/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/array-examples/standard_partition_original_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 10:16:49,163 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 10:16:49,166 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 10:16:49,201 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 10:16:49,289 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 10:16:49,290 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 10:16:49,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 10:16:49,297 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 10:16:49,355 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 10:16:49,356 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 10:16:49,357 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 10:16:49,357 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 10:16:49,359 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 10:16:49,360 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 10:16:49,362 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 10:16:49,363 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 10:16:49,363 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 10:16:49,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 10:16:49,364 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 10:16:49,365 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 10:16:49,365 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 10:16:49,365 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 10:16:49,365 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 10:16:49,365 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 10:16:49,366 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 10:16:49,366 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 10:16:49,366 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 10:16:49,366 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 10:16:49,366 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 10:16:49,367 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 10:16:49,367 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 10:16:49,367 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 10:16:49,367 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 10:16:49,367 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 10:16:49,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:16:49,368 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 10:16:49,368 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 10:16:49,368 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 10:16:49,368 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 10:16:49,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 10:16:49,369 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 10:16:49,369 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 10:16:49,795 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 10:16:49,833 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 10:16:49,838 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 10:16:49,840 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 10:16:49,840 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 10:16:49,842 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/standard_partition_original_ground.i [2022-10-16 10:16:49,926 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3dc76b367/fcbb13804eb1404ba8d5cf37e0b59917/FLAGc49ec6584 [2022-10-16 10:16:50,563 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 10:16:50,566 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_partition_original_ground.i [2022-10-16 10:16:50,575 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3dc76b367/fcbb13804eb1404ba8d5cf37e0b59917/FLAGc49ec6584 [2022-10-16 10:16:50,900 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3dc76b367/fcbb13804eb1404ba8d5cf37e0b59917 [2022-10-16 10:16:50,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 10:16:50,914 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 10:16:50,921 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 10:16:50,922 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 10:16:50,927 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 10:16:50,928 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:16:50" (1/1) ... [2022-10-16 10:16:50,931 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f0d1e82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:50, skipping insertion in model container [2022-10-16 10:16:50,931 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:16:50" (1/1) ... [2022-10-16 10:16:50,941 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 10:16:50,964 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 10:16:51,198 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_partition_original_ground.i[827,840] [2022-10-16 10:16:51,220 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:16:51,230 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 10:16:51,245 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_partition_original_ground.i[827,840] [2022-10-16 10:16:51,255 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:16:51,277 INFO L208 MainTranslator]: Completed translation [2022-10-16 10:16:51,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:51 WrapperNode [2022-10-16 10:16:51,278 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 10:16:51,279 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 10:16:51,279 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 10:16:51,280 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 10:16:51,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:51" (1/1) ... [2022-10-16 10:16:51,307 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:51" (1/1) ... [2022-10-16 10:16:51,338 INFO L138 Inliner]: procedures = 16, calls = 25, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 92 [2022-10-16 10:16:51,339 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 10:16:51,340 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 10:16:51,340 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 10:16:51,341 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 10:16:51,352 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:51" (1/1) ... [2022-10-16 10:16:51,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:51" (1/1) ... [2022-10-16 10:16:51,358 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:51" (1/1) ... [2022-10-16 10:16:51,359 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:51" (1/1) ... [2022-10-16 10:16:51,380 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:51" (1/1) ... [2022-10-16 10:16:51,389 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:51" (1/1) ... [2022-10-16 10:16:51,391 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:51" (1/1) ... [2022-10-16 10:16:51,392 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:51" (1/1) ... [2022-10-16 10:16:51,398 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 10:16:51,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 10:16:51,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 10:16:51,401 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 10:16:51,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:51" (1/1) ... [2022-10-16 10:16:51,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:16:51,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:16:51,440 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 10:16:51,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 10:16:51,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 10:16:51,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 10:16:51,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 10:16:51,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 10:16:51,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 10:16:51,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 10:16:51,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 10:16:51,495 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-16 10:16:51,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-16 10:16:51,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 10:16:51,571 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 10:16:51,574 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 10:16:51,804 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 10:16:51,812 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 10:16:51,812 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-16 10:16:51,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:16:51 BoogieIcfgContainer [2022-10-16 10:16:51,815 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 10:16:51,818 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 10:16:51,818 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 10:16:51,827 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 10:16:51,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:16:50" (1/3) ... [2022-10-16 10:16:51,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea29dc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:16:51, skipping insertion in model container [2022-10-16 10:16:51,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:51" (2/3) ... [2022-10-16 10:16:51,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea29dc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:16:51, skipping insertion in model container [2022-10-16 10:16:51,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:16:51" (3/3) ... [2022-10-16 10:16:51,838 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_partition_original_ground.i [2022-10-16 10:16:51,892 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 10:16:51,893 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-10-16 10:16:52,004 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 10:16:52,035 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7825c03b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 10:16:52,035 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-10-16 10:16:52,046 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 33 states have (on average 1.6666666666666667) internal successors, (55), 45 states have internal predecessors, (55), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 10:16:52,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 10:16:52,063 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:16:52,064 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 10:16:52,065 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:16:52,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:16:52,071 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2022-10-16 10:16:52,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:16:52,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510385472] [2022-10-16 10:16:52,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:52,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:16:52,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:52,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:16:52,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:16:52,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510385472] [2022-10-16 10:16:52,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510385472] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:16:52,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:16:52,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:16:52,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675527759] [2022-10-16 10:16:52,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:16:52,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:16:52,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:16:52,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:16:52,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:16:52,457 INFO L87 Difference]: Start difference. First operand has 49 states, 33 states have (on average 1.6666666666666667) internal successors, (55), 45 states have internal predecessors, (55), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:16:52,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:16:52,538 INFO L93 Difference]: Finished difference Result 96 states and 118 transitions. [2022-10-16 10:16:52,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:16:52,542 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-10-16 10:16:52,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:16:52,551 INFO L225 Difference]: With dead ends: 96 [2022-10-16 10:16:52,551 INFO L226 Difference]: Without dead ends: 48 [2022-10-16 10:16:52,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:16:52,561 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 3 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:16:52,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 146 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:16:52,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-10-16 10:16:52,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2022-10-16 10:16:52,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 33 states have (on average 1.4848484848484849) internal successors, (49), 44 states have internal predecessors, (49), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 10:16:52,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2022-10-16 10:16:52,616 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 5 [2022-10-16 10:16:52,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:16:52,616 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2022-10-16 10:16:52,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:16:52,617 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2022-10-16 