/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/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/array-fpi/sina5f.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 04:46:57,794 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 04:46:57,797 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 04:46:57,834 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 04:46:57,835 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 04:46:57,836 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 04:46:57,838 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 04:46:57,854 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 04:46:57,858 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 04:46:57,864 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 04:46:57,865 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 04:46:57,867 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 04:46:57,868 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 04:46:57,870 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 04:46:57,872 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 04:46:57,874 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 04:46:57,878 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 04:46:57,880 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 04:46:57,888 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 04:46:57,894 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 04:46:57,896 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 04:46:57,898 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 04:46:57,900 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 04:46:57,902 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 04:46:57,907 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-24 04:46:57,908 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-24 04:46:57,908 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-24 04:46:57,916 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-24 04:46:57,917 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-24 04:46:57,918 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-24 04:46:57,919 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-24 04:46:57,919 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-24 04:46:57,922 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-24 04:46:57,922 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-24 04:46:57,924 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-24 04:46:57,924 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-24 04:46:57,925 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-24 04:46:57,925 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-24 04:46:57,925 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 04:46:57,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 04:46:57,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 04:46:57,928 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 04:46:57,953 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 04:46:57,954 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 04:46:57,958 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 04:46:57,958 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 04:46:57,959 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 04:46:57,959 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 04:46:57,959 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 04:46:57,959 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 04:46:57,959 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 04:46:57,960 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 04:46:57,961 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 04:46:57,961 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 04:46:57,961 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 04:46:57,961 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 04:46:57,962 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 04:46:57,962 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 04:46:57,962 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 04:46:57,962 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 04:46:57,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:46:57,963 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 04:46:57,963 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 04:46:57,963 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 04:46:57,963 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 04:46:57,963 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 04:46:58,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 04:46:58,413 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 04:46:58,417 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 04:46:58,419 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 04:46:58,419 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 04:46:58,420 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/sina5f.c [2021-02-24 04:46:58,519 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e238aa10c/da3eba885b3446f0928f1a492d233af9/FLAG87e31d6b2 [2021-02-24 04:46:59,191 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 04:46:59,192 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/sina5f.c [2021-02-24 04:46:59,201 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e238aa10c/da3eba885b3446f0928f1a492d233af9/FLAG87e31d6b2 [2021-02-24 04:46:59,499 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e238aa10c/da3eba885b3446f0928f1a492d233af9 [2021-02-24 04:46:59,502 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 04:46:59,513 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 04:46:59,515 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 04:46:59,515 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 04:46:59,520 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 04:46:59,521 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:46:59" (1/1) ... [2021-02-24 04:46:59,522 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b2f2681 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:46:59, skipping insertion in model container [2021-02-24 04:46:59,523 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:46:59" (1/1) ... [2021-02-24 04:46:59,531 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 04:46:59,550 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 04:46:59,732 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-fpi/sina5f.c[589,602] [2021-02-24 04:46:59,758 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:46:59,768 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 04:46:59,788 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-fpi/sina5f.c[589,602] [2021-02-24 04:46:59,801 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:46:59,819 INFO L208 MainTranslator]: Completed translation [2021-02-24 04:46:59,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:46:59 WrapperNode [2021-02-24 04:46:59,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 04:46:59,821 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 04:46:59,822 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 04:46:59,822 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 04:46:59,837 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:46:59" (1/1) ... [2021-02-24 04:46:59,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:46:59" (1/1) ... [2021-02-24 04:46:59,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:46:59" (1/1) ... [2021-02-24 04:46:59,848 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:46:59" (1/1) ... [2021-02-24 04:46:59,858 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:46:59" (1/1) ... [2021-02-24 04:46:59,866 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:46:59" (1/1) ... [2021-02-24 04:46:59,868 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:46:59" (1/1) ... [2021-02-24 04:46:59,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 04:46:59,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 