/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/loops/veris.c_sendmail_tTflag_arr_one_loop.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 04:47:39,091 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 04:47:39,094 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 04:47:39,144 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 04:47:39,145 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 04:47:39,149 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 04:47:39,153 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 04:47:39,161 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 04:47:39,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 04:47:39,172 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 04:47:39,174 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 04:47:39,176 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 04:47:39,177 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 04:47:39,179 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 04:47:39,182 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 04:47:39,184 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 04:47:39,199 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 04:47:39,203 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 04:47:39,205 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 04:47:39,210 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 04:47:39,213 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 04:47:39,217 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 04:47:39,218 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 04:47:39,219 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 04:47:39,228 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-24 04:47:39,244 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 04:47:39,245 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 04:47:39,246 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 04:47:39,247 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 04:47:39,275 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 04:47:39,275 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 04:47:39,281 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 04:47:39,281 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 04:47:39,281 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 04:47:39,282 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 04:47:39,282 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 04:47:39,282 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 04:47:39,282 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 04:47:39,282 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 04:47:39,284 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 04:47:39,284 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 04:47:39,284 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 04:47:39,285 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 04:47:39,285 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 04:47:39,285 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 04:47:39,285 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 04:47:39,286 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 04:47:39,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:47:39,286 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 04:47:39,286 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 04:47:39,287 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 04:47:39,287 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 04:47:39,287 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 04:47:39,788 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 04:47:39,816 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 04:47:39,819 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 04:47:39,820 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 04:47:39,821 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 04:47:39,822 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/veris.c_sendmail_tTflag_arr_one_loop.c [2021-02-24 04:47:39,910 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74f016e9e/c5c1f0a3b2354533af6f57c9faa63044/FLAGca68fef8b [2021-02-24 04:47:40,610 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 04:47:40,611 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_sendmail_tTflag_arr_one_loop.c [2021-02-24 04:47:40,619 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74f016e9e/c5c1f0a3b2354533af6f57c9faa63044/FLAGca68fef8b [2021-02-24 04:47:40,981 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74f016e9e/c5c1f0a3b2354533af6f57c9faa63044 [2021-02-24 04:47:40,984 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 04:47:40,999 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 04:47:41,001 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 04:47:41,001 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 04:47:41,005 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 04:47:41,006 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:47:40" (1/1) ... [2021-02-24 04:47:41,008 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ef4fed6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:47:41, skipping insertion in model container [2021-02-24 04:47:41,008 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:47:40" (1/1) ... [2021-02-24 04:47:41,017 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 04:47:41,034 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 04:47:41,192 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_sendmail_tTflag_arr_one_loop.c[386,399] [2021-02-24 04:47:41,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:47:41,222 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 04:47:41,236 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_sendmail_tTflag_arr_one_loop.c[386,399] [2021-02-24 04:47:41,245 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:47:41,261 INFO L208 MainTranslator]: Completed translation [2021-02-24 04:47:41,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:47:41 WrapperNode [2021-02-24 04:47:41,262 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 04:47:41,263 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 04:47:41,264 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 04:47:41,264 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 04:47:41,277 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:47:41" (1/1) ... [2021-02-24 04:47:41,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:47:41" (1/1) ... [2021-02-24 04:47:41,285 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:47:41" (1/1) ... [2021-02-24 04:47:41,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:47:41" (1/1) ... [2021-02-24 04:47:41,293 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:47:41" (1/1) ... [2021-02-24 04:47:41,298 