10:16:52,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 10:16:52,618 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:16:52,618 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-10-16 10:16:52,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 10:16:52,619 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:16:52,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:16:52,620 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2022-10-16 10:16:52,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:16:52,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597159913] [2022-10-16 10:16:52,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:52,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:16:52,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:52,774 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:16:52,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:16:52,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597159913] [2022-10-16 10:16:52,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597159913] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:16:52,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:16:52,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:16:52,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069387473] [2022-10-16 10:16:52,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:16:52,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:16:52,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:16:52,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:16:52,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:16:52,783 INFO L87 Difference]: Start difference. First operand 48 states and 53 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:16:52,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:16:52,843 INFO L93 Difference]: Finished difference Result 48 states and 53 transitions. [2022-10-16 10:16:52,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:16:52,844 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 10:16:52,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:16:52,845 INFO L225 Difference]: With dead ends: 48 [2022-10-16 10:16:52,845 INFO L226 Difference]: Without dead ends: 47 [2022-10-16 10:16:52,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:16:52,848 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 5 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:16:52,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 126 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:16:52,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-10-16 10:16:52,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-10-16 10:16:52,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 33 states have (on average 1.4545454545454546) internal successors, (48), 43 states have internal predecessors, (48), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 10:16:52,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2022-10-16 10:16:52,858 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 9 [2022-10-16 10:16:52,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:16:52,859 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 52 transitions. [2022-10-16 10:16:52,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:16:52,859 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2022-10-16 10:16:52,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 10:16:52,860 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:16:52,860 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:16:52,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 10:16:52,861 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:16:52,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:16:52,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1607300635, now seen corresponding path program 1 times [2022-10-16 10:16:52,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:16:52,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915857951] [2022-10-16 10:16:52,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:52,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:16:52,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:53,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:16:53,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:16:53,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915857951] [2022-10-16 10:16:53,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915857951] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:16:53,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [625834699] [2022-10-16 10:16:53,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:53,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:53,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:16:53,025 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:16:53,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 10:16:53,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:53,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 10:16:53,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:16:53,167 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:16:53,167 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:16:53,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [625834699] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:16:53,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:16:53,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-16 10:16:53,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239209974] [2022-10-16 10:16:53,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:16:53,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:16:53,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:16:53,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:16:53,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 10:16:53,171 INFO L87 Difference]: Start difference. First operand 47 states and 52 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:16:53,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:16:53,197 INFO L93 Difference]: Finished difference Result 78 states and 89 transitions. [2022-10-16 10:16:53,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:16:53,198 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-16 10:16:53,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:16:53,200 INFO L225 Difference]: With dead ends: 78 [2022-10-16 10:16:53,200 INFO L226 Difference]: Without dead ends: 77 [2022-10-16 10:16:53,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 10:16:53,203 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 30 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:16:53,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 84 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:16:53,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-10-16 10:16:53,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 54. [2022-10-16 10:16:53,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 40 states have (on average 1.525) internal successors, (61), 50 states have internal predecessors, (61), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 10:16:53,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2022-10-16 10:16:53,217 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 65 transitions. Word has length 10 [2022-10-16 10:16:53,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:16:53,217 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 65 transitions. [2022-10-16 10:16:53,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-10-16 10:16:53,218 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 65 transitions. [2022-10-16 10:16:53,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 10:16:53,219 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:16:53,219 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:16:53,261 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 10:16:53,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:53,435 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:16:53,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:16:53,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1607300443, now seen corresponding path program 1 times [2022-10-16 10:16:53,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:16:53,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059344256] [2022-10-16 10:16:53,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:53,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:16:53,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:53,535 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:16:53,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:16:53,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059344256] [2022-10-16 10:16:53,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059344256] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:16:53,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500020676] [2022-10-16 10:16:53,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:53,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:53,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:16:53,538 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:16:53,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 10:16:53,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:53,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 10:16:53,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:16:53,628 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:16:53,629 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:16:53,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500020676] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:16:53,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:16:53,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-16 10:16:53,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251595749] [2022-10-16 10:16:53,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:16:53,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:16:53,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:16:53,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:16:53,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 10:16:53,632 INFO L87 Difference]: Start difference. First operand 54 states and 65 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:16:53,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:16:53,659 INFO L93 Difference]: Finished difference Result 90 states and 111 transitions. [2022-10-16 10:16:53,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:16:53,660 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-16 10:16:53,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:16:53,663 INFO L225 Difference]: With dead ends: 90 [2022-10-16 10:16:53,663 INFO L226 Difference]: Without dead ends: 89 [2022-10-16 10:16:53,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 10:16:53,665 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 30 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 84 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 [2022-10-16 10:16:53,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 84 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:16:53,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-10-16 10:16:53,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 65. [2022-10-16 10:16:53,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 51 states have (on average 1.5686274509803921) internal successors, (80), 61 states have internal predecessors, (80), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 10:16:53,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 84 transitions. [2022-10-16 10:16:53,681 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 84 transitions. Word has length 10 [2022-10-16 10:16:53,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:16:53,682 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 84 transitions. [2022-10-16 10:16:53,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-10-16 10:16:53,683 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 84 transitions. [2022-10-16 10:16:53,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 10:16:53,683 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:16:53,683 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-10-16 10:16:53,722 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 10:16:53,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-10-16 10:16:53,899 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:16:53,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:16:53,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2022-10-16 10:16:53,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:16:53,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719980116] [2022-10-16 10:16:53,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:53,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:16:53,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:54,011 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:16:54,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:16:54,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719980116] [2022-10-16 10:16:54,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719980116] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:16:54,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779835404] [2022-10-16 10:16:54,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:54,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:54,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:16:54,014 