/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/sanfoundry_02_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 10:04:59,106 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 10:04:59,108 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 10:04:59,171 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 10:04:59,232 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 10:04:59,233 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 10:04:59,234 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 10:04:59,237 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 10:04:59,269 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 10:04:59,269 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 10:04:59,270 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 10:04:59,270 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 10:04:59,271 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 10:04:59,271 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 10:04:59,272 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 10:04:59,272 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 10:04:59,272 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 10:04:59,273 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 10:04:59,273 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 10:04:59,273 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 10:04:59,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 10:04:59,273 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 10:04:59,274 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 10:04:59,274 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 10:04:59,274 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 10:04:59,274 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 10:04:59,274 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 10:04:59,275 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 10:04:59,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 10:04:59,275 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 10:04:59,275 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 10:04:59,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 10:04:59,276 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 10:04:59,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 10:04:59,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:04:59,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 10:04:59,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 10:04:59,277 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 10:04:59,277 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 10:04:59,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 10:04:59,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 10:04:59,278 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 10:04:59,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 10:04:59,658 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 10:04:59,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 10:04:59,662 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 10:04:59,663 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 10:04:59,664 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/sanfoundry_02_ground.i [2022-10-16 10:04:59,747 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f682b769/41e1773a7b55443bbc8c20ab6cbcc967/FLAG197db32eb [2022-10-16 10:05:00,307 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 10:05:00,308 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/sanfoundry_02_ground.i [2022-10-16 10:05:00,315 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f682b769/41e1773a7b55443bbc8c20ab6cbcc967/FLAG197db32eb [2022-10-16 10:05:00,674 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f682b769/41e1773a7b55443bbc8c20ab6cbcc967 [2022-10-16 10:05:00,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 10:05:00,688 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 10:05:00,693 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 10:05:00,693 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 10:05:00,697 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 10:05:00,698 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:05:00" (1/1) ... [2022-10-16 10:05:00,700 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23e95e81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:05:00, skipping insertion in model container [2022-10-16 10:05:00,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:05:00" (1/1) ... [2022-10-16 10:05:00,709 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 10:05:00,733 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 10:05:00,927 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/sanfoundry_02_ground.i[813,826] [2022-10-16 10:05:00,947 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:05:00,956 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 10:05:00,970 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/sanfoundry_02_ground.i[813,826] [2022-10-16 10:05:00,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:05:00,997 INFO L208 MainTranslator]: Completed translation [2022-10-16 10:05:00,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:05:00 WrapperNode [2022-10-16 10:05:00,998 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 10:05:00,999 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 10:05:00,999 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 10:05:00,999 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 10:05:01,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:05:00" (1/1) ... [2022-10-16 10:05:01,017 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:05:00" (1/1) ... [2022-10-16 10:05:01,042 INFO L138 Inliner]: procedures = 16, calls = 21, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 101 [2022-10-16 10:05:01,043 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 10:05:01,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 10:05:01,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 10:05:01,044 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 10:05:01,054 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:05:00" (1/1) ... [2022-10-16 10:05:01,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:05:00" (1/1) ... [2022-10-16 10:05:01,058 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:05:00" (1/1) ... [2022-10-16 10:05:01,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:05:00" (1/1) ... [2022-10-16 10:05:01,064 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:05:00" (1/1) ... [2022-10-16 10:05:01,069 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:05:00" (1/1) ... [2022-10-16 10:05:01,071 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:05:00" (1/1) ... [2022-10-16 10:05:01,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:05:00" (1/1) ... [2022-10-16 10:05:01,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 10:05:01,076 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 10:05:01,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 10:05:01,076 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 10:05:01,077 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:05:00" (1/1) ... [2022-10-16 10:05:01,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:05:01,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:05:01,113 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 10:05:01,132 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 10:05:01,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 10:05:01,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 10:05:01,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 10:05:01,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 10:05:01,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 10:05:01,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 10:05:01,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 10:05:01,203 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-16 10:05:01,204 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-16 10:05:01,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 10:05:01,312 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 10:05:01,314 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 10:05:01,628 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 10:05:01,655 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 10:05:01,656 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-16 10:05:01,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:05:01 BoogieIcfgContainer [2022-10-16 10:05:01,658 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 10:05:01,663 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 10:05:01,663 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 10:05:01,670 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 10:05:01,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:05:00" (1/3) ... [2022-10-16 10:05:01,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30df4407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:05:01, skipping insertion in model container [2022-10-16 10:05:01,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:05:00" (2/3) ... [2022-10-16 10:05:01,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30df4407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:05:01, skipping insertion in model container [2022-10-16 10:05:01,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:05:01" (3/3) ... [2022-10-16 10:05:01,677 INFO L112 eAbstractionObserver]: Analyzing ICFG sanfoundry_02_ground.i [2022-10-16 10:05:01,700 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 10:05:01,701 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-10-16 10:05:01,780 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 10:05:01,789 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;@5c02f897, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 10:05:01,789 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-10-16 10:05:01,794 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 35 states have (on average 1.6) internal successors, (56), 43 states have internal predecessors, (56), 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 10:05:01,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 10:05:01,801 