/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/loops/invert_string-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 14:37:12,046 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 14:37:12,050 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 14:37:12,111 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 14:37:12,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 14:37:12,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 14:37:12,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 14:37:12,212 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 14:37:12,264 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 14:37:12,265 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 14:37:12,265 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 14:37:12,266 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 14:37:12,268 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 14:37:12,268 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 14:37:12,271 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 14:37:12,271 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 14:37:12,271 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 14:37:12,271 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 14:37:12,272 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 14:37:12,273 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 14:37:12,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 14:37:12,273 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 14:37:12,273 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 14:37:12,273 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 14:37:12,274 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 14:37:12,274 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 14:37:12,274 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 14:37:12,274 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 14:37:12,274 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 14:37:12,274 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 14:37:12,275 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 14:37:12,275 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 14:37:12,275 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 14:37:12,275 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 14:37:12,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:37:12,276 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 14:37:12,276 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 14:37:12,276 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 14:37:12,276 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 14:37:12,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 14:37:12,277 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 14:37:12,277 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 14:37:12,741 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 14:37:12,769 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 14:37:12,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 14:37:12,774 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 14:37:12,774 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 14:37:12,776 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/invert_string-1.c [2022-10-16 14:37:12,867 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e5d06f49/266fff31ad02404f9d05af0efb642203/FLAG6d63ca20d [2022-10-16 14:37:13,485 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 14:37:13,486 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/invert_string-1.c [2022-10-16 14:37:13,493 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e5d06f49/266fff31ad02404f9d05af0efb642203/FLAG6d63ca20d [2022-10-16 14:37:13,855 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e5d06f49/266fff31ad02404f9d05af0efb642203 [2022-10-16 14:37:13,858 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 14:37:13,864 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 14:37:13,865 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 14:37:13,866 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 14:37:13,870 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 14:37:13,871 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:37:13" (1/1) ... [2022-10-16 14:37:13,874 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@640f697a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:13, skipping insertion in model container [2022-10-16 14:37:13,874 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:37:13" (1/1) ... [2022-10-16 14:37:13,887 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 14:37:13,907 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 14:37:14,061 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/loops/invert_string-1.c[352,365] [2022-10-16 14:37:14,089 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:37:14,098 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 14:37:14,111 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/loops/invert_string-1.c[352,365] [2022-10-16 14:37:14,121 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:37:14,136 INFO L208 MainTranslator]: Completed translation [2022-10-16 14:37:14,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:14 WrapperNode [2022-10-16 14:37:14,137 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 14:37:14,139 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 14:37:14,139 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 14:37:14,139 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 14:37:14,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:14" (1/1) ... [2022-10-16 14:37:14,156 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:14" (1/1) ... [2022-10-16 14:37:14,182 INFO L138 Inliner]: procedures = 15, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 90 [2022-10-16 14:37:14,183 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 14:37:14,184 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 14:37:14,184 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 14:37:14,184 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 14:37:14,195 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:14" (1/1) ... [2022-10-16 14:37:14,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:14" (1/1) ... [2022-10-16 14:37:14,198 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:14" (1/1) ... [2022-10-16 14:37:14,199 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:14" (1/1) ... [2022-10-16 14:37:14,205 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:14" (1/1) ... [2022-10-16 14:37:14,214 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:14" (1/1) ... [2022-10-16 14:37:14,215 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:14" (1/1) ... [2022-10-16 14:37:14,216 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:14" (1/1) ... [2022-10-16 14:37:14,219 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 14:37:14,220 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 14:37:14,221 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 14:37:14,221 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 14:37:14,222 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:14" (1/1) ... [2022-10-16 14:37:14,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:37:14,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:14,259 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 14:37:14,275 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 14:37:14,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 14:37:14,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 14:37:14,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 14:37:14,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 14:37:14,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 14:37:14,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 14:37:14,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 14:37:14,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 14:37:14,442 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 14:37:14,444 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 14:37:14,674 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 14:37:14,683 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 14:37:14,684 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-16 14:37:14,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:37:14 BoogieIcfgContainer [2022-10-16 14:37:14,686 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 14:37:14,689 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 14:37:14,689 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 14:37:14,693 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 14:37:14,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:37:13" (1/3) ... [2022-10-16 14:37:14,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3330a0b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:37:14, skipping insertion in model container [2022-10-16 14:37:14,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:14" (2/3) ... [2022-10-16 14:37:14,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3330a0b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:37:14, skipping insertion in model container [2022-10-16 14:37:14,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:37:14" (3/3) ... [2022-10-16 14:37:14,697 INFO L112 eAbstractionObserver]: Analyzing ICFG invert_string-1.c [2022-10-16 14:37:14,719 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 14:37:14,719 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-10-16 14:37:14,784 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 14:37:14,834 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;@15370992, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 14:37:14,838 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-10-16 14:37:14,863 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 32 states have (on average 1.75) internal successors, (56), 48 states have internal predecessors, (56), 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 14:37:14,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 14:37:14,880 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:14,881 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 14:37:14,881 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:37:14,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:14,889 INFO L85 PathProgramCache]: Analyzing trace with hash 889509129, now seen corresponding path program 1 times [2022-10-16 14:37:14,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:14,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994198385] [2022-10-16 14:37:14,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:14,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:15,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:15,090 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 14:37:15,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:15,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994198385] [2022-10-16 14:37:15,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994198385] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:37:15,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:37:15,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:37:15,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474516769] [2022-10-16 14:37:15,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:37:15,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 14:37:15,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:15,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 14:37:15,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 14:37:15,143 INFO L87 Difference]: Start difference. First operand has 49 states, 32 states have (on average 1.75) internal successors, (56), 48 states have internal predecessors, (56), 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) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 14:37:15,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:15,167 INFO L93 Difference]: Finished difference Result 95 states and 108 transitions. [2022-10-16 14:37:15,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 14:37:15,170 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2022-10-16 14:37:15,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:15,180 INFO L225 Difference]: With dead ends: 95 [2022-10-16 14:37:15,181 INFO L226 Difference]: Without dead ends: 44 [2022-10-16 14:37:15,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 14:37:15,190 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:15,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:37:15,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-10-16 14:37:15,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-10-16 14:37:15,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 43 states have internal predecessors, (46), 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 14:37:15,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 46 transitions. [2022-10-16 14:37:15,236 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 46 transitions. Word has length 6 [2022-10-16 14:37:15,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:15,237 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 46 transitions. [2022-10-16 14:37:15,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 14:37:15,237 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions. [2022-10-16 14:37:15,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 14:37:15,238 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:15,238 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 14:37:15,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:37:15,241 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:37:15,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:15,243 INFO L85 PathProgramCache]: Analyzing trace with hash 889568401, now seen corresponding path program 1 times [2022-10-16 14:37:15,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:15,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398277379] [2022-10-16 14:37:15,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:15,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:15,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:15,439 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 14:37:15,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:15,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398277379] [2022-10-16 14:37:15,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398277379] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:37:15,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:37:15,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:37:15,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543427046] [2022-10-16 14:37:15,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:37:15,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:37:15,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:15,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:37:15,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:37:15,444 INFO L87 Difference]: Start difference. First operand 44 states and 46 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 14:37:15,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:15,548 INFO L93 Difference]: Finished difference Result 93 states and 100 transitions. [2022-10-16 14:37:15,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:37:15,549 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2022-10-16 14:37:15,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:15,551 INFO L225 Difference]: With dead ends: 93 [2022-10-16 14:37:15,551 INFO L226 Difference]: Without dead ends: 59 [2022-10-16 14:37:15,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:37:15,554 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 57 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:15,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 49 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:37:15,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-10-16 14:37:15,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 42. [2022-10-16 14:37:15,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 29 states have (on average 1.5172413793103448) internal successors, (44), 41 states have internal predecessors, (44), 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 14:37:15,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2022-10-16 14:37:15,566 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 6 [2022-10-16 14:37:15,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:15,566 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2022-10-16 14:37:15,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 14:37:15,567 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2022-10-16 14:37:15,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 14:37:15,568 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:15,568 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:15,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 14:37:15,568 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:37:15,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:15,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1806818349, now seen corresponding path program 1 times [2022-10-16 14:37:15,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:15,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998892510] [2022-10-16 14:37:15,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:15,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:15,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:15,741 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 14:37:15,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:15,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998892510] [2022-10-16 14:37:15,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998892510] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:37:15,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:37:15,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:37:15,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001074946] [2022-10-16 14:37:15,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:37:15,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:37:15,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:15,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:37:15,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:37:15,745 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 14:37:15,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:15,805 INFO L93 Difference]: Finished difference Result 59 states and 61 transitions. [2022-10-16 14:37:15,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:37:15,805 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2022-10-16 14:37:15,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:15,807 INFO L225 Difference]: With dead ends: 59 [2022-10-16 14:37:15,807 INFO L226 Difference]: Without dead ends: 57 [2022-10-16 14:37:15,808 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 14:37:15,810 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 14 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:15,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 99 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:37:15,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-10-16 14:37:15,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 45. [2022-10-16 14:37:15,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 32 states have (on average 1.46875) internal successors, (47), 44 states have internal predecessors, (47), 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 14:37:15,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 47 transitions. [2022-10-16 14:37:15,821 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 47 transitions. Word has length 7 [2022-10-16 14:37:15,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:15,821 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 47 transitions. [2022-10-16 14:37:15,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 14:37:15,822 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 47 transitions. [2022-10-16 14:37:15,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 14:37:15,822 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:15,823 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:15,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 14:37:15,823 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:37:15,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:15,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1899633323, now seen corresponding path program 1 times [2022-10-16 14:37:15,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:15,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475143750] [2022-10-16 14:37:15,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:15,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:15,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:15,988 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 14:37:15,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:15,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475143750] [2022-10-16 14:37:15,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475143750] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:15,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978027900] [2022-10-16 14:37:15,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:15,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:15,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:15,995 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 14:37:16,000 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 14:37:16,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:16,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:37:16,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:16,140 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:37:16,141 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:37:16,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978027900] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:37:16,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:37:16,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2022-10-16 14:37:16,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173321389] [2022-10-16 14:37:16,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:37:16,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:37:16,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:16,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:37:16,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:37:16,145 INFO L87 Difference]: Start difference. First operand 45 states and 47 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 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 14:37:16,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:16,230 INFO L93 Difference]: Finished difference Result 56 states and 59 transitions. [2022-10-16 14:37:16,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:37:16,231 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 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 14:37:16,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:16,233 INFO L225 Difference]: With dead ends: 56 [2022-10-16 14:37:16,233 INFO L226 Difference]: Without dead ends: 53 [2022-10-16 14:37:16,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:37:16,236 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 78 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:16,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 50 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:37:16,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-10-16 14:37:16,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 42. [2022-10-16 14:37:16,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 32 states have (on average 1.375) internal successors, (44), 41 states have internal predecessors, (44), 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 14:37:16,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2022-10-16 14:37:16,246 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 