/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/test01.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:34:31,405 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:34:31,409 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:34:31,465 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-23 20:34:31,497 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:34:31,500 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:34:31,502 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:34:31,504 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:34:31,505 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:34:31,517 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:34:31,519 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:34:31,521 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:34:31,523 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:34:31,524 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:34:31,525 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:34:31,526 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:34:31,529 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-23 20:34:31,544 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 20:34:31,557 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:34:31,558 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:34:31,559 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:34:31,560 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:34:31,560 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:34:31,560 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:34:31,560 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:34:31,561 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:34:31,561 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:34:31,561 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:34:31,561 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:34:31,561 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:34:31,562 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:34:31,562 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:34:31,562 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:34:31,562 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:34:31,562 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:34:31,563 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:34:31,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:34:31,563 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:34:31,563 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:34:31,564 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:34:31,564 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:34:31,947 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:34:31,976 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:34:31,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:34:31,982 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:34:31,982 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:34:31,983 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test01.c [2020-10-23 20:34:32,067 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91296af57/b823833c4e4f43e28b063f1566524ac6/FLAG51be82d44 [2020-10-23 20:34:32,663 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:34:32,664 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test01.c [2020-10-23 20:34:32,671 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91296af57/b823833c4e4f43e28b063f1566524ac6/FLAG51be82d44 [2020-10-23 20:34:33,017 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91296af57/b823833c4e4f43e28b063f1566524ac6 [2020-10-23 20:34:33,020 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:34:33,027 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:34:33,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:34:33,029 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:34:33,038 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:34:33,039 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:34:33" (1/1) ... [2020-10-23 20:34:33,044 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@276320dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:33, skipping insertion in model container [2020-10-23 20:34:33,044 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:34:33" (1/1) ... [2020-10-23 20:34:33,053 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:34:33,070 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:34:33,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:34:33,231 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:34:33,249 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:34:33,268 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:34:33,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:33 WrapperNode [2020-10-23 20:34:33,269 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:34:33,270 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:34:33,271 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:34:33,271 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:34:33,286 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:33" (1/1) ... [2020-10-23 20:34:33,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:33" (1/1) ... [2020-10-23 20:34:33,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:33" (1/1) ... [2020-10-23 20:34:33,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:33" (1/1) ... [2020-10-23 20:34:33,301 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:33" (1/1) ... [2020-10-23 20:34:33,304 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:33" (1/1) ... [2020-10-23 20:34:33,305 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:33" (1/1) ... [2020-10-23 20:34:33,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:34:33,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:34:33,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:34:33,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:34:33,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:33" (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 [2020-10-23 20:34:33,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:34:33,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:34:33,398 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:34:33,398 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:34:33,398 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:34:33,398 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:34:33,399 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:34:33,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:34:33,399 