/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/array-industry-pattern/array_mul_init.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 11:03:37,242 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 11:03:37,246 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 11:03:37,312 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 11:03:37,354 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 11:03:37,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 11:03:37,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 11:03:37,359 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 11:03:37,385 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 11:03:37,386 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 11:03:37,386 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 11:03:37,386 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 11:03:37,387 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 11:03:37,388 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 11:03:37,388 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 11:03:37,389 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 11:03:37,389 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 11:03:37,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 11:03:37,390 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 11:03:37,390 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 11:03:37,390 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 11:03:37,390 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 11:03:37,391 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 11:03:37,391 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 11:03:37,391 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 11:03:37,391 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 11:03:37,392 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 11:03:37,392 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 11:03:37,392 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 11:03:37,392 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 11:03:37,393 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 11:03:37,393 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 11:03:37,393 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 11:03:37,394 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 11:03:37,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 11:03:37,394 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 11:03:37,394 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 11:03:37,395 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 11:03:37,395 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 11:03:37,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 11:03:37,395 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 11:03:37,396 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 11:03:37,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 11:03:37,819 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 11:03:37,824 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 11:03:37,825 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 11:03:37,826 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 11:03:37,828 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-industry-pattern/array_mul_init.i [2022-10-16 11:03:37,909 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/327270fdd/06adfc7dac804e9fa5d76c61b221860f/FLAG17939f7dd [2022-10-16 11:03:38,610 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 11:03:38,611 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-industry-pattern/array_mul_init.i [2022-10-16 11:03:38,618 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/327270fdd/06adfc7dac804e9fa5d76c61b221860f/FLAG17939f7dd [2022-10-16 11:03:38,946 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/327270fdd/06adfc7dac804e9fa5d76c61b221860f [2022-10-16 11:03:38,949 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 11:03:38,954 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 11:03:38,957 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 11:03:38,957 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 11:03:38,961 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 11:03:38,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:03:38" (1/1) ... [2022-10-16 11:03:38,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2526fe08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:03:38, skipping insertion in model container [2022-10-16 11:03:38,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:03:38" (1/1) ... [2022-10-16 11:03:38,976 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 11:03:38,996 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 11:03:39,157 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-industry-pattern/array_mul_init.i[807,820] [2022-10-16 11:03:39,175 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 11:03:39,185 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 11:03:39,200 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-industry-pattern/array_mul_init.i[807,820] [2022-10-16 11:03:39,209 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 11:03:39,226 INFO L208 MainTranslator]: Completed translation [2022-10-16 11:03:39,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:03:39 WrapperNode [2022-10-16 11:03:39,227 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 11:03:39,228 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 11:03:39,228 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 11:03:39,228 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 11:03:39,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:03:39" (1/1) ... [2022-10-16 11:03:39,246 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:03:39" (1/1) ... [2022-10-16 11:03:39,271 INFO L138 Inliner]: procedures = 16, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 82 [2022-10-16 11:03:39,272 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 11:03:39,274 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 11:03:39,274 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 11:03:39,274 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 11:03:39,284 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:03:39" (1/1) ... [2022-10-16 11:03:39,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:03:39" (1/1) ... [2022-10-16 11:03:39,287 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:03:39" (1/1) ... [2022-10-16 11:03:39,287 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:03:39" (1/1) ... [2022-10-16 11:03:39,294 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:03:39" (1/1) ... [2022-10-16 11:03:39,300 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:03:39" (1/1) ... [2022-10-16 11:03:39,301 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:03:39" (1/1) ... [2022-10-16 11:03:39,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:03:39" (1/1) ... [2022-10-16 11:03:39,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 11:03:39,306 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 11:03:39,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 11:03:39,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 11:03:39,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:03:39" (1/1) ... [2022-10-16 11:03:39,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 11:03:39,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:03:39,347 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 11:03:39,374 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 11:03:39,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 11:03:39,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 11:03:39,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 11:03:39,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 11:03:39,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 11:03:39,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 11:03:39,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 11:03:39,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 11:03:39,505 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 11:03:39,508 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 11:03:39,771 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 11:03:39,780 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 11:03:39,780 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-16 11:03:39,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:03:39 BoogieIcfgContainer [2022-10-16 11:03:39,783 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 11:03:39,785 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 11:03:39,786 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 11:03:39,790 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 11:03:39,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:03:38" (1/3) ... [2022-10-16 11:03:39,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1196edef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:03:39, skipping insertion in model container [2022-10-16 11:03:39,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:03:39" (2/3) ... [2022-10-16 11:03:39,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1196edef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:03:39, skipping insertion in model container [2022-10-16 11:03:39,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:03:39" (3/3) ... [2022-10-16 11:03:39,794 INFO L112 eAbstractionObserver]: Analyzing ICFG array_mul_init.i [2022-10-16 11:03:39,855 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 11:03:39,855 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-10-16 11:03:39,926 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 11:03:39,949 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;@1cb12e16, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 11:03:39,950 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-10-16 11:03:39,960 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 29 states have (on average 1.6551724137931034) internal successors, (48), 39 states have internal predecessors, (48), 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 11:03:39,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 11:03:39,971 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:03:39,972 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 11:03:39,973 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 11:03:39,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:03:39,988 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2022-10-16 11:03:39,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:03:40,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050919582] [2022-10-16 11:03:40,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:03:40,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:03:40,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:03:40,464 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 11:03:40,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:03:40,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050919582] [2022-10-16 11:03:40,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050919582] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:03:40,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:03:40,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:03:40,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656118229] [2022-10-16 11:03:40,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:03:40,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:03:40,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:03:40,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:03:40,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:03:40,513 INFO L87 Difference]: Start difference. First operand has 40 states, 29 states have (on average 1.6551724137931034) internal successors, (48), 39 states have internal predecessors, (48), 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 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:03:40,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:03:40,626 INFO L93 Difference]: Finished difference Result 102 states and 127 transitions. [2022-10-16 11:03:40,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:03:40,629 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-10-16 11:03:40,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:03:40,640 INFO L225 Difference]: With dead ends: 102 [2022-10-16 11:03:40,640 INFO L226 Difference]: Without dead ends: 62 [2022-10-16 11:03:40,644 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 11:03:40,649 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 28 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:03:40,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 86 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:03:40,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-10-16 11:03:40,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 39. [2022-10-16 11:03:40,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 30 states have (on average 1.4333333333333333) internal successors, (43), 38 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:03:40,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2022-10-16 11:03:40,694 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 5 [2022-10-16 11:03:40,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:03:40,694 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2022-10-16 11:03:40,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:03:40,695 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2022-10-16 11:03:40,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 11:03:40,696 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:03:40,696 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-10-16 11:03:40,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 11:03:40,697 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 11:03:40,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:03:40,698 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2022-10-16 11:03:40,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:03:40,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785670927] [2022-10-16 11:03:40,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:03:40,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:03:40,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:03:40,814 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 11:03:40,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:03:40,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785670927] [2022-10-16 11:03:40,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785670927] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:03:40,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:03:40,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:03:40,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977270203] [2022-10-16 11:03:40,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:03:40,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:03:40,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:03:40,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:03:40,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:03:40,819 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:03:40,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:03:40,880 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2022-10-16 11:03:40,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:03:40,880 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 11:03:40,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:03:40,882 INFO L225 Difference]: With dead ends: 40 [2022-10-16 11:03:40,882 INFO L226 Difference]: Without dead ends: 39 [2022-10-16 11:03:40,882 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 11:03:40,884 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 29 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:03:40,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 50 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:03:40,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-10-16 11:03:40,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2022-10-16 11:03:40,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 30 states have (on average 1.4) internal successors, (42), 37 states have internal predecessors, (42), 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 11:03:40,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2022-10-16 11:03:40,893 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 9 [2022-10-16 11:03:40,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:03:40,894 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2022-10-16 11:03:40,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:03:40,894 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2022-10-16 11:03:40,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 11:03:40,895 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:03:40,895 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-10-16 11:03:40,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 11:03:40,896 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 11:03:40,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:03:40,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2022-10-16 11:03:40,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:03:40,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785856602] [2022-10-16 11:03:40,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:03:40,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:03:40,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:03:41,140 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 11:03:41,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:03:41,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785856602] [2022-10-16 11:03:41,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785856602] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:03:41,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [37104001] [2022-10-16 11:03:41,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:03:41,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:03:41,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:03:41,155 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 11:03:41,169 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 11:03:41,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:03:41,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:03:41,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:03:41,417 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 