10 [2022-10-16 14:37:16,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:16,246 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2022-10-16 14:37:16,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 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 14:37:16,247 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2022-10-16 14:37:16,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 14:37:16,248 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:16,248 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:16,285 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 14:37:16,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:16,462 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:37:16,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:16,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1240910825, now seen corresponding path program 1 times [2022-10-16 14:37:16,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:16,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851392517] [2022-10-16 14:37:16,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:16,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:16,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:16,574 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:37:16,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:16,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851392517] [2022-10-16 14:37:16,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851392517] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:16,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1683268611] [2022-10-16 14:37:16,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:16,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:16,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:16,577 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 14:37:16,589 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 14:37:16,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:16,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:37:16,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:16,675 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:37:16,676 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:37:16,726 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:37:16,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1683268611] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:37:16,727 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:37:16,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 14:37:16,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204736973] [2022-10-16 14:37:16,728 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:37:16,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 14:37:16,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:16,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 14:37:16,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:37:16,730 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 12 states have internal predecessors, (24), 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 14:37:16,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:16,879 INFO L93 Difference]: Finished difference Result 82 states and 89 transitions. [2022-10-16 14:37:16,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 14:37:16,879 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-16 14:37:16,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:16,882 INFO L225 Difference]: With dead ends: 82 [2022-10-16 14:37:16,882 INFO L226 Difference]: Without dead ends: 81 [2022-10-16 14:37:16,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-16 14:37:16,885 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 62 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:16,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 147 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:37:16,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-10-16 14:37:16,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 53. [2022-10-16 14:37:16,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 43 states have (on average 1.3953488372093024) internal successors, (60), 52 states have internal predecessors, (60), 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 14:37:16,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 60 transitions. [2022-10-16 14:37:16,896 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 60 transitions. Word has length 11 [2022-10-16 14:37:16,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:16,897 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 60 transitions. [2022-10-16 14:37:16,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 12 states have internal predecessors, (24), 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 14:37:16,898 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2022-10-16 14:37:16,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 14:37:16,898 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:16,898 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:16,938 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 14:37:17,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:17,115 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:37:17,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:17,117 INFO L85 PathProgramCache]: Analyzing trace with hash -186470036, now seen corresponding path program 1 times [2022-10-16 14:37:17,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:17,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728589241] [2022-10-16 14:37:17,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:17,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:17,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:17,292 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 14:37:17,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:17,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728589241] [2022-10-16 14:37:17,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728589241] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:17,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090123654] [2022-10-16 14:37:17,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:17,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:17,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:17,295 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 14:37:17,302 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 14:37:17,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:17,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:37:17,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:17,392 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 14:37:17,392 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:37:17,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1090123654] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:37:17,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:37:17,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 14:37:17,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681711428] [2022-10-16 14:37:17,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:37:17,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:37:17,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:17,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:37:17,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:37:17,395 INFO L87 Difference]: Start difference. First operand 53 states and 60 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:17,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:17,456 INFO L93 Difference]: Finished difference Result 65 states and 72 transitions. [2022-10-16 14:37:17,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:37:17,456 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 14:37:17,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:17,458 INFO L225 Difference]: With dead ends: 65 [2022-10-16 14:37:17,458 INFO L226 Difference]: Without dead ends: 64 [2022-10-16 14:37:17,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 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 14:37:17,460 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 35 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:17,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 87 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:37:17,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-10-16 14:37:17,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 52. [2022-10-16 14:37:17,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 43 states have (on average 1.3255813953488371) internal successors, (57), 51 states have internal predecessors, (57), 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 14:37:17,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 57 transitions. [2022-10-16 14:37:17,470 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 57 transitions. Word has length 12 [2022-10-16 14:37:17,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:17,470 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 57 transitions. [2022-10-16 14:37:17,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:17,471 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 57 transitions. [2022-10-16 14:37:17,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 14:37:17,472 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:17,472 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:17,512 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 14:37:17,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:17,687 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:37:17,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:17,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1050137163, now seen corresponding path program 1 times [2022-10-16 14:37:17,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:17,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379006149] [2022-10-16 14:37:17,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:17,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:17,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:17,758 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:37:17,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:17,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379006149] [2022-10-16 14:37:17,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379006149] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:37:17,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:37:17,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:37:17,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565523190] [2022-10-16 14:37:17,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:37:17,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:37:17,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:17,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:37:17,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:37:17,762 INFO L87 Difference]: Start difference. First operand 52 states and 57 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 14:37:17,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:17,792 INFO L93 Difference]: Finished difference Result 59 states and 65 transitions. [2022-10-16 14:37:17,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:37:17,793 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 15 [2022-10-16 14:37:17,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:17,794 INFO L225 Difference]: With dead ends: 59 [2022-10-16 14:37:17,794 INFO L226 Difference]: Without dead ends: 57 [2022-10-16 14:37:17,795 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 14:37:17,796 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 5 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:17,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 97 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:37:17,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-10-16 14:37:17,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 55. [2022-10-16 14:37:17,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 46 states have (on average 1.326086956521739) internal successors, (61), 54 states have internal predecessors, (61), 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 14:37:17,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 61 transitions. [2022-10-16 14:37:17,805 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 61 transitions. Word has length 15 [2022-10-16 14:37:17,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:17,806 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 61 transitions. [2022-10-16 14:37:17,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 14:37:17,806 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 61 transitions. [2022-10-16 14:37:17,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 14:37:17,807 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:17,807 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:17,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 14:37:17,808 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:37:17,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:17,809 INFO L85 PathProgramCache]: Analyzing trace with hash 94514403, now seen corresponding path program 1 times [2022-10-16 14:37:17,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:17,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695099796] [2022-10-16 14:37:17,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:17,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:17,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:17,945 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 14:37:17,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:17,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695099796] [2022-10-16 14:37:17,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695099796] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:17,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [330563598] [2022-10-16 14:37:17,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:17,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:17,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:17,949 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 14:37:17,974 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 14:37:18,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:18,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:37:18,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:18,088 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:37:18,088 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:37:18,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [330563598] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:37:18,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:37:18,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2022-10-16 14:37:18,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883230491] [2022-10-16 14:37:18,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:37:18,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:37:18,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:18,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:37:18,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:37:18,091 INFO L87 Difference]: Start difference. First operand 55 states and 61 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:18,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:18,162 INFO L93 Difference]: Finished difference Result 56 states and 62 transitions. [2022-10-16 14:37:18,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:37:18,163 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-10-16 14:37:18,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:18,166 INFO L225 Difference]: With dead ends: 56 [2022-10-16 14:37:18,167 INFO L226 Difference]: Without dead ends: 55 [2022-10-16 14:37:18,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-10-16 14:37:18,169 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 57 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:18,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 39 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:37:18,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-10-16 14:37:18,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2022-10-16 14:37:18,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 46 states have (on average 1.3043478260869565) internal successors, (60), 53 states have internal predecessors, (60), 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 14:37:18,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 60 transitions. [2022-10-16 14:37:18,191 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 60 transitions. Word has length 18 [2022-10-16 14:37:18,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:18,193 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 60 transitions. [2022-10-16 14:37:18,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:18,194 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2022-10-16 14:37:18,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 14:37:18,195 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:18,196 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:18,232 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 14:37:18,410 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 14:37:18,411 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:37:18,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:18,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1365020721, now seen corresponding path program 1 times [2022-10-16 14:37:18,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:18,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917381655] [2022-10-16 14:37:18,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:18,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:18,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:18,462 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:37:18,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:18,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917381655] [2022-10-16 14:37:18,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917381655] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:37:18,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:37:18,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:37:18,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52980679] [2022-10-16 14:37:18,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:37:18,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:37:18,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:18,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:37:18,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:37:18,465 INFO L87 Difference]: Start difference. First operand 54 states and 60 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 14:37:18,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:18,499 INFO L93 Difference]: Finished difference Result 66 states and 72 transitions. [2022-10-16 14:37:18,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:37:18,499 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 19 [2022-10-16 14:37:18,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:18,500 INFO L225 Difference]: With dead ends: 66 [2022-10-16 14:37:18,501 INFO L226 Difference]: Without dead ends: 65 [2022-10-16 14:37:18,501 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 14:37:18,502 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 18 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:18,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 76 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:37:18,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-10-16 14:37:18,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 53. [2022-10-16 14:37:18,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 46 states have (on average 1.2826086956521738) internal successors, (59), 52 states have internal predecessors, (59), 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 14:37:18,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 59 transitions. [2022-10-16 14:37:18,509 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 59 transitions. Word has length 19 [2022-10-16 14:37:18,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:18,510 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 59 transitions. [2022-10-16 14:37:18,510 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 14:37:18,510 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 59 transitions. [2022-10-16 14:37:18,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 14:37:18,511 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:18,511 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:18,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 14:37:18,512 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:37:18,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:18,512 INFO L85 PathProgramCache]: Analyzing trace with hash -756202040, now seen corresponding path program 1 times [2022-10-16 14:37:18,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:18,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615678981] [2022-10-16 14:37:18,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:18,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:18,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:18,564 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:37:18,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:18,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615678981] [2022-10-16 14:37:18,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615678981] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:37:18,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:37:18,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:37:18,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732274475] [2022-10-16 14:37:18,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:37:18,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:37:18,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:18,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:37:18,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:37:18,567 INFO L87 Difference]: Start difference. First operand 53 states and 59 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 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 14:37:18,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:18,609 INFO L93 Difference]: Finished difference Result 79 states and 85 transitions. [2022-10-16 14:37:18,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:37:18,610 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 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 20 [2022-10-16 14:37:18,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:18,611 INFO L225 Difference]: With dead ends: 79 [2022-10-16 14:37:18,611 INFO L226 Difference]: Without dead ends: 65 [2022-10-16 14:37:18,611 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 14:37:18,612 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 61 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:18,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 37 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:37:18,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-10-16 14:37:18,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 53. [2022-10-16 14:37:18,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 52 states have internal predecessors, (58), 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 14:37:18,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 58 transitions. [2022-10-16 14:37:18,619 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 58 transitions. Word has length 20 [2022-10-16 14:37:18,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:18,620 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 58 transitions. [2022-10-16 14:37:18,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 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 14:37:18,620 