/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_2-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-09 22:17:45,007 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-09 22:17:45,008 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-09 22:17:45,075 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-09 22:17:45,076 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-09 22:17:45,077 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-09 22:17:45,078 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-09 22:17:45,079 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-09 22:17:45,081 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-09 22:17:45,081 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-09 22:17:45,082 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-09 22:17:45,083 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-09 22:17:45,083 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-09 22:17:45,084 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-09 22:17:45,085 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-09 22:17:45,086 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-09 22:17:45,086 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-09 22:17:45,087 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-09 22:17:45,088 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-09 22:17:45,090 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-09 22:17:45,091 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-09 22:17:45,092 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-09 22:17:45,093 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-09 22:17:45,094 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-09 22:17:45,096 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-09 22:17:45,096 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-09 22:17:45,096 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-09 22:17:45,097 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-09 22:17:45,097 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-09 22:17:45,098 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-09 22:17:45,098 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-09 22:17:45,099 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-09 22:17:45,100 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-09 22:17:45,100 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-09 22:17:45,101 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-09 22:17:45,101 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-09 22:17:45,102 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-09 22:17:45,102 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-09 22:17:45,102 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-09 22:17:45,103 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-09 22:17:45,104 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-09 22:17:45,105 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 22:17:45,121 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-09 22:17:45,121 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-09 22:17:45,121 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-09 22:17:45,122 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-09 22:17:45,122 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-09 22:17:45,122 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-09 22:17:45,123 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-09 22:17:45,123 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-09 22:17:45,123 INFO L138 SettingsManager]: * Use SBE=true [2022-01-09 22:17:45,124 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-09 22:17:45,124 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-09 22:17:45,125 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-09 22:17:45,125 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-09 22:17:45,125 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-09 22:17:45,125 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-09 22:17:45,125 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-09 22:17:45,125 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-09 22:17:45,125 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-09 22:17:45,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-09 22:17:45,126 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-09 22:17:45,126 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-09 22:17:45,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-09 22:17:45,126 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-09 22:17:45,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-09 22:17:45,127 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-09 22:17:45,127 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-09 22:17:45,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-09 22:17:45,127 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-09 22:17:45,127 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-09 22:17:45,127 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-09 22:17:45,128 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-09 22:17:45,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-09 22:17:45,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-09 22:17:45,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-09 22:17:45,322 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-09 22:17:45,326 INFO L275 PluginConnector]: CDTParser initialized [2022-01-09 22:17:45,327 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/jain_2-1.c [2022-01-09 22:17:45,391 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/092078f1a/870f2db1e21c48f2b58721dd903ec1c2/FLAG1a31fca07 [2022-01-09 22:17:45,671 INFO L306 CDTParser]: Found 1 translation units. [2022-01-09 22:17:45,672 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/jain_2-1.c [2022-01-09 22:17:45,676 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/092078f1a/870f2db1e21c48f2b58721dd903ec1c2/FLAG1a31fca07 [2022-01-09 22:17:46,116 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/092078f1a/870f2db1e21c48f2b58721dd903ec1c2 [2022-01-09 22:17:46,118 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-09 22:17:46,119 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-09 22:17:46,120 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-09 22:17:46,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-09 22:17:46,124 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-09 22:17:46,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 10:17:46" (1/1) ... [2022-01-09 22:17:46,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35bd31e9 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 22:17:46,125 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 10:17:46" (1/1) ... [2022-01-09 22:17:46,131 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-09 22:17:46,141 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-09 22:17:46,266 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_2-1.c[675,688] [2022-01-09 22:17:46,276 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-09 22:17:46,285 INFO L203 MainTranslator]: Completed pre-run [2022-01-09 22:17:46,311 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_2-1.c[675,688] [2022-01-09 22:17:46,328 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-09 22:17:46,339 INFO L208 MainTranslator]: Completed translation [2022-01-09 22:17:46,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:17:46 WrapperNode [2022-01-09 22:17:46,340 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-09 22:17:46,342 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-09 22:17:46,342 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-09 22:17:46,353 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-09 22:17:46,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:17:46" (1/1) ... [2022-01-09 22:17:46,368 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:17:46" (1/1) ... [2022-01-09 22:17:46,382 INFO L137 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 31 [2022-01-09 22:17:46,383 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-09 22:17:46,384 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-09 22:17:46,384 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-09 22:17:46,384 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-09 22:17:46,391 