/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/recursive/McCarthy91-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 20:12:01,301 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 20:12:01,306 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 20:12:01,347 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-21 20:12:01,361 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 20:12:01,362 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 20:12:01,364 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 20:12:01,365 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 20:12:01,381 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 20:12:01,382 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 20:12:01,384 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 20:12:01,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 20:12:01,388 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 20:12:01,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 20:12:01,391 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 20:12:01,392 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 20:12:01,395 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-21 20:12:01,405 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 20:12:01,406 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 20:12:01,407 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 20:12:01,409 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 20:12:01,421 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 20:12:01,421 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 20:12:01,423 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 20:12:01,423 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 20:12:01,423 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 20:12:01,424 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 20:12:01,424 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 20:12:01,424 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 20:12:01,424 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 20:12:01,424 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 20:12:01,425 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 20:12:01,425 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 20:12:01,425 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 20:12:01,425 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 20:12:01,425 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 20:12:01,426 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-21 20:12:01,426 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-21 20:12:01,426 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 20:12:01,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 20:12:01,426 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 20:12:01,427 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-21 20:12:01,427 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 20:12:01,427 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 20:12:01,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 20:12:01,833 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 20:12:01,836 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 20:12:01,838 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 20:12:01,838 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 20:12:01,839 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/McCarthy91-2.c [2021-02-21 20:12:01,924 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50cd06126/9645b101742742aba5fe5cf66c08d207/FLAG859b744f7 [2021-02-21 20:12:02,529 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 20:12:02,530 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive/McCarthy91-2.c [2021-02-21 20:12:02,539 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50cd06126/9645b101742742aba5fe5cf66c08d207/FLAG859b744f7 [2021-02-21 20:12:02,893 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50cd06126/9645b101742742aba5fe5cf66c08d207 [2021-02-21 20:12:02,897 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 20:12:02,912 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 20:12:02,919 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 20:12:02,919 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 20:12:02,924 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 20:12:02,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 08:12:02" (1/1) ... [2021-02-21 20:12:02,927 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c987323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:12:02, skipping insertion in model container [2021-02-21 20:12:02,927 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 08:12:02" (1/1) ... [2021-02-21 20:12:02,936 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 20:12:02,952 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 20:12:03,149 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursive/McCarthy91-2.c[749,762] [2021-02-21 20:12:03,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 20:12:03,164 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 20:12:03,181 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursive/McCarthy91-2.c[749,762] [2021-02-21 20:12:03,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 20:12:03,199 INFO L208 MainTranslator]: Completed translation [2021-02-21 20:12:03,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:12:03 WrapperNode [2021-02-21 20:12:03,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 20:12:03,201 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 20:12:03,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 20:12:03,202 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 20:12:03,216 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:12:03" (1/1) ... [2021-02-21 20:12:03,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:12:03" (1/1) ... [2021-02-21 20:12:03,224 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:12:03" (1/1) ... [2021-02-21 