/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/ldv-regression/test_while_int.c_1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 20:39:36,045 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 20:39:36,050 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 20:39:36,112 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 20:39:36,112 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 20:39:36,117 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 20:39:36,121 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 20:39:36,130 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 20:39:36,134 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 20:39:36,141 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 20:39:36,143 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 20:39:36,145 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-21 20:39:36,146 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 20:39:36,148 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 20:39:36,150 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 20:39:36,152 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 20:39:36,157 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 20:39:36,169 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 20:39:36,177 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 20:39:36,187 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 20:39:36,189 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 20:39:36,191 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 20:39:36,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 20:39:36,195 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 20:39:36,205 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-21 20:39:36,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-21 20:39:36,206 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-21 20:39:36,208 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-21 20:39:36,209 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-21 20:39:36,210 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-21 20:39:36,210 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-21 20:39:36,211 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-21 20:39:36,213 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-21 20:39:36,214 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-21 20:39:36,216 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-21 20:39:36,216 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-21 20:39:36,217 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-21 20:39:36,217 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-21 20:39:36,218 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 20:39:36,219 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 20:39:36,220 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 20:39:36,223 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 20:39:36,247 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 20:39:36,247 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 20:39:36,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 20:39:36,252 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 20:39:36,252 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 20:39:36,252 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 20:39:36,252 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 20:39:36,253 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 20:39:36,253 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 20:39:36,253 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 20:39:36,254 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 20:39:36,254 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 20:39:36,255 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 20:39:36,255 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 20:39:36,255 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 20:39:36,256 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-21 20:39:36,256 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-21 20:39:36,256 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 20:39:36,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 20:39:36,256 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 20:39:36,257 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-21 20:39:36,257 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 20:39:36,257 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 20:39:36,698 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 20:39:36,748 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 20:39:36,751 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 20:39:36,753 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 20:39:36,754 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 20:39:36,755 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test_while_int.c_1.i [2021-02-21 20:39:36,844 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/588afc62c/1d10e5fb737d4bdc8ab8303720cb16cb/FLAGaf153d789 [2021-02-21 20:39:37,444 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 20:39:37,444 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test_while_int.c_1.i [2021-02-21 20:39:37,451 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/588afc62c/1d10e5fb737d4bdc8ab8303720cb16cb/FLAGaf153d789 [2021-02-21 20:39:37,856 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/588afc62c/1d10e5fb737d4bdc8ab8303720cb16cb [2021-02-21 20:39:37,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 20:39:37,876 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 20:39:37,883 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 20:39:37,884 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 20:39:37,889 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 20:39:37,890 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 08:39:37" (1/1) ... [2021-02-21 20:39:37,892 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20d87e93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:39:37, skipping insertion in model container [2021-02-21 20:39:37,892 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 08:39:37" (1/1) ... [2021-02-21 20:39:37,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 20:39:37,921 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 20:39:38,125 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test_while_int.c_1.i[300,313] [2021-02-21 20:39:38,160 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 20:39:38,174 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 20:39:38,191 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test_while_int.c_1.i[300,313] [2021-02-21 20:39:38,194 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 20:39:38,214 INFO L208 MainTranslator]: Completed translation [2021-02-21 20:39:38,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:39:38 WrapperNode [2021-02-21 20:39:38,215 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 20:39:38,217 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 20:39:38,217 