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:17:46" (1/1) ... [2022-01-09 22:17:46,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:17:46" (1/1) ... [2022-01-09 22:17:46,393 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:17:46" (1/1) ... [2022-01-09 22:17:46,393 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:17:46" (1/1) ... [2022-01-09 22:17:46,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:17:46" (1/1) ... [2022-01-09 22:17:46,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:17:46" (1/1) ... [2022-01-09 22:17:46,403 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:17:46" (1/1) ... [2022-01-09 22:17:46,404 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-09 22:17:46,405 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-09 22:17:46,405 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-09 22:17:46,405 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-09 22:17:46,406 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:17:46" (1/1) ... [2022-01-09 22:17:46,412 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-09 22:17:46,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-09 22:17:46,436 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 22:17:46,460 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 22:17:46,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-09 22:17:46,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-09 22:17:46,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-09 22:17:46,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-09 22:17:46,523 INFO L234 CfgBuilder]: Building ICFG [2022-01-09 22:17:46,524 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-09 22:17:46,591 INFO L275 CfgBuilder]: Performing block encoding [2022-01-09 22:17:46,595 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-09 22:17:46,596 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-09 22:17:46,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 10:17:46 BoogieIcfgContainer [2022-01-09 22:17:46,597 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-09 22:17:46,599 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-09 22:17:46,599 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-09 22:17:46,602 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-09 22:17:46,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 10:17:46" (1/3) ... [2022-01-09 22:17:46,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72c1a65a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 10:17:46, skipping insertion in model container [2022-01-09 22:17:46,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:17:46" (2/3) ... [2022-01-09 22:17:46,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72c1a65a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 10:17:46, skipping insertion in model container [2022-01-09 22:17:46,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 10:17:46" (3/3) ... [2022-01-09 22:17:46,604 INFO L111 eAbstractionObserver]: Analyzing ICFG jain_2-1.c [2022-01-09 22:17:46,610 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-09 22:17:46,610 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-09 22:17:46,650 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-09 22:17:46,659 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 22:17:46,659 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-09 22:17:46,673 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 22:17:46,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-01-09 22:17:46,676 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 22:17:46,677 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-01-09 22:17:46,677 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 22:17:46,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 22:17:46,682 INFO L85 PathProgramCache]: Analyzing trace with hash 28699754, now seen corresponding path program 1 times [2022-01-09 22:17:46,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 22:17:46,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844301030] [2022-01-09 22:17:46,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 22:17:46,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 22:17:46,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 22:17:46,879 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 22:17:46,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 22:17:46,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844301030] [2022-01-09 22:17:46,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844301030] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-09 22:17:46,880 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-09 22:17:46,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-09 22:17:46,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720132034] [2022-01-09 22:17:46,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-09 22:17:46,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-09 22:17:46,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 22:17:46,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-09 22:17:46,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-09 22:17:46,909 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 22:17:46,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 22:17:46,948 INFO L93 Difference]: Finished difference Result 18 states and 26 transitions. [2022-01-09 22:17:46,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-09 22:17:46,966 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 22:17:46,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 22:17:46,972 INFO L225 Difference]: With dead ends: 18 [2022-01-09 22:17:46,972 INFO L226 Difference]: Without dead ends: 9 [2022-01-09 22:17:46,975 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 22:17:46,978 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 22:17:46,978 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 22:17:47,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-01-09 22:17:47,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-01-09 22:17:47,046 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 22:17:47,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-01-09 22:17:47,049 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-01-09 22:17:47,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 22:17:47,050 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-01-09 22:17:47,050 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 22:17:47,050 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-01-09 22:17:47,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-01-09 22:17:47,050 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 22:17:47,051 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-01-09 22:17:47,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-09 22:17:47,051 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 22:17:47,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 22:17:47,052 INFO L85 PathProgramCache]: Analyzing trace with hash 300686882, now seen corresponding path program 1 times [2022-01-09 22:17:47,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 22:17:47,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586922716] [2022-01-09 22:17:47,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 22:17:47,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 22:17:47,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 22:17:47,200 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 22:17:47,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 22:17:47,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586922716] [2022-01-09 22:17:47,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586922716] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-09 22:17:47,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [296166400] [2022-01-09 22:17:47,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 22:17:47,201 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 22:17:47,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-09 22:17:47,203 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 22:17:47,204 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 22:17:47,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 22:17:47,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 15 conjunts are in the unsatisfiable core [2022-01-09 