/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/array-examples/sanfoundry_24-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 21:16:04,908 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 21:16:04,911 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 21:16:04,949 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 21:16:04,950 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 21:16:04,955 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 21:16:04,959 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 21:16:04,966 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 21:16:04,970 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 21:16:04,976 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 21:16:04,978 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 21:16:04,979 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-21 21:16:04,980 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 21:16:04,983 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 21:16:04,985 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 21:16:04,986 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 21:16:04,990 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 21:16:04,991 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 21:16:05,010 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 21:16:05,025 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 21:16:05,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 21:16:05,032 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 21:16:05,035 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 21:16:05,036 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 21:16:05,051 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-21 21:16:05,065 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 21:16:05,065 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 21:16:05,066 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 21:16:05,067 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-21 21:16:05,078 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 21:16:05,079 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 21:16:05,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 21:16:05,081 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 21:16:05,081 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 21:16:05,081 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 21:16:05,081 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 21:16:05,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 21:16:05,082 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 21:16:05,082 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 21:16:05,082 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 21:16:05,082 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 21:16:05,082 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 21:16:05,083 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 21:16:05,083 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 21:16:05,083 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-21 21:16:05,083 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-21 21:16:05,083 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 21:16:05,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 21:16:05,084 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 21:16:05,084 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-21 21:16:05,084 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 21:16:05,084 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 21:16:05,491 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 21:16:05,528 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 21:16:05,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 21:16:05,533 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 21:16:05,534 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 21:16:05,535 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/sanfoundry_24-1.i [2021-02-21 21:16:05,617 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a573a21e/5fdb6e0122cd49f58b9a5b807ba35f1e/FLAGe95996621 [2021-02-21 21:16:06,232 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 21:16:06,233 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/sanfoundry_24-1.i [2021-02-21 21:16:06,241 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a573a21e/5fdb6e0122cd49f58b9a5b807ba35f1e/FLAGe95996621 [2021-02-21 21:16:06,611 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a573a21e/5fdb6e0122cd49f58b9a5b807ba35f1e [2021-02-21 21:16:06,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 21:16:06,630 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 21:16:06,634 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 21:16:06,635 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 21:16:06,639 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 21:16:06,640 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 09:16:06" (1/1) ... [2021-02-21 21:16:06,642 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cd0694c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:16:06, skipping insertion in model container [2021-02-21 21:16:06,643 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 09:16:06" (1/1) ... [2021-02-21 21:16:06,652 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 21:16:06,672 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 21:16:06,902 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-examples/sanfoundry_24-1.i[848,861] [2021-02-21 