20:12:03,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:12:03" (1/1) ... [2021-02-21 20:12:03,230 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:12:03" (1/1) ... [2021-02-21 20:12:03,232 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:12:03" (1/1) ... [2021-02-21 20:12:03,233 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:12:03" (1/1) ... [2021-02-21 20:12:03,236 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 20:12:03,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 20:12:03,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 20:12:03,237 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 20:12:03,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:12:03" (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 20:12:03,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 20:12:03,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 20:12:03,343 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 20:12:03,343 INFO L138 BoogieDeclarations]: Found implementation of procedure f91 [2021-02-21 20:12:03,343 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 20:12:03,343 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 20:12:03,344 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 20:12:03,344 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 20:12:03,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 20:12:03,344 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-21 20:12:03,344 INFO L130 BoogieDeclarations]: Found specification of procedure f91 [2021-02-21 20:12:03,345 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 20:12:03,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 20:12:03,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 20:12:03,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 20:12:03,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 20:12:03,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 20:12:03,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 20:12:03,637 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 20:12:03,638 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-21 20:12:03,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 08:12:03 BoogieIcfgContainer [2021-02-21 20:12:03,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 20:12:03,642 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 20:12:03,643 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 20:12:03,647 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 20:12:03,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 08:12:02" (1/3) ... [2021-02-21 20:12:03,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bbe9856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 08:12:03, skipping insertion in model container [2021-02-21 20:12:03,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 08:12:03" (2/3) ... [2021-02-21 20:12:03,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bbe9856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 08:12:03, skipping insertion in model container [2021-02-21 20:12:03,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 08:12:03" (3/3) ... [2021-02-21 20:12:03,651 INFO L111 eAbstractionObserver]: Analyzing ICFG McCarthy91-2.c [2021-02-21 20:12:03,661 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-21 20:12:03,673 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 20:12:03,721 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 20:12:03,774 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 20:12:03,774 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 20:12:03,774 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-21 20:12:03,775 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 20:12:03,775 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 20:12:03,775 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 20:12:03,775 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 20:12:03,775 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 20:12:03,802 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2021-02-21 20:12:03,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-02-21 20:12:03,847 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:12:03,848 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] [2021-02-21 20:12:03,849 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:12:03,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:12:03,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1435109211, now seen corresponding path program 1 times [2021-02-21 20:12:03,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:12:03,874 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [96574929] [2021-02-21 20:12:03,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:12:03,972 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 20:12:04,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:12:04,192 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:12:04,194 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:12:04,207 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:12:04,211 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-21 20:12:04,265 WARN L141 QuantifierPusher]: treesize reduction 21, result has 52.3 percent of original size [2021-02-21 20:12:04,268 WARN L147 QuantifierPusher]: treesize reduction 21, result has 52.3 percent of original size 23 [2021-02-21 20:12:04,313 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:12:04,315 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:12:04,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:12:04,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:12:04,398 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:12:04,400 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:12:04,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-21 20:12:04,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:12:04,430 