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:05:01,802 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 10:05:01,803 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:05:01,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:05:01,809 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2022-10-16 10:05:01,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:05:01,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286317731] [2022-10-16 10:05:01,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:01,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:05:01,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:02,143 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 10:05:02,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:05:02,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286317731] [2022-10-16 10:05:02,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286317731] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:05:02,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:05:02,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:05:02,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349768380] [2022-10-16 10:05:02,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:05:02,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:05:02,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:05:02,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:05:02,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:05:02,191 INFO L87 Difference]: Start difference. First operand has 47 states, 35 states have (on average 1.6) internal successors, (56), 43 states have internal predecessors, (56), 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 10:05:02,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:05:02,275 INFO L93 Difference]: Finished difference Result 92 states and 120 transitions. [2022-10-16 10:05:02,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:05:02,278 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 10:05:02,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:05:02,286 INFO L225 Difference]: With dead ends: 92 [2022-10-16 10:05:02,286 INFO L226 Difference]: Without dead ends: 46 [2022-10-16 10:05:02,290 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 10:05:02,295 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 3 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:05:02,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 141 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:05:02,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-10-16 10:05:02,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-10-16 10:05:02,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 35 states have (on average 1.4285714285714286) internal successors, (50), 42 states have internal predecessors, (50), 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 10:05:02,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 54 transitions. [2022-10-16 10:05:02,345 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 54 transitions. Word has length 5 [2022-10-16 10:05:02,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:05:02,346 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 54 transitions. [2022-10-16 10:05:02,346 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 10:05:02,346 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 54 transitions. [2022-10-16 10:05:02,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 10:05:02,347 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:05:02,347 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-10-16 10:05:02,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 10:05:02,348 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:05:02,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:05:02,349 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2022-10-16 10:05:02,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:05:02,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24107875] [2022-10-16 10:05:02,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:02,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:05:02,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:02,482 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 10:05:02,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:05:02,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24107875] [2022-10-16 10:05:02,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24107875] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:05:02,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:05:02,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:05:02,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524591096] [2022-10-16 10:05:02,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:05:02,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:05:02,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:05:02,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:05:02,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:05:02,487 INFO L87 Difference]: Start difference. First operand 46 states and 54 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 10:05:02,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:05:02,532 INFO L93 Difference]: Finished difference Result 70 states and 82 transitions. [2022-10-16 10:05:02,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:05:02,533 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 10:05:02,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:05:02,534 INFO L225 Difference]: With dead ends: 70 [2022-10-16 10:05:02,535 INFO L226 Difference]: Without dead ends: 46 [2022-10-16 10:05:02,535 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 10:05:02,537 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 14 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:05:02,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 107 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:05:02,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-10-16 10:05:02,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-10-16 10:05:02,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 36 states have (on average 1.3888888888888888) internal successors, (50), 42 states have internal predecessors, (50), 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 10:05:02,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 54 transitions. [2022-10-16 10:05:02,547 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 54 transitions. Word has length 9 [2022-10-16 10:05:02,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:05:02,547 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 54 transitions. [2022-10-16 10:05:02,547 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 10:05:02,548 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 54 transitions. [2022-10-16 10:05:02,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 10:05:02,548 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:05:02,549 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-10-16 10:05:02,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 10:05:02,549 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:05:02,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:05:02,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2022-10-16 10:05:02,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:05:02,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618676371] [2022-10-16 10:05:02,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:02,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:05:02,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:02,718 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 10:05:02,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:05:02,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618676371] [2022-10-16 10:05:02,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618676371] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:05:02,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793778003] [2022-10-16 10:05:02,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:02,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:05:02,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:05:02,723 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 10:05:02,729 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 10:05:02,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:02,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:05:02,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:05:02,872 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 10:05:02,872 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:05:02,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1793778003] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:05:02,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:05:02,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 10:05:02,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898779539] [2022-10-16 10:05:02,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:05:02,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 10:05:02,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:05:02,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 10:05:02,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 10:05:02,876 INFO L87 Difference]: Start difference. First operand 46 states and 54 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 10:05:02,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:05:02,954 INFO L93 Difference]: Finished difference Result 53 states and 63 transitions. [2022-10-16 10:05:02,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:05:02,954 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 10:05:02,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:05:02,956 INFO L225 Difference]: With dead ends: 53 [2022-10-16 10:05:02,956 INFO L226 Difference]: Without dead ends: 52 [2022-10-16 10:05:02,957 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 10:05:02,959 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 36 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:05:02,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 132 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:05:02,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-10-16 