21:16:06,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 21:16:06,936 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 21:16:06,954 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-examples/sanfoundry_24-1.i[848,861] [2021-02-21 21:16:06,963 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 21:16:06,980 INFO L208 MainTranslator]: Completed translation [2021-02-21 21:16:06,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:16:06 WrapperNode [2021-02-21 21:16:06,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 21:16:06,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 21:16:06,983 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 21:16:06,983 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 21:16:06,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:16:06" (1/1) ... [2021-02-21 21:16:06,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:16:06" (1/1) ... [2021-02-21 21:16:07,006 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:16:06" (1/1) ... [2021-02-21 21:16:07,006 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:16:06" (1/1) ... [2021-02-21 21:16:07,030 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:16:06" (1/1) ... [2021-02-21 21:16:07,036 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:16:06" (1/1) ... [2021-02-21 21:16:07,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:16:06" (1/1) ... [2021-02-21 21:16:07,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 21:16:07,042 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 21:16:07,042 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 21:16:07,042 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 21:16:07,043 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:16:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 21:16:07,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 21:16:07,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 21:16:07,215 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 21:16:07,215 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-21 21:16:07,216 INFO L138 BoogieDeclarations]: Found implementation of procedure printEven [2021-02-21 21:16:07,216 INFO L138 BoogieDeclarations]: Found implementation of procedure printOdd [2021-02-21 21:16:07,216 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 21:16:07,217 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 21:16:07,217 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 21:16:07,217 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-21 21:16:07,218 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-21 21:16:07,218 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 21:16:07,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 21:16:07,219 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-21 21:16:07,219 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-21 21:16:07,220 INFO L130 BoogieDeclarations]: Found specification of procedure printEven [2021-02-21 21:16:07,220 INFO L130 BoogieDeclarations]: Found specification of procedure printOdd [2021-02-21 21:16:07,220 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 21:16:07,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 21:16:07,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 21:16:07,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 21:16:07,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 21:16:07,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 21:16:07,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 21:16:07,707 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 21:16:07,707 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-02-21 21:16:07,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 09:16:07 BoogieIcfgContainer [2021-02-21 21:16:07,710 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 21:16:07,711 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 21:16:07,712 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 21:16:07,715 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 21:16:07,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 09:16:06" (1/3) ... [2021-02-21 21:16:07,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19ae5c8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 09:16:07, skipping insertion in model container [2021-02-21 21:16:07,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:16:06" (2/3) ... [2021-02-21 21:16:07,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19ae5c8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 09:16:07, skipping insertion in model container [2021-02-21 21:16:07,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 09:16:07" (3/3) ... [2021-02-21 21:16:07,719 INFO L111 eAbstractionObserver]: Analyzing ICFG sanfoundry_24-1.i [2021-02-21 21:16:07,726 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-21 21:16:07,732 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 21:16:07,752 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 21:16:07,784 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 21:16:07,785 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 21:16:07,785 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-21 21:16:07,785 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 21:16:07,785 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 21:16:07,785 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 21:16:07,785 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 21:16:07,785 