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 20:39:38,217 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 20:39:38,233 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:39:38" (1/1) ... [2021-02-21 20:39:38,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:39:38" (1/1) ... [2021-02-21 20:39:38,241 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:39:38" (1/1) ... [2021-02-21 20:39:38,242 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:39:38" (1/1) ... [2021-02-21 20:39:38,249 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:39:38" (1/1) ... [2021-02-21 20:39:38,257 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:39:38" (1/1) ... [2021-02-21 20:39:38,259 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:39:38" (1/1) ... [2021-02-21 20:39:38,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 20:39:38,270 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 20:39:38,270 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 20:39:38,271 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 20:39:38,272 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:39:38" (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 20:39:38,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 20:39:38,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 20:39:38,391 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 20:39:38,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2021-02-21 20:39:38,392 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 20:39:38,392 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 20:39:38,393 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 20:39:38,393 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 20:39:38,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 20:39:38,393 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2021-02-21 20:39:38,393 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 20:39:38,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 20:39:38,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 20:39:38,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 20:39:38,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 20:39:38,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 20:39:38,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 20:39:38,733 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 20:39:38,734 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-21 20:39:38,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 08:39:38 BoogieIcfgContainer [2021-02-21 20:39:38,736 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 20:39:38,742 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 20:39:38,742 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 20:39:38,751 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 20:39:38,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 08:39:37" (1/3) ... [2021-02-21 20:39:38,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cb0ec8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 08:39:38, skipping insertion in model container [2021-02-21 20:39:38,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:39:38" (2/3) ... [2021-02-21 20:39:38,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cb0ec8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 08:39:38, skipping insertion in model container [2021-02-21 20:39:38,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 08:39:38" (3/3) ... [2021-02-21 20:39:38,762 INFO L111 eAbstractionObserver]: Analyzing ICFG test_while_int.c_1.i [2021-02-21 20:39:38,776 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-21 20:39:38,784 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 20:39:38,835 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 20:39:38,887 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 20:39:38,887 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 20:39:38,887 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-21 20:39:38,888 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 20:39:38,888 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 20:39:38,888 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 20:39:38,888 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 20:39:38,888 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 20:39:38,904 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2021-02-21 20:39:38,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-02-21 20:39:38,913 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:39:38,914 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] [2021-02-21 20:39:38,915 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:39:38,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:39:38,922 INFO L82 PathProgramCache]: Analyzing trace with hash 2063667912, now seen corresponding path program 1 times [2021-02-21 20:39:38,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:39:38,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [273591485] [2021-02-21 20:39:38,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:39:39,010 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 20:39:39,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:39:39,163 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:39:39,165 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:39:39,167 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:39:39,168 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:39:39,188 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:39:39,189 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:39:39,202 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:39:39,203 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:39:39,219 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:39:39,220 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:39:39,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:39:39,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:39:39,320 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:39:39,321 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:39:39,327 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 20:39:39,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [273591485] [2021-02-21 20:39:39,331 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 20:39:39,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-21 20:39:39,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26928680] [2021-02-21 20:39:39,338 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-21 20:39:39,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 20:39:39,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-21 20:39:39,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-02-21 20:39:39,357 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 6 states. [2021-02-21 20:39:39,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 20:39:39,654 INFO L93 Difference]: Finished difference Result 50 states and 60 transitions. [2021-02-21 20:39:39,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-21 20:39:39,656 