10:05:02,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 42. [2022-10-16 10:05:02,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 33 states have (on average 1.393939393939394) internal successors, (46), 38 states have internal predecessors, (46), 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 10:05:02,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2022-10-16 10:05:02,969 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 10 [2022-10-16 10:05:02,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:05:02,970 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2022-10-16 10:05:02,970 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 10:05:02,970 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2022-10-16 10:05:02,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-16 10:05:02,971 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:05:02,971 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:05:03,002 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 10:05:03,186 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 10:05:03,187 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:05:03,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:05:03,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1465392069, now seen corresponding path program 1 times [2022-10-16 10:05:03,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:05:03,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664478295] [2022-10-16 10:05:03,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:03,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:05:03,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:03,283 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 10:05:03,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:05:03,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664478295] [2022-10-16 10:05:03,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664478295] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:05:03,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855531346] [2022-10-16 10:05:03,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:03,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:05:03,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:05:03,286 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 10:05:03,311 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 10:05:03,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:03,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:05:03,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:05:03,377 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 10:05:03,378 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:05:03,416 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 10:05:03,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855531346] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:05:03,417 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:05:03,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-16 10:05:03,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927681881] [2022-10-16 10:05:03,418 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:05:03,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 10:05:03,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:05:03,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 10:05:03,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-16 10:05:03,420 INFO L87 Difference]: Start difference. First operand 42 states and 50 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 10:05:03,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:05:03,511 INFO L93 Difference]: Finished difference Result 92 states and 111 transitions. [2022-10-16 10:05:03,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 10:05:03,512 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 14 [2022-10-16 10:05:03,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:05:03,513 INFO L225 Difference]: With dead ends: 92 [2022-10-16 10:05:03,513 INFO L226 Difference]: Without dead ends: 57 [2022-10-16 10:05:03,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:05:03,516 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 43 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:05:03,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 200 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:05:03,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-10-16 10:05:03,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 50. [2022-10-16 10:05:03,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 46 states have internal predecessors, (54), 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 10:05:03,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 58 transitions. [2022-10-16 10:05:03,526 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 58 transitions. Word has length 14 [2022-10-16 10:05:03,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:05:03,527 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 58 transitions. [2022-10-16 10:05:03,527 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 10:05:03,527 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 58 transitions. [2022-10-16 10:05:03,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 10:05:03,528 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:05:03,528 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:05:03,558 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 10:05:03,741 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 10:05:03,741 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:05:03,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:05:03,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1738655677, now seen corresponding path program 2 times [2022-10-16 10:05:03,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:05:03,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380024675] [2022-10-16 10:05:03,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:03,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:05:03,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:03,834 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 10:05:03,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:05:03,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380024675] [2022-10-16 10:05:03,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380024675] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:05:03,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:05:03,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:05:03,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775481873] [2022-10-16 10:05:03,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:05:03,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:05:03,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:05:03,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:05:03,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:05:03,838 INFO L87 Difference]: Start difference. First operand 50 states and 58 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 10:05:03,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:05:03,897 INFO L93 Difference]: Finished difference Result 57 states and 67 transitions. [2022-10-16 10:05:03,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:05:03,898 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 22 [2022-10-16 10:05:03,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:05:03,901 INFO L225 Difference]: With dead ends: 57 [2022-10-16 10:05:03,902 INFO L226 Difference]: Without dead ends: 55 [2022-10-16 10:05:03,902 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 10:05:03,903 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 6 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:05:03,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 114 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:05:03,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-10-16 10:05:03,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2022-10-16 10:05:03,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 46 states have (on average 1.326086956521739) internal successors, (61), 51 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 10:05:03,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 65 transitions. [2022-10-16 10:05:03,928 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 65 transitions. Word has length 22 [2022-10-16 10:05:03,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:05:03,929 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 65 transitions. [2022-10-16 10:05:03,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 10:05:03,929 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 65 transitions. [2022-10-16 10:05:03,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 10:05:03,930 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:05:03,930 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:05:03,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 10:05:03,933 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:05:03,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:05:03,933 INFO L85 PathProgramCache]: Analyzing trace with hash -122847629, now seen corresponding path program 1 times [2022-10-16 10:05:03,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:05:03,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144522951] [2022-10-16 10:05:03,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:03,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:05:03,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:04,062 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 10:05:04,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:05:04,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144522951] [2022-10-16 10:05:04,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144522951] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:05:04,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:05:04,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:05:04,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040652547] [2022-10-16 