11:03:41,418 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:03:41,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [37104001] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:03:41,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:03:41,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 11:03:41,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363911405] [2022-10-16 11:03:41,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:03:41,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 11:03:41,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:03:41,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 11:03:41,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:03:41,425 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:03:41,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:03:41,527 INFO L93 Difference]: Finished difference Result 61 states and 67 transitions. [2022-10-16 11:03:41,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 11:03:41,528 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-16 11:03:41,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:03:41,529 INFO L225 Difference]: With dead ends: 61 [2022-10-16 11:03:41,529 INFO L226 Difference]: Without dead ends: 60 [2022-10-16 11:03:41,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 11:03:41,532 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 29 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:03:41,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 106 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:03:41,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-10-16 11:03:41,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 34. [2022-10-16 11:03:41,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 33 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 11:03:41,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2022-10-16 11:03:41,542 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 10 [2022-10-16 11:03:41,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:03:41,542 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2022-10-16 11:03:41,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:03:41,543 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2022-10-16 11:03:41,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 11:03:41,543 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:03:41,544 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:03:41,590 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 11:03:41,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:03:41,754 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 11:03:41,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:03:41,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1713504246, now seen corresponding path program 1 times [2022-10-16 11:03:41,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:03:41,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908967705] [2022-10-16 11:03:41,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:03:41,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:03:41,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:03:41,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:03:41,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908967705] [2022-10-16 11:03:41,813 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-10-16 11:03:41,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922825785] [2022-10-16 11:03:41,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:03:41,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:03:41,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:03:41,818 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 11:03:41,822 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 11:03:41,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:03:41,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 11:03:41,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:03:41,909 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 11:03:41,909 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:03:41,953 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 11:03:41,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1922825785] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:03:41,954 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:03:41,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-10-16 11:03:41,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096215975] [2022-10-16 11:03:41,955 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:03:41,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 11:03:41,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:03:41,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 11:03:41,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:03:41,957 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 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 11:03:42,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:03:42,067 INFO L93 Difference]: Finished difference Result 92 states and 103 transitions. [2022-10-16 11:03:42,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 11:03:42,067 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 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 11:03:42,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:03:42,069 INFO L225 Difference]: With dead ends: 92 [2022-10-16 11:03:42,069 INFO L226 Difference]: Without dead ends: 65 [2022-10-16 11:03:42,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-10-16 11:03:42,072 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 55 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:03:42,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 130 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:03:42,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-10-16 11:03:42,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 42. [2022-10-16 11:03:42,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 41 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 11:03:42,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2022-10-16 11:03:42,080 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 11 [2022-10-16 11:03:42,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:03:42,081 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2022-10-16 11:03:42,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 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 11:03:42,082 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2022-10-16 11:03:42,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 11:03:42,082 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:03:42,083 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:03:42,124 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 11:03:42,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-10-16 11:03:42,297 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 11:03:42,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:03:42,299 INFO L85 PathProgramCache]: Analyzing trace with hash -230725374, now seen corresponding path program 2 times [2022-10-16 11:03:42,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:03:42,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065709353] [2022-10-16 11:03:42,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:03:42,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:03:42,331 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:03:42,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [89404512] [2022-10-16 11:03:42,332 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:03:42,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:03:42,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:03:42,340 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 11:03:42,359 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 11:03:42,408 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 11:03:42,409 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:03:42,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:03:42,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:03:42,432 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 11:03:42,432 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:03:42,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:03:42,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065709353] [2022-10-16 11:03:42,433 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:03:42,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89404512] [2022-10-16 11:03:42,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89404512] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:03:42,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:03:42,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 11:03:42,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937723204] [2022-10-16 11:03:42,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:03:42,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 11:03:42,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:03:42,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 11:03:42,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:03:42,436 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:03:42,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:03:42,445 