/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/bitvector/jain_5-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-09 22:17:46,163 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-09 22:17:46,165 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-09 22:17:46,224 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-09 22:17:46,225 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-09 22:17:46,227 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-09 22:17:46,230 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-09 22:17:46,235 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-09 22:17:46,236 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-09 22:17:46,240 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-09 22:17:46,240 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-09 22:17:46,241 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-09 22:17:46,241 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-09 22:17:46,243 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-09 22:17:46,243 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-09 22:17:46,244 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-09 22:17:46,245 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-09 22:17:46,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-09 22:17:46,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-09 22:17:46,252 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-09 22:17:46,253 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-09 22:17:46,259 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-09 22:17:46,260 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-09 22:17:46,261 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-09 22:17:46,262 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-09 22:17:46,263 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-09 22:17:46,263 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-09 22:17:46,264 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-09 22:17:46,264 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-09 22:17:46,265 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-09 22:17:46,265 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-09 22:17:46,265 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-09 22:17:46,279 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-09 22:17:46,280 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-09 22:17:46,281 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-09 22:17:46,281 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-09 22:17:46,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-09 22:17:46,281 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-09 22:17:46,282 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-09 22:17:46,282 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-09 22:17:46,282 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-09 22:17:46,283 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf [2022-01-09 22:17:46,310 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-09 22:17:46,310 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-09 22:17:46,311 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-09 22:17:46,311 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-09 22:17:46,311 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-09 22:17:46,311 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-09 22:17:46,312 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-09 22:17:46,312 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-09 22:17:46,312 INFO L138 SettingsManager]: * Use SBE=true [2022-01-09 22:17:46,312 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-09 22:17:46,313 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-09 22:17:46,313 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-09 22:17:46,313 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-09 22:17:46,313 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-09 22:17:46,313 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-09 22:17:46,313 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-09 22:17:46,313 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-09 22:17:46,313 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-09 22:17:46,313 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-09 22:17:46,314 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-09 22:17:46,314 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-09 22:17:46,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-09 22:17:46,314 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-09 22:17:46,314 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-09 22:17:46,314 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-09 22:17:46,314 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-09 22:17:46,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-09 22:17:46,314 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-09 22:17:46,314 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-09 22:17:46,314 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-09 22:17:46,315 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-09 22:17:46,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-09 22:17:46,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-09 22:17:46,533 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-09 22:17:46,534 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-09 22:17:46,537 INFO L275 PluginConnector]: CDTParser initialized [2022-01-09 22:17:46,538 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/jain_5-2.c [2022-01-09 22:17:46,581 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fec7bdfc0/dd6cc6ffc6bc4740bb7fbcb1e6ec6de7/FLAGa4a00fe7d [2022-01-09 22:17:46,938 INFO L306 CDTParser]: Found 1 translation units. [2022-01-09 22:17:46,938 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/jain_5-2.c [2022-01-09 22:17:46,946 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fec7bdfc0/dd6cc6ffc6bc4740bb7fbcb1e6ec6de7/FLAGa4a00fe7d [2022-01-09 22:17:46,957 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fec7bdfc0/dd6cc6ffc6bc4740bb7fbcb1e6ec6de7 [2022-01-09 22:17:46,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-09 22:17:46,960 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-09 22:17:46,961 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-09 