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:12:04,431 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:12:04,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:12:04,451 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:12:04,481 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:12:04,483 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-21 20:12:04,521 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 20:12:04,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [96574929] [2021-02-21 20:12:04,525 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 20:12:04,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-21 20:12:04,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982745251] [2021-02-21 20:12:04,532 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-21 20:12:04,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 20:12:04,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-21 20:12:04,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-21 20:12:04,550 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 8 states. [2021-02-21 20:12:04,948 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-02-21 20:12:05,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 20:12:05,388 INFO L93 Difference]: Finished difference Result 55 states and 60 transitions. [2021-02-21 20:12:05,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-21 20:12:05,391 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2021-02-21 20:12:05,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 20:12:05,414 INFO L225 Difference]: With dead ends: 55 [2021-02-21 20:12:05,414 INFO L226 Difference]: Without dead ends: 36 [2021-02-21 20:12:05,424 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2021-02-21 20:12:05,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-02-21 20:12:05,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-02-21 20:12:05,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2021-02-21 20:12:05,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2021-02-21 20:12:05,520 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 26 [2021-02-21 20:12:05,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 20:12:05,521 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2021-02-21 20:12:05,521 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-21 20:12:05,521 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2021-02-21 20:12:05,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-02-21 20:12:05,526 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 20:12:05,526 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 20:12:05,527 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 20:12:05,527 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 20:12:05,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 20:12:05,539 INFO L82 PathProgramCache]: Analyzing trace with hash -1002970728, now seen corresponding path program 1 times [2021-02-21 20:12:05,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 20:12:05,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [497289909] [2021-02-21 20:12:05,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 20:12:05,546 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 20:12:05,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:12:05,620 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:12:05,621 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:12:05,623 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:12:05,624 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:12:05,632 WARN L141 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-02-21 20:12:05,633 WARN L147 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size 7 [2021-02-21 20:12:05,641 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:12:05,642 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:12:05,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 20:12:05,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:12:05,697 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:12:05,698 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:12:05,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-21 20:12:05,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:12:05,755 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:12:05,758 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 20:12:05,760 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:12:05,760 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:12:05,775 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:12:05,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:12:05,794 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:12:05,795 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:12:05,810 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:12:05,813 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:12:05,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-21 20:12:05,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:12:05,845 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:12:05,845 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:12:05,860 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:12:05,860 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 20:12:05,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-02-21 20:12:05,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 20:12:05,890 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:12:05,890 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 20:12:05,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:12:05,892 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-21 20:12:05,913 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 20:12:05,915 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-21 20:12:05,946 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-02-21 20:12:05,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [497289909] [2021-02-21 