INFO L93 Difference]: Finished difference Result 64 states and 71 transitions. [2022-10-16 11:03:42,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:03:42,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-10-16 11:03:42,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:03:42,447 INFO L225 Difference]: With dead ends: 64 [2022-10-16 11:03:42,448 INFO L226 Difference]: Without dead ends: 63 [2022-10-16 11:03:42,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:03:42,450 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 26 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:03:42,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 89 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:03:42,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-10-16 11:03:42,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 41. [2022-10-16 11:03:42,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 40 states have internal predecessors, (45), 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 11:03:42,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2022-10-16 11:03:42,457 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 19 [2022-10-16 11:03:42,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:03:42,458 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2022-10-16 11:03:42,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:03:42,458 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2022-10-16 11:03:42,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 11:03:42,459 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:03:42,459 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:03:42,497 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 11:03:42,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:03:42,673 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 11:03:42,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:03:42,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1437454021, now seen corresponding path program 1 times [2022-10-16 11:03:42,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:03:42,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542378222] [2022-10-16 11:03:42,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:03:42,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:03:42,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:03:42,809 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 11:03:42,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:03:42,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542378222] [2022-10-16 11:03:42,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542378222] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:03:42,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:03:42,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:03:42,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505758270] [2022-10-16 11:03:42,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:03:42,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:03:42,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:03:42,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:03:42,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:03:42,813 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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 11:03:42,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:03:42,888 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2022-10-16 11:03:42,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:03:42,889 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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 20 [2022-10-16 11:03:42,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:03:42,892 INFO L225 Difference]: With dead ends: 63 [2022-10-16 11:03:42,892 INFO L226 Difference]: Without dead ends: 61 [2022-10-16 11:03:42,893 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 11:03:42,897 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 23 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:03:42,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 63 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:03:42,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-10-16 11:03:42,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 47. [2022-10-16 11:03:42,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 41 states have (on average 1.2682926829268293) internal successors, (52), 46 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 11:03:42,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2022-10-16 11:03:42,916 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 20 [2022-10-16 11:03:42,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:03:42,917 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 52 transitions. [2022-10-16 11:03:42,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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 11:03:42,917 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2022-10-16 11:03:42,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 11:03:42,920 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:03:42,920 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:03:42,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 11:03:42,921 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 11:03:42,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:03:42,921 INFO L85 PathProgramCache]: Analyzing trace with hash 151894479, now seen corresponding path program 1 times [2022-10-16 11:03:42,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:03:42,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517905252] [2022-10-16 11:03:42,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:03:42,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:03:42,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:03:43,057 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 11:03:43,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:03:43,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517905252] [2022-10-16 11:03:43,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517905252] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:03:43,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:03:43,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:03:43,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978119442] [2022-10-16 11:03:43,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:03:43,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:03:43,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:03:43,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:03:43,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:03:43,061 INFO L87 Difference]: Start difference. First operand 47 states and 52 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 11:03:43,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:03:43,103 INFO L93 Difference]: Finished difference Result 48 states and 53 transitions. [2022-10-16 11:03:43,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:03:43,104 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 25 [2022-10-16 11:03:43,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:03:43,104 INFO L225 Difference]: With dead ends: 48 [2022-10-16 11:03:43,105 INFO L226 Difference]: Without dead ends: 47 [2022-10-16 11:03:43,105 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 11:03:43,109 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 25 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:03:43,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 44 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:03:43,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-10-16 11:03:43,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 46. [2022-10-16 11:03:43,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 41 states have (on average 1.2439024390243902) internal successors, (51), 45 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:03:43,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 51 transitions. [2022-10-16 11:03:43,133 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 51 transitions. Word has length 25 [2022-10-16 11:03:43,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:03:43,134 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 51 transitions. [2022-10-16 11:03:43,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 11:03:43,134 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 51 transitions. [2022-10-16 11:03:43,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-16 11:03:43,138 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:03:43,139 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:03:43,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 11:03:43,139 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 11:03:43,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:03:43,145 INFO L85 PathProgramCache]: Analyzing trace with hash 412228478, now seen corresponding path program 1 times [2022-10-16 11:03:43,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:03:43,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952360106] [2022-10-16 11:03:43,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:03:43,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:03:43,183 