22:17:46,961 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-09 22:17:46,964 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-09 22:17:46,964 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 10:17:46" (1/1) ... [2022-01-09 22:17:46,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a6db27e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:17:46, skipping insertion in model container [2022-01-09 22:17:46,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 10:17:46" (1/1) ... [2022-01-09 22:17:46,970 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-09 22:17:46,984 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-09 22:17:47,113 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/jain_5-2.c[665,678] [2022-01-09 22:17:47,131 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-09 22:17:47,138 INFO L203 MainTranslator]: Completed pre-run [2022-01-09 22:17:47,149 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/jain_5-2.c[665,678] [2022-01-09 22:17:47,151 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-09 22:17:47,160 INFO L208 MainTranslator]: Completed translation [2022-01-09 22:17:47,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:17:47 WrapperNode [2022-01-09 22:17:47,162 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-09 22:17:47,163 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-09 22:17:47,164 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-09 22:17:47,164 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-09 22:17:47,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:17:47" (1/1) ... [2022-01-09 22:17:47,176 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:17:47" (1/1) ... [2022-01-09 22:17:47,190 INFO L137 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 29 [2022-01-09 22:17:47,190 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-09 22:17:47,191 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-09 22:17:47,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-09 22:17:47,191 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-09 22:17:47,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:17:47" (1/1) ... [2022-01-09 22:17:47,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:17:47" (1/1) ... [2022-01-09 22:17:47,197 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:17:47" (1/1) ... [2022-01-09 22:17:47,198 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:17:47" (1/1) ... [2022-01-09 22:17:47,200 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:17:47" (1/1) ... [2022-01-09 22:17:47,204 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:17:47" (1/1) ... [2022-01-09 22:17:47,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:17:47" (1/1) ... [2022-01-09 22:17:47,210 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-09 22:17:47,211 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-09 22:17:47,211 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-09 22:17:47,211 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-09 22:17:47,212 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:17:47" (1/1) ... [2022-01-09 22:17:47,216 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-09 22:17:47,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-09 22:17:47,240 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) [2022-01-09 22:17:47,289 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 [2022-01-09 22:17:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-09 22:17:47,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-09 22:17:47,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-09 22:17:47,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-09 22:17:47,353 INFO L234 CfgBuilder]: Building ICFG [2022-01-09 22:17:47,354 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-09 22:17:47,424 INFO L275 CfgBuilder]: Performing block encoding [2022-01-09 22:17:47,429 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-09 22:17:47,429 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-09 22:17:47,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 10:17:47 BoogieIcfgContainer [2022-01-09 22:17:47,431 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-09 22:17:47,432 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-09 22:17:47,432 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-09 22:17:47,438 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-09 22:17:47,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 10:17:46" (1/3) ... [2022-01-09 22:17:47,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a32c08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 10:17:47, skipping insertion in model container [2022-01-09 22:17:47,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:17:47" (2/3) ... [2022-01-09 22:17:47,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a32c08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 10:17:47, skipping insertion in model container [2022-01-09 22:17:47,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 10:17:47" (3/3) ... [2022-01-09 22:17:47,440 INFO L111 eAbstractionObserver]: Analyzing ICFG jain_5-2.c [2022-01-09 22:17:47,449 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-09 22:17:47,449 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-09 22:17:47,483 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-09 22:17:47,488 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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, mLoopAccelerationTechnique=FAST_UPR [2022-01-09 22:17:47,489 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-09 22:17:47,498 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 22:17:47,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-01-09 22:17:47,501 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 22:17:47,501 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-01-09 22:17:47,501 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 22:17:47,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 22:17:47,505 INFO L85 PathProgramCache]: Analyzing trace with hash 28699754, now seen corresponding path program 1 times [2022-01-09 22:17:47,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 22:17:47,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977144300] [2022-01-09 22:17:47,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 