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 21:16:07,808 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states. [2021-02-21 21:16:07,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-02-21 21:16:07,823 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:16:07,824 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 21:16:07,824 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:16:07,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:16:07,834 INFO L82 PathProgramCache]: Analyzing trace with hash 225075960, now seen corresponding path program 1 times [2021-02-21 21:16:07,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:16:07,846 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [174272404] [2021-02-21 21:16:07,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:16:07,935 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:16:08,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:16:08,151 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:16:08,154 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:16:08,158 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:16:08,159 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:16:08,183 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:16:08,185 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:16:08,217 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:16:08,220 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 21:16:08,257 WARN L141 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-02-21 21:16:08,258 WARN L147 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size 1 [2021-02-21 21:16:08,259 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:16:08,261 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:16:08,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:16:08,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:16:08,364 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:16:08,367 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:16:08,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 21:16:08,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [174272404] [2021-02-21 21:16:08,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:16:08,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-21 21:16:08,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809192932] [2021-02-21 21:16:08,397 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-21 21:16:08,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:16:08,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-21 21:16:08,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-21 21:16:08,418 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 6 states. [2021-02-21 21:16:08,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:16:08,913 INFO L93 Difference]: Finished difference Result 150 states and 186 transitions. [2021-02-21 21:16:08,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-21 21:16:08,918 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2021-02-21 21:16:08,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:16:08,935 INFO L225 Difference]: With dead ends: 150 [2021-02-21 21:16:08,935 INFO L226 Difference]: Without dead ends: 88 [2021-02-21 21:16:08,941 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-21 21:16:08,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-02-21 21:16:09,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 64. [2021-02-21 21:16:09,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2021-02-21 21:16:09,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 69 transitions. [2021-02-21 21:16:09,036 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 69 transitions. Word has length 30 [2021-02-21 21:16:09,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:16:09,037 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 69 transitions. [2021-02-21 21:16:09,037 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-21 21:16:09,038 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 69 transitions. [2021-02-21 21:16:09,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-02-21 21:16:09,041 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:16:09,042 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 21:16:09,042 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 21:16:09,042 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:16:09,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:16:09,044 INFO L82 PathProgramCache]: Analyzing trace with hash 384352712, now seen corresponding path program 1 times [2021-02-21 21:16:09,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:16:09,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1804596652] [2021-02-21 21:16:09,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:16:09,078 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-21 21:16:09,081 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:16:09,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:16:09,222 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:16:09,223 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:16:09,229 WARN L141 QuantifierPusher]: treesize reduction 28, result has 55.6 percent of original size [2021-02-21 21:16:09,232 WARN L147 QuantifierPusher]: treesize reduction 28, result has 55.6 percent of original size 35 [2021-02-21 21:16:09,261 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:16:09,262 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-21 21:16:09,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:16:09,280 