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2021-02-21 20:39:39,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 20:39:39,664 INFO L225 Difference]: With dead ends: 50 [2021-02-21 20:39:39,665 INFO L226 Difference]: Without dead ends: 29 [2021-02-21 20:39:39,668 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-02-21 20:39:39,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-02-21 20:39:39,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2021-02-21 20:39:39,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2021-02-21 20:39:39,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2021-02-21 20:39:39,722 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 20 [2021-02-21 20:39:39,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 20:39:39,723 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2021-02-21 20:39:39,723 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-21 20:39:39,723 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2021-02-21 20:39:39,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-02-21 20:39:39,724 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:39:39,725 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 20:39:39,725 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 20:39:39,725 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:39:39,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:39:39,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1997383635, now seen corresponding path program 1 times [2021-02-21 20:39:39,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:39:39,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1990937849] [2021-02-21 20:39:39,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:39:41,973 WARN L141 QuantifierPusher]: treesize reduction 75, result has 40.5 percent of original size [2021-02-21 20:39:42,008 WARN L147 QuantifierPusher]: treesize reduction 75, result has 40.5 percent of original size 51 [2021-02-21 20:39:42,096 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:39:42,099 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-02-21 20:39:42,100 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-21 20:39:42,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:39:42,217 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:39:42,217 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:39:42,219 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:39:42,222 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:39:42,228 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:39:42,230 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:39:42,241 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-21 20:39:42,246 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-21 20:39:42,250 WARN L141 QuantifierPusher]: treesize reduction 3, result has 70.0 percent of original size [2021-02-21 20:39:42,252 WARN L147 QuantifierPusher]: treesize reduction 3, result has 70.0 percent of original size 7 [2021-02-21 20:39:42,258 WARN L141 QuantifierPusher]: treesize reduction 3, result has 70.0 percent of original size [2021-02-21 20:39:42,260 WARN L147 QuantifierPusher]: treesize reduction 3, result has 70.0 percent of original size 7 [2021-02-21 20:39:42,275 WARN L141 QuantifierPusher]: treesize reduction 3, result has 70.0 percent of original size [2021-02-21 20:39:42,278 WARN L147 QuantifierPusher]: treesize reduction 3, result has 70.0 percent of original size 7 [2021-02-21 20:39:42,296 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:39:42,297 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:39:42,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:39:42,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:39:42,377 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:39:42,378 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:39:42,381 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 20:39:42,385 WARN L141 QuantifierPusher]: treesize reduction 3, result has 92.9 percent of original size [2021-02-21 20:39:42,387 WARN L147 QuantifierPusher]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-02-21 20:39:42,390 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:39:42,391 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 20:39:42,394 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:39:42,396 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-21 20:39:42,398 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-21 20:39:42,447 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:39:42,448 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-21 20:39:42,462 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:39:42,464 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-21 20:39:42,487 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:39:42,490 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-21 20:39:42,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:39:42,525 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-21 20:39:42,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:39:42,553 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-21 20:39:42,574 WARN L141 QuantifierPusher]: treesize reduction 10, result has 9.1 percent of original size [2021-02-21 20:39:42,576 WARN L147 QuantifierPusher]: treesize reduction 10, result has 9.1 percent of original size 1 [2021-02-21 20:39:42,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1990937849] [2021-02-21 20:39:42,577 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 20:39:42,577 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-21 20:39:42,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385403928] [2021-02-21 20:39:42,579 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-21 20:39:42,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 20:39:42,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-21 20:39:42,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-02-21 20:39:42,584 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 10 states. [2021-02-21 20:39:43,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 20:39:43,070 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2021-02-21 20:39:43,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-21 20:39:43,072 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 25 [2021-02-21 20:39:43,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 20:39:43,072 INFO L225 Difference]: With dead ends: 26 [2021-02-21 20:39:43,073 INFO L226 Difference]: Without dead ends: 0 [2021-02-21 20:39:43,074 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-02-21 20:39:43,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-21 20:39:43,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-21 20:39:43,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-21 20:39:43,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-21 20:39:43,076 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2021-02-21 20:39:43,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 20:39:43,076 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-21 