09:14,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-11-12 02:09:14,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:09:14,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-11-12 02:09:14,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=1345, Unknown=0, NotChecked=0, Total=1560 [2023-11-12 02:09:14,223 INFO L87 Difference]: Start difference. First operand 45 states and 47 transitions. Second operand has 40 states, 36 states have (on average 2.25) internal successors, (81), 35 states have internal predecessors, (81), 8 states have call successors, (9), 3 states have call predecessors, (9), 6 states have return successors, (9), 9 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-12 02:09:15,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:09:15,412 INFO L93 Difference]: Finished difference Result 62 states and 67 transitions. [2023-11-12 02:09:15,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-12 02:09:15,413 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 36 states have (on average 2.25) internal successors, (81), 35 states have internal predecessors, (81), 8 states have call successors, (9), 3 states have call predecessors, (9), 6 states have return successors, (9), 9 states have call predecessors, (9), 8 states have call successors, (9) Word has length 50 [2023-11-12 02:09:15,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:09:15,414 INFO L225 Difference]: With dead ends: 62 [2023-11-12 02:09:15,414 INFO L226 Difference]: Without dead ends: 61 [2023-11-12 02:09:15,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 75 SyntacticMatches, 4 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 714 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=633, Invalid=2337, Unknown=0, NotChecked=0, Total=2970 [2023-11-12 02:09:15,417 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 296 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:09:15,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 64 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 02:09:15,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-11-12 02:09:15,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2023-11-12 02:09:15,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 56 states have (on average 1.0178571428571428) internal successors, (57), 56 states have internal predecessors, (57), 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) [2023-11-12 02:09:15,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 63 transitions. [2023-11-12 02:09:15,434 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 63 transitions. Word has length 50 [2023-11-12 02:09:15,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:09:15,434 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 63 transitions. [2023-11-12 02:09:15,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 36 states have (on average 2.25) internal successors, (81), 35 states have internal predecessors, (81), 8 states have call successors, (9), 3 states have call predecessors, (9), 6 states have return successors, (9), 9 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-12 02:09:15,435 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 63 transitions. [2023-11-12 02:09:15,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-12 02:09:15,436 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:09:15,436 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:09:15,444 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-12 02:09:15,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-12 02:09:15,642 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-12 02:09:15,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:09:15,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1385643227, now seen corresponding path program 3 times [2023-11-12 02:09:15,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:09:15,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769490696] [2023-11-12 02:09:15,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:15,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:09:15,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:16,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:09:16,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:16,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:09:16,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:16,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-12 02:09:16,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:16,177 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 180 proven. 40 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-12 02:09:16,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:09:16,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769490696] [2023-11-12 02:09:16,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769490696] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:09:16,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507666516] [2023-11-12 02:09:16,178 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-12 02:09:16,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:09:16,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:09:16,181 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:09:16,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-12 02:09:16,290 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-12 02:09:16,291 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:09:16,293 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 36 conjunts are in the unsatisfiable core [2023-11-12 02:09:16,298 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:09:16,354 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 29 [2023-11-12 02:09:16,363 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-12 02:09:16,372 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 11 [2023-11-12 02:09:17,577 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-12 02:09:17,591 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:09:17,591 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 26 [2023-11-12 02:09:17,619 