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 21:16:09,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:16:09,294 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 21:16:09,312 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:16:09,316 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-21 21:16:09,342 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:16:09,343 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:16:09,362 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:16:09,363 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:16:09,382 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:16:09,383 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:16:09,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:16:09,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:16:09,451 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:16:09,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:16:09,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 21:16:09,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1804596652] [2021-02-21 21:16:09,456 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:16:09,457 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-21 21:16:09,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368204708] [2021-02-21 21:16:09,458 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-21 21:16:09,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:16:09,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-21 21:16:09,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-02-21 21:16:09,459 INFO L87 Difference]: Start difference. First operand 64 states and 69 transitions. Second operand 10 states. [2021-02-21 21:16:10,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:16:10,299 INFO L93 Difference]: Finished difference Result 72 states and 76 transitions. [2021-02-21 21:16:10,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-21 21:16:10,300 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 37 [2021-02-21 21:16:10,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:16:10,302 INFO L225 Difference]: With dead ends: 72 [2021-02-21 21:16:10,302 INFO L226 Difference]: Without dead ends: 70 [2021-02-21 21:16:10,303 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2021-02-21 21:16:10,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-02-21 21:16:10,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2021-02-21 21:16:10,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2021-02-21 21:16:10,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 72 transitions. [2021-02-21 21:16:10,318 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 72 transitions. Word has length 37 [2021-02-21 21:16:10,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:16:10,319 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 72 transitions. [2021-02-21 21:16:10,319 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-21 21:16:10,319 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 72 transitions. [2021-02-21 21:16:10,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-02-21 21:16:10,321 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:16:10,321 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 21:16:10,321 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 21:16:10,321 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:16:10,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:16:10,322 INFO L82 PathProgramCache]: Analyzing trace with hash 1038970459, now seen corresponding path program 1 times [2021-02-21 21:16:10,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:16:10,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [101025431] [2021-02-21 21:16:10,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:16:10,330 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-21 21:16:10,331 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:16:10,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:16:10,467 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:16:10,467 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:16:10,471 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:16:10,472 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-21 21:16:10,486 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:16:10,487 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-02-21 21:16:10,500 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:16:10,501 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-21 21:16:10,518 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:16:10,519 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-21 21:16:10,541 WARN L141 QuantifierPusher]: treesize reduction 62, result has 11.4 percent of original size [2021-02-21 21:16:10,542 WARN L147 QuantifierPusher]: treesize reduction 62, result has 11.4 percent of original size 8 [2021-02-21 21:16:10,561 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:16:10,562 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:16:10,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:16:10,581 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 21:16:10,602 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:16:10,604 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:16:10,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:16:10,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:16:10,672 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:16:10,673 