22:17:47,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 22:17:47,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 22:17:47,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-09 22:17:47,645 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 22:17:47,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977144300] [2022-01-09 22:17:47,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977144300] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-09 22:17:47,646 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-09 22:17:47,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-09 22:17:47,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631755025] [2022-01-09 22:17:47,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-09 22:17:47,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-09 22:17:47,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 22:17:47,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-09 22:17:47,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-09 22:17:47,682 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) 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) [2022-01-09 22:17:47,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 22:17:47,702 INFO L93 Difference]: Finished difference Result 18 states and 26 transitions. [2022-01-09 22:17:47,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-09 22:17:47,704 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) 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 [2022-01-09 22:17:47,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 22:17:47,730 INFO L225 Difference]: With dead ends: 18 [2022-01-09 22:17:47,730 INFO L226 Difference]: Without dead ends: 9 [2022-01-09 22:17:47,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-09 22:17:47,734 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-09 22:17:47,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-09 22:17:47,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-01-09 22:17:47,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-01-09 22:17:47,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 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) [2022-01-09 22:17:47,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-01-09 22:17:47,755 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-01-09 22:17:47,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 22:17:47,755 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-01-09 22:17:47,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) 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) [2022-01-09 22:17:47,756 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-01-09 22:17:47,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-01-09 22:17:47,756 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 22:17:47,756 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-01-09 22:17:47,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-09 22:17:47,757 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 22:17:47,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 22:17:47,757 INFO L85 PathProgramCache]: Analyzing trace with hash 300686882, now seen corresponding path program 1 times [2022-01-09 22:17:47,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 22:17:47,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477826431] [2022-01-09 22:17:47,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 22:17:47,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 22:17:47,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 22:17:47,867 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-09 22:17:47,867 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 22:17:47,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477826431] [2022-01-09 22:17:47,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477826431] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-09 22:17:47,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1895025016] [2022-01-09 22:17:47,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 22:17:47,868 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 22:17:47,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-09 22:17:47,884 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) [2022-01-09 22:17:47,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-09 22:17:47,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 22:17:47,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 13 conjunts are in the unsatisfiable core [2022-01-09 22:17:47,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-09 22:17:48,177 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-09 22:17:48,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-09 22:17:48,318 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-09 22:17:48,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1895025016] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-09 22:17:48,319 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-09 22:17:48,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-01-09 22:17:48,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147156058] [2022-01-09 22:17:48,320 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-09 22:17:48,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-09 22:17:48,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 22:17:48,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-09 22:17:48,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-01-09 22:17:48,321 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 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) [2022-01-09 22:17:48,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 22:17:48,410 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2022-01-09 22:17:48,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-09 22:17:48,410 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 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 8 [2022-01-09 22:17:48,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 22:17:48,411 INFO L225 Difference]: With dead ends: 22 [2022-01-09 22:17:48,411 INFO L226 Difference]: Without dead ends: 20 [2022-01-09 22:17:48,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-01-09 22:17:48,414 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 13 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-09 