/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/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/vnew2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 13:30:18,204 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 13:30:18,228 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 13:30:18,254 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 13:30:18,254 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 13:30:18,255 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 13:30:18,256 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 13:30:18,257 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 13:30:18,258 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 13:30:18,258 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 13:30:18,259 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 13:30:18,260 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 13:30:18,260 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 13:30:18,261 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 13:30:18,261 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 13:30:18,262 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 13:30:18,262 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 13:30:18,263 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 13:30:18,264 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 13:30:18,265 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 13:30:18,266 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 13:30:18,266 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 13:30:18,267 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 13:30:18,268 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 13:30:18,268 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 13:30:18,270 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-20 13:30:18,270 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-20 13:30:18,270 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-20 13:30:18,271 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-20 13:30:18,271 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-20 13:30:18,271 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-20 13:30:18,272 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-20 13:30:18,272 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-20 13:30:18,272 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-20 13:30:18,273 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-20 13:30:18,273 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-20 13:30:18,274 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-20 13:30:18,274 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-20 13:30:18,274 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-20 13:30:18,274 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 13:30:18,275 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 13:30:18,276 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 13:30:18,276 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-03-20 13:30:18,281 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 13:30:18,282 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 13:30:18,282 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 13:30:18,282 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 13:30:18,283 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 13:30:18,283 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 13:30:18,283 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 13:30:18,283 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 13:30:18,283 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 13:30:18,283 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 13:30:18,283 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 13:30:18,283 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 13:30:18,284 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 13:30:18,284 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 13:30:18,284 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 13:30:18,284 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 13:30:18,284 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-20 13:30:18,284 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 13:30:18,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 13:30:18,284 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 13:30:18,285 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-20 13:30:18,285 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-03-20 13:30:18,285 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-03-20 13:30:18,285 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 13:30:18,285 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-03-20 13:30:18,285 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 13:30:18,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 13:30:18,433 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 13:30:18,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 13:30:18,435 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 13:30:18,435 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 13:30:18,436 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/vnew2.c [2022-03-20 13:30:18,470 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b38517abb/82fada2f85b944e4809b46a0a4035dcd/FLAGea79cc320 [2022-03-20 13:30:18,881 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 13:30:18,881 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/vnew2.c [2022-03-20 13:30:18,887 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b38517abb/82fada2f85b944e4809b46a0a4035dcd/FLAGea79cc320 [2022-03-20 13:30:18,898 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b38517abb/82fada2f85b944e4809b46a0a4035dcd [2022-03-20 13:30:18,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 