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 58 transitions. [2022-10-16 14:37:18,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-16 14:37:18,621 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:18,621 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:18,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 14:37:18,622 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:37:18,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:18,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1819885295, now seen corresponding path program 1 times [2022-10-16 14:37:18,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:18,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847773010] [2022-10-16 14:37:18,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:18,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:18,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:18,706 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:37:18,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:18,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847773010] [2022-10-16 14:37:18,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847773010] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:18,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213442303] [2022-10-16 14:37:18,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:18,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:18,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:18,708 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 14:37:18,731 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 14:37:18,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:18,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 14:37:18,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:18,851 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:37:18,851 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:37:18,947 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:37:18,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213442303] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:37:18,947 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:37:18,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 12 [2022-10-16 14:37:18,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067214138] [2022-10-16 14:37:18,948 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:37:18,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 14:37:18,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:18,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 14:37:18,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:37:18,950 INFO L87 Difference]: Start difference. First operand 53 states and 58 transitions. Second operand has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 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 14:37:19,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:19,219 INFO L93 Difference]: Finished difference Result 128 states and 137 transitions. [2022-10-16 14:37:19,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-16 14:37:19,220 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 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 21 [2022-10-16 14:37:19,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:19,221 INFO L225 Difference]: With dead ends: 128 [2022-10-16 14:37:19,221 INFO L226 Difference]: Without dead ends: 106 [2022-10-16 14:37:19,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 28 SyntacticMatches, 7 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=431, Unknown=0, NotChecked=0, Total=552 [2022-10-16 14:37:19,222 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 123 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:19,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 147 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:37:19,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-10-16 14:37:19,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 69. [2022-10-16 14:37:19,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 62 states have (on average 1.2096774193548387) internal successors, (75), 68 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 14:37:19,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 75 transitions. [2022-10-16 14:37:19,240 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 75 transitions. Word has length 21 [2022-10-16 14:37:19,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:19,241 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 75 transitions. [2022-10-16 14:37:19,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 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 14:37:19,242 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 75 transitions. [2022-10-16 14:37:19,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 14:37:19,248 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:19,248 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1] [2022-10-16 14:37:19,275 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-10-16 14:37:19,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-16 14:37:19,460 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:37:19,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:19,461 INFO L85 PathProgramCache]: Analyzing trace with hash -868473059, now seen corresponding path program 2 times [2022-10-16 14:37:19,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:19,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844884969] [2022-10-16 14:37:19,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:19,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:19,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:19,625 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:37:19,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:19,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844884969] [2022-10-16 14:37:19,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844884969] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:19,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825117407] [2022-10-16 14:37:19,626 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:37:19,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:19,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:19,628 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 14:37:19,633 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 14:37:19,686 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 14:37:19,686 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:37:19,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:37:19,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:19,807 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 14:37:19,808 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:37:19,905 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 14:37:19,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825117407] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:37:19,905 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:37:19,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 14 [2022-10-16 14:37:19,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114061204] [2022-10-16 14:37:19,907 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:37:19,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 14:37:19,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:19,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 14:37:19,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-10-16 14:37:19,910 INFO L87 Difference]: Start difference. First operand 69 states and 75 transitions. Second operand has 15 states, 14 states have (on average 2.357142857142857) internal successors, (33), 15 states have internal predecessors, (33), 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 14:37:20,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:20,171 INFO L93 Difference]: Finished difference Result 103 states and 112 transitions. [2022-10-16 14:37:20,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 14:37:20,171 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.357142857142857) internal successors, (33), 15 states have internal predecessors, (33), 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 23 [2022-10-16 14:37:20,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:20,173 INFO L225 Difference]: With dead ends: 103 [2022-10-16 14:37:20,173 INFO L226 Difference]: Without dead ends: 102 [2022-10-16 14:37:20,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 40 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=207, Invalid=495, Unknown=0, NotChecked=0, Total=702 [2022-10-16 14:37:20,174 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 175 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:20,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 107 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:37:20,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-10-16 14:37:20,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 58. [2022-10-16 14:37:20,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 52 states have (on average 1.1923076923076923) internal successors, (62), 57 states have internal predecessors, (62), 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 14:37:20,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2022-10-16 14:37:20,182 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 23 [2022-10-16 14:37:20,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:20,182 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2022-10-16 14:37:20,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.357142857142857) internal successors, (33), 15 states have internal predecessors, (33), 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 14:37:20,182 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2022-10-16 14:37:20,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-16 14:37:20,183 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:20,183 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:20,224 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 14:37:20,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:20,399 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:37:20,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:20,400 INFO L85 PathProgramCache]: Analyzing trace with hash 63930911, now seen corresponding path program 1 times [2022-10-16 14:37:20,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:20,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594044197] [2022-10-16 14:37:20,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:20,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:20,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:20,488 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:37:20,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:20,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594044197] [2022-10-16 14:37:20,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594044197] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:20,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069924900] [2022-10-16 14:37:20,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:20,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:20,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:20,490 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 14:37:20,509 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 14:37:20,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:20,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:37:20,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:20,583 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:37:20,584 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:37:20,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069924900] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:37:20,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:37:20,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 14:37:20,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545434555] [2022-10-16 14:37:20,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:37:20,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:37:20,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:20,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:37:20,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:37:20,586 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 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 14:37:20,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:20,639 INFO L93 Difference]: Finished difference Result 58 states and 62 transitions. [2022-10-16 14:37:20,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:37:20,640 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 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 26 [2022-10-16 14:37:20,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:20,640 INFO L225 Difference]: With dead ends: 58 [2022-10-16 14:37:20,640 INFO L226 Difference]: Without dead ends: 57 [2022-10-16 14:37:20,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 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 14:37:20,642 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 12 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:20,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 97 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:37:20,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-10-16 14:37:20,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-10-16 14:37:20,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 52 states have (on average 1.1730769230769231) internal successors, (61), 56 states have internal predecessors, (61), 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 14:37:20,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2022-10-16 14:37:20,648 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 26 [2022-10-16 14:37:20,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:20,648 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2022-10-16 14:37:20,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 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 14:37:20,649 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2022-10-16 14:37:20,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-16 14:37:20,649 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:20,649 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:20,684 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 14:37:20,863 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 14:37:20,864 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:37:20,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:20,865 INFO L85 PathProgramCache]: Analyzing trace with hash -704470334, now seen corresponding path program 1 times [2022-10-16 14:37:20,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:20,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959490335] [2022-10-16 14:37:20,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:20,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:20,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:20,972 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:37:20,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:20,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959490335] [2022-10-16 14:37:20,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959490335] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:20,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975894081] [2022-10-16 14:37:20,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:20,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:20,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:20,975 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 14:37:20,984 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 14:37:21,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:21,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:37:21,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:21,082 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 14:37:21,083 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:37:21,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975894081] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:37:21,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:37:21,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2022-10-16 14:37:21,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331047844] [2022-10-16 14:37:21,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:37:21,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:37:21,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:21,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:37:21,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:37:21,085 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 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 14:37:21,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:21,135 INFO L93 Difference]: Finished difference Result 57 states and 61 transitions. [2022-10-16 14:37:21,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:37:21,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 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 26 [2022-10-16 14:37:21,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:21,139 INFO L225 Difference]: With dead ends: 57 [2022-10-16 14:37:21,139 INFO L226 Difference]: Without dead ends: 56 [2022-10-16 14:37:21,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-10-16 14:37:21,140 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 33 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:21,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 46 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:37:21,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-10-16 14:37:21,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2022-10-16 14:37:21,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 52 states have (on average 1.1538461538461537) internal successors, (60), 55 states have internal predecessors, (60), 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 14:37:21,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2022-10-16 14:37:21,147 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 26 [2022-10-16 14:37:21,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:21,147 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2022-10-16 14:37:21,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 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 14:37:21,148 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2022-10-16 14:37:21,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 14:37:21,151 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:21,151 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:21,193 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 14:37:21,366 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 14:37:21,366 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:37:21,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:21,367 INFO L85 PathProgramCache]: Analyzing trace with hash -363743763, now seen corresponding path program 1 times [2022-10-16 14:37:21,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:21,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050072261] [2022-10-16 14:37:21,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:21,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:21,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:21,486 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 14:37:21,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:21,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050072261] [2022-10-16 14:37:21,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050072261] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:37:21,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:37:21,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:37:21,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420005801] [2022-10-16 14:37:21,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:37:21,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:37:21,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:21,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:37:21,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:37:21,489 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 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 14:37:21,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:21,558 INFO L93 Difference]: Finished difference Result 62 states and 66 transitions. [2022-10-16 14:37:21,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:37:21,558 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 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 14:37:21,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:21,559 INFO L225 Difference]: With dead ends: 62 [2022-10-16 14:37:21,559 INFO L226 Difference]: Without dead ends: 61 [2022-10-16 14:37:21,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:37:21,562 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 23 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:21,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 58 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:37:21,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-10-16 14:37:21,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-10-16 14:37:21,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 57 states have (on average 1.1403508771929824) internal successors, (65), 60 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:37:21,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 65 transitions. [2022-10-16 14:37:21,574 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 65 transitions. Word has length 27 [2022-10-16 14:37:21,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:21,574 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 65 transitions. [2022-10-16 14:37:21,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 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 14:37:21,575 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 65 transitions. [2022-10-16 14:37:21,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 14:37:21,576 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:21,576 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:21,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 14:37:21,577 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:37:21,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:21,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1665401649, now seen corresponding path program 1 times [2022-10-16 14:37:21,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:21,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648658384] [2022-10-16 14:37:21,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:21,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:21,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:21,656 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 14:37:21,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:21,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648658384] [2022-10-16 14:37:21,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648658384] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:37:21,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:37:21,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:37:21,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005965193] [2022-10-16 14:37:21,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:37:21,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:37:21,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:21,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:37:21,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:37:21,659 INFO L87 Difference]: Start difference. First operand 61 states and 65 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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 14:37:21,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:21,695 INFO L93 Difference]: Finished difference Result 66 states and 70 