22:17:48,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 25 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-09 22:17:48,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-01-09 22:17:48,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2022-01-09 22:17:48,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 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) [2022-01-09 22:17:48,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-01-09 22:17:48,421 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 8 [2022-01-09 22:17:48,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 22:17:48,421 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-01-09 22:17:48,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 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) [2022-01-09 22:17:48,422 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-01-09 22:17:48,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-09 22:17:48,422 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 22:17:48,422 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1] [2022-01-09 22:17:48,441 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-09 22:17:48,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 22:17:48,639 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 22:17:48,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 22:17:48,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1156434326, now seen corresponding path program 2 times [2022-01-09 22:17:48,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 22:17:48,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127093308] [2022-01-09 22:17:48,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 22:17:48,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 22:17:48,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 22:17:48,781 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-09 22:17:48,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 22:17:48,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127093308] [2022-01-09 22:17:48,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127093308] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-09 22:17:48,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475496853] [2022-01-09 22:17:48,783 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-09 22:17:48,783 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 22:17:48,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-09 22:17:48,785 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) [2022-01-09 22:17:48,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-09 22:17:48,832 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-09 22:17:48,832 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-09 22:17:48,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 25 conjunts are in the unsatisfiable core [2022-01-09 22:17:48,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-09 22:17:49,041 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-09 22:17:49,041 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-09 22:17:49,156 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-09 22:17:49,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1475496853] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-09 22:17:49,158 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-09 22:17:49,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2022-01-09 22:17:49,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895557524] [2022-01-09 22:17:49,158 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-09 22:17:49,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-09 22:17:49,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 22:17:49,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-09 22:17:49,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2022-01-09 22:17:49,160 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 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) [2022-01-09 22:17:53,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 22:17:53,260 INFO L93 Difference]: Finished difference Result 40 states and 45 transitions. [2022-01-09 22:17:53,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-09 22:17:53,262 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 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) Word has length 17 [2022-01-09 22:17:53,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 22:17:53,262 INFO L225 Difference]: With dead ends: 40 [2022-01-09 22:17:53,262 INFO L226 Difference]: Without dead ends: 38 [2022-01-09 22:17:53,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 22 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=177, Invalid=525, Unknown=0, NotChecked=0, Total=702 [2022-01-09 22:17:53,264 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 31 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-09 22:17:53,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 63 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-09 22:17:53,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-01-09 22:17:53,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2022-01-09 22:17:53,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.0285714285714285) internal successors, (36), 35 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 22:17:53,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2022-01-09 22:17:53,273 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 17 [2022-01-09 22:17:53,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 22:17:53,273 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2022-01-09 22:17:53,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 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) [2022-01-09 22:17:53,274 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2022-01-09 22:17:53,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-09 22:17:53,275 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 22:17:53,275 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1, 1] [2022-01-09 22:17:53,306 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-09 22:17:53,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-01-09 22:17:53,496 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 22:17:53,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 