13:30:18,902 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-20 13:30:18,903 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 13:30:18,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 13:30:18,906 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 13:30:18,906 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 01:30:18" (1/1) ... [2022-03-20 13:30:18,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11359f8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:30:18, skipping insertion in model container [2022-03-20 13:30:18,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 01:30:18" (1/1) ... [2022-03-20 13:30:18,912 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 13:30:18,920 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 13:30:19,042 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/vnew2.c[403,416] [2022-03-20 13:30:19,077 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 13:30:19,082 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 13:30:19,089 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/vnew2.c[403,416] [2022-03-20 13:30:19,092 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 13:30:19,118 INFO L208 MainTranslator]: Completed translation [2022-03-20 13:30:19,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:30:19 WrapperNode [2022-03-20 13:30:19,118 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 13:30:19,122 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 13:30:19,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 13:30:19,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 13:30:19,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:30:19" (1/1) ... [2022-03-20 13:30:19,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:30:19" (1/1) ... [2022-03-20 13:30:19,145 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:30:19" (1/1) ... [2022-03-20 13:30:19,145 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:30:19" (1/1) ... [2022-03-20 13:30:19,157 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:30:19" (1/1) ... [2022-03-20 13:30:19,160 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:30:19" (1/1) ... [2022-03-20 13:30:19,161 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:30:19" (1/1) ... [2022-03-20 13:30:19,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 13:30:19,168 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 13:30:19,168 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 13:30:19,168 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 13:30:19,169 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:30:19" (1/1) ... [2022-03-20 13:30:19,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 13:30:19,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:30:19,189 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) [2022-03-20 13:30:19,195 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 [2022-03-20 13:30:19,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 13:30:19,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 13:30:19,215 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 13:30:19,215 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-03-20 13:30:19,215 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-03-20 13:30:19,215 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 13:30:19,215 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 13:30:19,216 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 13:30:19,216 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 13:30:19,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 13:30:19,216 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-03-20 13:30:19,217 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-03-20 13:30:19,217 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2022-03-20 13:30:19,217 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 13:30:19,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 13:30:19,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 13:30:19,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 13:30:19,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 13:30:19,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 13:30:19,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 13:30:19,263 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 13:30:19,264 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 13:30:19,343 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 13:30:19,347 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 13:30:19,347 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 13:30:19,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 01:30:19 BoogieIcfgContainer [2022-03-20 13:30:19,348 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 13:30:19,349 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 13:30:19,349 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 13:30:19,360 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 13:30:19,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 01:30:18" (1/3) ... [2022-03-20 13:30:19,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b7745e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 01:30:19, skipping insertion in model container [2022-03-20 13:30:19,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:30:19" (2/3) ... [2022-03-20 13:30:19,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b7745e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 01:30:19, skipping insertion in model container [2022-03-20 13:30:19,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 01:30:19" (3/3) ... [2022-03-20 13:30:19,363 INFO L111 eAbstractionObserver]: Analyzing ICFG vnew2.c [2022-03-20 13:30:19,366 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-20 13:30:19,366 