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:03:43,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1289344531] [2022-10-16 11:03:43,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:03:43,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:03:43,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:03:43,185 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 11:03:43,209 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 11:03:43,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:03:43,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 11:03:43,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:03:43,342 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 11:03:43,343 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:03:43,443 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 11:03:43,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:03:43,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952360106] [2022-10-16 11:03:43,444 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:03:43,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1289344531] [2022-10-16 11:03:43,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1289344531] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:03:43,444 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:03:43,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2022-10-16 11:03:43,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723359790] [2022-10-16 11:03:43,445 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:03:43,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 11:03:43,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:03:43,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 11:03:43,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2022-10-16 11:03:43,447 INFO L87 Difference]: Start difference. First operand 46 states and 51 transitions. Second operand has 16 states, 16 states have (on average 2.5) internal successors, (40), 16 states have internal predecessors, (40), 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 11:03:43,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:03:43,649 INFO L93 Difference]: Finished difference Result 107 states and 121 transitions. [2022-10-16 11:03:43,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 11:03:43,650 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.5) internal successors, (40), 16 states have internal predecessors, (40), 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 11:03:43,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:03:43,651 INFO L225 Difference]: With dead ends: 107 [2022-10-16 11:03:43,652 INFO L226 Difference]: Without dead ends: 76 [2022-10-16 11:03:43,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=151, Invalid=311, Unknown=0, NotChecked=0, Total=462 [2022-10-16 11:03:43,653 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 178 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:03:43,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 129 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:03:43,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-10-16 11:03:43,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 62. [2022-10-16 11:03:43,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 57 states have (on average 1.1754385964912282) internal successors, (67), 61 states have internal predecessors, (67), 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 11:03:43,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 67 transitions. [2022-10-16 11:03:43,663 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 67 transitions. Word has length 26 [2022-10-16 11:03:43,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:03:43,663 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 67 transitions. [2022-10-16 11:03:43,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.5) internal successors, (40), 16 states have internal predecessors, (40), 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 11:03:43,664 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 67 transitions. [2022-10-16 11:03:43,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-16 11:03:43,666 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:03:43,666 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:03:43,698 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 11:03:43,881 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 11:03:43,882 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 11:03:43,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:03:43,883 INFO L85 PathProgramCache]: Analyzing trace with hash 663659406, now seen corresponding path program 2 times [2022-10-16 11:03:43,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:03:43,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221065293] [2022-10-16 11:03:43,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:03:43,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:03:43,921 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:03:43,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1988670911] [2022-10-16 11:03:43,922 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:03:43,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:03:43,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:03:43,923 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 11:03:43,945 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 11:03:44,021 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 11:03:44,021 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:03:44,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 11:03:44,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:03:44,197 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 11:03:44,197 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:03:44,495 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 11:03:44,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:03:44,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221065293] [2022-10-16 11:03:44,496 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:03:44,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988670911] [2022-10-16 11:03:44,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1988670911] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:03:44,496 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:03:44,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2022-10-16 11:03:44,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116578194] [2022-10-16 11:03:44,497 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:03:44,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-10-16 11:03:44,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:03:44,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-10-16 11:03:44,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=720, Unknown=0, NotChecked=0, Total=992 [2022-10-16 11:03:44,499 INFO L87 Difference]: Start difference. First operand 62 states and 67 transitions. Second operand has 32 states, 32 states have (on average 2.25) internal successors, (72), 32 states have internal predecessors, (72), 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 11:03:44,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:03:44,876 INFO L93 Difference]: Finished difference Result 139 states and 157 transitions. [2022-10-16 11:03:44,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-16 11:03:44,877 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 2.25) internal successors, (72), 32 states have internal predecessors, (72), 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 42 [2022-10-16 11:03:44,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:03:44,878 INFO L225 Difference]: With dead ends: 139 [2022-10-16 11:03:44,878 INFO L226 Difference]: Without dead ends: 108 [2022-10-16 11:03:44,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=623, Invalid=1447, Unknown=0, NotChecked=0, Total=2070 [2022-10-16 11:03:44,881 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 172 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:03:44,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 123 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:03:44,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2022-10-16 11:03:44,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 94. [2022-10-16 11:03:44,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 89 states have (on average 1.1123595505617978) internal successors, (99), 93 states have internal predecessors, (99), 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 11:03:44,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 99 transitions. [2022-10-16 11:03:44,889 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 99 transitions. Word has length 42 [2022-10-16 11:03:44,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:03:44,889 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 99 transitions. [2022-10-16 11:03:44,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 2.25) internal successors, (72), 32 states have internal predecessors, (72), 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 11:03:44,890 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 99 transitions. [2022-10-16 11:03:44,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-16 