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:16:54,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 10:16:54,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:54,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:16:54,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:16:54,171 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:16:54,171 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:16:54,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1779835404] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:16:54,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:16:54,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 10:16:54,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576762953] [2022-10-16 10:16:54,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:16:54,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 10:16:54,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:16:54,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 10:16:54,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 10:16:54,175 INFO L87 Difference]: Start difference. First operand 65 states and 84 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:16:54,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:16:54,269 INFO L93 Difference]: Finished difference Result 65 states and 84 transitions. [2022-10-16 10:16:54,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:16:54,270 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-16 10:16:54,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:16:54,274 INFO L225 Difference]: With dead ends: 65 [2022-10-16 10:16:54,274 INFO L226 Difference]: Without dead ends: 64 [2022-10-16 10:16:54,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 10:16:54,281 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 72 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:16:54,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 89 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:16:54,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-10-16 10:16:54,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 61. [2022-10-16 10:16:54,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 48 states have (on average 1.5833333333333333) internal successors, (76), 57 states have internal predecessors, (76), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 10:16:54,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 80 transitions. [2022-10-16 10:16:54,306 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 80 transitions. Word has length 10 [2022-10-16 10:16:54,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:16:54,308 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 80 transitions. [2022-10-16 10:16:54,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:16:54,309 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 80 transitions. [2022-10-16 10:16:54,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 10:16:54,309 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:16:54,310 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:16:54,350 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 10:16:54,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:54,526 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:16:54,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:16:54,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1713287797, now seen corresponding path program 1 times [2022-10-16 10:16:54,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:16:54,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794469532] [2022-10-16 10:16:54,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:54,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:16:54,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:54,606 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:16:54,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:16:54,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794469532] [2022-10-16 10:16:54,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794469532] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:16:54,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [838745465] [2022-10-16 10:16:54,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:54,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:54,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:16:54,609 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:16:54,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 10:16:54,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:54,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 10:16:54,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:16:54,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:16:54,691 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:16:54,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [838745465] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:16:54,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:16:54,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-16 10:16:54,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886323159] [2022-10-16 10:16:54,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:16:54,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:16:54,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:16:54,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:16:54,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 10:16:54,694 INFO L87 Difference]: Start difference. First operand 61 states and 80 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-10-16 10:16:54,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:16:54,707 INFO L93 Difference]: Finished difference Result 61 states and 80 transitions. [2022-10-16 10:16:54,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:16:54,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-16 10:16:54,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:16:54,709 INFO L225 Difference]: With dead ends: 61 [2022-10-16 10:16:54,709 INFO L226 Difference]: Without dead ends: 60 [2022-10-16 10:16:54,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 10:16:54,711 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 28 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:16:54,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 47 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:16:54,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-10-16 10:16:54,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2022-10-16 10:16:54,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 48 states have (on average 1.5416666666666667) internal successors, (74), 56 states have internal predecessors, (74), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 10:16:54,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 78 transitions. [2022-10-16 10:16:54,720 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 78 transitions. Word has length 11 [2022-10-16 10:16:54,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:16:54,720 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 78 transitions. [2022-10-16 10:16:54,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-10-16 10:16:54,721 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 78 transitions. [2022-10-16 10:16:54,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 10:16:54,722 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:16:54,722 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:16:54,760 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 10:16:54,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:54,937 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:16:54,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:16:54,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1713293755, now seen corresponding path program 1 times [2022-10-16 10:16:54,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:16:54,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577237548] [2022-10-16 10:16:54,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:54,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:16:54,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:55,003 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:16:55,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:16:55,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577237548] [2022-10-16 10:16:55,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577237548] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:16:55,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519921845] [2022-10-16 10:16:55,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:55,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:55,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:16:55,006 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:16:55,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 10:16:55,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:55,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 10:16:55,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:16:55,082 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:16:55,083 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:16:55,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519921845] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:16:55,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:16:55,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-16 10:16:55,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364780469] [2022-10-16 10:16:55,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:16:55,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:16:55,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:16:55,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:16:55,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 10:16:55,085 INFO L87 Difference]: Start difference. First operand 60 states and 78 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-10-16 10:16:55,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:16:55,099 INFO L93 Difference]: Finished difference Result 60 states and 78 transitions. [2022-10-16 10:16:55,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:16:55,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-16 10:16:55,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:16:55,100 INFO L225 Difference]: With dead ends: 60 [2022-10-16 10:16:55,100 INFO L226 Difference]: Without dead ends: 59 [2022-10-16 10:16:55,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 10:16:55,102 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 27 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:16:55,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 45 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:16:55,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-10-16 10:16:55,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-10-16 10:16:55,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 48 states have (on average 1.5) internal successors, (72), 55 states have internal predecessors, (72), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 10:16:55,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 76 transitions. [2022-10-16 10:16:55,124 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 76 transitions. Word has length 11 [2022-10-16 10:16:55,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:16:55,125 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 76 transitions. [2022-10-16 10:16:55,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-10-16 10:16:55,125 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 76 transitions. [2022-10-16 10:16:55,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 10:16:55,126 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:16:55,126 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:16:55,165 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 10:16:55,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:55,328 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:16:55,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:16:55,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1572314082, now seen corresponding path program 1 times [2022-10-16 10:16:55,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:16:55,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904667347] [2022-10-16 10:16:55,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:55,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:16:55,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:55,451 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:16:55,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:16:55,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904667347] [2022-10-16 10:16:55,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904667347] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:16:55,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158648198] [2022-10-16 10:16:55,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:55,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:55,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:16:55,455 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:16:55,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 10:16:55,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:55,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 10:16:55,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:16:55,549 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:16:55,550 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:16:55,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [158648198] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:16:55,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:16:55,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-16 