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 13:30:19,425 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 13:30:19,430 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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 [2022-03-20 13:30:19,430 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 13:30:19,441 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 15 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-20 13:30:19,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-03-20 13:30:19,445 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:30:19,445 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:30:19,446 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:30:19,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:30:19,458 INFO L85 PathProgramCache]: Analyzing trace with hash -818707046, now seen corresponding path program 1 times [2022-03-20 13:30:19,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:30:19,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1685936382] [2022-03-20 13:30:19,470 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:30:19,471 INFO L85 PathProgramCache]: Analyzing trace with hash -818707046, now seen corresponding path program 2 times [2022-03-20 13:30:19,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:30:19,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831055529] [2022-03-20 13:30:19,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:30:19,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:30:19,539 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-03-20 13:30:19,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [427401390] [2022-03-20 13:30:19,540 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-20 13:30:19,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:30:19,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:30:19,542 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) [2022-03-20 13:30:19,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-20 13:30:19,602 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-03-20 13:30:19,602 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 13:30:19,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-20 13:30:19,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 13:30:19,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:30:19,683 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-20 13:30:19,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:30:19,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831055529] [2022-03-20 13:30:19,684 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-03-20 13:30:19,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427401390] [2022-03-20 13:30:19,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [427401390] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:30:19,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:30:19,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 13:30:19,687 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:30:19,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1685936382] [2022-03-20 13:30:19,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1685936382] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:30:19,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:30:19,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 13:30:19,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103343246] [2022-03-20 13:30:19,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:30:19,690 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 13:30:19,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:30:19,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 13:30:19,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 13:30:19,707 INFO L87 Difference]: Start difference. First operand has 21 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 15 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:30:19,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:30:19,741 INFO L93 Difference]: Finished difference Result 42 states and 51 transitions. [2022-03-20 13:30:19,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 13:30:19,743 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-03-20 13:30:19,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:30:19,746 INFO L225 Difference]: With dead ends: 42 [2022-03-20 13:30:19,747 INFO L226 Difference]: Without dead ends: 15 [2022-03-20 13:30:19,748 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-20 13:30:19,751 INFO L913 BasicCegarLoop]: 22 mSDtfsCounter, 9 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 13:30:19,751 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 60 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 13:30:19,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-03-20 13:30:19,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-03-20 13:30:19,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:30:19,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-03-20 13:30:19,772 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2022-03-20 13:30:19,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:30:19,773 INFO L478 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-03-20 13:30:19,773 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:30:19,773 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-03-20 13:30:19,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-03-20 13:30:19,774 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:30:19,775 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:30:19,791 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-03-20 13:30:19,987 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-03-20 13:30:19,988 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:30:19,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:30:19,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1914943323, now