20:39:43,076 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-21 20:39:43,076 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-21 20:39:43,076 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-21 20:39:43,077 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 20:39:43,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-21 20:39:43,517 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-21 20:39:43,517 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-21 20:39:43,517 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-21 20:39:43,517 INFO L192 CegarLoopUtils]: At program point L3-2(line 3) the Hoare annotation is: true [2021-02-21 20:39:43,517 INFO L192 CegarLoopUtils]: At program point L3-3(line 3) the Hoare annotation is: true [2021-02-21 20:39:43,518 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-21 20:39:43,518 INFO L192 CegarLoopUtils]: At program point L3-4(line 3) the Hoare annotation is: true [2021-02-21 20:39:43,518 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-21 20:39:43,518 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2021-02-21 20:39:43,518 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2021-02-21 20:39:43,519 INFO L192 CegarLoopUtils]: At program point L3(line 3) the Hoare annotation is: true [2021-02-21 20:39:43,519 INFO L192 CegarLoopUtils]: At program point L3-1(line 3) the Hoare annotation is: true [2021-02-21 20:39:43,519 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-21 20:39:43,519 INFO L192 CegarLoopUtils]: At program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) the Hoare annotation is: true [2021-02-21 20:39:43,519 INFO L192 CegarLoopUtils]: At program point __blast_assertEXIT(lines 6 9) the Hoare annotation is: true [2021-02-21 20:39:43,519 INFO L192 CegarLoopUtils]: At program point L8(line 8) the Hoare annotation is: true [2021-02-21 20:39:43,520 INFO L192 CegarLoopUtils]: At program point __blast_assertFINAL(lines 6 9) the Hoare annotation is: true [2021-02-21 20:39:43,520 INFO L192 CegarLoopUtils]: At program point __blast_assertENTRY(lines 6 9) the Hoare annotation is: true [2021-02-21 20:39:43,520 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-21 20:39:43,520 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-21 20:39:43,520 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-21 20:39:43,520 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-21 20:39:43,520 INFO L192 CegarLoopUtils]: At program point mainENTRY(lines 13 24) the Hoare annotation is: true [2021-02-21 20:39:43,521 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 13 24) the Hoare annotation is: true [2021-02-21 20:39:43,521 INFO L185 CegarLoopUtils]: At program point L18(line 18) the Hoare annotation is: (or (= main_~i~0 1) (and (<= 2 main_~i~0) (<= main_~i~0 2))) [2021-02-21 20:39:43,521 INFO L185 CegarLoopUtils]: At program point L16(line 16) the Hoare annotation is: (or (= main_~i~0 0) (= main_~i~0 1)) [2021-02-21 20:39:43,521 INFO L185 CegarLoopUtils]: At program point L18-2(line 18) the Hoare annotation is: false [2021-02-21 20:39:43,521 INFO L185 CegarLoopUtils]: At program point L16-1(line 16) the Hoare annotation is: (let ((.cse0 (= |main_#t~post7| main_~i~0))) (or (and (= main_~i~0 0) .cse0) (and .cse0 (= main_~i~0 1)))) [2021-02-21 20:39:43,522 INFO L185 CegarLoopUtils]: At program point L18-3(lines 15 22) the Hoare annotation is: (or (= main_~i~0 0) (= main_~i~0 1) (and (<= 2 main_~i~0) (<= main_~i~0 2))) [2021-02-21 20:39:43,522 INFO L185 CegarLoopUtils]: At program point L16-2(line 16) the Hoare annotation is: (and (= (+ |main_#t~post7| 1) main_~i~0) (or (= |main_#t~post7| 0) (and (<= |main_#t~post7| 1) (<= 1 |main_#t~post7|)))) [2021-02-21 20:39:43,522 INFO L192 CegarLoopUtils]: At program point L15-2(lines 15 22) the Hoare annotation is: true [2021-02-21 20:39:43,522 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 13 24) the Hoare annotation is: true [2021-02-21 20:39:43,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 08:39:43 BoogieIcfgContainer [2021-02-21 20:39:43,541 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 20:39:43,542 INFO L168 Benchmark]: Toolchain (without parser) took 5679.31 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 126.6 MB in the beginning and 99.1 MB in the end (delta: 27.6 MB). Peak memory consumption was 59.0 MB. Max. memory is 8.0 GB. [2021-02-21 20:39:43,543 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 151.0 MB. Free memory is still 125.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 20:39:43,544 INFO L168 Benchmark]: CACSL2BoogieTranslator took 332.04 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 116.4 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2021-02-21 20:39:43,545 INFO L168 Benchmark]: Boogie Preprocessor took 51.62 ms. Allocated memory is still 151.0 MB. Free memory was 116.4 MB in the beginning and 114.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-21 20:39:43,546 INFO L168 Benchmark]: RCFGBuilder took 466.43 ms. Allocated memory is still 151.0 MB. Free memory was 114.9 MB in the beginning and 102.3 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-02-21 20:39:43,547 INFO L168 Benchmark]: TraceAbstraction took 4799.21 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 101.8 MB in the beginning and 99.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 33.8 MB. Max. memory is 8.0 GB. [2021-02-21 20:39:43,550 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 151.0 MB. Free memory is still 125.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 332.04 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 116.4 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 51.62 ms. Allocated memory is still 151.0 MB. Free memory was 116.4 MB in the beginning and 114.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 466.43 ms. Allocated memory is still 151.0 MB. Free memory was 114.9 MB in the beginning and 102.3 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4799.21 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 101.8 MB in the beginning and 99.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 33.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: 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: 15]: Loop Invariant Derived loop invariant: (i == 0 || i == 1) || (2 <= i && i <= 2) - ProcedureContractResult [Line: 6]: Procedure Contract for __blast_assert Derived contract for procedure __blast_assert: 1 - ProcedureContractResult [Line: 13]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.1s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 36 SDtfs, 35 SDslu, 124 SDs, 0 SdLazy, 83 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 29 LocationsWithAnnotation, 34 PreInvPairs, 49 NumberOfFragments, 118 HoareAnnotationTreeSize, 34 FomulaSimplifications, 331 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 29 FomulaSimplificationsInter, 369 FormulaSimplificationTreeSizeReductionInter, 0.3s 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...