22:17:47,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-09 22:17:47,468 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 22:17:47,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-09 22:17:59,742 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-09 22:17:59,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [296166400] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-09 22:17:59,746 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-09 22:17:59,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-01-09 22:17:59,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555071851] [2022-01-09 22:17:59,747 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-09 22:17:59,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-09 22:17:59,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 22:17:59,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-09 22:17:59,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=41, Unknown=6, NotChecked=0, Total=72 [2022-01-09 22:17:59,749 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 22:17:59,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 22:17:59,786 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2022-01-09 22:17:59,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-09 22:17:59,787 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 22:17:59,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 22:17:59,787 INFO L225 Difference]: With dead ends: 9 [2022-01-09 22:17:59,787 INFO L226 Difference]: Without dead ends: 0 [2022-01-09 22:17:59,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=33, Invalid=51, Unknown=6, NotChecked=0, Total=90 [2022-01-09 22:17:59,789 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-09 22:17:59,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 11 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 1 Unchecked, 0.0s Time] [2022-01-09 22:17:59,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-09 22:17:59,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-09 22:17:59,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 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 22:17:59,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-09 22:17:59,791 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2022-01-09 22:17:59,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 22:17:59,792 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-09 22:17:59,793 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 22:17:59,793 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-09 22:17:59,793 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-09 22:17:59,795 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-09 22:17:59,821 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-01-09 22:18:00,021 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 22:18:00,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-09 22:18:00,049 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-09 22:18:00,049 INFO L854 garLoopResultBuilder]: At program point L27-2(lines 27 34) the Hoare annotation is: (or (and (= |ULTIMATE.start_main_~x~0#1| 1) (= |ULTIMATE.start_main_~y~0#1| 1)) (and (= (mod (+ |ULTIMATE.start_main_~y~0#1| 1) 2) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_~cond#1|) (= (mod (+ |ULTIMATE.start_main_~x~0#1| 1) 2) 0))) [2022-01-09 22:18:00,050 INFO L858 garLoopResultBuilder]: For program point L27-3(lines 27 34) no Hoare annotation was computed. [2022-01-09 22:18:00,050 INFO L858 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2022-01-09 22:18:00,050 INFO L854 garLoopResultBuilder]: At program point L15-2(lines 14 19) the Hoare annotation is: (and (= (mod (+ |ULTIMATE.start_main_~y~0#1| 1) 2) 0) (<= 1 |ULTIMATE.start___VERIFIER_assert_~cond#1|) (= (mod (+ |ULTIMATE.start_main_~x~0#1| 1) 2) 0)) [2022-01-09 22:18:00,050 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-09 22:18:00,050 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-09 22:18:00,050 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-09 22:18:00,051 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2022-01-09 22:18:00,051 INFO L858 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2022-01-09 22:18:00,051 INFO L854 garLoopResultBuilder]: At program point L35(lines 20 36) the Hoare annotation is: false [2022-01-09 22:18:00,054 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-09 22:18:00,055 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-09 22:18:00,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 10:18:00 BoogieIcfgContainer [2022-01-09 22:18:00,072 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-09 22:18:00,074 INFO L158 Benchmark]: Toolchain (without parser) took 13953.71ms. Allocated memory was 178.3MB in the beginning and 262.1MB in the end (delta: 83.9MB). Free memory was 121.5MB in the beginning and 160.0MB in the end (delta: -38.5MB). Peak memory consumption was 45.8MB. Max. memory is 8.0GB. [2022-01-09 22:18:00,074 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 178.3MB. Free memory is still 137.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-09 22:18:00,080 INFO L158 Benchmark]: CACSL2BoogieTranslator took 220.50ms. Allocated memory was 178.3MB in the beginning and 262.1MB in the end (delta: 83.9MB). Free memory was 121.3MB in the beginning and 236.0MB in the end (delta: -114.7MB). Peak memory consumption was 11.6MB. Max. memory is 8.0GB. [2022-01-09 22:18:00,080 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.57ms. Allocated memory is still 262.1MB. Free memory was 236.0MB in the beginning and 234.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-09 22:18:00,080 INFO L158 Benchmark]: Boogie Preprocessor took 20.64ms. Allocated memory is still 262.1MB. Free memory was 234.4MB in the beginning and 233.2MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-09 22:18:00,082 INFO L158 Benchmark]: RCFGBuilder took 192.08ms. Allocated memory is still 262.1MB. Free memory was 232.8MB in the beginning and 222.9MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-01-09 22:18:00,083 INFO L158 Benchmark]: TraceAbstraction took 13473.78ms. Allocated memory is still 262.1MB. Free memory was 222.4MB in the beginning and 160.0MB in the end (delta: 62.4MB). Peak memory consumption was 62.9MB. Max. memory is 8.0GB. [2022-01-09 22:18:00,085 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 178.3MB. Free memory is still 137.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 220.50ms. Allocated memory was 178.3MB in the beginning and 262.1MB in the end (delta: 83.9MB). Free memory was 121.3MB in the beginning and 236.0MB in the end (delta: -114.7MB). Peak memory consumption was 11.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 40.57ms. Allocated memory is still 262.1MB. Free memory was 236.0MB in the beginning and 234.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 20.64ms. Allocated memory is still 262.1MB. Free memory was 234.4MB in the beginning and 233.2MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 192.08ms. Allocated memory is still 262.1MB. Free memory was 232.8MB in the beginning and 222.9MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 13473.78ms. Allocated memory is still 262.1MB. Free memory was 222.4MB in the beginning and 160.0MB in the end (delta: 62.4MB). Peak memory consumption was 62.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 16]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.4s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 1 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 9 mSDtfsCounter, 12 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 12.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 6 NumberOfFragments, 45 HoareAnnotationTreeSize, 3 FomulaSimplifications, 12 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 12.7s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 25 ConstructedInterpolants, 4 QuantifiedInterpolants, 214 SizeOfPredicates, 7 NumberOfNonLiveVariables, 50 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: (x == 1 && y == 1) || (((y + 1) % 2 == 0 && 1 <= cond) && (x + 1) % 2 == 0) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((y + 1) % 2 == 0 && 1 <= cond) && (x + 1) % 2 == 0 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2022-01-09 22:18:00,115 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...