20:12:05,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 20:12:05,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-21 20:12:05,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164509087] [2021-02-21 20:12:05,949 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-21 20:12:05,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 20:12:05,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-21 20:12:05,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2021-02-21 20:12:05,951 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand 13 states. [2021-02-21 20:12:06,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 20:12:06,774 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2021-02-21 20:12:06,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-21 20:12:06,774 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 42 [2021-02-21 20:12:06,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 20:12:06,776 INFO L225 Difference]: With dead ends: 36 [2021-02-21 20:12:06,776 INFO L226 Difference]: Without dead ends: 0 [2021-02-21 20:12:06,779 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=115, Invalid=485, Unknown=0, NotChecked=0, Total=600 [2021-02-21 20:12:06,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-21 20:12:06,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-21 20:12:06,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-21 20:12:06,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-21 20:12:06,780 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2021-02-21 20:12:06,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 20:12:06,780 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-21 20:12:06,781 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-21 20:12:06,781 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-21 20:12:06,781 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-21 20:12:06,782 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 20:12:06,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-21 20:12:07,797 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-21 20:12:07,798 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-21 20:12:07,798 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-21 20:12:07,798 INFO L192 CegarLoopUtils]: At program point L3-2(line 3) the Hoare annotation is: true [2021-02-21 20:12:07,798 INFO L192 CegarLoopUtils]: At program point L3-3(line 3) the Hoare annotation is: true [2021-02-21 20:12:07,799 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-21 20:12:07,799 INFO L192 CegarLoopUtils]: At program point L3-4(line 3) the Hoare annotation is: true [2021-02-21 20:12:07,800 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-21 20:12:07,800 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2021-02-21 20:12:07,800 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 20:12:07,800 INFO L192 CegarLoopUtils]: At program point L3(line 3) the Hoare annotation is: true [2021-02-21 20:12:07,800 INFO L192 CegarLoopUtils]: At program point L3-1(line 3) the Hoare annotation is: true [2021-02-21 20:12:07,800 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-21 20:12:07,801 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-21 20:12:07,801 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-21 20:12:07,802 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-21 20:12:07,802 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-21 20:12:07,803 INFO L185 CegarLoopUtils]: At program point L32(line 32) the Hoare annotation is: false [2021-02-21 20:12:07,803 INFO L185 CegarLoopUtils]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 32) the Hoare annotation is: false [2021-02-21 20:12:07,803 INFO L185 CegarLoopUtils]: At program point L32-1(line 32) the Hoare annotation is: false [2021-02-21 20:12:07,803 INFO L192 CegarLoopUtils]: At program point L30(line 30) the Hoare annotation is: true [2021-02-21 20:12:07,803 INFO L192 CegarLoopUtils]: At program point mainENTRY(lines 26 34) the Hoare annotation is: true [2021-02-21 20:12:07,804 INFO L185 CegarLoopUtils]: At program point L29(lines 29 33) the Hoare annotation is: (let ((.cse0 (< 90 main_~result~0))) (or (and (<= main_~x~0 (+ main_~result~0 10)) (< (+ main_~result~0 9) main_~x~0) .cse0) (and (<= main_~result~0 91) .cse0))) [2021-02-21 20:12:07,804 INFO L192 CegarLoopUtils]: At program point L28(line 28) the Hoare annotation is: true [2021-02-21 20:12:07,804 INFO L192 CegarLoopUtils]: At program point L27(line 27) the Hoare annotation is: true [2021-02-21 20:12:07,806 INFO L185 CegarLoopUtils]: At program point L28-1(line 28) the Hoare annotation is: (let ((.cse0 (<= 91 |main_#t~ret10|))) (or (and (<= |main_#t~ret10| 91) .cse0) (let ((.cse1 (+ |main_#t~ret10| 10))) (and .cse0 (<= .cse1 main_~x~0) (<= main_~x~0 .cse1))))) [2021-02-21 20:12:07,806 INFO L192 CegarLoopUtils]: At program point L27-1(line 27) the Hoare annotation is: true [2021-02-21 20:12:07,807 INFO L185 CegarLoopUtils]: At program point L28-2(line 28) the Hoare annotation is: (let ((.cse0 (<= 91 |main_#t~ret10|))) (or (and (<= |main_#t~ret10| 91) .cse0) (let ((.cse1 (+ |main_#t~ret10| 10))) (and .cse0 (<= .cse1 main_~x~0) (<= main_~x~0 .cse1))))) [2021-02-21 20:12:07,807 INFO L185 CegarLoopUtils]: At program point L28-3(line 28) the Hoare annotation is: (let ((.cse0 (< 90 main_~result~0))) (or (let ((.cse1 (+ |main_#t~ret10| 10))) (and (<= main_~x~0 (+ main_~result~0 10)) (< (+ main_~result~0 9) main_~x~0) .cse0 (<= .cse1 main_~x~0) (<= main_~x~0 .cse1))) (and (<= main_~result~0 91) (<= |main_#t~ret10| 91) .cse0 (<= 91 |main_#t~ret10|)))) [2021-02-21 20:12:07,807 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 26 34) the Hoare annotation is: true [2021-02-21 20:12:07,809 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 26 34) the Hoare annotation is: true [2021-02-21 20:12:07,810 INFO L185 CegarLoopUtils]: At program point L21(line 21) the Hoare annotation is: (and (<= f91_~x 100) (= f91_~x |f91_#in~x|)) [2021-02-21 20:12:07,810 INFO L185 CegarLoopUtils]: At program point L21-1(line 21) the Hoare annotation is: (and (<= f91_~x 100) (= f91_~x |f91_#in~x|) (<= |f91_#t~ret7| 101)) [2021-02-21 20:12:07,810 INFO L185 CegarLoopUtils]: At program point L19(line 19) the Hoare annotation is: (and (= f91_~x |f91_#in~x|) (<= 101 f91_~x)) [2021-02-21 20:12:07,811 INFO L185 CegarLoopUtils]: At program point L21-2(line 21) the Hoare annotation is: (and (<= f91_~x 100) (= f91_~x |f91_#in~x|) (<= |f91_#t~ret7| 101)) [2021-02-21 20:12:07,811 INFO L185 CegarLoopUtils]: At program point f91EXIT(lines 17 23) the Hoare annotation is: (let ((.cse0 (= f91_~x |f91_#in~x|))) (or (and (<= |f91_#res| 91) (<= f91_~x 100) (<= 91 |f91_#res|) .cse0) (let ((.cse1 (+ |f91_#res| 10))) (and (<= |f91_#in~x| .cse1) (<= .cse1 |f91_#in~x|) .cse0 (<= 101 f91_~x))))) [2021-02-21 20:12:07,811 INFO L185 CegarLoopUtils]: At program point L18(lines 18 22) the Hoare annotation is: (= f91_~x |f91_#in~x|) [2021-02-21 20:12:07,811 INFO L185 CegarLoopUtils]: At program point L21-3(line 21) the Hoare annotation is: (and (<= f91_~x 100) (<= 91 |f91_#t~ret8|) (= f91_~x |f91_#in~x|) (<= |f91_#t~ret8| 91) (<= |f91_#t~ret7| 101)) [2021-02-21 20:12:07,811 INFO L185 CegarLoopUtils]: At program point L21-4(line 21) the Hoare annotation is: (and (<= f91_~x 100) (<= 91 |f91_#t~ret8|) (= f91_~x |f91_#in~x|) (<= |f91_#t~ret8| 91) (<= |f91_#t~ret7| 101)) [2021-02-21 20:12:07,812 INFO L185 CegarLoopUtils]: At program point L21-5(line 21) the Hoare annotation is: (and (<= |f91_#res| 91) (<= f91_~x 100) (<= 91 |f91_#res|) (<= 91 |f91_#t~ret8|) (= f91_~x |f91_#in~x|) (<= |f91_#t~ret8| 91) (<= |f91_#t~ret7| 101)) [2021-02-21 20:12:07,812 INFO L185 CegarLoopUtils]: At program point L21-6(line 21) the Hoare annotation is: (and (<= |f91_#res| 91) (<= f91_~x 100) (<= 91 |f91_#res|) (<= 91 |f91_#t~ret8|) (= f91_~x |f91_#in~x|) (<= |f91_#t~ret8| 91)) [2021-02-21 20:12:07,812 INFO L192 CegarLoopUtils]: At program point f91ENTRY(lines 17 23) the Hoare annotation is: true [2021-02-21 20:12:07,812 INFO L185 CegarLoopUtils]: At program point f91FINAL(lines 17 23) the Hoare annotation is: (let ((.cse0 (= f91_~x |f91_#in~x|))) (or (and (<= |f91_#res| 91) (<= f91_~x 100) (<= 91 |f91_#res|) .cse0) (let ((.cse1 (+ |f91_#res| 10))) (and (<= |f91_#in~x| .cse1) (<= .cse1 |f91_#in~x|) .cse0 (<= 101 f91_~x))))) [2021-02-21 20:12:07,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 08:12:07 BoogieIcfgContainer [2021-02-21 20:12:07,834 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 20:12:07,838 INFO L168 Benchmark]: Toolchain (without parser) took 4935.66 ms. Allocated memory was 158.3 MB in the beginning and 216.0 MB in the end (delta: 57.7 MB). Free memory was 134.9 MB in the beginning and 109.3 MB in the end (delta: 25.6 MB). Peak memory consumption was 118.9 MB. Max. memory is 8.0 GB. [2021-02-21 20:12:07,841 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 158.3 MB. Free memory is still 131.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 20:12:07,841 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.47 ms. Allocated memory is still 158.3 MB. Free memory was 133.6 MB in the beginning and 124.5 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2021-02-21 20:12:07,848 INFO L168 Benchmark]: Boogie Preprocessor took 34.40 ms. Allocated memory is still 158.3 MB. Free memory was 124.5 MB in the beginning and 123.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-21 20:12:07,848 INFO L168 Benchmark]: RCFGBuilder took 403.52 ms. Allocated memory is still 158.3 MB. Free memory was 123.2 MB in the beginning and 109.1 MB in the end (delta: 14.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-02-21 20:12:07,849 INFO L168 Benchmark]: TraceAbstraction took 4191.68 ms. Allocated memory was 158.3 MB in the beginning and 216.0 MB in the end (delta: 57.7 MB). Free memory was 108.8 MB in the beginning and 109.3 MB in the end (delta: -501.3 kB). Peak memory consumption was 92.7 MB. Max. memory is 8.0 GB. [2021-02-21 20:12:07,859 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 158.3 MB. Free memory is still 131.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 281.47 ms. Allocated memory is still 158.3 MB. Free memory was 133.6 MB in the beginning and 124.5 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 34.40 ms. Allocated memory is still 158.3 MB. Free memory was 124.5 MB in the beginning and 123.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 403.52 ms. Allocated memory is still 158.3 MB. Free memory was 123.2 MB in the beginning and 109.1 MB in the end (delta: 14.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4191.68 ms. Allocated memory was 158.3 MB in the beginning and 216.0 MB in the end (delta: 57.7 MB). Free memory was 108.8 MB in the beginning and 109.3 MB in the end (delta: -501.3 kB). Peak memory consumption was 92.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 32]: 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 - ProcedureContractResult [Line: 26]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 17]: Procedure Contract for f91 Derived contract for procedure f91: (((\result <= 91 && x <= 100) && 91 <= \result) && x == \old(x)) || (((\old(x) <= \result + 10 && \result + 10 <= \old(x)) && x == \old(x)) && 101 <= x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.0s, OverallIterations: 2, TraceHistogramMax: 3, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 56 SDtfs, 81 SDslu, 181 SDs, 0 SdLazy, 312 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred 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, 40 LocationsWithAnnotation, 64 PreInvPairs, 83 NumberOfFragments, 331 HoareAnnotationTreeSize, 64 FomulaSimplifications, 235 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 40 FomulaSimplificationsInter, 1061 FormulaSimplificationTreeSizeReductionInter, 0.7s 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...