10:05:04,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:05:04,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:05:04,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:05:04,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:05:04,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:05:04,067 INFO L87 Difference]: Start difference. First operand 55 states and 65 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 10:05:04,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:05:04,104 INFO L93 Difference]: Finished difference Result 55 states and 65 transitions. [2022-10-16 10:05:04,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:05:04,105 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 27 [2022-10-16 10:05:04,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:05:04,109 INFO L225 Difference]: With dead ends: 55 [2022-10-16 10:05:04,109 INFO L226 Difference]: Without dead ends: 54 [2022-10-16 10:05:04,110 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 10:05:04,114 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 11 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:05:04,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 103 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:05:04,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-10-16 10:05:04,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2022-10-16 10:05:04,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 46 states have (on average 1.3043478260869565) internal successors, (60), 50 states have internal predecessors, (60), 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 10:05:04,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2022-10-16 10:05:04,131 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 27 [2022-10-16 10:05:04,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:05:04,131 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2022-10-16 10:05:04,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 10:05:04,131 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2022-10-16 10:05:04,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 10:05:04,132 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:05:04,133 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:05:04,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 10:05:04,133 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:05:04,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:05:04,134 INFO L85 PathProgramCache]: Analyzing trace with hash 486690878, now seen corresponding path program 1 times [2022-10-16 10:05:04,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:05:04,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897469576] [2022-10-16 10:05:04,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:04,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:05:04,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:04,267 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 10:05:04,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:05:04,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897469576] [2022-10-16 10:05:04,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897469576] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:05:04,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [373859233] [2022-10-16 10:05:04,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:04,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:05:04,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:05:04,269 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 10:05:04,279 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 10:05:04,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:04,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:05:04,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:05:04,394 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 10:05:04,394 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:05:04,484 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 10:05:04,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [373859233] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:05:04,485 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:05:04,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-10-16 10:05:04,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038218386] [2022-10-16 10:05:04,485 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:05:04,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 10:05:04,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:05:04,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 10:05:04,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-10-16 10:05:04,488 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 18 states have internal predecessors, (43), 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 10:05:04,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:05:04,641 INFO L93 Difference]: Finished difference Result 109 states and 132 transitions. [2022-10-16 10:05:04,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:05:04,642 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 18 states have internal predecessors, (43), 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 28 [2022-10-16 10:05:04,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:05:04,643 INFO L225 Difference]: With dead ends: 109 [2022-10-16 10:05:04,643 INFO L226 Difference]: Without dead ends: 70 [2022-10-16 10:05:04,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2022-10-16 10:05:04,645 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 45 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:05:04,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 250 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:05:04,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-10-16 10:05:04,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2022-10-16 10:05:04,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 62 states have (on average 1.2258064516129032) internal successors, (76), 66 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 10:05:04,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 80 transitions. [2022-10-16 10:05:04,654 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 80 transitions. Word has length 28 [2022-10-16 10:05:04,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:05:04,654 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 80 transitions. [2022-10-16 10:05:04,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 18 states have internal predecessors, (43), 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 10:05:04,654 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 80 transitions. [2022-10-16 10:05:04,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-16 10:05:04,656 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:05:04,656 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:05:04,691 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-10-16 10:05:04,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:05:04,872 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:05:04,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:05:04,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1593644110, now seen corresponding path program 2 times [2022-10-16 10:05:04,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:05:04,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813890722] [2022-10-16 10:05:04,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:04,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:05:04,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:05,256 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 10:05:05,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:05:05,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813890722] [2022-10-16 10:05:05,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813890722] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:05:05,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1064108263] [2022-10-16 10:05:05,258 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:05:05,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:05:05,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:05:05,260 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 10:05:05,274 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 10:05:05,349 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:05:05,349 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:05:05,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 10:05:05,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:05:05,470 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 10:05:05,470 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:05:05,743 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 10:05:05,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1064108263] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:05:05,743 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:05:05,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-10-16 10:05:05,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260422298] [2022-10-16 10:05:05,744 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:05:05,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-10-16 10:05:05,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:05:05,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-10-16 10:05:05,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 10:05:05,750 INFO L87 Difference]: Start difference. First operand 70 states and 80 transitions. Second operand has 34 states, 34 states have (on average 2.2058823529411766) internal successors, (75), 34 states have internal predecessors, (75), 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 10:05:06,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:05:06,120 INFO L93 Difference]: Finished difference Result 141 states and 168 transitions. [2022-10-16 10:05:06,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-16 10:05:06,120 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.2058823529411766) internal successors, (75), 34 states have internal predecessors, (75), 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 44 [2022-10-16 10:05:06,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:05:06,122 INFO L225 Difference]: With dead ends: 141 [2022-10-16 10:05:06,122 INFO