04:46:59,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 04:46:59,873 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 04:46:59,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:46:59" (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 [2021-02-24 04:46:59,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 04:46:59,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 04:46:59,996 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 04:46:59,996 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-24 04:46:59,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-24 04:46:59,997 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 04:46:59,998 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 04:46:59,998 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 04:46:59,999 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 04:47:00,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 04:47:00,000 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-24 04:47:00,000 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-24 04:47:00,000 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 04:47:00,001 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-24 04:47:00,001 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 04:47:00,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-24 04:47:00,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 04:47:00,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 04:47:00,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 04:47:00,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 04:47:00,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 04:47:00,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 04:47:00,742 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 04:47:00,742 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-02-24 04:47:00,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:47:00 BoogieIcfgContainer [2021-02-24 04:47:00,745 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 04:47:00,747 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 04:47:00,747 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 04:47:00,750 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 04:47:00,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 04:46:59" (1/3) ... [2021-02-24 04:47:00,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a260845 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:47:00, skipping insertion in model container [2021-02-24 04:47:00,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:46:59" (2/3) ... [2021-02-24 04:47:00,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a260845 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:47:00, skipping insertion in model container [2021-02-24 04:47:00,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:47:00" (3/3) ... [2021-02-24 04:47:00,754 INFO L111 eAbstractionObserver]: Analyzing ICFG sina5f.c [2021-02-24 04:47:00,761 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 04:47:00,766 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 04:47:00,785 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 04:47:00,811 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 04:47:00,811 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 04:47:00,811 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 04:47:00,811 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 04:47:00,811 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 04:47:00,812 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 04:47:00,812 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 04:47:00,812 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 04:47:00,831 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2021-02-24 04:47:00,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-02-24 04:47:00,844 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:47:00,845 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] [2021-02-24 04:47:00,846 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:47:00,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:47:00,853 INFO L82 PathProgramCache]: Analyzing trace with hash 86213903, now seen corresponding path program 1 times [2021-02-24 04:47:00,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:47:00,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2017026466] [2021-02-24 04:47:00,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:47:00,940 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:47:01,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:47:01,096 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:01,098 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:47:01,099 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:01,100 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:47:01,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:47:01,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:47:01,197 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:01,200 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:47:01,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-02-24 04:47:01,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:47:01,213 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:01,214 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:47:01,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:47:01,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2017026466] [2021-02-24 04:47:01,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:47:01,235 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-24 04:47:01,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243279335] [2021-02-24 04:47:01,240 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-24 04:47:01,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:47:01,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-24 04:47:01,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 04:47:01,256 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 3 states. [2021-02-24 04:47:01,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:47:01,569 INFO L93 Difference]: Finished difference Result 167 states and 194 transitions. [2021-02-24 04:47:01,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-24 04:47:01,571 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2021-02-24 04:47:01,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:47:01,580 INFO L225 Difference]: With dead ends: 167 [2021-02-24 04:47:01,580 INFO L226 Difference]: Without dead ends: 85 [2021-02-24 04:47:01,584 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 04:47:01,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-02-24 04:47:01,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2021-02-24 04:47:01,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2021-02-24 04:47:01,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 90 transitions. [2021-02-24 04:47:01,639 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 90 transitions. Word has length 46 [2021-02-24 04:47:01,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:47:01,639 INFO L480 AbstractCegarLoop]: Abstraction has 85 states and 90 transitions. [2021-02-24 04:47:01,639 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-24 04:47:01,640 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 90 transitions. [2021-02-24 04:47:01,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-02-24 04:47:01,642 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:47:01,642 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] [2021-02-24 04:47:01,642 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 04:47:01,643 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:47:01,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:47:01,644 INFO L82 PathProgramCache]: Analyzing trace with hash -218883754, now seen corresponding path program 1 times [2021-02-24 04:47:01,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:47:01,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1324455583] [2021-02-24 