11:03:44,892 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:03:44,892 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:03:44,926 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 11:03:45,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:03:45,108 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 11:03:45,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:03:45,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1619962962, now seen corresponding path program 3 times [2022-10-16 11:03:45,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:03:45,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682639169] [2022-10-16 11:03:45,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:03:45,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:03:45,151 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:03:45,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [501021700] [2022-10-16 11:03:45,151 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 11:03:45,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:03:45,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:03:45,152 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 11:03:45,173 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 11:03:45,239 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 11:03:45,239 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:03:45,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 11:03:45,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:03:45,275 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-10-16 11:03:45,275 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:03:45,303 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-10-16 11:03:45,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:03:45,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682639169] [2022-10-16 11:03:45,303 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:03:45,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [501021700] [2022-10-16 11:03:45,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [501021700] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:03:45,304 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:03:45,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-10-16 11:03:45,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344979464] [2022-10-16 11:03:45,305 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:03:45,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 11:03:45,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:03:45,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 11:03:45,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:03:45,306 INFO L87 Difference]: Start difference. First operand 94 states and 99 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:03:45,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:03:45,394 INFO L93 Difference]: Finished difference Result 132 states and 142 transitions. [2022-10-16 11:03:45,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 11:03:45,395 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-10-16 11:03:45,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:03:45,396 INFO L225 Difference]: With dead ends: 132 [2022-10-16 11:03:45,396 INFO L226 Difference]: Without dead ends: 117 [2022-10-16 11:03:45,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2022-10-16 11:03:45,397 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 87 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:03:45,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 84 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:03:45,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2022-10-16 11:03:45,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 102. [2022-10-16 11:03:45,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 97 states have (on average 1.1237113402061856) internal successors, (109), 101 states have internal predecessors, (109), 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 11:03:45,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 109 transitions. [2022-10-16 11:03:45,405 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 109 transitions. Word has length 74 [2022-10-16 11:03:45,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:03:45,405 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 109 transitions. [2022-10-16 11:03:45,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:03:45,406 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 109 transitions. [2022-10-16 11:03:45,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-16 11:03:45,407 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:03:45,407 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 11:03:45,438 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 11:03:45,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:03:45,621 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 11:03:45,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:03:45,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1618429814, now seen corresponding path program 1 times [2022-10-16 11:03:45,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:03:45,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661803742] [2022-10-16 11:03:45,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:03:45,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:03:45,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:03:46,927 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 11:03:46,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:03:46,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661803742] [2022-10-16 11:03:46,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661803742] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:03:46,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663668416] [2022-10-16 11:03:46,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:03:46,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:03:46,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:03:46,931 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 11:03:46,955 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 11:03:47,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:03:47,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 32 conjunts are in the unsatisfiable core [2022-10-16 11:03:47,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:03:47,200 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 11:03:47,201 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:03:48,182 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 11:03:48,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663668416] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:03:48,183 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:03:48,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-10-16 11:03:48,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492266515] [2022-10-16 11:03:48,183 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:03:48,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-10-16 11:03:48,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:03:48,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-10-16 11:03:48,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-10-16 11:03:48,188 INFO L87 Difference]: Start difference. First operand 102 states and 109 transitions. Second operand has 66 states, 66 states have (on average 2.0757575757575757) internal successors, (137), 66 states have internal predecessors, (137), 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 11:03:49,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:03:49,204 INFO L93 Difference]: Finished difference Result 219 states and 249 transitions. [2022-10-16 11:03:49,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-10-16 11:03:49,204 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 2.0757575757575757) internal successors, (137), 66 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-10-16 11:03:49,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:03:49,207 INFO L225 Difference]: With dead ends: 219 [2022-10-16 11:03:49,207 INFO L226 Difference]: Without dead ends: 180 [2022-10-16 11:03:49,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1991 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=2595, Invalid=6525, Unknown=0, NotChecked=0, Total=9120 [2022-10-16 11:03:49,213 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 279 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 11:03:49,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 213 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 11:03:49,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-10-16 11:03:49,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 166. [2022-10-16 11:03:49,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 161 states have (on average 1.0745341614906831) internal successors, (173), 165 states have internal predecessors, (173), 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 11:03:49,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 173 transitions. [2022-10-16 11:03:49,223 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 173 transitions. Word has length 74 [2022-10-16 11:03:49,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:03:49,223 