L226 Difference]: Without dead ends: 102 [2022-10-16 10:05:06,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=659, Invalid=1597, Unknown=0, NotChecked=0, Total=2256 [2022-10-16 10:05:06,124 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 137 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:05:06,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 321 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:05:06,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-10-16 10:05:06,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2022-10-16 10:05:06,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 94 states have (on average 1.148936170212766) internal successors, (108), 98 states have internal predecessors, (108), 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 10:05:06,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 112 transitions. [2022-10-16 10:05:06,149 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 112 transitions. Word has length 44 [2022-10-16 10:05:06,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:05:06,151 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 112 transitions. [2022-10-16 10:05:06,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.2058823529411766) internal successors, (75), 34 states have internal predecessors, (75), 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 10:05:06,151 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 112 transitions. [2022-10-16 10:05:06,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-10-16 10:05:06,162 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:05:06,162 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:05:06,200 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 10:05:06,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:05:06,376 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:05:06,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:05:06,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1760836718, now seen corresponding path program 3 times [2022-10-16 10:05:06,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:05:06,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300718784] [2022-10-16 10:05:06,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:06,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:05:06,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:07,320 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 10:05:07,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:05:07,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300718784] [2022-10-16 10:05:07,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300718784] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:05:07,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648638906] [2022-10-16 10:05:07,322 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:05:07,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:05:07,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:05:07,324 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 10:05:07,344 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 10:05:07,392 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 10:05:07,393 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:05:07,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:05:07,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:05:07,511 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-10-16 10:05:07,511 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:05:07,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648638906] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:05:07,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:05:07,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [33] total 37 [2022-10-16 10:05:07,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326716757] [2022-10-16 10:05:07,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:05:07,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 10:05:07,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:05:07,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 10:05:07,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=298, Invalid=1034, Unknown=0, NotChecked=0, Total=1332 [2022-10-16 10:05:07,515 INFO L87 Difference]: Start difference. First operand 102 states and 112 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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 10:05:07,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:05:07,596 INFO L93 Difference]: Finished difference Result 102 states and 112 transitions. [2022-10-16 10:05:07,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:05:07,597 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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 76 [2022-10-16 10:05:07,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:05:07,598 INFO L225 Difference]: With dead ends: 102 [2022-10-16 10:05:07,598 INFO L226 Difference]: Without dead ends: 101 [2022-10-16 10:05:07,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=309, Invalid=1173, Unknown=0, NotChecked=0, Total=1482 [2022-10-16 10:05:07,600 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 56 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:05:07,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 123 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:05:07,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-10-16 10:05:07,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 96. [2022-10-16 10:05:07,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 89 states have (on average 1.1235955056179776) internal successors, (100), 92 states have internal predecessors, (100), 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 10:05:07,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 104 transitions. [2022-10-16 10:05:07,608 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 104 transitions. Word has length 76 [2022-10-16 10:05:07,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:05:07,609 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 104 transitions. [2022-10-16 10:05:07,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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 10:05:07,609 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 104 transitions. [2022-10-16 10:05:07,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-10-16 10:05:07,610 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:05:07,611 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:05:07,652 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 10:05:07,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:05:07,824 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:05:07,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:05:07,825 INFO L85 PathProgramCache]: Analyzing trace with hash -784203664, now seen corresponding path program 1 times [2022-10-16 10:05:07,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:05:07,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570626532] [2022-10-16 10:05:07,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:07,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:05:07,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:08,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 10:05:08,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:08,043 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-10-16 10:05:08,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:05:08,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570626532] [2022-10-16 10:05:08,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570626532] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:05:08,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1514130399] [2022-10-16 10:05:08,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:08,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:05:08,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:05:08,046 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 10:05:08,070 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 10:05:08,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:08,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 32 conjunts are in the unsatisfiable core [2022-10-16 10:05:08,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:05:08,615 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:05:08,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:05:09,577 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:05:09,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1514130399] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:05:09,578 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:05:09,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 33, 33] total 66 [2022-10-16 10:05:09,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949682267] [2022-10-16 10:05:09,578 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:05:09,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-10-16 10:05:09,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:05:09,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-10-16 10:05:09,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1090, Invalid=3200, Unknown=0, NotChecked=0, Total=4290 [2022-10-16 10:05:09,583 INFO L87 Difference]: Start difference. First operand 96 states and 104 transitions. Second operand has 66 states, 66 states have (on average 2.4242424242424243) internal successors, (160), 66 states have internal predecessors, (160), 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 10:05:10,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:05:10,566 INFO L93 Difference]: Finished difference Result 204 states and 240 transitions. [2022-10-16 10:05:10,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-10-16 10:05:10,567 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 2.4242424242424243) internal successors, (160), 66 states have internal predecessors, (160), 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 82 [2022-10-16 10:05:10,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:05:10,568 INFO L225 Difference]: With dead ends: 204 [2022-10-16 10:05:10,568 INFO L226 Difference]: Without dead ends: 171 [2022-10-16 10:05:10,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2106 