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2023-11-12 02:09:17,619 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:09:18,238 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-11-12 02:09:18,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1507666516] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:09:18,239 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:09:18,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 9, 11] total 31 [2023-11-12 02:09:18,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190950808] [2023-11-12 02:09:18,239 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:09:18,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-11-12 02:09:18,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:09:18,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-11-12 02:09:18,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=864, Unknown=0, NotChecked=0, Total=992 [2023-11-12 02:09:18,243 INFO L87 Difference]: Start difference. First operand 61 states and 63 transitions. Second operand has 32 states, 31 states have (on average 2.935483870967742) internal successors, (91), 30 states have internal predecessors, (91), 5 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-12 02:09:21,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:09:21,069 INFO L93 Difference]: Finished difference Result 61 states and 63 transitions. [2023-11-12 02:09:21,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-11-12 02:09:21,070 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 2.935483870967742) internal successors, (91), 30 states have internal predecessors, (91), 5 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 66 [2023-11-12 02:09:21,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:09:21,071 INFO L225 Difference]: With dead ends: 61 [2023-11-12 02:09:21,071 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 02:09:21,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 121 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 673 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1165, Invalid=3257, Unknown=0, NotChecked=0, Total=4422 [2023-11-12 02:09:21,075 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 39 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-12 02:09:21,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 60 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-12 02:09:21,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 02:09:21,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 02:09:21,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:09:21,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 02:09:21,076 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 66 [2023-11-12 02:09:21,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:09:21,077 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 02:09:21,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 2.935483870967742) internal successors, (91), 30 states have internal predecessors, (91), 5 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-12 02:09:21,077 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 02:09:21,077 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 02:09:21,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-11-12 02:09:21,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-11-12 02:09:21,081 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-11-12 02:09:21,081 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-11-12 02:09:21,088 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-12 02:09:21,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:09:21,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-12 02:09:22,182 INFO L899 garLoopResultBuilder]: For program point get_dummyFINAL(lines 22 25) no Hoare annotation was computed. [2023-11-12 02:09:22,182 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 22 25) the Hoare annotation is: true [2023-11-12 02:09:22,182 INFO L899 garLoopResultBuilder]: For program point get_dummyEXIT(lines 22 25) no Hoare annotation was computed. [2023-11-12 02:09:22,182 INFO L895 garLoopResultBuilder]: At program point L35-2(line 35) the Hoare annotation is: (and (= |~#d2~0.offset| 0) (= |~#d1~0.base| 4) (<= (select (select |#memory_int| 4) 0) 2147483647) (= 5 |~#d2~0.base|) (or (= 5 |ULTIMATE.start_main_~pd1~0#1.base|) (= 4 |ULTIMATE.start_main_~pd1~0#1.base|)) (<= (select (select |#memory_int| 5) 0) 2147483647) (= |~#d1~0.offset| 0) (= |ULTIMATE.start_main_~pd1~0#1.offset| 0)) [2023-11-12 02:09:22,183 INFO L899 garLoopResultBuilder]: For program point L35-3(line 35) no Hoare annotation was computed. [2023-11-12 02:09:22,183 INFO L895 garLoopResultBuilder]: At program point L35-4(line 35) the Hoare annotation is: (and (= |~#d2~0.offset| 0) (= |~#d1~0.base| 4) (<= (select (select |#memory_int| 4) 0) 2147483647) (= 5 |~#d2~0.base|) (or (= 5 |ULTIMATE.start_main_~pd1~0#1.base|) (= 4 |ULTIMATE.start_main_~pd1~0#1.base|)) (<= (select (select |#memory_int| 5) 0) 2147483647) (= |~#d1~0.offset| 0) (let ((.cse0 (= |ULTIMATE.start_main_~pd2~0#1.offset| 0))) (or (and .cse0 (= 5 |ULTIMATE.start_main_~pd2~0#1.base|)) (and .cse0 (= 4 |ULTIMATE.start_main_~pd2~0#1.base|)))) (= |ULTIMATE.start_main_~pd1~0#1.offset| 0)) [2023-11-12 02:09:22,183 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-11-12 02:09:22,183 INFO L899 garLoopResultBuilder]: For program point L35-5(line 35) no Hoare annotation was computed. [2023-11-12 02:09:22,183 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 32 52) no Hoare annotation was computed. [2023-11-12 02:09:22,183 INFO L899 garLoopResultBuilder]: For program point L40-1(lines 40 42) no Hoare annotation was computed. [2023-11-12 02:09:22,184 INFO L895 garLoopResultBuilder]: At program point L40-3(lines 40 42) the Hoare annotation is: (and (or (< 0 (select (select |#memory_int| |ULTIMATE.start_main_~pd2~0#1.base|) 0)) (not |ULTIMATE.start_main_#t~short15#1|)) (= |~#d2~0.offset| 0) (= |~#d1~0.base| 4) (<= (select (select |#memory_int| 4) 0) 2147483647) (= |ULTIMATE.start_main_~pd2~0#1.offset| 