22:17:53,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1353352554, now seen corresponding path program 3 times [2022-01-09 22:17:53,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 22:17:53,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182300442] [2022-01-09 22:17:53,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 22:17:53,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 22:17:53,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 22:17:53,714 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-09 22:17:53,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 22:17:53,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182300442] [2022-01-09 22:17:53,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182300442] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-09 22:17:53,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [98562024] [2022-01-09 22:17:53,715 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-09 22:17:53,715 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 22:17:53,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-09 22:17:53,716 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) [2022-01-09 22:17:53,717 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-09 22:17:54,257 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-01-09 22:17:54,257 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-09 22:17:54,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 49 conjunts are in the unsatisfiable core [2022-01-09 22:17:54,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-09 22:17:54,694 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-09 22:17:54,694 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-09 22:17:55,033 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-09 22:17:55,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [98562024] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-09 22:17:55,034 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-09 22:17:55,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 36 [2022-01-09 22:17:55,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359309973] [2022-01-09 22:17:55,034 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-09 22:17:55,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-01-09 22:17:55,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 22:17:55,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-01-09 22:17:55,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=229, Invalid=1031, Unknown=0, NotChecked=0, Total=1260 [2022-01-09 22:17:55,035 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand has 36 states, 36 states have (on average 2.75) internal successors, (99), 36 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) [2022-01-09 22:17:57,296 WARN L838 $PredicateComparison]: unable to prove that (and (not (= (mod (+ |c_ULTIMATE.start_main_~x~0#1| (* |c_ULTIMATE.start_main_~y~0#1| 11) 220) 4294967296) 30)) (not (= 30 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 144 (* |c_ULTIMATE.start_main_~y~0#1| 9)) 4294967296))) (not (= 30 (mod (+ |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (not (= 30 (mod (+ 112 |c_ULTIMATE.start_main_~x~0#1| (* |c_ULTIMATE.start_main_~y~0#1| 8)) 4294967296))) (not (= (mod (+ 40 |c_ULTIMATE.start_main_~x~0#1| (* |c_ULTIMATE.start_main_~y~0#1| 5)) 4294967296) 30)) (not (= (mod (+ |c_ULTIMATE.start_main_~x~0#1| (* |c_ULTIMATE.start_main_~y~0#1| 2) 4) 4294967296) 30)) (not (= (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 10) |c_ULTIMATE.start_main_~x~0#1| 180) 4294967296) 30)) (<= 1 |c_ULTIMATE.start___VERIFIER_assert_~cond#1|) (not (= (mod (+ |c_ULTIMATE.start_main_~x~0#1| (* |c_ULTIMATE.start_main_~y~0#1| 6) 60) 4294967296) 30)) (not (= (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12 (* |c_ULTIMATE.start_main_~y~0#1| 3)) 4294967296) 30)) (not (= 30 (mod (+ |c_ULTIMATE.start_main_~x~0#1| (* |c_ULTIMATE.start_main_~y~0#1| 4) 24) 4294967296))) (not (= (mod (+ |c_ULTIMATE.start_main_~x~0#1| (* |c_ULTIMATE.start_main_~y~0#1| 7) 84) 4294967296) 30))) is different from false [2022-01-09 22:17:59,305 WARN L838 $PredicateComparison]: unable to prove that (and (not (= 30 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 144 (* |c_ULTIMATE.start_main_~y~0#1| 9)) 4294967296))) (not (= 30 (mod (+ |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (not (= 30 (mod (+ 112 |c_ULTIMATE.start_main_~x~0#1| (* |c_ULTIMATE.start_main_~y~0#1| 8)) 4294967296))) (not (= (mod (+ 40 |c_ULTIMATE.start_main_~x~0#1| (* |c_ULTIMATE.start_main_~y~0#1| 5)) 4294967296) 30)) (not (= (mod (+ |c_ULTIMATE.start_main_~x~0#1| (* |c_ULTIMATE.start_main_~y~0#1| 2) 4) 4294967296) 30)) (not (= (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 10) |c_ULTIMATE.start_main_~x~0#1| 180) 4294967296) 30)) (not (= (mod (+ |c_ULTIMATE.start_main_~x~0#1| (* |c_ULTIMATE.start_main_~y~0#1| 6) 60) 4294967296) 30)) (not (= (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12 (* |c_ULTIMATE.start_main_~y~0#1| 3)) 4294967296) 30)) (not (= 30 (mod (+ |c_ULTIMATE.start_main_~x~0#1| (* |c_ULTIMATE.start_main_~y~0#1| 4) 24) 4294967296))) (not (= (mod (+ |c_ULTIMATE.start_main_~x~0#1| (* |c_ULTIMATE.start_main_~y~0#1| 7) 84) 4294967296) 30))) is different from false [2022-01-09 22:18:01,317 WARN L838 $PredicateComparison]: unable to prove that (and (not (= 30 (mod (+ |c_ULTIMATE.start_main_~x~0#1| 144 (* |c_ULTIMATE.start_main_~y~0#1| 9)) 4294967296))) (not (= 30 (mod (+ |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (not (= 30 (mod (+ 112 |c_ULTIMATE.start_main_~x~0#1| (* |c_ULTIMATE.start_main_~y~0#1| 8)) 4294967296))) (not (= (mod (+ 40 |c_ULTIMATE.start_main_~x~0#1| (* |c_ULTIMATE.start_main_~y~0#1| 5)) 4294967296) 30)) (not (= (mod (+ |c_ULTIMATE.start_main_~x~0#1| (* |c_ULTIMATE.start_main_~y~0#1| 2) 4) 4294967296) 30)) (<= 1 |c_ULTIMATE.start___VERIFIER_assert_~cond#1|) (not (= (mod (+ |c_ULTIMATE.start_main_~x~0#1| (* |c_ULTIMATE.start_main_~y~0#1| 6) 60) 4294967296) 30)) (not (= (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12 (* |c_ULTIMATE.start_main_~y~0#1| 3)) 4294967296) 30)) (not (= 30 (mod (+ |c_ULTIMATE.start_main_~x~0#1| (* |c_ULTIMATE.start_main_~y~0#1| 4) 24) 4294967296))) (not (= (mod (+ |c_ULTIMATE.start_main_~x~0#1| (* |c_ULTIMATE.start_main_~y~0#1| 7) 84) 4294967296) 30))) is different from false