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=2595, Invalid=6717, Unknown=0, NotChecked=0, Total=9312 [2022-10-16 10:05:10,574 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 343 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:05:10,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 240 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:05:10,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2022-10-16 10:05:10,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 166. [2022-10-16 10:05:10,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 159 states have (on average 1.0817610062893082) internal successors, (172), 162 states have internal predecessors, (172), 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 10:05:10,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 176 transitions. [2022-10-16 10:05:10,601 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 176 transitions. Word has length 82 [2022-10-16 10:05:10,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:05:10,601 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 176 transitions. [2022-10-16 10:05:10,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 2.4242424242424243) internal successors, (160), 66 states have internal predecessors, (160), 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 10:05:10,602 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 176 transitions. [2022-10-16 10:05:10,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-10-16 10:05:10,605 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:05:10,605 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:05:10,641 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 10:05:10,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:05:10,819 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:05:10,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:05:10,821 INFO L85 PathProgramCache]: Analyzing trace with hash -890137600, now seen corresponding path program 2 times [2022-10-16 10:05:10,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:05:10,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387377415] [2022-10-16 10:05:10,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:10,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:05:10,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:11,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 10:05:11,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:11,028 INFO L134 CoverageAnalysis]: Checked inductivity of 1898 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1898 trivial. 0 not checked. [2022-10-16 10:05:11,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:05:11,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387377415] [2022-10-16 10:05:11,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387377415] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:05:11,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:05:11,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:05:11,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781309900] [2022-10-16 10:05:11,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:05:11,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:05:11,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:05:11,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:05:11,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:05:11,031 INFO L87 Difference]: Start difference. First operand 166 states and 176 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 10:05:11,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:05:11,071 INFO L93 Difference]: Finished difference Result 197 states and 212 transitions. [2022-10-16 10:05:11,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:05:11,071 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 151 [2022-10-16 10:05:11,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:05:11,073 INFO L225 Difference]: With dead ends: 197 [2022-10-16 10:05:11,073 INFO L226 Difference]: Without dead ends: 181 [2022-10-16 10:05:11,074 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 10:05:11,074 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 11 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:05:11,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 114 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:05:11,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-10-16 10:05:11,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 172. [2022-10-16 10:05:11,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 164 states have (on average 1.079268292682927) internal successors, (177), 167 states have internal predecessors, (177), 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 10:05:11,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 183 transitions. [2022-10-16 10:05:11,085 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 183 transitions. Word has length 151 [2022-10-16 10:05:11,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:05:11,086 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 183 transitions. [2022-10-16 10:05:11,086 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 10:05:11,086 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 183 transitions. [2022-10-16 10:05:11,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-10-16 10:05:11,088 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:05:11,088 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 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 10:05:11,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 10:05:11,089 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:05:11,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:05:11,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1118608929, now seen corresponding path program 1 times [2022-10-16 10:05:11,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:05:11,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816713235] [2022-10-16 10:05:11,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:11,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:05:11,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:11,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 10:05:11,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:11,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-10-16 10:05:11,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:11,240 INFO L134 CoverageAnalysis]: Checked inductivity of 1907 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1903 trivial. 0 not checked. [2022-10-16 10:05:11,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:05:11,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816713235] [2022-10-16 10:05:11,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816713235] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:05:11,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:05:11,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:05:11,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723108262] [2022-10-16 10:05:11,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:05:11,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:05:11,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:05:11,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:05:11,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:05:11,242 INFO L87 Difference]: Start difference. First operand 172 states and 183 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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 10:05:11,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:05:11,269 INFO L93 Difference]: Finished difference Result 173 states and 184 transitions. [2022-10-16 10:05:11,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:05:11,270 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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) Word has length 161 [2022-10-16 10:05:11,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:05:11,272 INFO L225 Difference]: With dead ends: 173 [2022-10-16 10:05:11,272 INFO L226 Difference]: Without dead ends: 172 [2022-10-16 10:05:11,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:05:11,273 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 13 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:05:11,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 97 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:05:11,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-10-16 10:05:11,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 171. [2022-10-16 10:05:11,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 164 states have (on average 1.0731707317073171) internal successors, (176), 166 states have internal predecessors, (176), 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 10:05:11,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 182 transitions. [2022-10-16 10:05:11,282 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 182 transitions. Word has length 161 [2022-10-16 10:05:11,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:05:11,282 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 182 transitions. [2022-10-16 10:05:11,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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 10:05:11,282 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 182 transitions. [2022-10-16 10:05:11,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-10-16 10:05:11,284 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:05:11,284 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:05:11,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 10:05:11,285 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:05:11,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:05:11,285 INFO L85 PathProgramCache]: Analyzing trace with hash -317138330, now seen corresponding path program 1 times [2022-10-16 10:05:11,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:05:11,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174146012] [2022-10-16 10:05:11,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:11,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:05:11,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:14,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-16 