transitions. [2022-10-16 14:37:21,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:37:21,695 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), 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 29 [2022-10-16 14:37:21,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:21,697 INFO L225 Difference]: With dead ends: 66 [2022-10-16 14:37:21,697 INFO L226 Difference]: Without dead ends: 64 [2022-10-16 14:37:21,698 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 14:37:21,698 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 6 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:21,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 72 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:37:21,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-10-16 14:37:21,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2022-10-16 14:37:21,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 60 states have (on average 1.1333333333333333) internal successors, (68), 63 states have internal predecessors, (68), 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 14:37:21,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2022-10-16 14:37:21,706 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 29 [2022-10-16 14:37:21,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:21,708 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2022-10-16 14:37:21,708 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), 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 14:37:21,708 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2022-10-16 14:37:21,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-16 14:37:21,709 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:21,709 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:21,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-16 14:37:21,709 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:37:21,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:21,710 INFO L85 PathProgramCache]: Analyzing trace with hash 350797075, now seen corresponding path program 2 times [2022-10-16 14:37:21,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:21,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009232355] [2022-10-16 14:37:21,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:21,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:21,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:21,870 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:37:21,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:21,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009232355] [2022-10-16 14:37:21,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009232355] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:21,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456193032] [2022-10-16 14:37:21,872 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:37:21,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:21,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:21,873 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 14:37:21,888 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 14:37:21,957 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:37:21,957 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:37:21,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 14:37:21,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:22,003 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:37:22,004 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:37:22,076 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:37:22,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456193032] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:37:22,076 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:37:22,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-10-16 14:37:22,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827513458] [2022-10-16 14:37:22,077 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:37:22,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 14:37:22,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:22,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 14:37:22,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2022-10-16 14:37:22,079 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand has 16 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 16 states have internal predecessors, (50), 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 14:37:22,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:22,207 INFO L93 Difference]: Finished difference Result 100 states and 111 transitions. [2022-10-16 14:37:22,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 14:37:22,208 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 16 states have internal predecessors, (50), 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 31 [2022-10-16 14:37:22,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:22,209 INFO L225 Difference]: With dead ends: 100 [2022-10-16 14:37:22,209 INFO L226 Difference]: Without dead ends: 99 [2022-10-16 14:37:22,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2022-10-16 14:37:22,212 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 45 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:22,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 205 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:37:22,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-10-16 14:37:22,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 88. [2022-10-16 14:37:22,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 84 states have (on average 1.1428571428571428) internal successors, (96), 87 states have internal predecessors, (96), 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 14:37:22,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 96 transitions. [2022-10-16 14:37:22,226 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 96 transitions. Word has length 31 [2022-10-16 14:37:22,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:22,226 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 96 transitions. [2022-10-16 14:37:22,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 16 states have internal predecessors, (50), 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 14:37:22,227 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 96 transitions. [2022-10-16 14:37:22,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-16 14:37:22,227 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:22,227 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:22,276 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 14:37:22,443 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,SelfDestructingSolverStorable16 [2022-10-16 14:37:22,443 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:37:22,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:22,444 INFO L85 PathProgramCache]: Analyzing trace with hash 438809600, now seen corresponding path program 1 times [2022-10-16 14:37:22,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:22,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345433269] [2022-10-16 14:37:22,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:22,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:22,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:22,561 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 14:37:22,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:22,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345433269] [2022-10-16 14:37:22,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345433269] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:22,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1019747070] [2022-10-16 14:37:22,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:22,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:22,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:22,563 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 14:37:22,595 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 14:37:22,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:22,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 14:37:22,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:22,780 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:37:22,781 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:37:22,877 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:37:22,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1019747070] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:37:22,877 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:37:22,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 9] total 17 [2022-10-16 14:37:22,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073392017] [2022-10-16 14:37:22,878 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:37:22,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-10-16 14:37:22,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:22,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-10-16 14:37:22,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-10-16 14:37:22,879 INFO L87 Difference]: Start difference. First operand 88 states and 96 transitions. Second operand has 17 states, 17 states have (on average 4.588235294117647) internal successors, (78), 17 states have internal predecessors, (78), 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 14:37:23,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:23,328 INFO L93 Difference]: Finished difference Result 118 states and 127 transitions. [2022-10-16 14:37:23,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-10-16 14:37:23,329 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.588235294117647) internal successors, (78), 17 states have internal predecessors, (78), 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 35 [2022-10-16 14:37:23,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:23,330 INFO L225 Difference]: With dead ends: 118 [2022-10-16 14:37:23,330 INFO L226 Difference]: Without dead ends: 85 [2022-10-16 14:37:23,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 55 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=291, Invalid=1191, Unknown=0, NotChecked=0, Total=1482 [2022-10-16 14:37:23,332 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 129 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:23,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 137 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:37:23,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-10-16 14:37:23,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 82. [2022-10-16 14:37:23,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 78 states have (on average 1.141025641025641) internal successors, (89), 81 states have internal predecessors, (89), 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 14:37:23,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 89 transitions. [2022-10-16 14:37:23,343 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 89 transitions. Word has length 35 [2022-10-16 14:37:23,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:23,343 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 89 transitions. [2022-10-16 14:37:23,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.588235294117647) internal successors, (78), 17 states have internal predecessors, (78), 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 14:37:23,344 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 89 transitions. [2022-10-16 14:37:23,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-16 14:37:23,345 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:23,345 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:23,385 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 14:37:23,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-16 14:37:23,561 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:37:23,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:23,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1815511262, now seen corresponding path program 1 times [2022-10-16 14:37:23,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:23,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496807321] [2022-10-16 14:37:23,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:23,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:23,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:23,654 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 14:37:23,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:23,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496807321] [2022-10-16 14:37:23,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496807321] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:23,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426408968] [2022-10-16 14:37:23,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:23,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:23,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:23,656 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:37:23,682 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 14:37:23,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:23,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 14:37:23,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:23,819 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 14:37:23,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:37:23,885 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 14:37:23,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1426408968] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:37:23,886 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:37:23,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 11 [2022-10-16 14:37:23,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756305928] [2022-10-16 14:37:23,886 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:37:23,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 14:37:23,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:23,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 14:37:23,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:37:23,889 INFO L87 Difference]: Start difference. First operand 82 states and 89 transitions. Second operand has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 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 14:37:24,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:24,104 INFO L93 Difference]: Finished difference Result 112 states and 120 transitions. [2022-10-16 14:37:24,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 14:37:24,104 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 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 41 [2022-10-16 14:37:24,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:24,105 INFO L225 Difference]: With dead ends: 112 [2022-10-16 14:37:24,105 INFO L226 Difference]: Without dead ends: 86 [2022-10-16 14:37:24,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 71 SyntacticMatches, 6 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2022-10-16 14:37:24,107 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 84 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:24,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 132 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:37:24,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-10-16 14:37:24,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 84. [2022-10-16 14:37:24,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 80 states have (on average 1.125) internal successors, (90), 83 states have internal predecessors, (90), 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 14:37:24,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 90 transitions. [2022-10-16 14:37:24,119 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 90 transitions. Word has length 41 [2022-10-16 14:37:24,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:24,119 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 90 transitions. [2022-10-16 14:37:24,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 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 14:37:24,119 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 90 transitions. [2022-10-16 14:37:24,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-16 14:37:24,120 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:24,120 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:24,158 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 14:37:24,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:24,333 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:37:24,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:24,335 INFO L85 PathProgramCache]: Analyzing trace with hash 583453393, now seen corresponding path program 1 times [2022-10-16 14:37:24,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:24,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150098160] [2022-10-16 14:37:24,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:24,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:24,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:24,476 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-16 14:37:24,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:24,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150098160] [2022-10-16 14:37:24,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150098160] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:24,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998101613] [2022-10-16 14:37:24,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:24,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:24,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:24,478 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:37:24,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 14:37:24,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:24,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:37:24,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:24,616 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-16 14:37:24,616 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:37:24,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998101613] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:37:24,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:37:24,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 14:37:24,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190262258] [2022-10-16 14:37:24,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:37:24,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:37:24,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:24,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:37:24,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:37:24,618 INFO L87 Difference]: Start difference. First operand 84 states and 90 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 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 14:37:24,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:24,672 INFO L93 Difference]: Finished difference Result 84 states and 90 transitions. [2022-10-16 14:37:24,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:37:24,673 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 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 48 [2022-10-16 14:37:24,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:24,673 INFO L225 Difference]: With dead ends: 84 [2022-10-16 14:37:24,674 INFO L226 Difference]: Without dead ends: 83 [2022-10-16 14:37:24,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 46 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 14:37:24,675 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 17 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:24,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 101 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:37:24,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-10-16 14:37:24,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2022-10-16 14:37:24,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 80 states have (on average 1.1125) internal successors, (89), 82 states have internal predecessors, (89), 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 14:37:24,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 89 transitions. [2022-10-16 14:37:24,691 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 89 transitions. Word has length 48 [2022-10-16 14:37:24,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:24,692 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 89 transitions. [2022-10-16 14:37:24,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 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 14:37:24,692 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 89 transitions. [2022-10-16 14:37:24,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-10-16 14:37:24,693 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:24,693 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:24,739 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 14:37:24,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:24,908 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:37:24,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:24,909 INFO L85 PathProgramCache]: Analyzing trace with hash -971760235, now seen corresponding path program 2 times [2022-10-16 14:37:24,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:24,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091165755] [2022-10-16 14:37:24,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:24,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:24,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:25,141 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 14:37:25,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:25,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091165755] [2022-10-16 14:37:25,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091165755] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:25,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1310109642] [2022-10-16 14:37:25,142 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:37:25,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:25,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:25,144 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:37:25,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 14:37:25,230 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:37:25,230 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:37:25,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-16 14:37:25,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:25,315 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 1 proven. 23 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 14:37:25,315 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:37:25,519 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 1 proven. 