/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/id_build.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 16:27:33,677 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 16:27:33,682 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 16:27:33,742 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-21 16:27:33,770 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 16:27:33,773 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 16:27:33,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 16:27:33,795 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 16:27:33,798 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 16:27:33,799 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 16:27:33,801 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 16:27:33,803 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 16:27:33,805 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 16:27:33,807 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 16:27:33,808 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 16:27:33,809 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 16:27:33,812 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-21 16:27:33,822 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 16:27:33,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 16:27:33,824 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 16:27:33,825 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-02-21 16:27:33,853 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 16:27:33,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 16:27:33,855 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-21 16:27:33,855 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-21 16:27:33,856 INFO L138 SettingsManager]: * Use SBE=true [2021-02-21 16:27:33,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 16:27:33,856 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 16:27:33,856 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 16:27:33,857 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 16:27:33,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 16:27:33,857 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 16:27:33,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 16:27:33,857 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 16:27:33,858 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 16:27:33,858 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 16:27:33,858 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 16:27:33,858 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 16:27:33,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 16:27:33,859 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-21 16:27:33,859 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 16:27:33,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 16:27:33,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 16:27:33,860 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-21 16:27:33,860 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-21 16:27:33,860 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-21 16:27:33,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-21 16:27:33,861 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 16:27:33,861 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-21 16:27:33,861 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 16:27:34,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 16:27:34,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 16:27:34,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 16:27:34,294 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 16:27:34,297 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 16:27:34,298 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/id_build.i [2021-02-21 16:27:34,379 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b4cfeb1d/bef1390fa5f74116b1dcc8aa55c1b32f/FLAGa1d4446e6 [2021-02-21 16:27:34,947 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 16:27:34,948 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i [2021-02-21 16:27:34,955 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b4cfeb1d/bef1390fa5f74116b1dcc8aa55c1b32f/FLAGa1d4446e6 [2021-02-21 16:27:35,285 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b4cfeb1d/bef1390fa5f74116b1dcc8aa55c1b32f [2021-02-21 16:27:35,294 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 16:27:35,309 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 16:27:35,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 16:27:35,318 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 16:27:35,325 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 16:27:35,326 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:27:35" (1/1) ... [2021-02-21 16:27:35,329 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c06584d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:27:35, skipping insertion in model container [2021-02-21 16:27:35,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:27:35" (1/1) ... [2021-02-21 16:27:35,337 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 16:27:35,360 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 16:27:35,513 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i[893,906] [2021-02-21 16:27:35,525 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 16:27:35,536 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 16:27:35,552 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i[893,906] [2021-02-21 16:27:35,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 16:27:35,575 INFO L208 MainTranslator]: Completed translation [2021-02-21 16:27:35,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:27:35 WrapperNode [2021-02-21 16:27:35,576 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 16:27:35,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 16:27:35,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 16:27:35,577 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 16:27:35,591 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:27:35" (1/1) ... [2021-02-21 16:27:35,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:27:35" (1/1) ... [2021-02-21 16:27:35,600 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:27:35" (1/1) ... [2021-02-21 16:27:35,601 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:27:35" (1/1) ... [2021-02-21 16:27:35,607 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:27:35" (1/1) ... [2021-02-21 16:27:35,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:27:35" (1/1) ... [2021-02-21 16:27:35,614 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:27:35" (1/1) ... [2021-02-21 16:27:35,617 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 16:27:35,618 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 16:27:35,618 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 16:27:35,618 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 16:27:35,619 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:27:35" (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 16:27:35,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 16:27:35,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 16:27:35,738 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 16:27:35,738 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-21 16:27:35,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-21 16:27:35,738 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 16:27:35,738 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 16:27:35,739 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 16:27:35,739 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-21 16:27:35,739 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-21 16:27:35,739 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 16:27:35,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 16:27:35,739 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-21 16:27:35,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-21 16:27:35,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-21 16:27:35,740 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 16:27:35,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 16:27:35,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 16:27:35,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 16:27:35,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 