10:16:55,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597972239] [2022-10-16 10:16:55,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:16:55,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:16:55,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:16:55,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:16:55,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 10:16:55,552 INFO L87 Difference]: Start difference. First operand 59 states and 76 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-10-16 10:16:55,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:16:55,579 INFO L93 Difference]: Finished difference Result 88 states and 110 transitions. [2022-10-16 10:16:55,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:16:55,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 10:16:55,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:16:55,580 INFO L225 Difference]: With dead ends: 88 [2022-10-16 10:16:55,581 INFO L226 Difference]: Without dead ends: 65 [2022-10-16 10:16:55,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 10:16:55,582 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 5 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 70 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 [2022-10-16 10:16:55,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 70 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:16:55,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-10-16 10:16:55,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 63. [2022-10-16 10:16:55,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 52 states have (on average 1.4423076923076923) internal successors, (75), 59 states have internal predecessors, (75), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 10:16:55,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 79 transitions. [2022-10-16 10:16:55,591 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 79 transitions. Word has length 12 [2022-10-16 10:16:55,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:16:55,592 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 79 transitions. [2022-10-16 10:16:55,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-10-16 10:16:55,592 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 79 transitions. [2022-10-16 10:16:55,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 10:16:55,593 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:16:55,593 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:16:55,631 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 10:16:55,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:55,803 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:16:55,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:16:55,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1497096211, now seen corresponding path program 1 times [2022-10-16 10:16:55,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:16:55,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619776836] [2022-10-16 10:16:55,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:55,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:16:55,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:55,861 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:16:55,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:16:55,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619776836] [2022-10-16 10:16:55,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619776836] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:16:55,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721657233] [2022-10-16 10:16:55,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:55,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:55,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:16:55,863 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:16:55,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 10:16:55,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:55,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 10:16:55,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:16:55,956 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:16:55,957 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:16:55,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721657233] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:16:55,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:16:55,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-16 10:16:55,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942061817] [2022-10-16 10:16:55,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:16:55,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:16:55,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:16:55,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:16:55,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 10:16:55,959 INFO L87 Difference]: Start difference. First operand 63 states and 79 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-10-16 10:16:55,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:16:55,974 INFO L93 Difference]: Finished difference Result 63 states and 79 transitions. [2022-10-16 10:16:55,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:16:55,974 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-10-16 10:16:55,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:16:55,975 INFO L225 Difference]: With dead ends: 63 [2022-10-16 10:16:55,975 INFO L226 Difference]: Without dead ends: 62 [2022-10-16 10:16:55,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 10:16:55,977 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 24 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:16:55,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 43 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:16:55,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-10-16 10:16:55,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-10-16 10:16:55,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 52 states have (on average 1.3846153846153846) internal successors, (72), 58 states have internal predecessors, (72), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 10:16:55,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 76 transitions. [2022-10-16 10:16:55,984 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 76 transitions. Word has length 13 [2022-10-16 10:16:55,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:16:55,985 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 76 transitions. [2022-10-16 10:16:55,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-10-16 10:16:55,985 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 76 transitions. [2022-10-16 10:16:55,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 10:16:55,986 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:16:55,986 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:16:56,026 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 10:16:56,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:56,201 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:16:56,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:16:56,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1052763346, now seen corresponding path program 1 times [2022-10-16 10:16:56,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:16:56,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73162600] [2022-10-16 10:16:56,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:56,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:16:56,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:56,264 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 10:16:56,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:16:56,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73162600] [2022-10-16 10:16:56,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73162600] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:16:56,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1695204567] [2022-10-16 10:16:56,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:56,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:56,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:16:56,266 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:16:56,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 10:16:56,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:56,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:16:56,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:16:56,360 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 10:16:56,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:16:56,400 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 10:16:56,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1695204567] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:16:56,400 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:16:56,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-16 10:16:56,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174030362] [2022-10-16 10:16:56,401 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:16:56,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 10:16:56,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:16:56,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 10:16:56,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-16 10:16:56,402 INFO L87 Difference]: Start difference. First operand 62 states and 76 transitions. Second operand has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 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) [2022-10-16 10:16:56,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:16:56,454 INFO L93 Difference]: Finished difference Result 125 states and 154 transitions. [2022-10-16 10:16:56,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 10:16:56,455 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-10-16 10:16:56,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:16:56,456 INFO L225 Difference]: With dead ends: 125 [2022-10-16 10:16:56,456 INFO L226 Difference]: Without dead ends: 70 [2022-10-16 10:16:56,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:16:56,458 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:16:56,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 234 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:16:56,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-10-16 10:16:56,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2022-10-16 10:16:56,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 60 states have (on average 1.3333333333333333) internal successors, (80), 66 states have internal predecessors, (80), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 10:16:56,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 84 transitions. [2022-10-16 10:16:56,466 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 84 transitions. Word has length 16 [2022-10-16 10:16:56,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:16:56,466 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 84 transitions. [2022-10-16 10:16:56,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 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) [2022-10-16 10:16:56,466 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 84 transitions. [2022-10-16 10:16:56,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 10:16:56,467 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:16:56,467 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:16:56,505 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 10:16:56,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-16 10:16:56,682 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:16:56,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:16:56,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1666085578, now seen corresponding path program 2 times [2022-10-16 10:16:56,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:16:56,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235348469] [2022-10-16 10:16:56,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:56,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:16:56,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:56,761 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 10:16:56,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:16:56,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235348469] [2022-10-16 10:16:56,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235348469] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:16:56,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422023797] [2022-10-16 10:16:56,762 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:16:56,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:56,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:16:56,763 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:16:56,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 10:16:56,841 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:16:56,842 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:16:56,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:16:56,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:16:56,920 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 10:16:56,921 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:16:57,022 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 10:16:57,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422023797] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:16:57,023 