23 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 14:37:25,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1310109642] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:37:25,519 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:37:25,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2022-10-16 14:37:25,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513965734] [2022-10-16 14:37:25,520 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:37:25,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-16 14:37:25,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:25,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-16 14:37:25,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=464, Unknown=0, NotChecked=0, Total=552 [2022-10-16 14:37:25,522 INFO L87 Difference]: Start difference. First operand 83 states and 89 transitions. Second operand has 24 states, 23 states have (on average 4.173913043478261) internal successors, (96), 24 states have internal predecessors, (96), 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 14:37:25,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:25,935 INFO L93 Difference]: Finished difference Result 117 states and 126 transitions. [2022-10-16 14:37:25,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-16 14:37:25,936 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.173913043478261) internal successors, (96), 24 states have internal predecessors, (96), 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 53 [2022-10-16 14:37:25,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:25,937 INFO L225 Difference]: With dead ends: 117 [2022-10-16 14:37:25,937 INFO L226 Difference]: Without dead ends: 116 [2022-10-16 14:37:25,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=360, Invalid=1532, Unknown=0, NotChecked=0, Total=1892 [2022-10-16 14:37:25,939 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 146 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:25,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 133 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:37:25,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-10-16 14:37:25,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 113. [2022-10-16 14:37:25,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 110 states have (on average 1.1090909090909091) internal successors, (122), 112 states have internal predecessors, (122), 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 14:37:25,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 122 transitions. [2022-10-16 14:37:25,953 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 122 transitions. Word has length 53 [2022-10-16 14:37:25,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:25,953 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 122 transitions. [2022-10-16 14:37:25,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.173913043478261) internal successors, (96), 24 states have internal predecessors, (96), 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 14:37:25,953 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 122 transitions. [2022-10-16 14:37:25,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-10-16 14:37:25,954 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:25,954 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:25,991 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-16 14:37:26,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-10-16 14:37:26,167 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:37:26,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:26,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1853678985, now seen corresponding path program 2 times [2022-10-16 14:37:26,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:26,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774751445] [2022-10-16 14:37:26,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:26,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:26,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:26,437 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 13 proven. 15 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 14:37:26,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:26,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774751445] [2022-10-16 14:37:26,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774751445] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:26,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507671995] [2022-10-16 14:37:26,438 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:37:26,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:26,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:26,440 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:37:26,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-16 14:37:26,508 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 14:37:26,508 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:37:26,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:37:26,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:26,620 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 14:37:26,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:37:26,720 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-16 14:37:26,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [507671995] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:37:26,721 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:37:26,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 4, 4] total 16 [2022-10-16 14:37:26,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696855519] [2022-10-16 14:37:26,721 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:37:26,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 14:37:26,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:26,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 14:37:26,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2022-10-16 14:37:26,723 INFO L87 Difference]: Start difference. First operand 113 states and 122 transitions. Second operand has 16 states, 16 states have (on average 5.3125) internal successors, (85), 16 states have internal predecessors, (85), 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 14:37:27,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:27,051 INFO L93 Difference]: Finished difference Result 219 states and 238 transitions. [2022-10-16 14:37:27,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-16 14:37:27,052 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.3125) internal successors, (85), 16 states have internal predecessors, (85), 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 55 [2022-10-16 14:37:27,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:27,053 INFO L225 Difference]: With dead ends: 219 [2022-10-16 14:37:27,053 INFO L226 Difference]: Without dead ends: 162 [2022-10-16 14:37:27,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 105 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=212, Invalid=780, Unknown=0, NotChecked=0, Total=992 [2022-10-16 14:37:27,055 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 112 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:27,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 165 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:37:27,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-10-16 14:37:27,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 158. [2022-10-16 14:37:27,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 156 states have (on average 1.064102564102564) internal successors, (166), 157 states have internal predecessors, (166), 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 14:37:27,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 166 transitions. [2022-10-16 14:37:27,070 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 166 transitions. Word has length 55 [2022-10-16 14:37:27,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:27,070 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 166 transitions. [2022-10-16 14:37:27,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.3125) internal successors, (85), 16 states have internal predecessors, (85), 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 14:37:27,070 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 166 transitions. [2022-10-16 14:37:27,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-10-16 14:37:27,071 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:27,071 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:27,113 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-16 14:37:27,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:27,285 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:37:27,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:27,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1661725397, now seen corresponding path program 3 times [2022-10-16 14:37:27,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:27,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412248325] [2022-10-16 14:37:27,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:27,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:27,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:27,478 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 62 proven. 6 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-16 14:37:27,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:27,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412248325] [2022-10-16 14:37:27,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412248325] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:27,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [628924632] [2022-10-16 14:37:27,480 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:37:27,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:27,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:27,481 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:37:27,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-16 14:37:27,652 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2022-10-16 14:37:27,652 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:37:27,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 14:37:27,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:27,864 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:37:27,864 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:37:28,178 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:37:28,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [628924632] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:37:28,178 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:37:28,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15, 15] total 40 [2022-10-16 14:37:28,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200652522] [2022-10-16 14:37:28,179 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:37:28,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-10-16 14:37:28,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:28,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-10-16 14:37:28,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=270, Invalid=1290, Unknown=0, NotChecked=0, Total=1560 [2022-10-16 14:37:28,181 INFO L87 Difference]: Start difference. First operand 158 states and 166 transitions. Second operand has 40 states, 40 states have (on average 3.15) internal successors, (126), 40 states have internal predecessors, (126), 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 14:37:29,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:29,074 INFO L93 Difference]: Finished difference Result 235 states and 258 transitions. [2022-10-16 14:37:29,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-10-16 14:37:29,074 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 3.15) internal successors, (126), 40 states have internal predecessors, (126), 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 55 [2022-10-16 14:37:29,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:29,076 INFO L225 Difference]: With dead ends: 235 [2022-10-16 14:37:29,076 INFO L226 Difference]: Without dead ends: 192 [2022-10-16 14:37:29,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1422 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1111, Invalid=5051, Unknown=0, NotChecked=0, Total=6162 [2022-10-16 14:37:29,080 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 250 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:29,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 261 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 14:37:29,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-10-16 14:37:29,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 164. [2022-10-16 14:37:29,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 162 states have (on average 1.0987654320987654) internal successors, (178), 163 states have internal predecessors, (178), 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 14:37:29,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 178 transitions. [2022-10-16 14:37:29,094 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 178 transitions. Word has length 55 [2022-10-16 14:37:29,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:29,094 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 178 transitions. [2022-10-16 14:37:29,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 3.15) internal successors, (126), 40 states have internal predecessors, (126), 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 14:37:29,094 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 178 transitions. [2022-10-16 14:37:29,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-10-16 14:37:29,095 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:29,095 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:29,136 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-16 14:37:29,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:29,310 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:37:29,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:29,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1875264867, now seen corresponding path program 3 times [2022-10-16 14:37:29,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:29,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193067962] [2022-10-16 14:37:29,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:29,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:29,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:29,553 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-10-16 14:37:29,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:29,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193067962] [2022-10-16 14:37:29,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193067962] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:29,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348013982] [2022-10-16 14:37:29,554 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:37:29,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:29,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:29,555 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:37:29,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-16 14:37:29,658 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-10-16 14:37:29,658 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:37:29,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 14:37:29,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:29,709 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 6 proven. 17 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-10-16 14:37:29,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:37:29,789 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 6 proven. 17 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-10-16 14:37:29,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348013982] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:37:29,790 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:37:29,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 12 [2022-10-16 14:37:29,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920223895] [2022-10-16 14:37:29,790 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:37:29,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 14:37:29,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:29,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 14:37:29,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:37:29,792 INFO L87 Difference]: Start difference. First operand 164 states and 178 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 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 14:37:29,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:29,968 INFO L93 Difference]: Finished difference Result 220 states and 234 transitions. [2022-10-16 14:37:29,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 14:37:29,969 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 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 89 [2022-10-16 14:37:29,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:29,970 INFO L225 Difference]: With dead ends: 220 [2022-10-16 14:37:29,970 INFO L226 Difference]: Without dead ends: 164 [2022-10-16 14:37:29,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 169 SyntacticMatches, 10 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=324, Unknown=0, NotChecked=0, Total=420 [2022-10-16 14:37:29,971 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 87 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:29,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 83 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:37:29,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-10-16 14:37:29,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2022-10-16 14:37:30,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 162 states have (on average 1.0925925925925926) internal successors, (177), 163 states have internal predecessors, (177), 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 14:37:30,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 177 transitions. [2022-10-16 14:37:30,001 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 177 transitions. Word has length 89 [2022-10-16 14:37:30,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:30,001 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 177 transitions. [2022-10-16 14:37:30,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 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 14:37:30,001 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 177 transitions. [2022-10-16 14:37:30,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-10-16 14:37:30,002 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:30,002 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:30,040 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-10-16 14:37:30,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-10-16 14:37:30,218 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:37:30,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:30,219 INFO L85 PathProgramCache]: Analyzing trace with hash 898262499, now seen corresponding path program 4 times [2022-10-16 14:37:30,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:30,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939766752] [2022-10-16 14:37:30,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:30,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:30,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:30,735 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 1 proven. 164 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-10-16 14:37:30,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:30,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939766752] [2022-10-16 14:37:30,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939766752] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:30,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971170490] [2022-10-16 14:37:30,736 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 14:37:30,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:30,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:30,737 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:37:30,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-10-16 14:37:30,850 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 14:37:30,851 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:37:30,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 14:37:30,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:31,274 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 114 proven. 15 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-10-16 14:37:31,274 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:37:31,628 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 114 proven. 15 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-10-16 14:37:31,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [971170490] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:37:31,628 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:37:31,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 17, 17] total 44 [2022-10-16 14:37:31,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443382190] [2022-10-16 14:37:31,629 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:37:31,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-10-16 14:37:31,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:31,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-10-16 14:37:31,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=1702, Unknown=0, NotChecked=0, Total=1892 [2022-10-16 14:37:31,632 INFO L87 Difference]: Start difference. First operand 164 states and 177 transitions. Second operand has 44 states, 44 states have (on average 3.8636363636363638) internal successors, (170), 44 states have internal predecessors, (170), 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 14:37:33,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:33,369 INFO L93 Difference]: Finished difference Result 326 states and 353 transitions. [2022-10-16 14:37:33,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-10-16 14:37:33,370 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 3.8636363636363638) internal successors, (170), 44 states have internal predecessors, (170), 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 95 [2022-10-16 14:37:33,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:33,371 INFO L225 Difference]: With dead ends: 326 [2022-10-16 14:37:33,372 INFO L226 Difference]: Without dead ends: 270 [2022-10-16 14:37:33,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 159 SyntacticMatches, 8 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2284 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1158, Invalid=7772, Unknown=0, NotChecked=0, Total=8930 [2022-10-16 14:37:33,377 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 304 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:33,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 275 Invalid, 941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 858 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 14:37:33,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-10-16 14:37:33,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 266. [2022-10-16 14:37:33,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 264 states have (on average 1.0643939393939394) internal successors, (281), 265 states have internal predecessors, (281), 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 14:37:33,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 281 transitions. [2022-10-16 14:37:33,402 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 281 transitions. Word has length 95 [2022-10-16 14:37:33,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:33,402 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 281 transitions. [2022-10-16 14:37:33,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 3.8636363636363638) internal successors, (170), 44 states have internal predecessors, (170), 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 14:37:33,403 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 281 transitions. [2022-10-16 14:37:33,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-10-16 14:37:33,404 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:33,404 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:33,441 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-10-16 14:37:33,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:33,621 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:37:33,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:33,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1319162446, now seen corresponding path program 5 times [2022-10-16 14:37:33,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:33,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222604866] [2022-10-16 14:37:33,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:33,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:33,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:33,985 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 6 proven. 