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:16:10,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 21:16:10,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [101025431] [2021-02-21 21:16:10,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:16:10,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-21 21:16:10,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660361349] [2021-02-21 21:16:10,682 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-21 21:16:10,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:16:10,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-21 21:16:10,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-02-21 21:16:10,684 INFO L87 Difference]: Start difference. First operand 68 states and 72 transitions. Second operand 10 states. [2021-02-21 21:16:11,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:16:11,444 INFO L93 Difference]: Finished difference Result 70 states and 74 transitions. [2021-02-21 21:16:11,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-21 21:16:11,445 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 46 [2021-02-21 21:16:11,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:16:11,446 INFO L225 Difference]: With dead ends: 70 [2021-02-21 21:16:11,446 INFO L226 Difference]: Without dead ends: 0 [2021-02-21 21:16:11,448 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2021-02-21 21:16:11,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-21 21:16:11,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-21 21:16:11,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-21 21:16:11,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-21 21:16:11,450 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2021-02-21 21:16:11,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:16:11,450 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-21 21:16:11,450 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-21 21:16:11,450 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-21 21:16:11,450 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-21 21:16:11,451 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-21 21:16:11,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-21 21:16:12,268 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2021-02-21 21:16:12,268 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 12) no Hoare annotation was computed. [2021-02-21 21:16:12,268 INFO L189 CegarLoopUtils]: For program point L12-1(line 12) no Hoare annotation was computed. [2021-02-21 21:16:12,268 INFO L189 CegarLoopUtils]: For program point L12-2(line 12) no Hoare annotation was computed. [2021-02-21 21:16:12,268 INFO L189 CegarLoopUtils]: For program point L12-3(line 12) no Hoare annotation was computed. [2021-02-21 21:16:12,269 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-21 21:16:12,269 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-21 21:16:12,269 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 12) the Hoare annotation is: true [2021-02-21 21:16:12,269 INFO L192 CegarLoopUtils]: At program point L12(line 12) the Hoare annotation is: true [2021-02-21 21:16:12,269 INFO L192 CegarLoopUtils]: At program point L12-1(line 12) the Hoare annotation is: true [2021-02-21 21:16:12,269 INFO L192 CegarLoopUtils]: At program point L12-2(line 12) the Hoare annotation is: true [2021-02-21 21:16:12,270 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string0.offset| |old(#t~string0.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= |#t~string1.offset| |old(#t~string1.offset)|)) [2021-02-21 21:16:12,270 INFO L192 CegarLoopUtils]: At program point L12-3(line 12) the Hoare annotation is: true [2021-02-21 21:16:12,270 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-21 21:16:12,270 INFO L192 CegarLoopUtils]: At program point printOddENTRY(lines 18 20) the Hoare annotation is: true [2021-02-21 21:16:12,270 INFO L185 CegarLoopUtils]: At program point printOddFINAL(lines 18 20) the Hoare annotation is: (or (not (let ((.cse0 (+ |printOdd_#in~i| 1))) (<= .cse0 (* 2 (div .cse0 2))))) (not (= printOdd_~i (* (div printOdd_~i 2) 2)))) [2021-02-21 21:16:12,270 INFO L185 CegarLoopUtils]: At program point L19(line 19) the Hoare annotation is: (or (not (let ((.cse0 (+ |printOdd_#in~i| 1))) (<= .cse0 (* 2 (div .cse0 2))))) (not (= printOdd_~i (* (div printOdd_~i 2) 2)))) [2021-02-21 21:16:12,271 INFO L185 CegarLoopUtils]: At program point printOddEXIT(lines 18 20) the Hoare annotation is: (or (not (let ((.cse0 (+ |printOdd_#in~i| 1))) (<= .cse0 (* 2 (div .cse0 2))))) (not (= printOdd_~i (* (div printOdd_~i 2) 2)))) [2021-02-21 21:16:12,271 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-21 21:16:12,271 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-21 21:16:12,271 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-21 21:16:12,271 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-21 21:16:12,271 INFO L192 CegarLoopUtils]: At program point L39-6(lines 39 45) the Hoare annotation is: true [2021-02-21 21:16:12,272 INFO L192 CegarLoopUtils]: At program point L27(line 27) the Hoare annotation is: true [2021-02-21 21:16:12,272 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 21 47) the Hoare annotation is: true [2021-02-21 21:16:12,272 INFO L192 CegarLoopUtils]: At program point L27-3(lines 27 30) the Hoare annotation is: true [2021-02-21 21:16:12,272 INFO L192 CegarLoopUtils]: At program point L23(line 23) the Hoare annotation is: true [2021-02-21 21:16:12,272 INFO