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:16:57,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 9, 9] total 18 [2022-10-16 10:16:57,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916183197] [2022-10-16 10:16:57,023 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:16:57,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 10:16:57,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:16:57,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 10:16:57,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-10-16 10:16:57,025 INFO L87 Difference]: Start difference. First operand 70 states and 84 transitions. Second operand has 18 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 18 states have internal predecessors, (51), 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) [2022-10-16 10:16:57,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:16:57,281 INFO L93 Difference]: Finished difference Result 196 states and 237 transitions. [2022-10-16 10:16:57,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 10:16:57,282 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 18 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-10-16 10:16:57,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:16:57,283 INFO L225 Difference]: With dead ends: 196 [2022-10-16 10:16:57,283 INFO L226 Difference]: Without dead ends: 141 [2022-10-16 10:16:57,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=654, Unknown=0, NotChecked=0, Total=930 [2022-10-16 10:16:57,285 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 117 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:16:57,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 443 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:16:57,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-10-16 10:16:57,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 99. [2022-10-16 10:16:57,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 89 states have (on average 1.2921348314606742) internal successors, (115), 95 states have internal predecessors, (115), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 10:16:57,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 119 transitions. [2022-10-16 10:16:57,297 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 119 transitions. Word has length 24 [2022-10-16 10:16:57,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:16:57,297 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 119 transitions. [2022-10-16 10:16:57,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 18 states have internal predecessors, (51), 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) [2022-10-16 10:16:57,297 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 119 transitions. [2022-10-16 10:16:57,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-16 10:16:57,299 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:16:57,299 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:16:57,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 10:16:57,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:57,514 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:16:57,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:16:57,515 INFO L85 PathProgramCache]: Analyzing trace with hash -546876404, now seen corresponding path program 1 times [2022-10-16 10:16:57,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:16:57,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642899296] [2022-10-16 10:16:57,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:57,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:16:57,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:57,649 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-10-16 10:16:57,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:16:57,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642899296] [2022-10-16 10:16:57,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642899296] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:16:57,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666761185] [2022-10-16 10:16:57,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:57,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:57,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:16:57,660 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:16:57,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 10:16:57,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:57,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 10:16:57,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:16:57,914 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 10:16:57,914 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:16:58,211 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 10:16:58,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666761185] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:16:58,211 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:16:58,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 17, 17] total 34 [2022-10-16 10:16:58,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088700742] [2022-10-16 10:16:58,212 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:16:58,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-10-16 10:16:58,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:16:58,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-10-16 10:16:58,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=277, Invalid=845, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 10:16:58,216 INFO L87 Difference]: Start difference. First operand 99 states and 119 transitions. Second operand has 34 states, 34 states have (on average 2.4411764705882355) internal successors, (83), 34 states have internal predecessors, (83), 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) [2022-10-16 10:16:58,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:16:58,893 INFO L93 Difference]: Finished difference Result 263 states and 324 transitions. [2022-10-16 10:16:58,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-10-16 10:16:58,894 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.4411764705882355) internal successors, (83), 34 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2022-10-16 10:16:58,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:16:58,895 INFO L225 Difference]: With dead ends: 263 [2022-10-16 10:16:58,895 INFO L226 Difference]: Without dead ends: 195 [2022-10-16 10:16:58,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 905 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1068, Invalid=2838, Unknown=0, NotChecked=0, Total=3906 [2022-10-16 10:16:58,899 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 165 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:16:58,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 477 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:16:58,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-10-16 10:16:58,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 152. [2022-10-16 10:16:58,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 142 states have (on average 1.2464788732394365) internal successors, (177), 148 states have internal predecessors, (177), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 10:16:58,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 181 transitions. [2022-10-16 10:16:58,913 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 181 transitions. Word has length 40 [2022-10-16 10:16:58,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:16:58,913 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 181 transitions. [2022-10-16 10:16:58,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.4411764705882355) internal successors, (83), 34 states have internal predecessors, (83), 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) [2022-10-16 10:16:58,914 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 181 transitions. [2022-10-16 10:16:58,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-16 10:16:58,916 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:16:58,916 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 10:16:58,945 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 10:16:59,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-10-16 10:16:59,129 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:16:59,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:16:59,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1117628247, now seen corresponding path program 1 times [2022-10-16 10:16:59,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:16:59,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417275695] [2022-10-16 10:16:59,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:59,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:16:59,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:59,259 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2022-10-16 10:16:59,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:16:59,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417275695] [2022-10-16 10:16:59,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417275695] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:16:59,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:16:59,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 10:16:59,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437581760] [2022-10-16 10:16:59,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:16:59,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:16:59,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:16:59,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:16:59,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:16:59,262 INFO L87 Difference]: Start difference. First operand 152 states and 181 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-10-16 10:16:59,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:16:59,280 INFO L93 Difference]: Finished difference Result 152 states and 181 transitions. [2022-10-16 10:16:59,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:16:59,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-10-16 10:16:59,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:16:59,281 INFO L225 Difference]: With dead ends: 152 [2022-10-16 10:16:59,282 INFO L226 Difference]: Without dead ends: 151 [2022-10-16 10:16:59,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:16:59,283 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 11 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:16:59,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 63 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:16:59,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-10-16 10:16:59,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2022-10-16 10:16:59,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 142 states have (on average 1.204225352112676) internal successors, (171), 147 states have internal predecessors, (171), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 10:16:59,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 175 transitions. [2022-10-16 10:16:59,295 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 175 transitions. Word has length 74 [2022-10-16 10:16:59,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:16:59,296 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 175 transitions. [2022-10-16 10:16:59,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-10-16 10:16:59,296 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 175 transitions. [2022-10-16 10:16:59,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-10-16 10:16:59,297 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:16:59,297 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1] [2022-10-16 10:16:59,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 10:16:59,298 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:16:59,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:16:59,298 INFO L85 PathProgramCache]: Analyzing trace with hash 501666361, now seen corresponding path program 3 times [2022-10-16 10:16:59,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:16:59,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029855885] [2022-10-16 10:16:59,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:59,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:16:59,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:59,460 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-10-16 10:16:59,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:16:59,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029855885] [2022-10-16 10:16:59,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029855885] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:16:59,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543013037] [2022-10-16 10:16:59,461 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:16:59,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:59,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:16:59,463 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:16:59,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 10:16:59,560 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-16 10:16:59,560 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:16:59,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:16:59,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:16:59,681 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-10-16 10:16:59,681 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:16:59,786 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-10-16 