10:05:14,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:14,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-10-16 10:05:14,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:14,315 INFO L134 CoverageAnalysis]: Checked inductivity of 1908 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-10-16 10:05:14,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:05:14,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174146012] [2022-10-16 10:05:14,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174146012] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:05:14,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105078568] [2022-10-16 10:05:14,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:14,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:05:14,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:05:14,322 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 10:05:14,341 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 10:05:14,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:14,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 64 conjunts are in the unsatisfiable core [2022-10-16 10:05:14,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:05:14,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1908 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-10-16 10:05:14,748 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:05:18,293 INFO L134 CoverageAnalysis]: Checked inductivity of 1908 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-10-16 10:05:18,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105078568] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:05:18,294 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:05:18,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2022-10-16 10:05:18,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269553544] [2022-10-16 10:05:18,294 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:05:18,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-10-16 10:05:18,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:05:18,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-10-16 10:05:18,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2022-10-16 10:05:18,306 INFO L87 Difference]: Start difference. First operand 171 states and 182 transitions. Second operand has 130 states, 130 states have (on average 2.1538461538461537) internal successors, (280), 130 states have internal predecessors, (280), 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 10:05:21,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:05:21,417 INFO L93 Difference]: Finished difference Result 343 states and 396 transitions. [2022-10-16 10:05:21,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-10-16 10:05:21,418 INFO L78 Accepts]: Start accepts. Automaton has has 130 states, 130 states have (on average 2.1538461538461537) internal successors, (280), 130 states have internal predecessors, (280), 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 162 [2022-10-16 10:05:21,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:05:21,420 INFO L225 Difference]: With dead ends: 343 [2022-10-16 10:05:21,420 INFO L226 Difference]: Without dead ends: 299 [2022-10-16 10:05:21,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8087 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=10307, Invalid=26365, Unknown=0, NotChecked=0, Total=36672 [2022-10-16 10:05:21,430 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 657 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:05:21,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 299 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 10:05:21,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2022-10-16 10:05:21,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 299. [2022-10-16 10:05:21,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 292 states have (on average 1.0410958904109588) internal successors, (304), 294 states have internal predecessors, (304), 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 10:05:21,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 310 transitions. [2022-10-16 10:05:21,443 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 310 transitions. Word has length 162 [2022-10-16 10:05:21,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:05:21,444 INFO L495 AbstractCegarLoop]: Abstraction has 299 states and 310 transitions. [2022-10-16 10:05:21,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 2.1538461538461537) internal successors, (280), 130 states have internal predecessors, (280), 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 10:05:21,445 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 310 transitions. [2022-10-16 10:05:21,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-10-16 10:05:21,449 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:05:21,449 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:05:21,482 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 10:05:21,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:05:21,665 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:05:21,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:05:21,666 INFO L85 PathProgramCache]: Analyzing trace with hash 728832742, now seen corresponding path program 2 times [2022-10-16 10:05:21,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:05:21,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141553490] [2022-10-16 10:05:21,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:21,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:05:21,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:31,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-10-16 10:05:31,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:31,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2022-10-16 10:05:31,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:31,949 INFO L134 CoverageAnalysis]: Checked inductivity of 7892 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-10-16 10:05:31,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:05:31,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141553490] [2022-10-16 10:05:31,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141553490] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:05:31,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112270565] [2022-10-16 10:05:31,949 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:05:31,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:05:31,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:05:31,951 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 10:05:31,968 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 10:05:32,178 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:05:32,179 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:05:32,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 935 conjuncts, 128 conjunts are in the unsatisfiable core [2022-10-16 10:05:32,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:05:32,607 INFO L134 CoverageAnalysis]: Checked inductivity of 7892 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-10-16 10:05:32,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:05:46,536 INFO L134 CoverageAnalysis]: Checked inductivity of 7892 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-10-16 10:05:46,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112270565] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:05:46,537 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:05:46,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [129, 129, 129] total 258 [2022-10-16 10:05:46,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125718798] [2022-10-16 10:05:46,538 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:05:46,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 258 states [2022-10-16 10:05:46,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:05:46,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 258 interpolants. [2022-10-16 10:05:46,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16770, Invalid=49536, Unknown=0, NotChecked=0, Total=66306 [2022-10-16 10:05:46,583 INFO L87 Difference]: Start difference. First operand 299 states and 310 transitions. Second operand has 258 states, 258 states have (on average 2.0775193798449614) internal successors, (536), 258 states have internal predecessors, (536), 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 10:05:59,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:05:59,743 INFO L93 Difference]: Finished difference Result 599 states and 684 transitions. [2022-10-16 10:05:59,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 255 states. [2022-10-16 10:05:59,744 INFO L78 Accepts]: Start accepts. Automaton has has 258 states, 258 states have (on average 2.0775193798449614) internal successors, (536), 258 states have internal predecessors, (536), 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 290 [2022-10-16 10:05:59,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:05:59,746 INFO L225 Difference]: With dead ends: 599 [2022-10-16 10:05:59,747 INFO L226 Difference]: Without dead ends: 555 [2022-10-16 10:05:59,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 837 GetRequests, 455 SyntacticMatches, 0 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32567 ImplicationChecksByTransitivity, 28.1s TimeCoverageRelationStatistics Valid=41091, Invalid=105981, Unknown=0, NotChecked=0, Total=147072 [2022-10-16 10:05:59,758 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 1533 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 855 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1533 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 10:05:59,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1533 Valid, 307 Invalid, 937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 855 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 10:05:59,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2022-10-16 10:05:59,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2022-10-16 10:05:59,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 548 states have (on average 1.0218978102189782) internal successors, (560), 550 states