04:47:01,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:47:01,648 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:47:01,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:47:01,743 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:01,744 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:47:01,745 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:01,746 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:47:01,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:01,758 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:47:01,772 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:01,773 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:47:01,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:47:01,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:47:01,847 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:01,848 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:47:01,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-02-24 04:47:01,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:47:01,855 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:01,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:47:01,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:47:01,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1324455583] [2021-02-24 04:47:01,863 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:47:01,864 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-24 04:47:01,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513080351] [2021-02-24 04:47:01,865 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-24 04:47:01,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:47:01,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-24 04:47:01,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-24 04:47:01,867 INFO L87 Difference]: Start difference. First operand 85 states and 90 transitions. Second operand 5 states. [2021-02-24 04:47:02,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:47:02,254 INFO L93 Difference]: Finished difference Result 173 states and 188 transitions. [2021-02-24 04:47:02,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-24 04:47:02,255 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 46 [2021-02-24 04:47:02,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:47:02,259 INFO L225 Difference]: With dead ends: 173 [2021-02-24 04:47:02,259 INFO L226 Difference]: Without dead ends: 123 [2021-02-24 04:47:02,261 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-02-24 04:47:02,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-02-24 04:47:02,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 90. [2021-02-24 04:47:02,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2021-02-24 04:47:02,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 95 transitions. [2021-02-24 04:47:02,291 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 95 transitions. Word has length 46 [2021-02-24 04:47:02,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:47:02,292 INFO L480 AbstractCegarLoop]: Abstraction has 90 states and 95 transitions. [2021-02-24 04:47:02,292 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-24 04:47:02,292 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 95 transitions. [2021-02-24 04:47:02,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-02-24 04:47:02,295 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:47:02,296 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, 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] [2021-02-24 04:47:02,296 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 04:47:02,296 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:47:02,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:47:02,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1032022828, now seen corresponding path program 1 times [2021-02-24 04:47:02,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:47:02,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1879457051] [2021-02-24 04:47:02,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:47:02,320 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:02,334 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-24 04:47:02,341 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:02,343 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-24 04:47:02,350 WARN L141 QuantifierPusher]: treesize reduction 4, result has 76.5 percent of original size [2021-02-24 04:47:02,363 WARN L147 QuantifierPusher]: treesize reduction 4, result has 76.5 percent of original size 13 [2021-02-24 04:47:02,368 WARN L141 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-02-24 04:47:02,371 WARN L147 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size 30 [2021-02-24 04:47:02,372 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-02-24 04:47:02,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 04:47:02,483 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 04:47:02,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 04:47:02,568 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 04:47:02,644 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-24 04:47:02,644 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-24 04:47:02,645 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 04:47:02,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 04:47:02 BoogieIcfgContainer [2021-02-24 04:47:02,675 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 04:47:02,677 INFO L168 Benchmark]: Toolchain (without parser) took 3172.07 ms. Allocated memory was 154.1 MB in the beginning and 192.9 MB in the end (delta: 38.8 MB). Free memory was 131.3 MB in the beginning and 127.4 MB in the end (delta: 3.9 MB). Peak memory consumption was 43.4 MB. Max. memory is 8.0 GB. [2021-02-24 04:47:02,678 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 154.1 MB. Free memory is still 126.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 04:47:02,681 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.58 ms. Allocated memory is still 154.1 MB. Free memory was 130.2 MB in the beginning and 119.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-24 04:47:02,683 INFO L168 Benchmark]: Boogie Preprocessor took 49.87 ms. Allocated memory is still 154.1 MB. Free memory was 119.5 MB in the beginning and 117.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-24 04:47:02,684 INFO L168 Benchmark]: RCFGBuilder took 872.61 ms. Allocated memory is still 154.1 MB. Free memory was 117.7 MB in the beginning and 131.2 MB in the end (delta: -13.5 MB). Peak memory consumption was 21.2 MB. Max. memory is 8.0 GB. [2021-02-24 04:47:02,689 INFO L168 Benchmark]: TraceAbstraction took 1928.26 ms. Allocated memory was 154.1 MB in the beginning and 192.9 MB in the end (delta: 38.8 MB). Free memory was 130.7 MB in the beginning and 127.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 43.2 MB. Max. memory is 8.0 GB. [2021-02-24 04:47:02,700 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 154.1 MB. Free memory is still 126.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 305.58 ms. Allocated memory is still 154.1 MB. Free memory was 130.2 MB in the beginning and 119.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 49.87 ms. Allocated memory is still 154.1 MB. Free memory was 119.5 MB in the beginning and 117.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 872.61 ms. Allocated memory is still 154.1 MB. Free memory was 117.7 MB in the beginning and 131.2 MB in the end (delta: -13.5 MB). Peak memory consumption was 21.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1928.26 ms. Allocated memory was 154.1 MB in the beginning and 192.9 MB in the end (delta: 38.8 MB). Free memory was 130.7 MB in the beginning and 127.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 43.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] int i; [L28] long long sum[1]; [L29] long long *a = malloc(sizeof(long long)*N); [L30] long long *b = malloc(sizeof(long long)*N); [L32] sum[0] = 0 [L33] i=0 [L33] COND TRUE i