10:16:59,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [543013037] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:16:59,786 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:16:59,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2022-10-16 10:16:59,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760510711] [2022-10-16 10:16:59,787 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:16:59,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 10:16:59,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:16:59,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 10:16:59,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2022-10-16 10:16:59,788 INFO L87 Difference]: Start difference. First operand 151 states and 175 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 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) [2022-10-16 10:16:59,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:16:59,888 INFO L93 Difference]: Finished difference Result 358 states and 433 transitions. [2022-10-16 10:16:59,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 10:16:59,889 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-10-16 10:16:59,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:16:59,893 INFO L225 Difference]: With dead ends: 358 [2022-10-16 10:16:59,893 INFO L226 Difference]: Without dead ends: 357 [2022-10-16 10:16:59,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2022-10-16 10:16:59,894 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 213 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:16:59,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 276 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:16:59,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2022-10-16 10:16:59,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 243. [2022-10-16 10:16:59,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 234 states have (on average 1.2435897435897436) internal successors, (291), 239 states have internal predecessors, (291), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 10:16:59,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 295 transitions. [2022-10-16 10:16:59,914 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 295 transitions. Word has length 78 [2022-10-16 10:16:59,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:16:59,916 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 295 transitions. [2022-10-16 10:16:59,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 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) [2022-10-16 10:16:59,917 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 295 transitions. [2022-10-16 10:16:59,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-10-16 10:16:59,919 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:16:59,919 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1] [2022-10-16 10:16:59,964 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 10:17:00,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-16 10:17:00,134 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:17:00,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:17:00,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1452182533, now seen corresponding path program 2 times [2022-10-16 10:17:00,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:17:00,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389987730] [2022-10-16 10:17:00,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:17:00,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:17:00,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:17:00,284 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-10-16 10:17:00,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:17:00,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389987730] [2022-10-16 10:17:00,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389987730] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:17:00,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111667850] [2022-10-16 10:17:00,285 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:17:00,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:17:00,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:17:00,287 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:17:00,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 10:17:00,409 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:17:00,410 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:17:00,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 32 conjunts are in the unsatisfiable core [2022-10-16 10:17:00,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:17:00,948 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 10:17:00,948 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:17:01,942 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 10:17:01,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2111667850] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:17:01,942 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:17:01,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 33, 33] total 67 [2022-10-16 10:17:01,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767217074] [2022-10-16 10:17:01,943 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:17:01,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-10-16 10:17:01,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:17:01,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-10-16 10:17:01,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1065, Invalid=3357, Unknown=0, NotChecked=0, Total=4422 [2022-10-16 10:17:01,948 INFO L87 Difference]: Start difference. First operand 243 states and 295 transitions. Second operand has 67 states, 67 states have (on average 2.283582089552239) internal successors, (153), 67 states have internal predecessors, (153), 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) [2022-10-16 10:17:03,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:17:03,702 INFO L93 Difference]: Finished difference Result 606 states and 753 transitions. [2022-10-16 10:17:03,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-10-16 10:17:03,703 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 2.283582089552239) internal successors, (153), 67 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-10-16 10:17:03,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:17:03,706 INFO L225 Difference]: With dead ends: 606 [2022-10-16 10:17:03,706 INFO L226 Difference]: Without dead ends: 426 [2022-10-16 10:17:03,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4219 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=4253, Invalid=12003, Unknown=0, NotChecked=0, Total=16256 [2022-10-16 10:17:03,717 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 402 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:17:03,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 633 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:17:03,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2022-10-16 10:17:03,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 362. [2022-10-16 10:17:03,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 353 states have (on average 1.2039660056657224) internal successors, (425), 358 states have internal predecessors, (425), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 10:17:03,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 429 transitions. [2022-10-16 10:17:03,741 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 429 transitions. Word has length 78 [2022-10-16 10:17:03,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:17:03,742 INFO L495 AbstractCegarLoop]: Abstraction has 362 states and 429 transitions. [2022-10-16 10:17:03,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 2.283582089552239) internal successors, (153), 67 states have internal predecessors, (153), 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) [2022-10-16 10:17:03,742 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 429 transitions. [2022-10-16 10:17:03,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-10-16 10:17:03,745 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:17:03,745 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:17:03,788 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 10:17:03,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 10:17:03,959 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:17:03,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:17:03,960 INFO L85 PathProgramCache]: Analyzing trace with hash -175129513, now seen corresponding path program 1 times [2022-10-16 10:17:03,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:17:03,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704440663] [2022-10-16 10:17:03,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:17:03,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:17:04,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:17:04,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 10:17:04,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:17:04,156 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1891 trivial. 0 not checked. [2022-10-16 10:17:04,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:17:04,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704440663] [2022-10-16 10:17:04,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704440663] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:17:04,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976886069] [2022-10-16 10:17:04,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:17:04,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:17:04,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:17:04,158 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:17:04,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 10:17:04,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:17:04,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 64 conjunts are in the unsatisfiable core [2022-10-16 10:17:04,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:17:05,953 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:17:05,953 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:17:09,812 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:17:09,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976886069] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:17:09,812 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:17:09,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 65, 65] total 130 [2022-10-16 10:17:09,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080619012] [2022-10-16 10:17:09,812 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:17:09,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-10-16 10:17:09,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:17:09,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-10-16 10:17:09,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4165, Invalid=12605, Unknown=0, NotChecked=0, Total=16770 [2022-10-16 10:17:09,822 INFO L87 Difference]: Start difference. First operand 362 states and 429 transitions. Second operand has 130 states, 130 states have (on average 2.1846153846153844) internal successors, (284), 130 states have internal predecessors, (284), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 10:17:16,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:17:16,293 INFO L93 Difference]: Finished difference Result 725 states and 890 transitions. [2022-10-16 10:17:16,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-10-16 10:17:16,294 INFO L78 Accepts]: Start accepts. Automaton has has 130 states, 130 states have (on average 2.1846153846153844) internal successors, (284), 130 states have internal predecessors, (284), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 144 [2022-10-16 10:17:16,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:17:16,300 INFO L225 Difference]: With dead ends: 725 [2022-10-16 10:17:16,300 INFO L226 Difference]: Without dead ends: 490 [2022-10-16 10:17:16,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 253 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17765 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=16572, Invalid=48198, Unknown=0, NotChecked=0, Total=64770 [2022-10-16 10:17:16,317 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 928 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 928 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 10:17:16,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [928 Valid, 363 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 10:17:16,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2022-10-16 10:17:16,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 490. [2022-10-16 10:17:16,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 481 states have (on average 1.1455301455301454) internal successors, (551), 486 states have internal predecessors, (551), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 10:17:16,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 555 transitions. [2022-10-16 10:17:16,349 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 555 transitions. Word has length 144 [2022-10-16 10:17:16,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:17:16,350 INFO L495 AbstractCegarLoop]: Abstraction has 490 states and 555 transitions. [2022-10-16 10:17:16,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 2.1846153846153844) internal successors, (284), 130 states have internal predecessors, (284), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 10:17:16,351 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 555 transitions. [2022-10-16 10:17:16,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-10-16 10:17:16,355 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:17:16,355 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1] [2022-10-16 10:17:16,394 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-16 10:17:16,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-16 10:17:16,570 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:17:16,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:17:16,571 INFO L85 PathProgramCache]: Analyzing trace with hash -282184226, now seen corresponding path program 3 times [2022-10-16 10:17:16,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:17:16,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209907582] [2022-10-16 10:17:16,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:17:16,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:17:16,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:17:17,119 INFO L134 CoverageAnalysis]: Checked inductivity of 7902 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 7875 trivial. 