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:34:33,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:34:33,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:34:33,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:34:33,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:34:33,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:34:33,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:34:33,816 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:34:33,817 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-23 20:34:33,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:34:33 BoogieIcfgContainer [2020-10-23 20:34:33,821 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:34:33,825 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:34:33,827 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:34:33,831 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:34:33,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:34:33" (1/3) ... [2020-10-23 20:34:33,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58aef210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:34:33, skipping insertion in model container [2020-10-23 20:34:33,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:34:33" (2/3) ... [2020-10-23 20:34:33,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58aef210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:34:33, skipping insertion in model container [2020-10-23 20:34:33,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:34:33" (3/3) ... [2020-10-23 20:34:33,839 INFO L111 eAbstractionObserver]: Analyzing ICFG test01.c [2020-10-23 20:34:33,855 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:34:33,865 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 20:34:33,884 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 20:34:33,922 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:34:33,922 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:34:33,923 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:34:33,923 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:34:33,923 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:34:33,923 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:34:33,923 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:34:33,923 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:34:33,944 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-10-23 20:34:33,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-23 20:34:33,960 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:34:33,961 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:34:33,963 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:34:33,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:34:33,973 INFO L82 PathProgramCache]: Analyzing trace with hash -162222842, now seen corresponding path program 1 times [2020-10-23 20:34:33,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:34:33,985 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [418848132] [2020-10-23 20:34:33,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:34:34,109 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:34:34,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:34,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:34:34,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:34:34,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:34:34,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [418848132] [2020-10-23 20:34:34,541 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:34:34,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 20:34:34,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886151751] [2020-10-23 20:34:34,548 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 20:34:34,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:34:34,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 20:34:34,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-23 20:34:34,568 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 7 states. [2020-10-23 20:34:34,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:34:34,762 INFO L93 Difference]: Finished difference Result 41 states and 40 transitions. [2020-10-23 20:34:34,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-23 20:34:34,764 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-23 20:34:34,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:34:34,771 INFO L225 Difference]: With dead ends: 41 [2020-10-23 20:34:34,772 INFO L226 Difference]: Without dead ends: 0 [2020-10-23 20:34:34,776 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-23 20:34:34,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-23 20:34:34,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-23 20:34:34,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-23 20:34:34,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-23 20:34:34,805 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-10-23 20:34:34,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:34:34,805 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-23 20:34:34,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 20:34:34,805 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-23 20:34:34,806 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-23 20:34:34,806 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:34:34,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-23 20:34:35,025 INFO L277 CegarLoopResult]: At program point reach_errorEXIT(line 3) the Hoare annotation is: true [2020-10-23 20:34:35,026 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-23 20:34:35,026 INFO L277 CegarLoopResult]: At program point reach_errorFINAL(line 3) the Hoare annotation is: true [2020-10-23 20:34:35,026 INFO L277 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) the Hoare annotation is: true [2020-10-23 20:34:35,027 INFO L277 CegarLoopResult]: At program point L3-2(line 3) the Hoare annotation is: true [2020-10-23 20:34:35,029 INFO L277 CegarLoopResult]: At program point L3-3(line 3) the Hoare annotation is: true [2020-10-23 20:34:35,029 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-23 20:34:35,030 INFO L277 CegarLoopResult]: At program point L3-4(line 3) the Hoare annotation is: true [2020-10-23 20:34:35,030 INFO L277 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-10-23 20:34:35,030 INFO L277 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2020-10-23 20:34:35,031 INFO L270 CegarLoopResult]: 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|)) [2020-10-23 20:34:35,031 INFO L277 CegarLoopResult]: At program point L3(line 3) the Hoare annotation is: true [2020-10-23 20:34:35,031 INFO L277 CegarLoopResult]: At program point L3-1(line 3) the Hoare annotation is: true [2020-10-23 20:34:35,031 INFO L277 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-10-23 20:34:35,031 INFO L277 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-10-23 20:34:35,031 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-23 20:34:35,032 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-23 20:34:35,032 INFO L277 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-10-23 20:34:35,032 INFO L270 CegarLoopResult]: At program point L7-6(line 7) the Hoare annotation is: false [2020-10-23 20:34:35,032 INFO L270 CegarLoopResult]: At program point L7-7(line 7) the Hoare annotation is: false [2020-10-23 20:34:35,032 INFO L270 CegarLoopResult]: At program point L7-8(line 7) the Hoare annotation is: false [2020-10-23 20:34:35,033 INFO L270 CegarLoopResult]: At program point L7-9(line 7) the Hoare annotation is: false [2020-10-23 20:34:35,033 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 6 19) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-10-23 20:34:35,033 INFO L270 CegarLoopResult]: At program point mainEXIT(lines 6 19) the Hoare annotation is: (not (= main_~p1~0.base main_~p2~0.base)) [2020-10-23 20:34:35,033 INFO L270 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: false [2020-10-23 20:34:35,033 INFO L270 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: false [2020-10-23 20:34:35,034 INFO L270 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (not (= main_~p1~0.base main_~p2~0.base)) (not (= main_~p1~0.base |main_~#b~0.base|)) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1)) [2020-10-23 20:34:35,034 INFO L270 CegarLoopResult]: At program point mainFINAL(lines 6 19) the Hoare annotation is: (not (= main_~p1~0.base main_~p2~0.base)) [2020-10-23 20:34:35,034 INFO L270 CegarLoopResult]: At program point L12(lines 6 19) the Hoare annotation is: false [2020-10-23 20:34:35,034 INFO L270 CegarLoopResult]: At program point L11(lines 11 13) the Hoare annotation is: (and (not (= main_~p1~0.base main_~p2~0.base)) (not (= main_~p1~0.base |main_~#b~0.base|)) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1)) [2020-10-23 20:34:35,035 INFO L270 CegarLoopResult]: At program point L9(line 9) the Hoare annotation is: (and (not (= main_~p1~0.base |main_~#b~0.base|)) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1)) [2020-10-23 20:34:35,035 INFO L270 CegarLoopResult]: At program point L7(line 7) the Hoare annotation is: (= (select |#valid| |main_~#a~0.base|) 1) [2020-10-23 20:34:35,035 INFO L270 CegarLoopResult]: At program point L7-1(line 7) the Hoare annotation is: (and (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1)) [2020-10-23 20:34:35,036 INFO L270 CegarLoopResult]: At program point L7-2(line 7) the Hoare annotation is: (and (not (= main_~p1~0.base main_~p2~0.base)) (not (= main_~p1~0.base |main_~#b~0.base|)) (not (= |main_~#b~0.base| |main_~#a~0.base|)) (= (select |#valid| |main_~#a~0.base|) 1)) [2020-10-23 20:34:35,036 INFO L270 CegarLoopResult]: At program point L7-3(line 7) the Hoare annotation is: (and (not (= main_~p1~0.base main_~p2~0.base)) (not (= main_~p1~0.base |main_~#b~0.base|)) (not (= |main_~#b~0.base| |main_~#a~0.base|))) [2020-10-23 20:34:35,036 INFO L270 CegarLoopResult]: At program point L7-4(line 7) the Hoare annotation is: (and (not (= main_~p1~0.base main_~p2~0.base)) (not (= main_~p1~0.base |main_~#b~0.base|))) [2020-10-23 20:34:35,036 INFO L270 CegarLoopResult]: At program point L7-5(line 7) the Hoare annotation is: (and (not (= main_~p1~0.base main_~p2~0.base)) (not (= main_~p1~0.base |main_~#b~0.base|))) [2020-10-23 20:34:35,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:34:35 BoogieIcfgContainer [2020-10-23 20:34:35,056 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:34:35,058 INFO L168 Benchmark]: Toolchain (without parser) took 2035.67 ms. Allocated memory is still 151.0 MB. Free memory was 127.0 MB in the beginning and 73.2 MB in the end (delta: 53.8 MB). Peak memory consumption was 54.4 MB. Max. memory is 8.0 GB. [2020-10-23 20:34:35,059 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 125.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:34:35,060 INFO L168 Benchmark]: CACSL2BoogieTranslator took 241.07 ms. Allocated memory is still 151.0 MB. Free memory was 126.3 MB in the beginning and 116.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-23 20:34:35,061 INFO L168 Benchmark]: Boogie Preprocessor took 37.10 ms. Allocated memory is still 151.0 MB. Free memory was 116.8 MB in the beginning and 115.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:34:35,063 INFO L168 Benchmark]: RCFGBuilder took 512.36 ms. Allocated memory is still 151.0 MB. Free memory was 115.5 MB in the beginning and 101.9 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-10-23 20:34:35,063 INFO L168 Benchmark]: TraceAbstraction took 1230.31 ms. Allocated memory is still 151.0 MB. Free memory was 101.6 MB in the beginning and 73.2 MB in the end (delta: 28.4 MB). Peak memory consumption was 29.2 MB. Max. memory is 8.0 GB. [2020-10-23 20:34:35,068 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 125.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 241.07 ms. Allocated memory is still 151.0 MB. Free memory was 126.3 MB in the beginning and 116.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 37.10 ms. Allocated memory is still 151.0 MB. Free memory was 116.8 MB in the beginning and 115.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 512.36 ms. Allocated memory is still 151.0 MB. Free memory was 115.5 MB in the beginning and 101.9 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1230.31 ms. Allocated memory is still 151.0 MB. Free memory was 101.6 MB in the beginning and 73.2 MB in the end (delta: 28.4 MB). Peak memory consumption was 29.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 3]: Procedure Contract for reach_error Derived contract for procedure reach_error: 1 - ProcedureContractResult [Line: 6]: Procedure Contract for main Derived contract for procedure main: !(p1 == p2) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 18 SDtfs, 19 SDslu, 61 SDs, 0 SdLazy, 42 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 37 LocationsWithAnnotation, 37 PreInvPairs, 41 NumberOfFragments, 184 HoareAnnotationTreeSize, 37 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 37 FomulaSimplificationsInter, 24 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...