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 173 transitions. [2022-10-16 11:03:49,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 2.0757575757575757) internal successors, (137), 66 states have internal predecessors, (137), 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 11:03:49,224 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 173 transitions. [2022-10-16 11:03:49,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-10-16 11:03:49,226 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:03:49,227 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 11:03:49,265 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 11:03:49,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:03:49,443 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 11:03:49,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:03:49,444 INFO L85 PathProgramCache]: Analyzing trace with hash -571172662, now seen corresponding path program 2 times [2022-10-16 11:03:49,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:03:49,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610770263] [2022-10-16 11:03:49,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:03:49,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:03:49,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:03:53,709 INFO L134 CoverageAnalysis]: Checked inductivity of 1896 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 11:03:53,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:03:53,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610770263] [2022-10-16 11:03:53,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610770263] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:03:53,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568909185] [2022-10-16 11:03:53,710 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:03:53,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:03:53,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:03:53,712 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 11:03:53,714 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 11:03:53,881 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 11:03:53,882 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:03:53,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 597 conjuncts, 64 conjunts are in the unsatisfiable core [2022-10-16 11:03:53,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:03:54,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1896 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 11:03:54,127 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:03:57,847 INFO L134 CoverageAnalysis]: Checked inductivity of 1896 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 11:03:57,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1568909185] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:03:57,847 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:03:57,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2022-10-16 11:03:57,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482504893] [2022-10-16 11:03:57,848 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:03:57,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-10-16 11:03:57,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:03:57,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-10-16 11:03:57,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2022-10-16 11:03:57,857 INFO L87 Difference]: Start difference. First operand 166 states and 173 transitions. Second operand has 130 states, 130 states have (on average 2.0384615384615383) internal successors, (265), 130 states have internal predecessors, (265), 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 11:04:01,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:04:01,314 INFO L93 Difference]: Finished difference Result 347 states and 393 transitions. [2022-10-16 11:04:01,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-10-16 11:04:01,315 INFO L78 Accepts]: Start accepts. Automaton has has 130 states, 130 states have (on average 2.0384615384615383) internal successors, (265), 130 states have internal predecessors, (265), 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 138 [2022-10-16 11:04:01,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:04:01,317 INFO L225 Difference]: With dead ends: 347 [2022-10-16 11:04:01,317 INFO L226 Difference]: Without dead ends: 308 [2022-10-16 11:04:01,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8087 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=10307, Invalid=26365, Unknown=0, NotChecked=0, Total=36672 [2022-10-16 11:04:01,328 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 717 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 717 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 11:04:01,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [717 Valid, 174 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 11:04:01,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2022-10-16 11:04:01,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 294. [2022-10-16 11:04:01,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 289 states have (on average 1.041522491349481) internal successors, (301), 293 states have internal predecessors, (301), 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 11:04:01,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 301 transitions. [2022-10-16 11:04:01,342 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 301 transitions. Word has length 138 [2022-10-16 11:04:01,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:04:01,343 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 301 transitions. [2022-10-16 11:04:01,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 2.0384615384615383) internal successors, (265), 130 states have internal predecessors, (265), 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 11:04:01,343 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 301 transitions. [2022-10-16 11:04:01,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-10-16 11:04:01,347 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:04:01,348 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 11:04:01,380 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 11:04:01,563 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,SelfDestructingSolverStorable11 [2022-10-16 11:04:01,564 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 11:04:01,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:04:01,565 INFO L85 PathProgramCache]: Analyzing trace with hash -848930486, now seen corresponding path program 3 times [2022-10-16 11:04:01,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:04:01,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320545439] [2022-10-16 11:04:01,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:04:01,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:04:01,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:04:15,541 INFO L134 CoverageAnalysis]: Checked inductivity of 7880 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 11:04:15,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:04:15,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320545439] [2022-10-16 11:04:15,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320545439] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:04:15,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366423433] [2022-10-16 11:04:15,542 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 11:04:15,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:04:15,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:04:15,543 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 11:04:15,544 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 11:04:15,713 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 11:04:15,713 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:04:15,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 11:04:15,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:04:15,852 INFO L134 CoverageAnalysis]: Checked inductivity of 7880 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 7875 trivial. 