43 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2022-10-16 14:37:33,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:33,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222604866] [2022-10-16 14:37:33,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222604866] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:33,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680316968] [2022-10-16 14:37:33,986 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 14:37:33,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:33,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:33,988 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:37:34,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-10-16 14:37:34,159 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2022-10-16 14:37:34,159 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:37:34,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 33 conjunts are in the unsatisfiable core [2022-10-16 14:37:34,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:35,120 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 203 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-10-16 14:37:35,120 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:37:36,734 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 203 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-10-16 14:37:36,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680316968] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:37:36,734 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:37:36,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 32, 32] total 76 [2022-10-16 14:37:36,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844551591] [2022-10-16 14:37:36,737 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:37:36,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2022-10-16 14:37:36,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:36,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2022-10-16 14:37:36,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=615, Invalid=5085, Unknown=0, NotChecked=0, Total=5700 [2022-10-16 14:37:36,764 INFO L87 Difference]: Start difference. First operand 266 states and 281 transitions. Second operand has 76 states, 76 states have (on average 2.5921052631578947) internal successors, (197), 76 states have internal predecessors, (197), 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 14:37:43,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:43,751 INFO L93 Difference]: Finished difference Result 395 states and 417 transitions. [2022-10-16 14:37:43,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-10-16 14:37:43,752 INFO L78 Accepts]: Start accepts. Automaton has has 76 states, 76 states have (on average 2.5921052631578947) internal successors, (197), 76 states have internal predecessors, (197), 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 107 [2022-10-16 14:37:43,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:43,754 INFO L225 Difference]: With dead ends: 395 [2022-10-16 14:37:43,755 INFO L226 Difference]: Without dead ends: 331 [2022-10-16 14:37:43,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7969 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=4048, Invalid=22034, Unknown=0, NotChecked=0, Total=26082 [2022-10-16 14:37:43,764 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 753 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 2889 mSolverCounterSat, 292 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 3181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 292 IncrementalHoareTripleChecker+Valid, 2889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:43,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 595 Invalid, 3181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [292 Valid, 2889 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-10-16 14:37:43,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2022-10-16 14:37:43,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 330. [2022-10-16 14:37:43,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 328 states have (on average 1.048780487804878) internal successors, (344), 329 states have internal predecessors, (344), 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 14:37:43,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 344 transitions. [2022-10-16 14:37:43,808 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 344 transitions. Word has length 107 [2022-10-16 14:37:43,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:43,808 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 344 transitions. [2022-10-16 14:37:43,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 76 states, 76 states have (on average 2.5921052631578947) internal successors, (197), 76 states have internal predecessors, (197), 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 14:37:43,810 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 344 transitions. [2022-10-16 14:37:43,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-10-16 14:37:43,811 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:43,811 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:43,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-10-16 14:37:44,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:44,027 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:37:44,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:44,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1657041641, now seen corresponding path program 4 times [2022-10-16 14:37:44,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:44,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778831698] [2022-10-16 14:37:44,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:44,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:44,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:44,343 INFO L134 CoverageAnalysis]: Checked inductivity of 589 backedges. 233 proven. 15 refuted. 0 times theorem prover too weak. 341 trivial. 0 not checked. [2022-10-16 14:37:44,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:44,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778831698] [2022-10-16 14:37:44,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778831698] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:44,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846810990] [2022-10-16 14:37:44,344 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 14:37:44,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:44,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:44,345 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:37:44,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-10-16 14:37:44,692 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 14:37:44,692 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:37:44,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 14:37:44,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:44,764 INFO L134 CoverageAnalysis]: Checked inductivity of 589 backedges. 233 proven. 15 refuted. 0 times theorem prover too weak. 341 trivial. 0 not checked. [2022-10-16 14:37:44,764 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:37:44,896 INFO L134 CoverageAnalysis]: Checked inductivity of 589 backedges. 233 proven. 15 refuted. 0 times theorem prover too weak. 341 trivial. 0 not checked. [2022-10-16 14:37:44,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [846810990] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:37:44,897 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:37:44,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 14] total 16 [2022-10-16 14:37:44,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086496434] [2022-10-16 14:37:44,897 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:37:44,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 14:37:44,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:44,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 14:37:44,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2022-10-16 14:37:44,899 INFO L87 Difference]: Start difference. First operand 330 states and 344 transitions. Second operand has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 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 14:37:45,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:45,130 INFO L93 Difference]: Finished difference Result 334 states and 347 transitions. [2022-10-16 14:37:45,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-16 14:37:45,131 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 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 107 [2022-10-16 14:37:45,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:45,132 INFO L225 Difference]: With dead ends: 334 [2022-10-16 14:37:45,133 INFO L226 Difference]: Without dead ends: 243 [2022-10-16 14:37:45,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 200 SyntacticMatches, 15 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=168, Invalid=588, Unknown=0, NotChecked=0, Total=756 [2022-10-16 14:37:45,134 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 54 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:45,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 149 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:37:45,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2022-10-16 14:37:45,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 240. [2022-10-16 14:37:45,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 238 states have (on average 1.0588235294117647) internal successors, (252), 239 states have internal predecessors, (252), 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 14:37:45,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 252 transitions. [2022-10-16 14:37:45,161 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 252 transitions. Word has length 107 [2022-10-16 14:37:45,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:45,161 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 252 transitions. [2022-10-16 14:37:45,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 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 14:37:45,161 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 252 transitions. [2022-10-16 14:37:45,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-10-16 14:37:45,162 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:45,163 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:45,193 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-10-16 14:37:45,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:45,377 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:37:45,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:45,378 INFO L85 PathProgramCache]: Analyzing trace with hash 2034790099, now seen corresponding path program 5 times [2022-10-16 14:37:45,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:45,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894132932] [2022-10-16 14:37:45,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:45,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:45,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:45,776 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 294 proven. 28 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2022-10-16 14:37:45,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:45,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894132932] [2022-10-16 14:37:45,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894132932] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:45,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459788617] [2022-10-16 14:37:45,777 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 14:37:45,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:45,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:45,778 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:37:45,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-10-16 14:37:46,306 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 15 check-sat command(s) [2022-10-16 14:37:46,307 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:37:46,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 40 conjunts are in the unsatisfiable core [2022-10-16 14:37:46,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:46,817 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 574 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:37:46,818 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:37:47,626 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 574 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:37:47,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [459788617] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:37:47,627 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:37:47,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 37, 37] total 64 [2022-10-16 14:37:47,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237850768] [2022-10-16 14:37:47,628 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:37:47,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-10-16 14:37:47,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:47,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-10-16 14:37:47,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=778, Invalid=3254, Unknown=0, NotChecked=0, Total=4032 [2022-10-16 14:37:47,630 INFO L87 Difference]: Start difference. First operand 240 states and 252 transitions. Second operand has 64 states, 64 states have (on average 3.203125) internal successors, (205), 64 states have internal predecessors, (205), 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 14:37:49,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:49,031 INFO L93 Difference]: Finished difference Result 839 states and 878 transitions. [2022-10-16 14:37:49,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-10-16 14:37:49,031 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 3.203125) internal successors, (205), 64 states have internal predecessors, (205), 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 111 [2022-10-16 14:37:49,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:49,034 INFO L225 Difference]: With dead ends: 839 [2022-10-16 14:37:49,035 INFO L226 Difference]: Without dead ends: 649 [2022-10-16 14:37:49,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 169 SyntacticMatches, 10 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4510 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=2239, Invalid=10643, Unknown=0, NotChecked=0, Total=12882 [2022-10-16 14:37:49,038 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 294 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:49,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 333 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 14:37:49,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2022-10-16 14:37:49,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 372. [2022-10-16 14:37:49,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 370 states have (on average 1.0783783783783785) internal successors, (399), 371 states have internal predecessors, (399), 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 14:37:49,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 399 transitions. [2022-10-16 14:37:49,085 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 399 transitions. Word has length 111 [2022-10-16 14:37:49,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:49,086 INFO L495 AbstractCegarLoop]: Abstraction has 372 states and 399 transitions. [2022-10-16 14:37:49,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 3.203125) internal successors, (205), 64 states have internal predecessors, (205), 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 14:37:49,086 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 399 transitions. [2022-10-16 14:37:49,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-10-16 14:37:49,090 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:49,090 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:49,115 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-10-16 14:37:49,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-10-16 14:37:49,291 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:37:49,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:49,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1245721983, now seen corresponding path program 6 times [2022-10-16 14:37:49,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:49,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494966579] [2022-10-16 14:37:49,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:49,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:49,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:50,255 INFO L134 CoverageAnalysis]: Checked inductivity of 727 backedges. 509 proven. 153 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-10-16 14:37:50,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:50,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494966579] [2022-10-16 14:37:50,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494966579] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:50,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638388820] [2022-10-16 14:37:50,256 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 14:37:50,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:50,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:50,260 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:37:50,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-10-16 14:37:52,539 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 15 check-sat command(s) [2022-10-16 14:37:52,540 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:37:52,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 50 conjunts are in the unsatisfiable core [2022-10-16 14:37:52,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:52,918 INFO L134 CoverageAnalysis]: Checked inductivity of 727 backedges. 574 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:37:52,918 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:37:53,833 INFO L134 CoverageAnalysis]: Checked inductivity of 727 backedges. 574 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:37:53,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [638388820] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:37:53,834 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:37:53,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 42, 42] total 60 [2022-10-16 14:37:53,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949444128] [2022-10-16 14:37:53,835 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:37:53,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2022-10-16 14:37:53,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:53,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2022-10-16 14:37:53,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=619, Invalid=2921, Unknown=0, NotChecked=0, Total=3540 [2022-10-16 14:37:53,837 INFO L87 Difference]: Start difference. First operand 372 states and 399 transitions. Second operand has 60 states, 60 states have (on average 3.316666666666667) internal successors, (199), 60 states have internal predecessors, (199), 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 14:37:55,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:55,611 INFO L93 Difference]: Finished difference Result 997 states and 1052 transitions. [2022-10-16 14:37:55,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-10-16 14:37:55,612 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 60 states have (on average 3.316666666666667) internal successors, (199), 60 states have internal predecessors, (199), 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 131 [2022-10-16 14:37:55,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:55,620 INFO L225 Difference]: With dead ends: 997 [2022-10-16 14:37:55,620 INFO L226 Difference]: Without dead ends: 807 [2022-10-16 14:37:55,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 214 SyntacticMatches, 29 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5905 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=2674, Invalid=13076, Unknown=0, NotChecked=0, Total=15750 [2022-10-16 14:37:55,626 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 600 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 600 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:55,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [600 Valid, 352 Invalid, 858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 762 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 14:37:55,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2022-10-16 14:37:55,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 419. [2022-10-16 14:37:55,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 417 states have (on average 1.0839328537170263) internal successors, (452), 418 states have internal predecessors, (452), 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 14:37:55,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 452 transitions. [2022-10-16 14:37:55,696 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 452 transitions. Word has length 131 [2022-10-16 14:37:55,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:55,698 INFO L495 AbstractCegarLoop]: Abstraction has 419 states and 452 transitions. [2022-10-16 14:37:55,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 3.316666666666667) internal successors, (199), 60 states have internal predecessors, (199), 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 14:37:55,699 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 452 transitions. [2022-10-16 14:37:55,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-10-16 14:37:55,701 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:55,701 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:55,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-10-16 14:37:55,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-10-16 14:37:55,916 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:37:55,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:55,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1855183385, now seen corresponding path program 7 times [2022-10-16 14:37:55,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:55,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071530277] [2022-10-16 14:37:55,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:55,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:56,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:56,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1009 backedges. 0 proven. 574 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-10-16 14:37:56,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:37:56,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071530277] [2022-10-16 14:37:56,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071530277] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:37:56,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047708587] [2022-10-16 14:37:56,938 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-10-16 14:37:56,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:56,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:37:56,940 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:37:56,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-10-16 14:37:57,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:37:57,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 31 conjunts are in the unsatisfiable core [2022-10-16 14:37:57,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:37:57,248 INFO L134 CoverageAnalysis]: Checked inductivity of 1009 backedges. 0 proven. 574 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-10-16 14:37:57,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:37:58,175 INFO L134 CoverageAnalysis]: Checked inductivity of 1009 backedges. 0 proven. 