/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/sum_natnum.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 13:20:42,313 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 13:20:42,314 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 13:20:42,333 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-20 13:20:42,346 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 13:20:42,347 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 13:20:42,347 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 13:20:42,348 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 13:20:42,348 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 13:20:42,349 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 13:20:42,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 13:20:42,351 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 13:20:42,352 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 13:20:42,356 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 13:20:42,358 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 13:20:42,359 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 13:20:42,359 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 13:20:42,361 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-20 13:20:42,365 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 13:20:42,365 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 13:20:42,367 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 13:20:42,367 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 13:20:42,372 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 13:20:42,373 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 13:20:42,373 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 13:20:42,373 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 13:20:42,374 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 13:20:42,374 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 13:20:42,374 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 13:20:42,374 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 13:20:42,374 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 13:20:42,374 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 13:20:42,374 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 13:20:42,374 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 13:20:42,374 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 13:20:42,374 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 13:20:42,374 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 13:20:42,374 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 13:20:42,375 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-20 13:20:42,375 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 13:20:42,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 13:20:42,375 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 13:20:42,375 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-20 13:20:42,375 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-03-20 13:20:42,375 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-03-20 13:20:42,375 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 13:20:42,375 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-03-20 13:20:42,375 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 13:20:42,540 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 13:20:42,557 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 13:20:42,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 13:20:42,559 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 13:20:42,559 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 13:20:42,560 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/sum_natnum.c [2022-03-20 13:20:42,599 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/888f0f772/f748d04abf8045d98acd9ac08755a214/FLAGff2f5f4b5 [2022-03-20 13:20:42,967 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 13:20:42,968 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/sum_natnum.c [2022-03-20 13:20:42,971 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/888f0f772/f748d04abf8045d98acd9ac08755a214/FLAGff2f5f4b5 [2022-03-20 13:20:42,979 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/888f0f772/f748d04abf8045d98acd9ac08755a214 [2022-03-20 13:20:42,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 13:20:42,982 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-20 13:20:42,983 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 13:20:42,983 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 13:20:42,986 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 13:20:42,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 01:20:42" (1/1) ... [2022-03-20 13:20:42,988 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@787357bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:20:42, skipping insertion in model container [2022-03-20 13:20:42,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 01:20:42" (1/1) ... [2022-03-20 13:20:42,992 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 13:20:43,002 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 13:20:43,120 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/sum_natnum.c[458,471] [2022-03-20 13:20:43,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 13:20:43,131 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 13:20:43,138 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/sum_natnum.c[458,471] [2022-03-20 13:20:43,140 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 13:20:43,147 INFO L208 MainTranslator]: Completed translation [2022-03-20 13:20:43,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:20:43 WrapperNode [2022-03-20 13:20:43,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 13:20:43,148 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 13:20:43,148 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 13:20:43,149 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 13:20:43,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:20:43" (1/1) ... [2022-03-20 13:20:43,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:20:43" (1/1) ... [2022-03-20 13:20:43,160 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:20:43" (1/1) ... [2022-03-20 13:20:43,161 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:20:43" (1/1) ... [2022-03-20 13:20:43,163 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:20:43" (1/1) ... [2022-03-20 13:20:43,165 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:20:43" (1/1) ... [2022-03-20 13:20:43,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:20:43" (1/1) ... [2022-03-20 13:20:43,168 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 13:20:43,169 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 13:20:43,169 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 13:20:43,169 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 13:20:43,170 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:20:43" (1/1) ... [2022-03-20 13:20:43,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 13:20:43,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:20:43,205 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 13:20:43,235 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 13:20:43,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 13:20:43,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 13:20:43,247 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 13:20:43,247 