0 not checked. [2022-10-16 10:17:17,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:17:17,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209907582] [2022-10-16 10:17:17,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209907582] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:17:17,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091237185] [2022-10-16 10:17:17,120 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:17:17,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:17:17,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:17:17,121 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:17:17,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-16 10:17:17,281 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-10-16 10:17:17,281 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:17:17,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:17:17,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:17:17,556 INFO L134 CoverageAnalysis]: Checked inductivity of 7902 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 7875 trivial. 0 not checked. [2022-10-16 10:17:17,556 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:17:17,886 INFO L134 CoverageAnalysis]: Checked inductivity of 7902 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 7875 trivial. 0 not checked. [2022-10-16 10:17:17,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2091237185] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:17:17,887 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:17:17,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-16 10:17:17,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243146810] [2022-10-16 10:17:17,887 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:17:17,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 10:17:17,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:17:17,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 10:17:17,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2022-10-16 10:17:17,889 INFO L87 Difference]: Start difference. First operand 490 states and 555 transitions. Second operand has 11 states, 10 states have (on average 6.5) internal successors, (65), 11 states have internal predecessors, (65), 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) [2022-10-16 10:17:18,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:17:18,024 INFO L93 Difference]: Finished difference Result 918 states and 1108 transitions. [2022-10-16 10:17:18,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 10:17:18,025 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.5) internal successors, (65), 11 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 276 [2022-10-16 10:17:18,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:17:18,031 INFO L225 Difference]: With dead ends: 918 [2022-10-16 10:17:18,031 INFO L226 Difference]: Without dead ends: 917 [2022-10-16 10:17:18,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 555 GetRequests, 546 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2022-10-16 10:17:18,033 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 337 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:17:18,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 350 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:17:18,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2022-10-16 10:17:18,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 765. [2022-10-16 10:17:18,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 765 states, 756 states have (on average 1.1917989417989419) internal successors, (901), 761 states have internal predecessors, (901), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 10:17:18,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 905 transitions. [2022-10-16 10:17:18,079 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 905 transitions. Word has length 276 [2022-10-16 10:17:18,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:17:18,080 INFO L495 AbstractCegarLoop]: Abstraction has 765 states and 905 transitions. [2022-10-16 10:17:18,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.5) internal successors, (65), 11 states have internal predecessors, (65), 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) [2022-10-16 10:17:18,080 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 905 transitions. [2022-10-16 10:17:18,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-10-16 10:17:18,085 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:17:18,085 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:17:18,129 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-16 10:17:18,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:17:18,299 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:17:18,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:17:18,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1780692310, now seen corresponding path program 2 times [2022-10-16 10:17:18,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:17:18,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787775026] [2022-10-16 10:17:18,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:17:18,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:17:18,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:17:18,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-10-16 10:17:18,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:17:18,767 INFO L134 CoverageAnalysis]: Checked inductivity of 7883 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7883 trivial. 0 not checked. [2022-10-16 10:17:18,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:17:18,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787775026] [2022-10-16 10:17:18,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787775026] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:17:18,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:17:18,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 10:17:18,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332105545] [2022-10-16 10:17:18,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:17:18,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:17:18,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:17:18,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:17:18,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:17:18,774 INFO L87 Difference]: Start difference. First operand 765 states and 905 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 10:17:18,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:17:18,854 INFO L93 Difference]: Finished difference Result 806 states and 950 transitions. [2022-10-16 10:17:18,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:17:18,854 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 278 [2022-10-16 10:17:18,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:17:18,859 INFO L225 Difference]: With dead ends: 806 [2022-10-16 10:17:18,859 INFO L226 Difference]: Without dead ends: 785 [2022-10-16 10:17:18,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:17:18,860 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 19 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:17:18,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 109 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:17:18,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2022-10-16 10:17:18,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 767. [2022-10-16 10:17:18,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 767 states, 758 states have (on average 1.1912928759894459) internal successors, (903), 763 states have internal predecessors, (903), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 10:17:18,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 907 transitions. [2022-10-16 10:17:18,906 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 907 transitions. Word has length 278 [2022-10-16 10:17:18,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:17:18,906 INFO L495 AbstractCegarLoop]: Abstraction has 767 states and 907 transitions. [2022-10-16 10:17:18,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 10:17:18,907 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 907 transitions. [2022-10-16 10:17:18,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-10-16 10:17:18,911 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:17:18,911 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:17:18,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-16 10:17:18,912 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:17:18,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:17:18,913 INFO L85 PathProgramCache]: Analyzing trace with hash -434479056, now seen corresponding path program 1 times [2022-10-16 10:17:18,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:17:18,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296701499] [2022-10-16 10:17:18,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:17:18,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:17:19,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:17:19,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-10-16 10:17:19,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:17:19,407 INFO L134 CoverageAnalysis]: Checked inductivity of 7881 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7881 trivial. 0 not checked. [2022-10-16 10:17:19,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:17:19,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296701499] [2022-10-16 10:17:19,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296701499] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:17:19,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:17:19,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:17:19,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056173933] [2022-10-16 10:17:19,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:17:19,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:17:19,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:17:19,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:17:19,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:17:19,411 INFO L87 Difference]: Start difference. First operand 767 states and 907 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 10:17:19,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:17:19,464 INFO L93 Difference]: Finished difference Result 784 states and 927 transitions. [2022-10-16 10:17:19,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:17:19,465 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 278 [2022-10-16 10:17:19,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:17:19,470 INFO L225 Difference]: With dead ends: 784 [2022-10-16 10:17:19,470 INFO L226 Difference]: Without dead ends: 782 [2022-10-16 10:17:19,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:17:19,472 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 10 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:17:19,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 106 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:17:19,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2022-10-16 10:17:19,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 773. [2022-10-16 10:17:19,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 773 states, 763 states have (on average 1.1913499344692005) internal successors, (909), 768 states have internal predecessors, (909), 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) [2022-10-16 10:17:19,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 915 transitions. [2022-10-16 10:17:19,516 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 915 transitions. Word has length 278 [2022-10-16 10:17:19,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:17:19,517 INFO L495 AbstractCegarLoop]: Abstraction has 773 states and 915 transitions. [2022-10-16 10:17:19,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 10:17:19,517 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 915 transitions. [2022-10-16 10:17:19,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2022-10-16 10:17:19,521 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:17:19,521 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:17:19,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-16 10:17:19,522 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:17:19,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:17:19,522 INFO L85 PathProgramCache]: Analyzing trace with hash -655325600, now seen corresponding path program 1 times [2022-10-16 10:17:19,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:17:19,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131210154] [2022-10-16 10:17:19,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:17:19,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:17:19,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:17:19,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-10-16 10:17:19,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:17:19,952 INFO L134 CoverageAnalysis]: Checked inductivity of 7883 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7883 trivial. 