have internal predecessors, (560), 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 10:05:59,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 566 transitions. [2022-10-16 10:05:59,779 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 566 transitions. Word has length 290 [2022-10-16 10:05:59,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:05:59,780 INFO L495 AbstractCegarLoop]: Abstraction has 555 states and 566 transitions. [2022-10-16 10:05:59,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 258 states, 258 states have (on average 2.0775193798449614) internal successors, (536), 258 states have internal predecessors, (536), 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 10:05:59,781 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 566 transitions. [2022-10-16 10:05:59,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2022-10-16 10:05:59,792 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:05:59,792 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 127, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:05:59,828 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 10:06:00,006 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,SelfDestructingSolverStorable13 [2022-10-16 10:06:00,007 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:06:00,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:06:00,008 INFO L85 PathProgramCache]: Analyzing trace with hash 2055838694, now seen corresponding path program 3 times [2022-10-16 10:06:00,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:06:00,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077575033] [2022-10-16 10:06:00,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:06:00,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:06:00,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:06:37,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-10-16 10:06:37,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:06:37,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 537 [2022-10-16 10:06:37,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:06:37,863 INFO L134 CoverageAnalysis]: Checked inductivity of 32148 backedges. 0 proven. 32131 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-10-16 10:06:37,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:06:37,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077575033] [2022-10-16 10:06:37,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077575033] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:06:37,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31318030] [2022-10-16 10:06:37,864 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:06:37,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:06:37,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:06:37,865 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 10:06:37,866 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 10:06:38,059 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 10:06:38,059 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:06:38,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:06:38,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:06:38,337 INFO L134 CoverageAnalysis]: Checked inductivity of 32148 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 32142 trivial. 0 not checked. [2022-10-16 10:06:38,337 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:06:38,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [31318030] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:06:38,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:06:38,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [257] total 259 [2022-10-16 10:06:38,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570240126] [2022-10-16 10:06:38,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:06:38,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:06:38,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:06:38,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:06:38,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16644, Invalid=50178, Unknown=0, NotChecked=0, Total=66822 [2022-10-16 10:06:38,348 INFO L87 Difference]: Start difference. First operand 555 states and 566 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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 10:06:38,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:06:38,482 INFO L93 Difference]: Finished difference Result 555 states and 566 transitions. [2022-10-16 10:06:38,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:06:38,483 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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) Word has length 546 [2022-10-16 10:06:38,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:06:38,489 INFO L225 Difference]: With dead ends: 555 [2022-10-16 10:06:38,489 INFO L226 Difference]: Without dead ends: 554 [2022-10-16 10:06:38,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 807 GetRequests, 549 SyntacticMatches, 0 SemanticMatches, 258 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16508 ImplicationChecksByTransitivity, 20.3s TimeCoverageRelationStatistics Valid=16648, Invalid=50692, Unknown=0, NotChecked=0, Total=67340 [2022-10-16 10:06:38,500 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 11 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:06:38,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 95 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:06:38,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2022-10-16 10:06:38,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 549. [2022-10-16 10:06:38,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 544 states have (on average 1.0202205882352942) internal successors, (555), 545 states have internal predecessors, (555), 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 10:06:38,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 559 transitions. [2022-10-16 10:06:38,524 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 559 transitions. Word has length 546 [2022-10-16 10:06:38,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:06:38,526 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 559 transitions. [2022-10-16 10:06:38,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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 10:06:38,526 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 559 transitions. [2022-10-16 10:06:38,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2022-10-16 10:06:38,540 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:06:38,540 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 127, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:06:38,577 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 10:06:38,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 10:06:38,742 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 10:06:38,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:06:38,743 INFO L85 PathProgramCache]: Analyzing trace with hash -489704429, now seen corresponding path program 1 times [2022-10-16 10:06:38,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:06:38,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439035779] [2022-10-16 10:06:38,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:06:38,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:06:38,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:06:39,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-10-16 10:06:39,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:06:39,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2022-10-16 10:06:39,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:06:39,400 INFO L134 CoverageAnalysis]: Checked inductivity of 32143 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 32142 trivial. 0 not checked. [2022-10-16 10:06:39,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:06:39,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439035779] [2022-10-16 10:06:39,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439035779] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:06:39,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215225714] [2022-10-16 10:06:39,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:06:39,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:06:39,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:06:39,402 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 10:06:39,428 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 10:06:39,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:06:39,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 1771 conjuncts, 256 conjunts are in the unsatisfiable core [2022-10-16 10:06:39,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:07:01,023 INFO L134 CoverageAnalysis]: Checked inductivity of 32143 backedges. 0 proven. 32131 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 10:07:01,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:07:57,340 INFO L134 CoverageAnalysis]: Checked inductivity of 32143 backedges. 0 proven. 32131 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 10:07:57,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [215225714] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:07:57,340 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:07:57,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 257, 257] total 515 [2022-10-16 10:07:57,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577487530] [2022-10-16 10:07:57,341 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:07:57,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 515 states [2022-10-16 10:07:57,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:07:57,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 515 interpolants. [2022-10-16 10:07:57,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65799, Invalid=198911, Unknown=0, NotChecked=0, Total=264710 [2022-10-16 10:07:57,381 INFO L87 Difference]: Start difference. First operand 549 states and 559 transitions. Second operand has 515 states, 515 states have (on average 2.079611650485437) internal successors, (1071), 515 states have internal predecessors, (1071), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)