seen corresponding path program 1 times [2022-03-20 13:30:19,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:30:19,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2139497606] [2022-03-20 13:30:20,112 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={1=2, 2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-03-20 13:30:20,113 INFO L271 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-03-20 13:30:20,114 INFO L85 PathProgramCache]: Analyzing trace with hash 564616058, now seen corresponding path program 1 times [2022-03-20 13:30:20,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:30:20,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985547957] [2022-03-20 13:30:20,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:30:20,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:30:20,128 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ main_~n~0_5 (* (- 4294967296) (div main_~n~0_5 4294967296)) (* (- 1) main_~i~0_6) (* (- 3) .v_it_1.0) (* 4294967296 (div (+ main_~i~0_6 (* 3 .v_it_1.0)) 4294967296))) 0)) [2022-03-20 13:30:20,135 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-03-20 13:30:20,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1673346743] [2022-03-20 13:30:20,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:30:20,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:30:20,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:30:20,136 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) [2022-03-20 13:30:20,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-20 13:30:20,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:30:20,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 18 conjunts are in the unsatisfiable core [2022-03-20 13:30:20,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 13:30:39,217 WARN L232 SmtUtils]: Spent 17.82s on a formula simplification that was a NOOP. DAG size: 48 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 13:30:51,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 13:30:51,300 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-20 13:30:51,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:30:51,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985547957] [2022-03-20 13:30:51,301 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-03-20 13:30:51,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673346743] [2022-03-20 13:30:51,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673346743] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:30:51,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:30:51,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-20 13:31:01,065 WARN L232 SmtUtils]: Spent 9.74s on a formula simplification. DAG size of input: 47 DAG size of output: 45 (called from [L 182] de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.MetaTraceTransformer.getInductiveLoopInterpolants) [2022-03-20 13:31:01,887 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:31:01,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2139497606] [2022-03-20 13:31:01,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2139497606] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:31:01,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:31:01,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-20 13:31:01,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111462028] [2022-03-20 13:31:01,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:31:01,888 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-20 13:31:01,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:31:01,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-20 13:31:01,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-03-20 13:31:01,889 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 9 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:31:01,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:31:01,930 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-03-20 13:31:01,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-20 13:31:01,930 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-03-20 13:31:01,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:31:01,931 INFO L225 Difference]: With dead ends: 15 [2022-03-20 13:31:01,931 INFO L226 Difference]: Without dead ends: 0 [2022-03-20 13:31:01,931 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 21.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-03-20 13:31:01,932 INFO L913 BasicCegarLoop]: 7 mSDtfsCounter, 1 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 13:31:01,932 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 25 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 10 Unchecked, 0.0s Time] [2022-03-20 13:31:01,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-20 13:31:01,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-20 13:31:01,933 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) [2022-03-20 13:31:01,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-20 13:31:01,933 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-03-20 13:31:01,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:31:01,934 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-20 13:31:01,934 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 13:31:01,934 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-20 13:31:01,934 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-20 13:31:01,936 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-20 13:31:01,941 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-20 13:31:02,137 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-03-20 13:31:02,139 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-03-20 13:31:24,990 WARN L232 SmtUtils]: Spent 