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-03-20 13:20:43,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-03-20 13:20:43,248 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 13:20:43,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 13:20:43,248 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 13:20:43,248 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 13:20:43,249 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 13:20:43,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 13:20:43,250 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-03-20 13:20:43,250 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-03-20 13:20:43,250 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 13:20:43,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 13:20:43,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 13:20:43,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 13:20:43,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 13:20:43,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 13:20:43,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 13:20:43,294 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 13:20:43,295 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 13:20:43,382 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 13:20:43,386 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 13:20:43,386 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 13:20:43,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 01:20:43 BoogieIcfgContainer [2022-03-20 13:20:43,388 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 13:20:43,395 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 13:20:43,395 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 13:20:43,397 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 13:20:43,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 01:20:42" (1/3) ... [2022-03-20 13:20:43,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@218c3592 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 01:20:43, skipping insertion in model container [2022-03-20 13:20:43,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 01:20:43" (2/3) ... [2022-03-20 13:20:43,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@218c3592 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 01:20:43, skipping insertion in model container [2022-03-20 13:20:43,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 01:20:43" (3/3) ... [2022-03-20 13:20:43,416 INFO L111 eAbstractionObserver]: Analyzing ICFG sum_natnum.c [2022-03-20 13:20:43,419 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-20 13:20:43,419 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 13:20:43,449 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 13:20:43,454 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 13:20:43,454 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 13:20:43,463 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 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 13:20:43,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-03-20 13:20:43,468 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:20:43,468 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:20:43,468 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:20:43,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:20:43,472 INFO L85 PathProgramCache]: Analyzing trace with hash -407588949, now seen corresponding path program 1 times [2022-03-20 13:20:43,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:20:43,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1014283753] [2022-03-20 13:20:43,485 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 13:20:43,485 INFO L85 PathProgramCache]: Analyzing trace with hash -407588949, now seen corresponding path program 2 times [2022-03-20 13:20:43,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:20:43,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851870946] [2022-03-20 13:20:43,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:20:43,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:20:43,559 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-03-20 13:20:43,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1071934263] [2022-03-20 13:20:43,560 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-20 13:20:43,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:20:43,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:20:43,564 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 13:20:43,565 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 13:20:43,606 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-03-20 13:20:43,606 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 13:20:43,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2022-03-20 13:20:43,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 13:20:43,730 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 13:20:43,731 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-20 13:20:43,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:20:43,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851870946] [2022-03-20 13:20:43,732 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-03-20 13:20:43,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071934263] [2022-03-20 13:20:43,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071934263] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:20:43,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:20:43,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 13:20:43,736 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:20:43,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1014283753] [2022-03-20 13:20:43,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1014283753] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:20:43,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:20:43,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 13:20:43,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385930301] [2022-03-20 13:20:43,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:20:43,741 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 13:20:43,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:20:43,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 13:20:43,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-20 13:20:43,769 INFO L87 Difference]: Start difference. First operand has 19 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 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 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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 13:20:46,216 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-20 13:20:46,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:20:46,224 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2022-03-20 13:20:46,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 13:20:46,226 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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 11 [2022-03-20 13:20:46,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:20:46,234 INFO L225 Difference]: With dead ends: 32 [2022-03-20 13:20:46,235 INFO L226 Difference]: Without dead ends: 13 [2022-03-20 13:20:46,238 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-20 13:20:46,243 INFO L913 BasicCegarLoop]: 17 mSDtfsCounter, 14 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 13:20:46,247 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 