L192 CegarLoopUtils]: At program point L27-4(line 27) the Hoare annotation is: true [2021-02-21 21:16:12,272 INFO L192 CegarLoopUtils]: At program point L27-5(line 27) the Hoare annotation is: true [2021-02-21 21:16:12,272 INFO L192 CegarLoopUtils]: At program point L23-1(line 23) the Hoare annotation is: true [2021-02-21 21:16:12,273 INFO L192 CegarLoopUtils]: At program point L27-6(lines 27 30) the Hoare annotation is: true [2021-02-21 21:16:12,273 INFO L192 CegarLoopUtils]: At program point L23-2(line 23) the Hoare annotation is: true [2021-02-21 21:16:12,273 INFO L192 CegarLoopUtils]: At program point L27-7(lines 27 30) the Hoare annotation is: true [2021-02-21 21:16:12,273 INFO L185 CegarLoopUtils]: At program point L36(line 36) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)))) (<= .cse0 (* 2 (div .cse0 2)))) [2021-02-21 21:16:12,273 INFO L185 CegarLoopUtils]: At program point L36-1(line 36) the Hoare annotation is: (and (<= |main_#t~mem8| (* 2 (div |main_#t~mem8| 2))) (let ((.cse0 (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)))) (<= .cse0 (* 2 (div .cse0 2))))) [2021-02-21 21:16:12,274 INFO L185 CegarLoopUtils]: At program point L36-2(line 36) the Hoare annotation is: (and (<= |main_#t~mem8| (* 2 (div |main_#t~mem8| 2))) (let ((.cse0 (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)))) (<= .cse0 (* 2 (div .cse0 2))))) [2021-02-21 21:16:12,274 INFO L192 CegarLoopUtils]: At program point L32-2(lines 32 38) the Hoare annotation is: true [2021-02-21 21:16:12,274 INFO L192 CegarLoopUtils]: At program point L32-3(line 32) the Hoare annotation is: true [2021-02-21 21:16:12,274 INFO L192 CegarLoopUtils]: At program point L32-4(line 32) the Hoare annotation is: true [2021-02-21 21:16:12,274 INFO L192 CegarLoopUtils]: At program point L32-5(lines 32 38) the Hoare annotation is: true [2021-02-21 21:16:12,274 INFO L192 CegarLoopUtils]: At program point L32-6(lines 32 38) the Hoare annotation is: true [2021-02-21 21:16:12,275 INFO L192 CegarLoopUtils]: At program point L41(line 41) the Hoare annotation is: true [2021-02-21 21:16:12,275 INFO L185 CegarLoopUtils]: At program point L41-1(lines 41 44) the Hoare annotation is: (= |main_#t~mem10| (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|))) [2021-02-21 21:16:12,275 INFO L185 CegarLoopUtils]: At program point L41-2(line 41) the Hoare annotation is: (let ((.cse1 (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)))) (and (let ((.cse0 (+ .cse1 1))) (<= .cse0 (* 2 (div .cse0 2)))) (= |main_#t~mem10| .cse1))) [2021-02-21 21:16:12,275 INFO L185 CegarLoopUtils]: At program point L41-4(line 41) the Hoare annotation is: (= |main_#t~mem10| (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|))) [2021-02-21 21:16:12,275 INFO L192 CegarLoopUtils]: At program point L29(line 29) the Hoare annotation is: true [2021-02-21 21:16:12,276 INFO L192 CegarLoopUtils]: At program point L29-1(line 29) the Hoare annotation is: true [2021-02-21 21:16:12,276 INFO L192 CegarLoopUtils]: At program point L29-2(line 29) the Hoare annotation is: true [2021-02-21 21:16:12,276 INFO L192 CegarLoopUtils]: At program point L25(line 25) the Hoare annotation is: true [2021-02-21 21:16:12,276 INFO L192 CegarLoopUtils]: At program point L25-1(line 25) the Hoare annotation is: true [2021-02-21 21:16:12,276 INFO L192 CegarLoopUtils]: At program point L25-2(line 25) the Hoare annotation is: true [2021-02-21 21:16:12,276 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 21 47) the Hoare annotation is: true [2021-02-21 21:16:12,276 INFO L192 CegarLoopUtils]: At program point L34(line 34) the Hoare annotation is: true [2021-02-21 21:16:12,277 INFO L185 CegarLoopUtils]: At program point L34-1(lines 34 37) the Hoare annotation is: (or (= (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)) |main_#t~mem7|) (not (= (* 2 (div |main_#t~mem7| 2)) |main_#t~mem7|))) [2021-02-21 21:16:12,277 INFO L185 CegarLoopUtils]: At program point L34-2(line 34) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)))) (and (or (= .cse0 |main_#t~mem7|) (not (= (* 2 (div |main_#t~mem7| 2)) |main_#t~mem7|))) (<= .cse0 (* 2 (div .cse0 2))))) [2021-02-21 21:16:12,277 INFO L185 CegarLoopUtils]: At program point L34-4(line 34) the Hoare annotation is: (or (= (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)) |main_#t~mem7|) (not (= (* 2 (div |main_#t~mem7| 2)) |main_#t~mem7|))) [2021-02-21 21:16:12,277 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 21 47) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-02-21 21:16:12,278 INFO L185 CegarLoopUtils]: At program point L43(line 43) the Hoare annotation is: (let ((.cse0 (+ (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)) 1))) (<= .cse0 (* 2 (div .cse0 2)))) [2021-02-21 21:16:12,278 INFO L185 CegarLoopUtils]: At program point L43-1(line 43) the Hoare annotation is: (and (let ((.cse0 (+ (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)) 1))) (<= .cse0 (* 2 (div .cse0 2)))) (let ((.cse1 (+ |main_#t~mem11| 1))) (<= .cse1 (* 2 (div .cse1 2))))) [2021-02-21 21:16:12,278 INFO L185 CegarLoopUtils]: At program point L43-2(line 43) the Hoare annotation is: (and (let ((.cse0 (+ (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)) 1))) (<= .cse0 (* 2 (div .cse0 2)))) (let ((.cse1 (+ |main_#t~mem11| 1))) (<= .cse1 (* 2 (div .cse1 2))))) [2021-02-21 21:16:12,278 INFO L192 CegarLoopUtils]: At program point L39-2(lines 39 45) the Hoare annotation is: true [2021-02-21 21:16:12,278 INFO L192 CegarLoopUtils]: At program point L39-3(line 39) the Hoare annotation is: true [2021-02-21 21:16:12,279 INFO L192 CegarLoopUtils]: At program point L39-4(line 39) the Hoare annotation is: true [2021-02-21 21:16:12,279 INFO L192 CegarLoopUtils]: At program point L39-5(lines 39 45) the Hoare annotation is: true [2021-02-21 21:16:12,279 INFO L185 CegarLoopUtils]: At program point L16(line 16) the Hoare annotation is: (or (<= printEven_~i (* 2 (div printEven_~i 2))) (not (<= |printEven_#in~i| (* 2 (div |printEven_#in~i| 2))))) [2021-02-21 21:16:12,279 INFO L185 CegarLoopUtils]: At program point printEvenEXIT(lines 15 17) the Hoare annotation is: (or (<= printEven_~i (* 2 (div printEven_~i 2))) (not (<= |printEven_#in~i| (* 2 (div |printEven_#in~i| 2))))) [2021-02-21 21:16:12,279 INFO L192 CegarLoopUtils]: At program point printEvenENTRY(lines 15 17) the Hoare annotation is: true [2021-02-21 21:16:12,279 INFO L185 CegarLoopUtils]: At program point printEvenFINAL(lines 15 17) the Hoare annotation is: (or (<= printEven_~i (* 2 (div printEven_~i 2))) (not (<= |printEven_#in~i| (* 2 (div |printEven_#in~i| 2))))) [2021-02-21 21:16:12,280 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(line 14) the Hoare annotation is: true [2021-02-21 21:16:12,280 INFO L185 CegarLoopUtils]: At program point L14(line 14) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-21 21:16:12,280 INFO L185 CegarLoopUtils]: At program point L14-1(line 14) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-21 21:16:12,280 INFO L185 CegarLoopUtils]: At program point L14-2(line 14) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-21 21:16:12,280 INFO L185 CegarLoopUtils]: At program point L14-4(line 14) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-21 21:16:12,281 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertEXIT(line 14) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2021-02-21 21:16:12,281 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2021-02-21 21:16:12,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 09:16:12 BoogieIcfgContainer [2021-02-21 21:16:12,300 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 21:16:12,301 INFO L168 Benchmark]: Toolchain (without parser) took 5684.79 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 108.5 MB in the beginning and 83.8 MB in the end (delta: 24.7 MB). Peak memory consumption was 56.4 MB. Max. memory is 8.0 GB. [2021-02-21 21:16:12,302 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 125.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 21:16:12,303 INFO L168 Benchmark]: CACSL2BoogieTranslator took 347.44 ms. Allocated memory is still 151.0 MB. Free memory was 107.3 MB in the beginning and 97.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-21 21:16:12,304 INFO L168 Benchmark]: Boogie Preprocessor took 58.63 ms. Allocated memory is still 151.0 MB. Free memory was 97.8 MB in the beginning and 134.7 MB in the end (delta: -36.9 MB). Peak memory consumption was 5.1 MB. Max. memory is 8.0 GB. [2021-02-21 21:16:12,304 INFO L168 Benchmark]: RCFGBuilder took 667.81 ms. Allocated memory is still 151.0 MB. Free memory was 134.7 MB in the beginning and 116.5 MB in the end (delta: 18.2 MB). Peak memory consumption was 19.3 MB. Max. memory is 8.0 GB. [2021-02-21 21:16:12,305 INFO L168 Benchmark]: TraceAbstraction took 4588.83 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 115.9 MB in the beginning and 83.8 MB in the end (delta: 32.1 MB). Peak memory consumption was 63.5 MB. Max. memory is 8.0 GB. [2021-02-21 21:16:12,309 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 125.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 347.44 ms. Allocated memory is still 151.0 MB. Free memory was 107.3 MB in the beginning and 97.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 58.63 ms. Allocated memory is still 151.0 MB. Free memory was 97.8 MB in the beginning and 134.7 MB in the end (delta: -36.9 MB). Peak memory consumption was 5.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 667.81 ms. Allocated memory is still 151.0 MB. Free memory was 134.7 MB in the beginning and 116.5 MB in the end (delta: 18.2 MB). Peak memory consumption was 19.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4588.83 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 115.9 MB in the beginning and 83.8 MB in the end (delta: 32.1 MB). Peak memory consumption was 63.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 - ProcedureContractResult [Line: 18]: Procedure Contract for printOdd Derived contract for procedure printOdd: !(\old(i) + 1 <= 2 * ((\old(i) + 1) / 2)) || !(i == i / 2 * 2) - ProcedureContractResult [Line: 15]: Procedure Contract for printEven Derived contract for procedure printEven: i <= 2 * (i / 2) || !(\old(i) <= 2 * (\old(i) / 2)) - ProcedureContractResult [Line: 21]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 14]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 176 SDtfs, 100 SDslu, 721 SDs, 0 SdLazy, 553 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70occurred in iteration=0, 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, 3 MinimizatonAttempts, 26 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 70 LocationsWithAnnotation, 99 PreInvPairs, 151 NumberOfFragments, 555 HoareAnnotationTreeSize, 99 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 70 FomulaSimplificationsInter, 429 FormulaSimplificationTreeSizeReductionInter, 0.6s 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...