22.84s on a formula simplification. DAG size of input: 69 DAG size of output: 47 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-03-20 13:32:00,270 WARN L232 SmtUtils]: Spent 33.12s on a formula simplification. DAG size of input: 52 DAG size of output: 48 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-03-20 13:32:00,350 INFO L882 garLoopResultBuilder]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2022-03-20 13:32:00,351 INFO L882 garLoopResultBuilder]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2022-03-20 13:32:00,351 INFO L882 garLoopResultBuilder]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2022-03-20 13:32:00,351 INFO L882 garLoopResultBuilder]: For program point assume_abort_if_notENTRY(lines 5 7) no Hoare annotation was computed. [2022-03-20 13:32:00,351 INFO L882 garLoopResultBuilder]: For program point L6(line 6) no Hoare annotation was computed. [2022-03-20 13:32:00,351 INFO L882 garLoopResultBuilder]: For program point L6-2(lines 5 7) no Hoare annotation was computed. [2022-03-20 13:32:00,351 INFO L882 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 5 7) no Hoare annotation was computed. [2022-03-20 13:32:00,351 INFO L885 garLoopResultBuilder]: At program point mainENTRY(lines 16 29) the Hoare annotation is: true [2022-03-20 13:32:00,351 INFO L878 garLoopResultBuilder]: At program point L27(line 27) the Hoare annotation is: (or (exists ((aux_div_aux_mod_aux_mod_main_~n~0_26_37_48 Int) (aux_mod_aux_mod_aux_mod_main_~n~0_26_37_48 Int) (aux_div_aux_mod_main_~n~0_26_37 Int)) (let ((.cse4 (* aux_div_aux_mod_aux_mod_main_~n~0_26_37_48 4294967296)) (.cse3 (div (* (- 1) main_~i~0) (- 3)))) (let ((.cse0 (* 3 .cse3)) (.cse2 (+ aux_mod_aux_mod_aux_mod_main_~n~0_26_37_48 .cse4)) (.cse1 (+ (* aux_div_aux_mod_main_~n~0_26_37 4294967296) aux_mod_aux_mod_aux_mod_main_~n~0_26_37_48 .cse4))) (and (forall ((v_it_1 Int)) (or (not (<= (+ v_it_1 1) (div (* (- 1) main_~i~0) (- 3)))) (not (<= 1 v_it_1)) (< (mod (* v_it_1 3) 4294967296) (mod aux_mod_aux_mod_aux_mod_main_~n~0_26_37_48 4294967296)))) (= main_~k~0 .cse0) (<= .cse1 (mod main_~i~0 4294967296)) (< 0 .cse2) (= main_~j~0 .cse0) (< .cse2 4294967296) (= (mod (* main_~i~0 2) 3) 0) (< 0 .cse3) (<= aux_mod_aux_mod_aux_mod_main_~n~0_26_37_48 (mod ~SIZE~0 4294967296)) (<= 0 .cse1) (<= 0 aux_mod_aux_mod_aux_mod_main_~n~0_26_37_48))))) (not (= ~SIZE~0 20000001))) [2022-03-20 13:32:00,351 INFO L885 garLoopResultBuilder]: At program point L26(lines 26 27) the Hoare annotation is: true [2022-03-20 13:32:00,351 INFO L885 garLoopResultBuilder]: At program point mainEXIT(lines 16 29) the Hoare annotation is: true [2022-03-20 13:32:00,352 INFO L885 garLoopResultBuilder]: At program point L19(line 19) the Hoare annotation is: true [2022-03-20 13:32:00,352 INFO L878 garLoopResultBuilder]: At program point L21-2(lines 21 25) the Hoare annotation is: (or (let ((.cse0 (mod main_~n~0 4294967296))) (and (<= .cse0 (mod ~SIZE~0 4294967296)) (or (let ((.cse2 (div (* (- 1) main_~i~0) (- 3)))) (let ((.cse1 (* 3 .cse2))) (and (= main_~k~0 .cse1) (= main_~j~0 .cse1) (= (mod (* main_~i~0 2) 3) 0) (< 0 .cse2) (forall ((v_it_1 Int)) (or (< (mod (* v_it_1 3) 4294967296) (mod main_~n~0 4294967296)) (not (<= (+ v_it_1 1) (div (* (- 1) main_~i~0) (- 3)))) (not (<= 1 v_it_1)))) (< 0 .cse0)))) (and (= main_~k~0 0) (= main_~j~0 0) (= main_~i~0 0))))) (not (= ~SIZE~0 20000001))) [2022-03-20 13:32:00,352 INFO L878 garLoopResultBuilder]: At program point L21-3(lines 16 29) the Hoare annotation is: (let ((.cse2 (mod main_~n~0 4294967296))) (let ((.cse0 (< 0 .cse2))) (or (and (= main_~i~0 0) (not .cse0)) (not (= ~SIZE~0 20000001)) (let ((.cse3 (div (* (- 1) main_~i~0) (- 3)))) (let ((.cse1 (* 3 .cse3))) (and (= main_~k~0 .cse1) (= main_~j~0 .cse1) (not (< (mod main_~i~0 4294967296) .cse2)) (= (mod (* main_~i~0 2) 3) 0) (< 0 .cse3) (<= .cse2 (mod ~SIZE~0 4294967296)) (forall ((v_it_1 Int)) (or (< (mod (* v_it_1 3) 4294967296) (mod main_~n~0 4294967296)) (not (<= (+ v_it_1 1) (div (* (- 1) main_~i~0) (- 3)))) (not (<= 1 v_it_1)))) .cse0)))))) [2022-03-20 13:32:00,352 INFO L885 garLoopResultBuilder]: At program point mainFINAL(lines 16 29) the Hoare annotation is: true [2022-03-20 13:32:00,352 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: (= ~SIZE~0 20000001) [2022-03-20 13:32:00,352 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2022-03-20 13:32:00,352 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: (= ~SIZE~0 20000001) [2022-03-20 13:32:00,352 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2022-03-20 13:32:00,352 INFO L878 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (= ~SIZE~0 20000001) [2022-03-20 13:32:00,352 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-03-20 13:32:00,352 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2022-03-20 13:32:00,353 INFO L885 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 8 13) the Hoare annotation is: true [2022-03-20 13:32:00,353 INFO L878 garLoopResultBuilder]: At program point L10(line 10) the Hoare annotation is: (not (= |__VERIFIER_assert_#in~cond| 1)) [2022-03-20 13:32:00,353 INFO L885 garLoopResultBuilder]: At program point __VERIFIER_assertEXIT(lines 8 13) the Hoare annotation is: true [2022-03-20 13:32:00,353 INFO L878 garLoopResultBuilder]: At program point L9(lines 9 11) the Hoare annotation is: (or (not (= |__VERIFIER_assert_#in~cond| 1)) (= __VERIFIER_assert_~cond 1)) [2022-03-20 13:32:00,353 INFO L885 garLoopResultBuilder]: At program point L9-2(lines 8 13) the Hoare annotation is: true [2022-03-20 13:32:00,353 INFO L878 garLoopResultBuilder]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) the Hoare annotation is: (not (= |__VERIFIER_assert_#in~cond| 1)) [2022-03-20 13:32:00,355 INFO L719 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-03-20 