27 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 13:20:46,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-03-20 13:20:46,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-03-20 13:20:46,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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 13:20:46,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2022-03-20 13:20:46,275 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2022-03-20 13:20:46,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:20:46,276 INFO L478 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2022-03-20 13:20:46,276 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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 13:20:46,276 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-03-20 13:20:46,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-03-20 13:20:46,276 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 13:20:46,277 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 13:20:46,293 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 13:20:46,482 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 13:20:46,483 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 13:20:46,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 13:20:46,483 INFO L85 PathProgramCache]: Analyzing trace with hash 284139538, now seen corresponding path program 1 times [2022-03-20 13:20:46,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 13:20:46,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1278173999] [2022-03-20 13:20:47,718 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 2 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={3=1}}, 0 SequentialAcceleration, 1 AlternatingAcceleration, 1 QuantifierFreeResult [2022-03-20 13:20:47,719 INFO L271 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-03-20 13:20:47,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1171643219, now seen corresponding path program 1 times [2022-03-20 13:20:47,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 13:20:47,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443316767] [2022-03-20 13:20:47,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:20:47,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 13:20:47,733 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-03-20 13:20:47,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1435069399] [2022-03-20 13:20:47,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 13:20:47,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 13:20:47,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 13:20:47,736 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 13:20:47,738 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 13:20:47,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 13:20:47,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 11 conjunts are in the unsatisfiable core [2022-03-20 13:20:47,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 13:20:50,937 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 13:20:50,937 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-20 13:20:50,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 13:20:50,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443316767] [2022-03-20 13:20:50,940 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-03-20 13:20:50,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435069399] [2022-03-20 13:20:50,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435069399] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:20:50,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:20:50,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-20 13:20:54,099 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 13:20:54,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1278173999] [2022-03-20 13:20:54,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1278173999] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 13:20:54,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 13:20:54,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-20 13:20:54,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591563450] [2022-03-20 13:20:54,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 13:20:54,100 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-20 13:20:54,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 13:20:54,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-20 13:20:54,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-03-20 13:20:54,101 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 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 13:20:55,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 13:20:55,131 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2022-03-20 13:20:55,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 13:20:55,131 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 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 12 [2022-03-20 13:20:55,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 13:20:55,132 INFO L225 Difference]: With dead ends: 13 [2022-03-20 13:20:55,132 INFO L226 Difference]: Without dead ends: 0 [2022-03-20 13:20:55,132 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-03-20 13:20:55,133 INFO L913 BasicCegarLoop]: 7 mSDtfsCounter, 4 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-20 13:20:55,133 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 24 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 8 Unchecked, 0.8s Time] [2022-03-20 13:20:55,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-20 13:20:55,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-20 13:20:55,134 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 13:20:55,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-20 13:20:55,134 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2022-03-20 13:20:55,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 13:20:55,134 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-20 13:20:55,134 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 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 13:20:55,134 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-20 13:20:55,134 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-20 13:20:55,136 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-20 13:20:55,144 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-20 13:20:55,342 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 13:20:55,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-03-20 13:20:57,757 INFO L882 garLoopResultBuilder]: For program point reach_errorEXIT(line 7) no Hoare annotation was computed. [2022-03-20 13:20:57,758 INFO L882 garLoopResultBuilder]: For program point reach_errorENTRY(line 7) no Hoare annotation was computed. [2022-03-20 13:20:57,758 INFO L882 garLoopResultBuilder]: For program point reach_errorFINAL(line 7) no Hoare annotation was computed. [2022-03-20 13:20:57,758 INFO L882 garLoopResultBuilder]: For program point assume_abort_if_notENTRY(lines 9 11) no Hoare annotation was computed. [2022-03-20 13:20:57,758 INFO L882 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed. [2022-03-20 13:20:57,758 INFO L882 garLoopResultBuilder]: For program point L10-2(lines 9 11) no Hoare annotation was computed. [2022-03-20 13:20:57,758 INFO L882 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 9 11) no Hoare annotation was computed. [2022-03-20 13:20:57,758 