16:27:35,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 16:27:35,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 16:27:36,159 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 16:27:36,160 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-02-21 16:27:36,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:27:36 BoogieIcfgContainer [2021-02-21 16:27:36,194 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 16:27:36,208 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 16:27:36,211 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 16:27:36,215 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 16:27:36,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 04:27:35" (1/3) ... [2021-02-21 16:27:36,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5582747a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 04:27:36, skipping insertion in model container [2021-02-21 16:27:36,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:27:35" (2/3) ... [2021-02-21 16:27:36,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5582747a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 04:27:36, skipping insertion in model container [2021-02-21 16:27:36,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:27:36" (3/3) ... [2021-02-21 16:27:36,225 INFO L111 eAbstractionObserver]: Analyzing ICFG id_build.i [2021-02-21 16:27:36,259 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-21 16:27:36,275 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 16:27:36,297 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 16:27:36,329 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 16:27:36,329 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 16:27:36,329 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-21 16:27:36,330 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 16:27:36,330 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 16:27:36,330 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 16:27:36,330 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 16:27:36,330 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 16:27:36,349 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2021-02-21 16:27:36,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-02-21 16:27:36,356 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:27:36,357 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 16:27:36,357 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:27:36,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:27:36,365 INFO L82 PathProgramCache]: Analyzing trace with hash -1608162196, now seen corresponding path program 1 times [2021-02-21 16:27:36,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:27:36,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18976627] [2021-02-21 16:27:36,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:27:36,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:27:36,702 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:36,704 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:36,706 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:36,707 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:36,716 WARN L141 QuantifierPusher]: treesize reduction 14, result has 17.6 percent of original size [2021-02-21 16:27:36,717 WARN L147 QuantifierPusher]: treesize reduction 14, result has 17.6 percent of original size 3 [2021-02-21 16:27:36,734 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:36,735 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:27:36,748 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:36,749 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:27:36,764 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:36,766 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:36,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:27:36,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:27:36,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:36,840 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:36,844 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 16:27:36,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18976627] [2021-02-21 16:27:36,846 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:27:36,846 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-21 16:27:36,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260844761] [2021-02-21 16:27:36,852 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-21 16:27:36,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:27:36,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-21 16:27:36,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-21 16:27:36,874 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 6 states. [2021-02-21 16:27:37,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:27:37,322 INFO L93 Difference]: Finished difference Result 44 states and 56 transitions. [2021-02-21 16:27:37,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-21 16:27:37,325 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2021-02-21 16:27:37,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:27:37,334 INFO L225 Difference]: With dead ends: 44 [2021-02-21 16:27:37,334 INFO L226 Difference]: Without dead ends: 22 [2021-02-21 16:27:37,338 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-02-21 16:27:37,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-02-21 16:27:37,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-02-21 16:27:37,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2021-02-21 16:27:37,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2021-02-21 16:27:37,382 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 12 [2021-02-21 16:27:37,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:27:37,383 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2021-02-21 16:27:37,383 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-21 16:27:37,383 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2021-02-21 16:27:37,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-02-21 16:27:37,384 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:27:37,384 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 16:27:37,385 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 16:27:37,385 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:27:37,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:27:37,386 INFO L82 PathProgramCache]: Analyzing trace with hash 544405863, now seen corresponding path program 1 times [2021-02-21 16:27:37,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:27:37,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394776774] [2021-02-21 16:27:37,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:27:37,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:27:37,434 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:37,436 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:37,439 WARN L141 QuantifierPusher]: treesize reduction 5, result has 50.0 percent of original size [2021-02-21 16:27:37,441 WARN L147 QuantifierPusher]: treesize reduction 5, result has 50.0 percent of original size 5 [2021-02-21 16:27:37,451 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:37,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:27:37,464 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:37,465 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:27:37,479 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:37,480 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:37,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:27:37,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:27:37,547 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:37,548 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:37,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-02-21 16:27:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:27:37,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:27:37,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:27:37,561 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:27:37,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394776774] [2021-02-21 16:27:37,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:27:37,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-21 16:27:37,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909685178] [2021-02-21 16:27:37,564 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-21 