13:32:00,356 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-20 13:32:00,364 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_it_1,QUANTIFIED] [2022-03-20 13:32:00,364 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_it_1,QUANTIFIED] [2022-03-20 13:32:00,364 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_it_1,QUANTIFIED] [2022-03-20 13:32:00,369 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_it_1,QUANTIFIED] [2022-03-20 13:32:00,369 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_it_1,QUANTIFIED] [2022-03-20 13:32:00,369 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_it_1,QUANTIFIED] [2022-03-20 13:32:00,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 01:32:00 BoogieIcfgContainer [2022-03-20 13:32:00,370 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-20 13:32:00,371 INFO L158 Benchmark]: Toolchain (without parser) took 101468.73ms. Allocated memory was 207.6MB in the beginning and 288.4MB in the end (delta: 80.7MB). Free memory was 151.1MB in the beginning and 156.2MB in the end (delta: -5.1MB). Peak memory consumption was 76.1MB. Max. memory is 8.0GB. [2022-03-20 13:32:00,371 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 207.6MB. Free memory is still 167.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-20 13:32:00,371 INFO L158 Benchmark]: CACSL2BoogieTranslator took 218.65ms. Allocated memory is still 207.6MB. Free memory was 151.0MB in the beginning and 177.8MB in the end (delta: -26.8MB). Peak memory consumption was 7.1MB. Max. memory is 8.0GB. [2022-03-20 13:32:00,371 INFO L158 Benchmark]: Boogie Preprocessor took 44.62ms. Allocated memory is still 207.6MB. Free memory was 177.8MB in the beginning and 176.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-20 13:32:00,371 INFO L158 Benchmark]: RCFGBuilder took 180.71ms. Allocated memory is still 207.6MB. Free memory was 176.3MB in the beginning and 166.1MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-03-20 13:32:00,372 INFO L158 Benchmark]: TraceAbstraction took 101020.97ms. Allocated memory was 207.6MB in the beginning and 288.4MB in the end (delta: 80.7MB). Free memory was 165.6MB in the beginning and 156.2MB in the end (delta: 9.4MB). Peak memory consumption was 91.2MB. Max. memory is 8.0GB. [2022-03-20 13:32:00,372 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 207.6MB. Free memory is still 167.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 218.65ms. Allocated memory is still 207.6MB. Free memory was 151.0MB in the beginning and 177.8MB in the end (delta: -26.8MB). Peak memory consumption was 7.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 44.62ms. Allocated memory is still 207.6MB. Free memory was 177.8MB in the beginning and 176.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 180.71ms. Allocated memory is still 207.6MB. Free memory was 176.3MB in the beginning and 166.1MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 101020.97ms. Allocated memory was 207.6MB in the beginning and 288.4MB in the end (delta: 80.7MB). Free memory was 165.6MB in the beginning and 156.2MB in the end (delta: 9.4MB). Peak memory consumption was 91.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_it_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_it_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_it_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_it_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_it_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_it_1,QUANTIFIED] * 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: 10]: 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 6 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 100.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 58.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 85 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 10 IncrementalHoareTripleChecker+Unchecked, 56 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16 IncrementalHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 29 mSDtfsCounter, 16 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 21.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 14, 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, 21 LocationsWithAnnotation, 27 PreInvPairs, 44 NumberOfFragments, 325 HoareAnnotationTreeSize, 27 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 21 FomulaSimplificationsInter, 130 FormulaSimplificationTreeSizeReductionInter, 58.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, 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: 21]: Loop Invariant [2022-03-20 13:32:00,377 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_it_1,QUANTIFIED] [2022-03-20 13:32:00,377 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_it_1,QUANTIFIED] [2022-03-20 13:32:00,377 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_it_1,QUANTIFIED] [2022-03-20 13:32:00,377 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_it_1,QUANTIFIED] [2022-03-20 13:32:00,378 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_it_1,QUANTIFIED] [2022-03-20 13:32:00,378 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_it_1,QUANTIFIED] Derived loop invariant: (n % 4294967296 <= SIZE % 4294967296 && ((((((k == 3 * (-1 * i / -3) && j == 3 * (-1 * i / -3)) && i * 2 % 3 == 0) && 0 < -1 * i / -3) && (forall v_it_1 : int :: (v_it_1 * 3 % 4294967296 < n % 4294967296 || !(v_it_1 + 1 <= -1 * i / -3)) || !(1 <= v_it_1))) && 0 < n % 4294967296) || ((k == 0 && j == 0) && i == 0))) || !(SIZE == 20000001) - ProcedureContractResult [Line: 16]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 8]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: 1 RESULT: Ultimate proved your program to be correct! [2022-03-20 13:32:00,475 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...