574 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-10-16 14:37:58,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047708587] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:37:58,176 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:37:58,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31, 31] total 63 [2022-10-16 14:37:58,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824988890] [2022-10-16 14:37:58,177 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:37:58,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-10-16 14:37:58,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:37:58,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-10-16 14:37:58,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1055, Invalid=2977, Unknown=0, NotChecked=0, Total=4032 [2022-10-16 14:37:58,179 INFO L87 Difference]: Start difference. First operand 419 states and 452 transitions. Second operand has 64 states, 63 states have (on average 3.0793650793650795) internal successors, (194), 64 states have internal predecessors, (194), 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 14:37:59,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:37:59,073 INFO L93 Difference]: Finished difference Result 611 states and 680 transitions. [2022-10-16 14:37:59,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-10-16 14:37:59,074 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 3.0793650793650795) internal successors, (194), 64 states have internal predecessors, (194), 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 155 [2022-10-16 14:37:59,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:37:59,082 INFO L225 Difference]: With dead ends: 611 [2022-10-16 14:37:59,082 INFO L226 Difference]: Without dead ends: 610 [2022-10-16 14:37:59,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1912 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=2482, Invalid=6260, Unknown=0, NotChecked=0, Total=8742 [2022-10-16 14:37:59,084 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 348 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:37:59,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 372 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:37:59,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2022-10-16 14:37:59,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 515. [2022-10-16 14:37:59,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 513 states have (on average 1.0994152046783625) internal successors, (564), 514 states have internal predecessors, (564), 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 14:37:59,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 564 transitions. [2022-10-16 14:37:59,133 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 564 transitions. Word has length 155 [2022-10-16 14:37:59,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:37:59,134 INFO L495 AbstractCegarLoop]: Abstraction has 515 states and 564 transitions. [2022-10-16 14:37:59,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 3.0793650793650795) internal successors, (194), 64 states have internal predecessors, (194), 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 14:37:59,134 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 564 transitions. [2022-10-16 14:37:59,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-10-16 14:37:59,136 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:37:59,137 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 15, 15, 15, 15, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:37:59,163 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-10-16 14:37:59,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:37:59,350 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:37:59,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:37:59,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1716301328, now seen corresponding path program 6 times [2022-10-16 14:37:59,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:37:59,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178486264] [2022-10-16 14:37:59,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:37:59,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:37:59,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:38:00,753 INFO L134 CoverageAnalysis]: Checked inductivity of 983 backedges. 6 proven. 937 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-16 14:38:00,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:38:00,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178486264] [2022-10-16 14:38:00,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178486264] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:38:00,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196920731] [2022-10-16 14:38:00,754 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 14:38:00,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:38:00,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:38:00,755 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:38:00,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-10-16 14:38:01,171 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 16 check-sat command(s) [2022-10-16 14:38:01,172 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:38:01,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 34 conjunts are in the unsatisfiable core [2022-10-16 14:38:01,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:38:01,609 INFO L134 CoverageAnalysis]: Checked inductivity of 983 backedges. 0 proven. 915 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-10-16 14:38:01,609 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:38:03,219 INFO L134 CoverageAnalysis]: Checked inductivity of 983 backedges. 0 proven. 915 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-10-16 14:38:03,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196920731] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:38:03,221 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:38:03,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 34, 34] total 81 [2022-10-16 14:38:03,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623244761] [2022-10-16 14:38:03,222 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:38:03,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2022-10-16 14:38:03,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:38:03,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2022-10-16 14:38:03,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1358, Invalid=5284, Unknown=0, NotChecked=0, Total=6642 [2022-10-16 14:38:03,227 INFO L87 Difference]: Start difference. First operand 515 states and 564 transitions. Second operand has 82 states, 81 states have (on average 4.308641975308642) internal successors, (349), 82 states have internal predecessors, (349), 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 14:38:06,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:38:06,443 INFO L93 Difference]: Finished difference Result 676 states and 744 transitions. [2022-10-16 14:38:06,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-10-16 14:38:06,444 INFO L78 Accepts]: Start accepts. Automaton has has 82 states, 81 states have (on average 4.308641975308642) internal successors, (349), 82 states have internal predecessors, (349), 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 177 [2022-10-16 14:38:06,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:38:06,447 INFO L225 Difference]: With dead ends: 676 [2022-10-16 14:38:06,447 INFO L226 Difference]: Without dead ends: 675 [2022-10-16 14:38:06,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6911 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=5653, Invalid=20753, Unknown=0, NotChecked=0, Total=26406 [2022-10-16 14:38:06,451 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 1105 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1105 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 14:38:06,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1105 Valid, 280 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 14:38:06,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2022-10-16 14:38:06,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 675. [2022-10-16 14:38:06,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 673 states have (on average 1.075780089153046) internal successors, (724), 674 states have internal predecessors, (724), 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 14:38:06,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 724 transitions. [2022-10-16 14:38:06,513 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 724 transitions. Word has length 177 [2022-10-16 14:38:06,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:38:06,513 INFO L495 AbstractCegarLoop]: Abstraction has 675 states and 724 transitions. [2022-10-16 14:38:06,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 82 states, 81 states have (on average 4.308641975308642) internal successors, (349), 82 states have internal predecessors, (349), 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 14:38:06,514 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 724 transitions. [2022-10-16 14:38:06,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-10-16 14:38:06,518 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:38:06,518 INFO L195 NwaCegarLoop]: trace histogram [31, 30, 30, 30, 30, 30, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:38:06,550 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-10-16 14:38:06,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:38:06,732 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:38:06,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:38:06,733 INFO L85 PathProgramCache]: Analyzing trace with hash 432793159, now seen corresponding path program 8 times [2022-10-16 14:38:06,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:38:06,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695558051] [2022-10-16 14:38:06,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:38:06,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:38:06,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:38:09,301 INFO L134 CoverageAnalysis]: Checked inductivity of 3105 backedges. 2025 proven. 435 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2022-10-16 14:38:09,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:38:09,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695558051] [2022-10-16 14:38:09,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695558051] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:38:09,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467162893] [2022-10-16 14:38:09,302 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:38:09,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:38:09,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:38:09,304 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:38:09,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-10-16 14:38:09,535 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:38:09,535 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:38:09,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 782 conjuncts, 64 conjunts are in the unsatisfiable core [2022-10-16 14:38:09,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:38:09,792 INFO L134 CoverageAnalysis]: Checked inductivity of 3105 backedges. 2025 proven. 435 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2022-10-16 14:38:09,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:38:10,990 INFO L134 CoverageAnalysis]: Checked inductivity of 3105 backedges. 2025 proven. 435 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2022-10-16 14:38:10,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467162893] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:38:10,991 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:38:10,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 50, 50] total 52 [2022-10-16 14:38:10,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554714738] [2022-10-16 14:38:10,991 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:38:10,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-10-16 14:38:10,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:38:10,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-10-16 14:38:10,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=478, Invalid=2174, Unknown=0, NotChecked=0, Total=2652 [2022-10-16 14:38:10,993 INFO L87 Difference]: Start difference. First operand 675 states and 724 transitions. Second operand has 52 states, 52 states have (on average 3.3076923076923075) internal successors, (172), 52 states have internal predecessors, (172), 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 14:38:12,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:38:12,453 INFO L93 Difference]: Finished difference Result 1519 states and 1601 transitions. [2022-10-16 14:38:12,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-10-16 14:38:12,454 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 3.3076923076923075) internal successors, (172), 52 states have internal predecessors, (172), 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 251 [2022-10-16 14:38:12,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:38:12,459 INFO L225 Difference]: With dead ends: 1519 [2022-10-16 14:38:12,459 INFO L226 Difference]: Without dead ends: 1139 [2022-10-16 14:38:12,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 613 GetRequests, 452 SyntacticMatches, 63 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4537 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1788, Invalid=8112, Unknown=0, NotChecked=0, Total=9900 [2022-10-16 14:38:12,462 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 309 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 1007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 14:38:12,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 433 Invalid, 1007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 14:38:12,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2022-10-16 14:38:12,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 708. [2022-10-16 14:38:12,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 706 states have (on average 1.075070821529745) internal successors, (759), 707 states have internal predecessors, (759), 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 14:38:12,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 759 transitions. [2022-10-16 14:38:12,549 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 759 transitions. Word has length 251 [2022-10-16 14:38:12,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:38:12,550 INFO L495 AbstractCegarLoop]: Abstraction has 708 states and 759 transitions. [2022-10-16 14:38:12,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 3.3076923076923075) internal successors, (172), 52 states have internal predecessors, (172), 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 14:38:12,550 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 759 transitions. [2022-10-16 14:38:12,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2022-10-16 14:38:12,554 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:38:12,554 INFO L195 NwaCegarLoop]: trace histogram [31, 30, 30, 30, 30, 30, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:38:12,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-10-16 14:38:12,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:38:12,768 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:38:12,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:38:12,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1600000003, now seen corresponding path program 9 times [2022-10-16 14:38:12,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:38:12,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199510097] [2022-10-16 14:38:12,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:38:12,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:38:12,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:38:15,683 INFO L134 CoverageAnalysis]: Checked inductivity of 3166 backedges. 2110 proven. 496 refuted. 0 times theorem prover too weak. 560 trivial. 0 not checked. [2022-10-16 14:38:15,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:38:15,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199510097] [2022-10-16 14:38:15,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199510097] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:38:15,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320519494] [2022-10-16 14:38:15,684 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:38:15,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:38:15,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:38:15,685 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:38:15,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-10-16 14:39:02,014 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 31 check-sat command(s) [2022-10-16 14:39:02,014 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:39:02,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 63 conjunts are in the unsatisfiable core [2022-10-16 14:39:02,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:39:05,097 INFO L134 CoverageAnalysis]: Checked inductivity of 3166 backedges. 0 proven. 2670 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2022-10-16 14:39:05,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:39:10,407 INFO L134 CoverageAnalysis]: Checked inductivity of 3166 backedges. 0 proven. 2670 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2022-10-16 14:39:10,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320519494] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:39:10,407 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:39:10,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 63, 63] total 178 [2022-10-16 14:39:10,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611167197] [2022-10-16 14:39:10,408 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:39:10,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 178 states [2022-10-16 14:39:10,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:39:10,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 178 interpolants. [2022-10-16 14:39:10,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4545, Invalid=26961, Unknown=0, NotChecked=0, Total=31506 [2022-10-16 14:39:10,414 INFO L87 Difference]: Start difference. First operand 708 states and 759 transitions. Second operand has 178 states, 178 states have (on average 3.1123595505617976) internal successors, (554), 178 states have internal predecessors, (554), 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 14:39:25,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:39:25,593 INFO L93 Difference]: Finished difference Result 1951 states and 2109 transitions. [2022-10-16 14:39:25,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 324 states. [2022-10-16 14:39:25,594 INFO L78 Accepts]: Start accepts. Automaton has has 178 states, 178 states have (on average 3.1123595505617976) internal successors, (554), 178 states have internal predecessors, (554), 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 255 [2022-10-16 14:39:25,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:39:25,601 INFO L225 Difference]: With dead ends: 1951 [2022-10-16 14:39:25,601 INFO L226 Difference]: Without dead ends: 1577 [2022-10-16 14:39:25,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 818 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 416 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51127 ImplicationChecksByTransitivity, 21.1s TimeCoverageRelationStatistics Valid=25770, Invalid=148536, Unknown=0, NotChecked=0, Total=174306 [2022-10-16 14:39:25,616 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 2139 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 2189 mSolverCounterSat, 859 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2139 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 3048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 859 IncrementalHoareTripleChecker+Valid, 2189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:39:25,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2139 Valid, 438 Invalid, 3048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [859 Valid, 2189 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-10-16 14:39:25,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1577 states. [2022-10-16 14:39:25,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1577 to 933. [2022-10-16 14:39:25,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 933 states, 931 states have (on average 1.0934479054779807) internal successors, (1018), 932 states have internal predecessors, (1018), 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 14:39:25,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1018 transitions. [2022-10-16 14:39:25,746 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1018 transitions. Word has length 255 [2022-10-16 14:39:25,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:39:25,746 INFO L495 AbstractCegarLoop]: Abstraction has 933 states and 1018 transitions. [2022-10-16 14:39:25,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 178 states, 178 states have (on average 3.1123595505617976) internal successors, (554), 178 states have internal predecessors, (554), 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 14:39:25,747 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1018 transitions. [2022-10-16 14:39:25,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2022-10-16 14:39:25,753 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:39:25,753 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 36, 35, 35, 35, 35, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:39:25,798 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-10-16 14:39:25,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2022-10-16 14:39:25,968 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:39:25,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:39:25,970 INFO L85 PathProgramCache]: Analyzing trace with hash -413445748, now seen corresponding path program 7 times [2022-10-16 14:39:25,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:39:25,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295610237] [2022-10-16 14:39:25,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:39:25,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:39:26,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:39:31,313 INFO L134 CoverageAnalysis]: Checked inductivity of 5003 backedges. 6 proven. 4957 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-16 14:39:31,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:39:31,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295610237] [2022-10-16 14:39:31,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295610237] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:39:31,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772207542] [2022-10-16 14:39:31,314 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-10-16 14:39:31,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:39:31,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:39:31,315 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:39:31,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-10-16 14:39:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:39:31,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 980 conjuncts, 20 conjunts are in the unsatisfiable core [2022-10-16 14:39:31,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:39:32,708 INFO L134 CoverageAnalysis]: Checked inductivity of 5003 backedges. 1091 proven. 28 refuted. 0 times theorem prover too weak. 3884 trivial. 0 not checked. [2022-10-16 14:39:32,708 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:39:33,788 INFO L134 CoverageAnalysis]: Checked inductivity of 5003 backedges. 1091 proven. 28 refuted. 0 times theorem prover too weak. 3884 trivial. 