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:47:41" (1/1) ... [2021-02-24 04:47:41,300 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:47:41" (1/1) ... [2021-02-24 04:47:41,302 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 04:47:41,303 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 04:47:41,303 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 04:47:41,304 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 04:47:41,304 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:47:41" (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 04:47:41,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 04:47:41,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 04:47:41,396 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 04:47:41,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-24 04:47:41,396 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 04:47:41,396 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 04:47:41,396 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 04:47:41,396 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 04:47:41,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 04:47:41,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2021-02-24 04:47:41,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-24 04:47:41,397 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 04:47:41,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 04:47:41,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 04:47:41,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 04:47:41,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 04:47:41,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 04:47:41,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 04:47:41,798 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 04:47:41,799 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-02-24 04:47:41,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:47:41 BoogieIcfgContainer [2021-02-24 04:47:41,805 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 04:47:41,811 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 04:47:41,811 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 04:47:41,820 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 04:47:41,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 04:47:40" (1/3) ... [2021-02-24 04:47:41,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@304c4a90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:47:41, skipping insertion in model container [2021-02-24 04:47:41,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:47:41" (2/3) ... [2021-02-24 04:47:41,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@304c4a90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:47:41, skipping insertion in model container [2021-02-24 04:47:41,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:47:41" (3/3) ... [2021-02-24 04:47:41,824 INFO L111 eAbstractionObserver]: Analyzing ICFG veris.c_sendmail_tTflag_arr_one_loop.c [2021-02-24 04:47:41,834 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 04:47:41,840 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 04:47:41,864 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 04:47:41,895 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 04:47:41,895 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 04:47:41,895 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 04:47:41,895 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 04:47:41,896 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 04:47:41,896 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 04:47:41,896 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 04:47:41,896 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 04:47:41,916 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states. [2021-02-24 04:47:41,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-02-24 04:47:41,928 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:47:41,929 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] [2021-02-24 04:47:41,930 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:47:41,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:47:41,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1609627532, now seen corresponding path program 1 times [2021-02-24 04:47:41,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:47:41,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [33387564] [2021-02-24 04:47:41,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:47:42,044 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:47:42,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:47:42,189 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:42,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:47:42,193 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:42,194 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:47:42,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:47:42,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:47:42,326 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:42,329 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:47:42,344 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 04:47:42,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [33387564] [2021-02-24 04:47:42,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:47:42,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-24 04:47:42,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549041363] [2021-02-24 04:47:42,365 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-24 04:47:42,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:47:42,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-24 04:47:42,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-24 04:47:42,388 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 3 states. [2021-02-24 04:47:42,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:47:42,634 INFO L93 Difference]: Finished difference Result 87 states and 94 transitions. [2021-02-24 04:47:42,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-24 04:47:42,636 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2021-02-24 04:47:42,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:47:42,646 INFO L225 Difference]: With dead ends: 87 [2021-02-24 04:47:42,646 INFO L226 Difference]: Without dead ends: 47 [2021-02-24 04:47:42,652 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 04:47:42,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-02-24 04:47:42,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-02-24 04:47:42,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2021-02-24 04:47:42,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 48 transitions. [2021-02-24 04:47:42,723 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 48 transitions. Word has length 32 [2021-02-24 04:47:42,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:47:42,724 