INFO L885 garLoopResultBuilder]: At program point mainENTRY(lines 19 29) the Hoare annotation is: true [2022-03-20 13:20:57,758 INFO L885 garLoopResultBuilder]: At program point L27(line 27) the Hoare annotation is: true [2022-03-20 13:20:57,759 INFO L885 garLoopResultBuilder]: At program point mainEXIT(lines 19 29) the Hoare annotation is: true [2022-03-20 13:20:57,759 INFO L878 garLoopResultBuilder]: At program point L23-2(lines 23 26) the Hoare annotation is: (or (not (= ~SIZE~0 40000)) (and (let ((.cse1 (* (- 1) main_~i~0))) (or (let ((.cse0 (div (+ .cse1 2) (- 2)))) (and (= 0 (mod main_~i~0 2)) (= (+ (* 3 .cse0) main_~i~0 (* (* .cse0 .cse0) 2) 1) main_~sum~0) (<= 0 .cse0))) (and (= main_~sum~0 main_~i~0) (= main_~i~0 1)) (let ((.cse2 (div (+ .cse1 1) (- 2)))) (and (= (+ main_~i~0 .cse2 (* 2 (* .cse2 .cse2))) main_~sum~0) (= (mod (+ main_~i~0 1) 2) 0) (< 0 .cse2))))) (< main_~i~0 (+ ~SIZE~0 1))) (and (= main_~sum~0 0) (= main_~i~0 0))) [2022-03-20 13:20:57,759 INFO L878 garLoopResultBuilder]: At program point L23-3(lines 23 26) the Hoare annotation is: (or (not (= ~SIZE~0 40000)) (and (exists ((aux_div_main_~i~0_17 Int)) (and (= (+ aux_div_main_~i~0_17 (* 2 (* aux_div_main_~i~0_17 aux_div_main_~i~0_17))) main_~sum~0) (< aux_div_main_~i~0_17 (+ (div (+ ~SIZE~0 (- 2)) 2) 2)) (<= ~SIZE~0 (* 2 aux_div_main_~i~0_17)))) (= (let ((.cse0 (div (+ (* (- 1) main_~i~0) 2) (- 2)))) (+ (* 3 .cse0) main_~i~0 (* (* .cse0 .cse0) 2) 1)) main_~sum~0))) [2022-03-20 13:20:57,759 INFO L885 garLoopResultBuilder]: At program point mainFINAL(lines 19 29) the Hoare annotation is: true [2022-03-20 13:20:57,759 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: (= ~SIZE~0 40000) [2022-03-20 13:20:57,759 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2022-03-20 13:20:57,759 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: (= ~SIZE~0 40000) [2022-03-20 13:20:57,759 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: (<= 40000 ~SIZE~0) [2022-03-20 13:20:57,760 INFO L878 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (= ~SIZE~0 40000) [2022-03-20 13:20:57,760 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-03-20 13:20:57,760 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: (<= 40000 ~SIZE~0) [2022-03-20 13:20:57,760 INFO L885 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 12 17) the Hoare annotation is: true [2022-03-20 13:20:57,760 INFO L878 garLoopResultBuilder]: At program point L14(line 14) the Hoare annotation is: (or (not (<= 40000 ~SIZE~0)) (not (<= 1 |__VERIFIER_assert_#in~cond|))) [2022-03-20 13:20:57,760 INFO L878 garLoopResultBuilder]: At program point L13(lines 13 15) the Hoare annotation is: (or (not (<= 40000 ~SIZE~0)) (not (<= 1 |__VERIFIER_assert_#in~cond|)) (<= 1 __VERIFIER_assert_~cond)) [2022-03-20 13:20:57,760 INFO L885 garLoopResultBuilder]: At program point L13-2(lines 12 17) the Hoare annotation is: true [2022-03-20 13:20:57,760 INFO L885 garLoopResultBuilder]: At program point __VERIFIER_assertEXIT(lines 12 17) the Hoare annotation is: true [2022-03-20 13:20:57,760 INFO L878 garLoopResultBuilder]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) the Hoare annotation is: (or (not (<= 40000 ~SIZE~0)) (not (<= 1 |__VERIFIER_assert_#in~cond|))) [2022-03-20 13:20:57,762 INFO L719 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-03-20 13:20:57,763 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-20 13:20:57,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 01:20:57 BoogieIcfgContainer [2022-03-20 13:20:57,777 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-20 13:20:57,778 INFO L158 Benchmark]: Toolchain (without parser) took 14795.73ms. Allocated memory was 187.7MB in the beginning and 266.3MB in the end (delta: 78.6MB). Free memory was 133.6MB in the beginning and 170.9MB in the end (delta: -37.2MB). Peak memory consumption was 42.5MB. Max. memory is 8.0GB. [2022-03-20 13:20:57,778 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 187.7MB. Free memory is still 150.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-20 13:20:57,778 INFO L158 Benchmark]: CACSL2BoogieTranslator took 164.65ms. Allocated memory is still 187.7MB. Free memory was 133.5MB in the beginning and 165.1MB in the end (delta: -31.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-03-20 13:20:57,779 INFO L158 Benchmark]: Boogie Preprocessor took 19.74ms. Allocated memory is still 187.7MB. Free memory was 165.1MB in the beginning and 163.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-20 13:20:57,779 INFO L158 Benchmark]: RCFGBuilder took 218.98ms. Allocated memory is still 187.7MB. Free memory was 163.6MB in the beginning and 154.1MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-20 13:20:57,779 INFO L158 Benchmark]: TraceAbstraction took 14382.20ms. Allocated memory was 187.7MB in the beginning and 266.3MB in the end (delta: 78.6MB). Free memory was 153.6MB in the beginning and 170.9MB in the end (delta: -17.3MB). Peak memory consumption was 62.4MB. Max. memory is 8.0GB. [2022-03-20 13:20:57,781 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 187.7MB. Free memory is still 150.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 164.65ms. Allocated memory is still 187.7MB. Free memory was 133.5MB in the beginning and 165.1MB in the end (delta: -31.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.74ms. Allocated memory is still 187.7MB. Free memory was 165.1MB in the beginning and 163.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 218.98ms. Allocated memory is still 187.7MB. Free memory was 163.6MB in the beginning and 154.1MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 14382.20ms. Allocated memory was 187.7MB in the beginning and 266.3MB in the end (delta: 78.6MB). Free memory was 153.6MB in the beginning and 170.9MB in the end (delta: -17.3MB). Peak memory consumption was 62.4MB. 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: 14]: 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, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.4s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 3.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 51 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 8 IncrementalHoareTripleChecker+Unchecked, 27 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 25 IncrementalHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 24 mSDtfsCounter, 25 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 19 LocationsWithAnnotation, 25 PreInvPairs, 34 NumberOfFragments, 233 HoareAnnotationTreeSize, 25 FomulaSimplifications, 25 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 19 FomulaSimplificationsInter, 153 FormulaSimplificationTreeSizeReductionInter, 2.4s 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: 23]: Loop Invariant Derived loop invariant: (!(SIZE == 40000) || (((((0 == i % 2 && 3 * ((-1 * i + 2) / -2) + i + (-1 * i + 2) / -2 * ((-1 * i + 2) / -2) * 2 + 1 == sum) && 0 <= (-1 * i + 2) / -2) || (sum == i && i == 1)) || ((i + (-1 * i + 1) / -2 + 2 * ((-1 * i + 1) / -2 * ((-1 * i + 1) / -2)) == sum && (i + 1) % 2 == 0) && 0 < (-1 * i + 1) / -2)) && i < SIZE + 1)) || (sum == 0 && i == 0) - ProcedureContractResult [Line: 19]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 12]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: 1 RESULT: Ultimate proved your program to be correct! [2022-03-20 13:20:57,803 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...