0 not checked. [2022-10-16 14:39:33,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [772207542] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:39:33,788 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:39:33,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [81, 21, 21] total 110 [2022-10-16 14:39:33,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199636244] [2022-10-16 14:39:33,789 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:39:33,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 110 states [2022-10-16 14:39:33,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:39:33,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2022-10-16 14:39:33,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1581, Invalid=10409, Unknown=0, NotChecked=0, Total=11990 [2022-10-16 14:39:33,792 INFO L87 Difference]: Start difference. First operand 933 states and 1018 transitions. Second operand has 110 states, 110 states have (on average 3.8727272727272726) internal successors, (426), 110 states have internal predecessors, (426), 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 14:39:40,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:39:40,834 INFO L93 Difference]: Finished difference Result 1235 states and 1321 transitions. [2022-10-16 14:39:40,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2022-10-16 14:39:40,835 INFO L78 Accepts]: Start accepts. Automaton has has 110 states, 110 states have (on average 3.8727272727272726) internal successors, (426), 110 states have internal predecessors, (426), 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 337 [2022-10-16 14:39:40,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:39:40,839 INFO L225 Difference]: With dead ends: 1235 [2022-10-16 14:39:40,839 INFO L226 Difference]: Without dead ends: 918 [2022-10-16 14:39:40,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 869 GetRequests, 635 SyntacticMatches, 10 SemanticMatches, 224 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13428 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=8325, Invalid=42525, Unknown=0, NotChecked=0, Total=50850 [2022-10-16 14:39:40,843 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 814 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 1371 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 814 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 1513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 1371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 14:39:40,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [814 Valid, 431 Invalid, 1513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 1371 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-16 14:39:40,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 918 states. [2022-10-16 14:39:40,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 918 to 918. [2022-10-16 14:39:40,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 916 states have (on average 1.0938864628820961) internal successors, (1002), 917 states have internal predecessors, (1002), 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 14:39:40,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1002 transitions. [2022-10-16 14:39:40,930 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1002 transitions. Word has length 337 [2022-10-16 14:39:40,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:39:40,931 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1002 transitions. [2022-10-16 14:39:40,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 110 states, 110 states have (on average 3.8727272727272726) internal successors, (426), 110 states have internal predecessors, (426), 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 14:39:40,931 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1002 transitions. [2022-10-16 14:39:40,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2022-10-16 14:39:40,934 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:39:40,935 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 37, 36, 36, 36, 36, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:39:40,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-10-16 14:39:41,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-10-16 14:39:41,149 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:39:41,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:39:41,150 INFO L85 PathProgramCache]: Analyzing trace with hash -2116363941, now seen corresponding path program 8 times [2022-10-16 14:39:41,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:39:41,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559697525] [2022-10-16 14:39:41,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:39:41,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:39:41,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:39:42,068 INFO L134 CoverageAnalysis]: Checked inductivity of 5305 backedges. 15 proven. 70 refuted. 0 times theorem prover too weak. 5220 trivial. 0 not checked. [2022-10-16 14:39:42,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:39:42,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559697525] [2022-10-16 14:39:42,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559697525] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:39:42,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960539248] [2022-10-16 14:39:42,069 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:39:42,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:39:42,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:39:42,071 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:39:42,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-10-16 14:39:42,326 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:39:42,326 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:39:42,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 1015 conjuncts, 20 conjunts are in the unsatisfiable core [2022-10-16 14:39:42,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:39:42,418 INFO L134 CoverageAnalysis]: Checked inductivity of 5305 backedges. 28 proven. 57 refuted. 0 times theorem prover too weak. 5220 trivial. 0 not checked. [2022-10-16 14:39:42,418 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:39:42,600 INFO L134 CoverageAnalysis]: Checked inductivity of 5305 backedges. 28 proven. 57 refuted. 0 times theorem prover too weak. 5220 trivial. 0 not checked. [2022-10-16 14:39:42,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960539248] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:39:42,601 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:39:42,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 16] total 18 [2022-10-16 14:39:42,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857375843] [2022-10-16 14:39:42,602 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:39:42,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 14:39:42,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:39:42,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 14:39:42,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-10-16 14:39:42,607 INFO L87 Difference]: Start difference. First operand 918 states and 1002 transitions. Second operand has 18 states, 18 states have (on average 3.888888888888889) internal successors, (70), 18 states have internal predecessors, (70), 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 14:39:42,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:39:42,915 INFO L93 Difference]: Finished difference Result 1232 states and 1319 transitions. [2022-10-16 14:39:42,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-16 14:39:42,915 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.888888888888889) internal successors, (70), 18 states have internal predecessors, (70), 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 349 [2022-10-16 14:39:42,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:39:42,919 INFO L225 Difference]: With dead ends: 1232 [2022-10-16 14:39:42,919 INFO L226 Difference]: Without dead ends: 936 [2022-10-16 14:39:42,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 732 GetRequests, 683 SyntacticMatches, 18 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=212, Invalid=844, Unknown=0, NotChecked=0, Total=1056 [2022-10-16 14:39:42,921 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 117 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:39:42,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 79 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:39:42,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936 states. [2022-10-16 14:39:43,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 936. [2022-10-16 14:39:43,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 936 states, 934 states have (on average 1.0899357601713062) internal successors, (1018), 935 states have internal predecessors, (1018), 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 14:39:43,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1018 transitions. [2022-10-16 14:39:43,010 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1018 transitions. Word has length 349 [2022-10-16 14:39:43,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:39:43,011 INFO L495 AbstractCegarLoop]: Abstraction has 936 states and 1018 transitions. [2022-10-16 14:39:43,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.888888888888889) internal successors, (70), 18 states have internal predecessors, (70), 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 14:39:43,011 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1018 transitions. [2022-10-16 14:39:43,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2022-10-16 14:39:43,014 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:39:43,015 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 37, 36, 36, 36, 36, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:39:43,054 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-10-16 14:39:43,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-10-16 14:39:43,229 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:39:43,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:39:43,230 INFO L85 PathProgramCache]: Analyzing trace with hash -771236447, now seen corresponding path program 9 times [2022-10-16 14:39:43,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:39:43,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041815296] [2022-10-16 14:39:43,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:39:43,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:39:43,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:39:48,424 INFO L134 CoverageAnalysis]: Checked inductivity of 5330 backedges. 15 proven. 5250 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-10-16 14:39:48,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:39:48,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041815296] [2022-10-16 14:39:48,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041815296] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:39:48,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822034626] [2022-10-16 14:39:48,425 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:39:48,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:39:48,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:39:48,428 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:39:48,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-10-16 14:39:50,109 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 37 check-sat command(s) [2022-10-16 14:39:50,109 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:39:50,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 1032 conjuncts, 86 conjunts are in the unsatisfiable core [2022-10-16 14:39:50,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:39:57,712 INFO L134 CoverageAnalysis]: Checked inductivity of 5330 backedges. 5220 proven. 65 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-10-16 14:39:57,712 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:40:06,722 INFO L134 CoverageAnalysis]: Checked inductivity of 5330 backedges. 5220 proven. 65 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-10-16 14:40:06,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1822034626] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:40:06,723 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:40:06,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [85, 87, 87] total 250 [2022-10-16 14:40:06,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519632673] [2022-10-16 14:40:06,723 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:40:06,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 250 states [2022-10-16 14:40:06,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:40:06,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 250 interpolants. [2022-10-16 14:40:06,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8467, Invalid=53783, Unknown=0, NotChecked=0, Total=62250 [2022-10-16 14:40:06,732 INFO L87 Difference]: Start difference. First operand 936 states and 1018 transitions. Second operand has 250 states, 250 states have (on average 3.96) internal successors, (990), 250 states have internal predecessors, (990), 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 14:40:34,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:40:34,029 INFO L93 Difference]: Finished difference Result 1633 states and 1732 transitions. [2022-10-16 14:40:34,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 281 states. [2022-10-16 14:40:34,032 INFO L78 Accepts]: Start accepts. Automaton has has 250 states, 250 states have (on average 3.96) internal successors, (990), 250 states have internal predecessors, (990), 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 355 [2022-10-16 14:40:34,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:40:34,036 INFO L225 Difference]: With dead ends: 1633 [2022-10-16 14:40:34,036 INFO L226 Difference]: Without dead ends: 987 [2022-10-16 14:40:34,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1066 GetRequests, 539 SyntacticMatches, 6 SemanticMatches, 521 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91730 ImplicationChecksByTransitivity, 42.2s TimeCoverageRelationStatistics Valid=33644, Invalid=239362, Unknown=0, NotChecked=0, Total=273006 [2022-10-16 14:40:34,050 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 2818 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 3558 mSolverCounterSat, 569 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2818 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 4127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 569 IncrementalHoareTripleChecker+Valid, 3558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-10-16 14:40:34,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2818 Valid, 502 Invalid, 4127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [569 Valid, 3558 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-10-16 14:40:34,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 987 states. [2022-10-16 14:40:34,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 987 to 987. [2022-10-16 14:40:34,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 987 states, 985 states have (on average 1.068020304568528) internal successors, (1052), 986 states have internal predecessors, (1052), 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 14:40:34,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 987 states to 987 states and 1052 transitions. [2022-10-16 14:40:34,147 INFO L78 Accepts]: Start accepts. Automaton has 987 states and 1052 transitions. Word has length 355 [2022-10-16 14:40:34,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:40:34,147 INFO L495 AbstractCegarLoop]: Abstraction has 987 states and 1052 transitions. [2022-10-16 14:40:34,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 250 states, 250 states have (on average 3.96) internal successors, (990), 250 states have internal predecessors, (990), 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 14:40:34,148 INFO L276 IsEmpty]: Start isEmpty. Operand 987 states and 1052 transitions. [2022-10-16 14:40:34,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2022-10-16 14:40:34,152 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:40:34,152 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 38, 37, 37, 37, 37, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:40:34,191 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2022-10-16 14:40:34,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:40:34,367 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:40:34,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:40:34,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1457287804, now seen corresponding path program 10 times [2022-10-16 14:40:34,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:40:34,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261961779] [2022-10-16 14:40:34,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:40:34,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:40:34,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:40:36,508 INFO L134 CoverageAnalysis]: Checked inductivity of 6044 backedges. 341 proven. 190 refuted. 0 times theorem prover too weak. 5513 trivial. 0 not checked. [2022-10-16 14:40:36,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:40:36,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261961779] [2022-10-16 14:40:36,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261961779] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:40:36,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645092490] [2022-10-16 14:40:36,510 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 14:40:36,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:40:36,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:40:36,512 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:40:36,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2022-10-16 14:40:37,694 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 14:40:37,695 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:40:37,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 1221 conjuncts, 44 conjunts are in the unsatisfiable core [2022-10-16 14:40:37,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:40:37,844 INFO L134 CoverageAnalysis]: Checked inductivity of 6044 backedges. 341 proven. 190 refuted. 0 times theorem prover too weak. 5513 trivial. 0 not checked. [2022-10-16 14:40:37,844 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:40:38,428 INFO L134 CoverageAnalysis]: Checked inductivity of 6044 backedges. 341 proven. 190 refuted. 0 times theorem prover too weak. 5513 trivial. 0 not checked. [2022-10-16 14:40:38,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645092490] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:40:38,428 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:40:38,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 35, 35] total 37 [2022-10-16 14:40:38,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680336474] [2022-10-16 14:40:38,429 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:40:38,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-10-16 14:40:38,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:40:38,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-10-16 14:40:38,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=248, Invalid=1084, Unknown=0, NotChecked=0, Total=1332 [2022-10-16 14:40:38,432 INFO L87 Difference]: Start difference. First operand 987 states and 1052 transitions. Second operand has 37 states, 37 states have (on average 3.5675675675675675) internal successors, (132), 37 states have internal predecessors, (132), 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 14:40:39,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:40:39,236 INFO L93 Difference]: Finished difference Result 1380 states and 1448 transitions. [2022-10-16 14:40:39,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-10-16 14:40:39,237 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 3.5675675675675675) internal successors, (132), 37 states have internal predecessors, (132), 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 419 [2022-10-16 14:40:39,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:40:39,240 INFO L225 Difference]: With dead ends: 1380 [2022-10-16 14:40:39,240 INFO L226 Difference]: Without dead ends: 987 [2022-10-16 14:40:39,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 914 GetRequests, 803 SyntacticMatches, 43 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2083 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=903, Invalid=3927, Unknown=0, NotChecked=0, Total=4830 [2022-10-16 14:40:39,242 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 121 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:40:39,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 330 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:40:39,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 987 states. [2022-10-16 14:40:39,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 987 to 987. [2022-10-16 14:40:39,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 987 states, 985 states have (on average 1.067005076142132) internal successors, (1051), 986 states have internal predecessors, (1051), 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 14:40:39,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 987 states to 987 states and 1051 transitions. [2022-10-16 14:40:39,343 INFO L78 Accepts]: Start accepts. Automaton has 987 states and 1051 transitions. Word has length 419 [2022-10-16 14:40:39,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:40:39,344 INFO L495 AbstractCegarLoop]: Abstraction has 987 states and 1051 transitions. [2022-10-16 14:40:39,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 3.5675675675675675) internal successors, (132), 37 states have internal predecessors, (132), 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 14:40:39,344 INFO L276 IsEmpty]: Start isEmpty. Operand 987 states and 1051 transitions. [2022-10-16 14:40:39,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2022-10-16 14:40:39,348 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:40:39,349 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 38, 37, 37, 37, 37, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:40:39,390 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2022-10-16 14:40:39,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-10-16 14:40:39,564 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 14:40:39,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:40:39,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1486916416, now seen corresponding path program 11 times [2022-10-16 14:40:39,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:40:39,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850920901] [2022-10-16 14:40:39,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:40:39,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:40:39,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:40:46,681 INFO L134 CoverageAnalysis]: Checked inductivity of 6085 backedges. 153 proven. 5591 refuted. 0 times theorem prover too weak. 341 trivial. 0 not checked. [2022-10-16 14:40:46,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:40:46,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850920901] [2022-10-16 14:40:46,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850920901] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:40:46,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323901110] [2022-10-16 14:40:46,682 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 14:40:46,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:40:46,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:40:46,683 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:40:46,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-10-16 14:40:49,064 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 38 check-sat command(s) [2022-10-16 14:40:49,064 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:40:49,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 1234 conjuncts, 100 conjunts are in the unsatisfiable core [2022-10-16 14:40:49,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:40:58,957 INFO L134 CoverageAnalysis]: Checked inductivity of 6085 backedges. 5513 proven. 231 refuted. 0 times theorem prover too weak. 341 trivial. 0 not checked. [2022-10-16 14:40:58,957 INFO L328 TraceCheckSpWp]: Computing backward predicates...