0 not checked. [2022-10-16 11:04:15,853 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:04:15,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366423433] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:04:15,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:04:15,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [129] total 131 [2022-10-16 11:04:15,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504613091] [2022-10-16 11:04:15,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:04:15,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:04:15,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:04:15,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:04:15,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4229, Invalid=12801, Unknown=0, NotChecked=0, Total=17030 [2022-10-16 11:04:15,857 INFO L87 Difference]: Start difference. First operand 294 states and 301 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 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 11:04:15,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:04:15,949 INFO L93 Difference]: Finished difference Result 294 states and 301 transitions. [2022-10-16 11:04:15,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:04:15,949 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 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 266 [2022-10-16 11:04:15,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:04:15,951 INFO L225 Difference]: With dead ends: 294 [2022-10-16 11:04:15,951 INFO L226 Difference]: Without dead ends: 293 [2022-10-16 11:04:15,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4156 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=4233, Invalid=13059, Unknown=0, NotChecked=0, Total=17292 [2022-10-16 11:04:15,955 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 24 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 40 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 11:04:15,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 40 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:04:15,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2022-10-16 11:04:15,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2022-10-16 11:04:15,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 289 states have (on average 1.0346020761245676) internal successors, (299), 292 states have internal predecessors, (299), 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 11:04:15,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 299 transitions. [2022-10-16 11:04:15,972 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 299 transitions. Word has length 266 [2022-10-16 11:04:15,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:04:15,973 INFO L495 AbstractCegarLoop]: Abstraction has 293 states and 299 transitions. [2022-10-16 11:04:15,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 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 11:04:15,974 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 299 transitions. [2022-10-16 11:04:15,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-10-16 11:04:15,977 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:04:15,978 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:04:16,022 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 11:04:16,191 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,SelfDestructingSolverStorable12 [2022-10-16 11:04:16,191 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 11:04:16,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:04:16,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1542836562, now seen corresponding path program 4 times [2022-10-16 11:04:16,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:04:16,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069718163] [2022-10-16 11:04:16,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:04:16,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:04:16,330 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:04:16,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2021611049] [2022-10-16 11:04:16,331 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 11:04:16,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:04:16,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:04:16,332 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 11:04:16,359 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 11:04:16,704 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 11:04:16,704 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:04:16,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 1171 conjuncts, 128 conjunts are in the unsatisfiable core [2022-10-16 11:04:16,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:04:22,279 INFO L134 CoverageAnalysis]: Checked inductivity of 7893 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-10-16 11:04:22,280 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:04:37,377 INFO L134 CoverageAnalysis]: Checked inductivity of 7893 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-10-16 11:04:37,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:04:37,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069718163] [2022-10-16 11:04:37,378 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:04:37,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021611049] [2022-10-16 11:04:37,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2021611049] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:04:37,378 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:04:37,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [129, 129] total 256 [2022-10-16 11:04:37,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948253761] [2022-10-16 11:04:37,379 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:04:37,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 256 states [2022-10-16 11:04:37,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:04:37,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 256 interpolants. [2022-10-16 11:04:37,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16512, Invalid=48768, Unknown=0, NotChecked=0, Total=65280 [2022-10-16 11:04:37,393 INFO L87 Difference]: Start difference. First operand 293 states and 299 transitions. Second operand has 256 states, 256 states have (on average 2.03125) internal successors, (520), 256 states have internal predecessors, (520), 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 11:04:51,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:04:51,788 INFO L93 Difference]: Finished difference Result 601 states and 677 transitions. [2022-10-16 11:04:51,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 255 states. [2022-10-16 11:04:51,789 INFO L78 Accepts]: Start accepts. Automaton has has 256 states, 256 states have (on average 2.03125) internal successors, (520), 256 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 276 [2022-10-16 11:04:51,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:04:51,792 INFO L225 Difference]: With dead ends: 601 [2022-10-16 11:04:51,792 INFO L226 Difference]: Without dead ends: 563 [2022-10-16 11:04:51,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 676 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 380 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31438 ImplicationChecksByTransitivity, 29.8s TimeCoverageRelationStatistics Valid=40831, Invalid=104711, Unknown=0, NotChecked=0, Total=145542 [2022-10-16 11:04:51,802 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 1241 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 870 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1241 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 11:04:51,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1241 Valid, 183 Invalid, 951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 870 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-16 11:04:51,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2022-10-16 11:04:51,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 549. [2022-10-16 11:04:51,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 545 states have (on average 1.018348623853211) internal successors, (555), 548 states have internal predecessors, (555), 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 11:04:51,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 555 transitions. [2022-10-16 11:04:51,825 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 555 transitions. Word has length 276 [2022-10-16 11:04:51,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:04:51,826 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 555 transitions. [2022-10-16 11:04:51,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 256 states, 256 states have (on average 2.03125) internal successors, (520), 256 states have internal predecessors, (520), 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 11:04:51,827 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 555 transitions. [2022-10-16 11:04:51,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2022-10-16 11:04:51,838 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:04:51,838 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 127, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:04:51,872 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 11:04:52,052 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,SelfDestructingSolverStorable13 [2022-10-16 11:04:52,053 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 11:04:52,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:04:52,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1772646318, now seen corresponding path program 5 times [2022-10-16 11:04:52,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:04:52,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837851583] [2022-10-16 11:04:52,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:04:52,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:04:52,282 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:04:52,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [959777518] [2022-10-16 11:04:52,282 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 11:04:52,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:04:52,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:04:52,286 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 11:04:52,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process