16:27:37,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:27:37,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-21 16:27:37,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-21 16:27:37,566 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 6 states. [2021-02-21 16:27:37,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:27:37,830 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2021-02-21 16:27:37,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-21 16:27:37,837 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2021-02-21 16:27:37,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:27:37,838 INFO L225 Difference]: With dead ends: 22 [2021-02-21 16:27:37,838 INFO L226 Difference]: Without dead ends: 0 [2021-02-21 16:27:37,840 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-02-21 16:27:37,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-21 16:27:37,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-21 16:27:37,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-21 16:27:37,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-21 16:27:37,841 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2021-02-21 16:27:37,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:27:37,841 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-21 16:27:37,841 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-21 16:27:37,842 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-21 16:27:37,842 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-21 16:27:37,842 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 16:27:37,844 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-21 16:27:37,987 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2021-02-21 16:27:37,987 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 12) no Hoare annotation was computed. [2021-02-21 16:27:37,988 INFO L189 CegarLoopUtils]: For program point L12-1(line 12) no Hoare annotation was computed. [2021-02-21 16:27:37,988 INFO L189 CegarLoopUtils]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2021-02-21 16:27:37,995 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string0.offset| |old(#t~string0.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= |#t~string1.offset| |old(#t~string1.offset)|)) [2021-02-21 16:27:37,996 INFO L189 CegarLoopUtils]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2021-02-21 16:27:37,996 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-02-21 16:27:37,996 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-21 16:27:37,996 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-21 16:27:37,996 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-02-21 16:27:37,996 INFO L189 CegarLoopUtils]: For program point L15(line 15) no Hoare annotation was computed. [2021-02-21 16:27:37,997 INFO L189 CegarLoopUtils]: For program point assume_abort_if_notENTRY(lines 14 16) no Hoare annotation was computed. [2021-02-21 16:27:37,997 INFO L189 CegarLoopUtils]: For program point L15-2(lines 14 16) no Hoare annotation was computed. [2021-02-21 16:27:37,997 INFO L189 CegarLoopUtils]: For program point assume_abort_if_notEXIT(lines 14 16) no Hoare annotation was computed. [2021-02-21 16:27:37,997 INFO L185 CegarLoopUtils]: At program point L29(line 29) the Hoare annotation is: (and (< 0 (+ main_~i~0 1)) (< main_~i~0 main_~nlen~0)) [2021-02-21 16:27:37,997 INFO L185 CegarLoopUtils]: At program point L29-1(line 29) the Hoare annotation is: (and (< 0 (+ main_~i~0 1)) (< main_~i~0 main_~nlen~0)) [2021-02-21 16:27:37,997 INFO L189 CegarLoopUtils]: For program point L27-2(lines 27 32) no Hoare annotation was computed. [2021-02-21 16:27:37,998 INFO L189 CegarLoopUtils]: For program point mainEXIT(lines 24 34) no Hoare annotation was computed. [2021-02-21 16:27:37,998 INFO L185 CegarLoopUtils]: At program point L27-3(lines 27 32) the Hoare annotation is: (< 0 (+ main_~i~0 1)) [2021-02-21 16:27:37,998 INFO L189 CegarLoopUtils]: For program point L27-4(lines 27 32) no Hoare annotation was computed. [2021-02-21 16:27:37,998 INFO L189 CegarLoopUtils]: For program point mainFINAL(lines 24 34) no Hoare annotation was computed. [2021-02-21 16:27:37,998 INFO L189 CegarLoopUtils]: For program point L30(lines 28 31) no Hoare annotation was computed. [2021-02-21 16:27:37,998 INFO L192 CegarLoopUtils]: At program point mainENTRY(lines 24 34) the Hoare annotation is: true [2021-02-21 16:27:37,999 INFO L185 CegarLoopUtils]: At program point L28-2(lines 28 31) the Hoare annotation is: (and (< 0 (+ main_~i~0 1)) (< main_~i~0 main_~nlen~0)) [2021-02-21 16:27:37,999 INFO L189 CegarLoopUtils]: For program point L18-2(lines 17 22) no Hoare annotation was computed. [2021-02-21 16:27:37,999 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 17 22) the Hoare annotation is: true [2021-02-21 16:27:37,999 INFO L189 CegarLoopUtils]: For program point __VERIFIER_assertEXIT(lines 17 22) no Hoare annotation was computed. [2021-02-21 16:27:37,999 INFO L189 CegarLoopUtils]: For program point L19(line 19) no Hoare annotation was computed. [2021-02-21 16:27:37,999 INFO L189 CegarLoopUtils]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-02-21 16:27:38,000 INFO L189 CegarLoopUtils]: For program point L18(lines 18 20) no Hoare annotation was computed. [2021-02-21 16:27:38,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 04:27:38 BoogieIcfgContainer [2021-02-21 16:27:38,020 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 16:27:38,023 INFO L168 Benchmark]: Toolchain (without parser) took 2724.68 ms. Allocated memory is still 151.0 MB. Free memory was 127.6 MB in the beginning and 109.1 MB in the end (delta: 18.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 8.0 GB. [2021-02-21 16:27:38,025 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory is still 122.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 16:27:38,027 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.64 ms. Allocated memory is still 151.0 MB. Free memory was 126.3 MB in the beginning and 116.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-21 16:27:38,028 INFO L168 Benchmark]: Boogie Preprocessor took 39.75 ms. Allocated memory is still 151.0 MB. Free memory was 116.2 MB in the beginning and 114.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-21 16:27:38,029 INFO L168 Benchmark]: RCFGBuilder took 576.30 ms. Allocated memory is still 151.0 MB. Free memory was 114.7 MB in the beginning and 134.7 MB in the end (delta: -20.0 MB). Peak memory consumption was 17.7 MB. Max. memory is 8.0 GB. [2021-02-21 16:27:38,036 INFO L168 Benchmark]: TraceAbstraction took 1812.74 ms. Allocated memory is still 151.0 MB. Free memory was 134.4 MB in the beginning and 109.1 MB in the end (delta: 25.3 MB). Peak memory consumption was 25.8 MB. Max. memory is 8.0 GB. [2021-02-21 16:27:38,044 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory is still 122.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 258.64 ms. Allocated memory is still 151.0 MB. Free memory was 126.3 MB in the beginning and 116.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 39.75 ms. Allocated memory is still 151.0 MB. Free memory was 116.2 MB in the beginning and 114.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 576.30 ms. Allocated memory is still 151.0 MB. Free memory was 114.7 MB in the beginning and 134.7 MB in the end (delta: -20.0 MB). Peak memory consumption was 17.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1812.74 ms. Allocated memory is still 151.0 MB. Free memory was 134.4 MB in the beginning and 109.1 MB in the end (delta: 25.3 MB). Peak memory consumption was 25.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: 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: 27]: Loop Invariant Derived loop invariant: 0 < i + 1 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 0 < i + 1 && i < nlen - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.5s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 33 SDtfs, 38 SDslu, 43 SDs, 0 SdLazy, 90 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 9 LocationsWithAnnotation, 12 PreInvPairs, 16 NumberOfFragments, 61 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 153 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 1487 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, 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...