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 48 transitions. [2021-02-24 04:47:42,724 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-24 04:47:42,724 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2021-02-24 04:47:42,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-02-24 04:47:42,725 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:47:42,726 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] [2021-02-24 04:47:42,726 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 04:47:42,726 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:47:42,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:47:42,727 INFO L82 PathProgramCache]: Analyzing trace with hash 531011061, now seen corresponding path program 1 times [2021-02-24 04:47:42,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:47:42,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [83245101] [2021-02-24 04:47:42,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:47:42,731 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:47:42,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:47:42,797 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:42,798 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:47:42,799 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:42,799 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:47:42,803 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:42,804 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:47:42,809 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:42,810 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:47:42,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:47:42,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:47:42,855 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:47:42,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:47:42,861 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 04:47:42,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [83245101] [2021-02-24 04:47:42,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:47:42,863 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-24 04:47:42,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595129980] [2021-02-24 04:47:42,864 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-24 04:47:42,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:47:42,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-24 04:47:42,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-24 04:47:42,866 INFO L87 Difference]: Start difference. First operand 47 states and 48 transitions. Second operand 5 states. [2021-02-24 04:47:43,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:47:43,049 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2021-02-24 04:47:43,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-24 04:47:43,050 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2021-02-24 04:47:43,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:47:43,051 INFO L225 Difference]: With dead ends: 47 [2021-02-24 04:47:43,051 INFO L226 Difference]: Without dead ends: 0 [2021-02-24 04:47:43,053 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-02-24 04:47:43,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-24 04:47:43,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-24 04:47:43,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-24 04:47:43,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-24 04:47:43,054 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2021-02-24 04:47:43,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:47:43,055 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-24 04:47:43,055 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-24 04:47:43,055 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-24 04:47:43,055 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-24 04:47:43,056 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 04:47:43,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-24 04:47:43,324 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-24 04:47:43,324 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-24 04:47:43,324 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-24 04:47:43,325 INFO L192 CegarLoopUtils]: At program point L3-2(line 3) the Hoare annotation is: true [2021-02-24 04:47:43,331 INFO L192 CegarLoopUtils]: At program point L3-3(line 3) the Hoare annotation is: true [2021-02-24 04:47:43,331 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-24 04:47:43,332 INFO L192 CegarLoopUtils]: At program point L3-4(line 3) the Hoare annotation is: true [2021-02-24 04:47:43,332 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-24 04:47:43,332 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2021-02-24 04:47:43,333 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|)) [2021-02-24 04:47:43,334 INFO L192 CegarLoopUtils]: At program point L3(line 3) the Hoare annotation is: true [2021-02-24 04:47:43,334 INFO L192 CegarLoopUtils]: At program point L3-1(line 3) the Hoare annotation is: true [2021-02-24 04:47:43,334 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-24 04:47:43,334 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-24 04:47:43,334 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-24 04:47:43,334 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-24 04:47:43,335 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-24 04:47:43,335 INFO L192 CegarLoopUtils]: At program point L31(line 31) the Hoare annotation is: true [2021-02-24 04:47:43,335 INFO L192 CegarLoopUtils]: At program point L27(line 27) the Hoare annotation is: true [2021-02-24 04:47:43,335 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 12 39) the Hoare annotation is: true [2021-02-24 04:47:43,336 INFO L192 CegarLoopUtils]: At program point L32(line 32) the Hoare annotation is: true [2021-02-24 04:47:43,336 INFO L192 CegarLoopUtils]: At program point L28(line 28) the Hoare annotation is: true [2021-02-24 04:47:43,336 INFO L192 CegarLoopUtils]: At program point L28-1(line 28) the Hoare annotation is: true [2021-02-24 04:47:43,336 INFO L192 CegarLoopUtils]: At program point L28-2(line 28) the Hoare annotation is: true [2021-02-24 04:47:43,336 INFO L192 CegarLoopUtils]: At program point L24(line 24) the Hoare annotation is: true [2021-02-24 04:47:43,337 INFO L192 CegarLoopUtils]: At program point L20(line 20) the Hoare annotation is: true [2021-02-24 04:47:43,337 INFO L192 CegarLoopUtils]: At program point L20-3(lines 20 22) the Hoare annotation is: true [2021-02-24 04:47:43,337 INFO L192 CegarLoopUtils]: At program point L16(line 16) the Hoare annotation is: true [2021-02-24 04:47:43,337 INFO L192 CegarLoopUtils]: At program point L20-4(line 20) the Hoare annotation is: true [2021-02-24 04:47:43,337 INFO L192 CegarLoopUtils]: At program point L20-5(line 20) the Hoare annotation is: true [2021-02-24 04:47:43,337 