0) (= 5 |~#d2~0.base|) (or (= 5 |ULTIMATE.start_main_~pd1~0#1.base|) (= 4 |ULTIMATE.start_main_~pd1~0#1.base|)) (<= 0 (+ |ULTIMATE.start_main_~i~0#1| 2147483648)) (= |ULTIMATE.start_main_~pd2~0#1.base| |ULTIMATE.start_main_~pd1~0#1.base|) (<= (select (select |#memory_int| 5) 0) 2147483647) (<= (select (select |#memory_int| |ULTIMATE.start_main_~pa~0#1.base|) |ULTIMATE.start_main_~pa~0#1.offset|) (+ |ULTIMATE.start_main_~i~0#1| 10)) (= |~#d1~0.offset| 0) (let ((.cse0 (= |ULTIMATE.start_main_~pa~0#1.offset| 0))) (or (and .cse0 (= |ULTIMATE.start_main_~pa~0#1.base| 4)) (and .cse0 (= 5 |ULTIMATE.start_main_~pa~0#1.base|)))) (= |ULTIMATE.start_main_~pd1~0#1.offset| 0)) [2023-11-12 02:09:22,184 INFO L899 garLoopResultBuilder]: For program point L40-4(lines 40 42) no Hoare annotation was computed. [2023-11-12 02:09:22,184 INFO L899 garLoopResultBuilder]: For program point L3(line 3) no Hoare annotation was computed. [2023-11-12 02:09:22,184 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-12 02:09:22,184 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2023-11-12 02:09:22,184 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-12 02:09:22,184 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2023-11-12 02:09:22,185 INFO L899 garLoopResultBuilder]: For program point L41-1(line 41) no Hoare annotation was computed. [2023-11-12 02:09:22,185 INFO L899 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2023-11-12 02:09:22,185 INFO L899 garLoopResultBuilder]: For program point L37-2(lines 37 46) no Hoare annotation was computed. [2023-11-12 02:09:22,185 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2023-11-12 02:09:22,185 INFO L899 garLoopResultBuilder]: For program point L37-4(lines 37 46) no Hoare annotation was computed. [2023-11-12 02:09:22,185 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-12 02:09:22,185 INFO L899 garLoopResultBuilder]: For program point check_returnLabel#1(lines 27 30) no Hoare annotation was computed. [2023-11-12 02:09:22,185 INFO L899 garLoopResultBuilder]: For program point L13(lines 13 20) no Hoare annotation was computed. [2023-11-12 02:09:22,185 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-12 02:09:22,186 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-11-12 02:09:22,186 INFO L899 garLoopResultBuilder]: For program point main_ERROR#1(lines 33 52) no Hoare annotation was computed. [2023-11-12 02:09:22,186 INFO L899 garLoopResultBuilder]: For program point L43(lines 43 45) no Hoare annotation was computed. [2023-11-12 02:09:22,186 INFO L899 garLoopResultBuilder]: For program point L39(line 39) no Hoare annotation was computed. [2023-11-12 02:09:22,186 INFO L899 garLoopResultBuilder]: For program point L39-1(line 39) no Hoare annotation was computed. [2023-11-12 02:09:22,186 INFO L895 garLoopResultBuilder]: At program point L35(line 35) the Hoare annotation is: (and (= |~#d2~0.offset| 0) (= |~#d1~0.base| 4) (<= (select (select |#memory_int| 4) 0) 2147483647) (= 5 |~#d2~0.base|) (<= (select (select |#memory_int| 5) 0) 2147483647) (= |~#d1~0.offset| 0)) [2023-11-12 02:09:22,186 INFO L899 garLoopResultBuilder]: For program point L35-1(line 35) no Hoare annotation was computed. [2023-11-12 02:09:22,193 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1] [2023-11-12 02:09:22,196 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:09:22,215 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~pd2~0!base][0] could not be translated [2023-11-12 02:09:22,216 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short15 could not be translated [2023-11-12 02:09:22,217 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[4][0] could not be translated [2023-11-12 02:09:22,218 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[5][0] could not be translated [2023-11-12 02:09:22,218 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~pa~0!base][~pa~0!offset] could not be translated [2023-11-12 02:09:22,221 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~pd2~0!base][0] could not be translated [2023-11-12 02:09:22,221 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short15 could not be translated [2023-11-12 02:09:22,222 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[4][0] could not be translated [2023-11-12 02:09:22,222 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[5][0] could not be translated [2023-11-12 02:09:22,222 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~pa~0!base][~pa~0!offset] could not be translated [2023-11-12 02:09:22,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:09:22 BoogieIcfgContainer [2023-11-12 02:09:22,223 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:09:22,224 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:09:22,224 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:09:22,225 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:09:22,225 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:08:58" (3/4) ... [2023-11-12 02:09:22,227 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 02:09:22,231 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure get_dummy [2023-11-12 02:09:22,240 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-12 02:09:22,240 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-12 02:09:22,240 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 02:09:22,241 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:09:22,372 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:09:22,373 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl/witness.yml [2023-11-12 02:09:22,373 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:09:22,374 INFO L158 Benchmark]: Toolchain (without parser) took 25104.08ms. Allocated memory was 142.6MB in the beginning and 299.9MB in the end (delta: 157.3MB). Free memory was 111.4MB in the beginning and 214.7MB in the end (delta: -103.3MB). Peak memory consumption was 57.1MB. Max. memory is 16.1GB. [2023-11-12 02:09:22,374 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 111.1MB. Free memory is still 55.