0 not checked. [2022-10-16 10:17:19,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:17:19,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131210154] [2022-10-16 10:17:19,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131210154] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:17:19,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:17:19,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:17:19,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448472612] [2022-10-16 10:17:19,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:17:19,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:17:19,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:17:19,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:17:19,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:17:19,955 INFO L87 Difference]: Start difference. First operand 773 states and 915 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 10:17:20,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:17:20,014 INFO L93 Difference]: Finished difference Result 782 states and 925 transitions. [2022-10-16 10:17:20,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:17:20,015 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 280 [2022-10-16 10:17:20,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:17:20,020 INFO L225 Difference]: With dead ends: 782 [2022-10-16 10:17:20,020 INFO L226 Difference]: Without dead ends: 780 [2022-10-16 10:17:20,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:17:20,022 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 8 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:17:20,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 106 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:17:20,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2022-10-16 10:17:20,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 779. [2022-10-16 10:17:20,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 779 states, 768 states have (on average 1.1901041666666667) internal successors, (914), 773 states have internal predecessors, (914), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-16 10:17:20,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 922 transitions. [2022-10-16 10:17:20,075 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 922 transitions. Word has length 280 [2022-10-16 10:17:20,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:17:20,075 INFO L495 AbstractCegarLoop]: Abstraction has 779 states and 922 transitions. [2022-10-16 10:17:20,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 10:17:20,076 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 922 transitions. [2022-10-16 10:17:20,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-10-16 10:17:20,080 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:17:20,081 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:17:20,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-16 10:17:20,081 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:17:20,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:17:20,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1913011563, now seen corresponding path program 1 times [2022-10-16 10:17:20,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:17:20,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714215978] [2022-10-16 10:17:20,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:17:20,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:17:20,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:17:20,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-10-16 10:17:20,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:17:20,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-10-16 10:17:20,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:17:20,561 INFO L134 CoverageAnalysis]: Checked inductivity of 7890 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 7884 trivial. 0 not checked. [2022-10-16 10:17:20,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:17:20,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714215978] [2022-10-16 10:17:20,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714215978] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:17:20,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793819346] [2022-10-16 10:17:20,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:17:20,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:17:20,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:17:20,566 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:17:20,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-16 10:17:20,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:17:20,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 957 conjuncts, 128 conjunts are in the unsatisfiable core [2022-10-16 10:17:20,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:17:26,529 INFO L134 CoverageAnalysis]: Checked inductivity of 7890 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 10:17:26,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:17:41,133 INFO L134 CoverageAnalysis]: Checked inductivity of 7890 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 10:17:41,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1793819346] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:17:41,133 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:17:41,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 129, 129] total 259 [2022-10-16 10:17:41,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032746386] [2022-10-16 10:17:41,134 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:17:41,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 259 states [2022-10-16 10:17:41,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:17:41,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 259 interpolants. [2022-10-16 10:17:41,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16521, Invalid=50301, Unknown=0, NotChecked=0, Total=66822 [2022-10-16 10:17:41,148 INFO L87 Difference]: Start difference. First operand 779 states and 922 transitions. Second operand has 259 states, 259 states have (on average 2.1274131274131274) internal successors, (551), 259 states have internal predecessors, (551), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 10:18:07,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:18:07,452 INFO L93 Difference]: Finished difference Result 1559 states and 1908 transitions. [2022-10-16 10:18:07,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 258 states. [2022-10-16 10:18:07,453 INFO L78 Accepts]: Start accepts. Automaton has has 259 states, 259 states have (on average 2.1274131274131274) internal successors, (551), 259 states have internal predecessors, (551), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 288 [2022-10-16 10:18:07,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:18:07,459 INFO L225 Difference]: With dead ends: 1559 [2022-10-16 10:18:07,459 INFO L226 Difference]: Without dead ends: 1035 [2022-10-16 10:18:07,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 836 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 510 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73651 ImplicationChecksByTransitivity, 41.8s TimeCoverageRelationStatistics Valid=66173, Invalid=195459, Unknown=0, NotChecked=0, Total=261632 [2022-10-16 10:18:07,483 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 1892 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 877 mSolverCounterSat, 323 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1892 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 1200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 323 IncrementalHoareTripleChecker+Valid, 877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 10:18:07,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1892 Valid, 497 Invalid, 1200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [323 Valid, 877 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-16 10:18:07,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1035 states. [2022-10-16 10:18:07,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1035 to 1035. [2022-10-16 10:18:07,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1035 states, 1024 states have (on average 1.1396484375) internal successors, (1167), 1029 states have internal predecessors, (1167), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-16 10:18:07,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1175 transitions. [2022-10-16 10:18:07,537 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1175 transitions. Word has length 288 [2022-10-16 10:18:07,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:18:07,538 INFO L495 AbstractCegarLoop]: Abstraction has 1035 states and 1175 transitions. [2022-10-16 10:18:07,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 259 states, 259 states have (on average 2.1274131274131274) internal successors, (551), 259 states have internal predecessors, (551), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 10:18:07,539 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1175 transitions. [2022-10-16 10:18:07,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 551 [2022-10-16 10:18:07,551 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:18:07,551 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 127, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:18:07,593 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-16 10:18:07,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:18:07,767 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:18:07,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:18:07,768 INFO L85 PathProgramCache]: Analyzing trace with hash -503354520, now seen corresponding path program 2 times [2022-10-16 10:18:07,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:18:07,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515851550] [2022-10-16 10:18:07,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:18:07,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:18:07,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:18:08,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 532 [2022-10-16 10:18:08,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:18:08,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 542 [2022-10-16 10:18:08,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:18:08,752 INFO L134 CoverageAnalysis]: Checked inductivity of 32157 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 32140 trivial. 0 not checked. [2022-10-16 10:18:08,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:18:08,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515851550] [2022-10-16 10:18:08,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515851550] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:18:08,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1402889027] [2022-10-16 10:18:08,753 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:18:08,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:18:08,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:18:08,756 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:18:08,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-16 10:18:09,185 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:18:09,186 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:18:09,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 1805 conjuncts, 256 conjunts are in the unsatisfiable core [2022-10-16 10:18:09,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:18:31,868 INFO L134 CoverageAnalysis]: Checked inductivity of 32157 backedges. 0 proven. 32131 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-16 10:18:31,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:19:29,151 INFO L134 CoverageAnalysis]: Checked inductivity of 32157 backedges. 0 proven. 32131 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-16 10:19:29,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1402889027] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:19:29,152 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:19:29,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 257, 257] total 516 [2022-10-16 10:19:29,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169338551] [2022-10-16 10:19:29,152 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:19:29,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 516 states [2022-10-16 10:19:29,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:19:29,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 516 interpolants. [2022-10-16 10:19:29,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65806, Invalid=199934, Unknown=0, NotChecked=0, Total=265740 [2022-10-16 10:19:29,192 INFO L87 Difference]: Start difference. First operand 1035 states and 1175 transitions. Second operand has 516 states, 516 states have (on average 2.0717054263565893) internal successors, (1069), 516 states have internal predecessors, (1069), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)