INFO L192 CegarLoopUtils]: At program point L20-6(lines 20 22) the Hoare annotation is: true [2021-02-24 04:47:43,337 INFO L192 CegarLoopUtils]: At program point L20-7(lines 20 22) the Hoare annotation is: true [2021-02-24 04:47:43,338 INFO L192 CegarLoopUtils]: At program point L37(line 37) the Hoare annotation is: true [2021-02-24 04:47:43,339 INFO L192 CegarLoopUtils]: At program point L33(line 33) the Hoare annotation is: true [2021-02-24 04:47:43,339 INFO L192 CegarLoopUtils]: At program point L33-1(line 33) the Hoare annotation is: true [2021-02-24 04:47:43,339 INFO L192 CegarLoopUtils]: At program point L33-2(line 33) the Hoare annotation is: true [2021-02-24 04:47:43,339 INFO L192 CegarLoopUtils]: At program point L29-2(lines 29 35) the Hoare annotation is: true [2021-02-24 04:47:43,339 INFO L192 CegarLoopUtils]: At program point L29-3(lines 29 35) the Hoare annotation is: true [2021-02-24 04:47:43,340 INFO L192 CegarLoopUtils]: At program point L21(line 21) the Hoare annotation is: true [2021-02-24 04:47:43,340 INFO L192 CegarLoopUtils]: At program point L21-1(line 21) the Hoare annotation is: true [2021-02-24 04:47:43,340 INFO L192 CegarLoopUtils]: At program point L21-2(line 21) the Hoare annotation is: true [2021-02-24 04:47:43,340 INFO L192 CegarLoopUtils]: At program point L17(line 17) the Hoare annotation is: true [2021-02-24 04:47:43,341 INFO L192 CegarLoopUtils]: At program point L17-1(line 17) the Hoare annotation is: true [2021-02-24 04:47:43,341 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 12 39) the Hoare annotation is: true [2021-02-24 04:47:43,341 INFO L192 CegarLoopUtils]: At program point L34(line 34) the Hoare annotation is: true [2021-02-24 04:47:43,341 INFO L192 CegarLoopUtils]: At program point L34-1(line 34) the Hoare annotation is: true [2021-02-24 04:47:43,342 INFO L192 CegarLoopUtils]: At program point L34-2(line 34) the Hoare annotation is: true [2021-02-24 04:47:43,342 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 12 39) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-02-24 04:47:43,342 INFO L192 CegarLoopUtils]: At program point L26(line 26) the Hoare annotation is: true [2021-02-24 04:47:43,342 INFO L192 CegarLoopUtils]: At program point L18(line 18) the Hoare annotation is: true [2021-02-24 04:47:43,342 INFO L192 CegarLoopUtils]: At program point L14(line 14) the Hoare annotation is: true [2021-02-24 04:47:43,342 INFO L192 CegarLoopUtils]: At program point L14-1(line 14) the Hoare annotation is: true [2021-02-24 04:47:43,343 INFO L192 CegarLoopUtils]: At program point L14-2(line 14) the Hoare annotation is: true [2021-02-24 04:47:43,343 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2021-02-24 04:47:43,343 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertEXIT(lines 6 11) the Hoare annotation is: true [2021-02-24 04:47:43,343 INFO L185 CegarLoopUtils]: At program point L8(line 8) the Hoare annotation is: (not (= |__VERIFIER_assert_#in~cond| 1)) [2021-02-24 04:47:43,344 INFO L185 CegarLoopUtils]: At program point L7(lines 7 9) the Hoare annotation is: (or (not (= |__VERIFIER_assert_#in~cond| 1)) (= __VERIFIER_assert_~cond 1)) [2021-02-24 04:47:43,344 INFO L185 CegarLoopUtils]: At program point L8-1(line 8) the Hoare annotation is: (not (= |__VERIFIER_assert_#in~cond| 1)) [2021-02-24 04:47:43,344 INFO L192 CegarLoopUtils]: At program point L7-2(lines 6 11) the Hoare annotation is: true [2021-02-24 04:47:43,344 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) the Hoare annotation is: (not (= |__VERIFIER_assert_#in~cond| 1)) [2021-02-24 04:47:43,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 04:47:43 BoogieIcfgContainer [2021-02-24 04:47:43,361 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 04:47:43,366 INFO L168 Benchmark]: Toolchain (without parser) took 2376.01 ms. Allocated memory was 158.3 MB in the beginning and 190.8 MB in the end (delta: 32.5 MB). Free memory was 134.3 MB in the beginning and 127.6 MB in the end (delta: 6.6 MB). Peak memory consumption was 39.8 MB. Max. memory is 8.0 GB. [2021-02-24 04:47:43,368 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 158.3 MB. Free memory was 132.7 MB in the beginning and 132.6 MB in the end (delta: 100.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 04:47:43,371 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.73 ms. Allocated memory is still 158.3 MB. Free memory was 133.1 MB in the beginning and 123.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-24 04:47:43,372 INFO L168 Benchmark]: Boogie Preprocessor took 39.09 ms. Allocated memory is still 158.3 MB. Free memory was 123.6 MB in the beginning and 122.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-24 04:47:43,373 INFO L168 Benchmark]: RCFGBuilder took 501.59 ms. Allocated memory is still 158.3 MB. Free memory was 121.9 MB in the beginning and 140.7 MB in the end (delta: -18.8 MB). Peak memory consumption was 20.7 MB. Max. memory is 8.0 GB. [2021-02-24 04:47:43,380 INFO L168 Benchmark]: TraceAbstraction took 1550.26 ms. Allocated memory was 158.3 MB in the beginning and 190.8 MB in the end (delta: 32.5 MB). Free memory was 140.4 MB in the beginning and 127.6 MB in the end (delta: 12.8 MB). Peak memory consumption was 44.2 MB. Max. memory is 8.0 GB. [2021-02-24 04:47:43,391 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 158.3 MB. Free memory was 132.7 MB in the beginning and 132.6 MB in the end (delta: 100.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 261.73 ms. Allocated memory is still 158.3 MB. Free memory was 133.1 MB in the beginning and 123.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 39.09 ms. Allocated memory is still 158.3 MB. Free memory was 123.6 MB in the beginning and 122.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 501.59 ms. Allocated memory is still 158.3 MB. Free memory was 121.9 MB in the beginning and 140.7 MB in the end (delta: -18.8 MB). Peak memory consumption was 20.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1550.26 ms. Allocated memory was 158.3 MB in the beginning and 190.8 MB in the end (delta: 32.5 MB). Free memory was 140.4 MB in the beginning and 127.6 MB in the end (delta: 12.8 MB). Peak memory consumption was 44.2 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: 29]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - ProcedureContractResult [Line: 12]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 6]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 100 SDtfs, 7 SDslu, 95 SDs, 0 SdLazy, 88 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 57 LocationsWithAnnotation, 64 PreInvPairs, 90 NumberOfFragments, 109 HoareAnnotationTreeSize, 64 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 57 FomulaSimplificationsInter, 166 FormulaSimplificationTreeSizeReductionInter, 0.1s 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...