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:09:22,375 INFO L158 Benchmark]: CACSL2BoogieTranslator took 364.67ms. Allocated memory is still 142.6MB. Free memory was 111.4MB in the beginning and 100.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 02:09:22,375 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.58ms. Allocated memory is still 142.6MB. Free memory was 100.9MB in the beginning and 98.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:09:22,376 INFO L158 Benchmark]: Boogie Preprocessor took 46.32ms. Allocated memory is still 142.6MB. Free memory was 98.8MB in the beginning and 97.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:09:22,376 INFO L158 Benchmark]: RCFGBuilder took 446.03ms. Allocated memory is still 142.6MB. Free memory was 97.5MB in the beginning and 84.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 02:09:22,377 INFO L158 Benchmark]: TraceAbstraction took 24024.60ms. Allocated memory was 142.6MB in the beginning and 299.9MB in the end (delta: 157.3MB). Free memory was 84.3MB in the beginning and 219.9MB in the end (delta: -135.6MB). Peak memory consumption was 152.1MB. Max. memory is 16.1GB. [2023-11-12 02:09:22,378 INFO L158 Benchmark]: Witness Printer took 149.15ms. Allocated memory is still 299.9MB. Free memory was 219.9MB in the beginning and 214.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-12 02:09:22,381 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 111.1MB. Free memory is still 55.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 364.67ms. Allocated memory is still 142.6MB. Free memory was 111.4MB in the beginning and 100.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.58ms. Allocated memory is still 142.6MB. Free memory was 100.9MB in the beginning and 98.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.32ms. Allocated memory is still 142.6MB. Free memory was 98.8MB in the beginning and 97.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 446.03ms. Allocated memory is still 142.6MB. Free memory was 97.5MB in the beginning and 84.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 24024.60ms. Allocated memory was 142.6MB in the beginning and 299.9MB in the end (delta: 157.3MB). Free memory was 84.3MB in the beginning and 219.9MB in the end (delta: -135.6MB). Peak memory consumption was 152.1MB. Max. memory is 16.1GB. * Witness Printer took 149.15ms. Allocated memory is still 299.9MB. Free memory was 219.9MB in the beginning and 214.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~pd2~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[4][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[5][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~pa~0!base][~pa~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~pd2~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[4][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[5][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~pa~0!base][~pa~0!offset] could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: 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, 33 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 23.9s, OverallIterations: 8, TraceHistogramMax: 11, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 6.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 769 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 766 mSDsluCounter, 449 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 330 mSDsCounter, 72 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1307 IncrementalHoareTripleChecker+Invalid, 1379 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 72 mSolverCounterUnsat, 119 mSDtfsCounter, 1307 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 580 GetRequests, 333 SyntacticMatches, 10 SemanticMatches, 237 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2430 ImplicationChecksByTransitivity, 9.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred in iteration=7, InterpolantAutomatonStates: 110, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 7 PreInvPairs, 18 NumberOfFragments, 199 HoareAnnotationTreeSize, 7 FomulaSimplifications, 805 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 5 FomulaSimplificationsInter, 1829 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 13.9s InterpolantComputationTime, 463 NumberOfCodeBlocks, 431 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 643 ConstructedInterpolants, 16 QuantifiedInterpolants, 7948 SizeOfPredicates, 68 NumberOfNonLiveVariables, 743 ConjunctsInSsa, 199 ConjunctsInUnsatCore, 18 InterpolantComputations, 3 PerfectInterpolantSequences, 668/1110 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 4 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant [2023-11-12 02:09:22,406 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~pd2~0!base][0] could not be translated [2023-11-12 02:09:22,408 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short15 could not be translated [2023-11-12 02:09:22,410 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[4][0] could not be translated [2023-11-12 02:09:22,410 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[5][0] could not be translated [2023-11-12 02:09:22,411 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~pa~0!base][~pa~0!offset] could not be translated [2023-11-12 02:09:22,412 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~pd2~0!base][0] could not be translated [2023-11-12 02:09:22,412 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short15 could not be translated [2023-11-12 02:09:22,413 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[4][0] could not be translated [2023-11-12 02:09:22,419 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[5][0] could not be translated [2023-11-12 02:09:22,420 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~pa~0!base][~pa~0!offset] could not be translated Derived loop invariant: (0 <= (i + 2147483648)) RESULT: Ultimate proved your program to be correct! [2023-11-12 02:09:22,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bb69be3-990d-455a-9a80-c32b93038ed2/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE